[PATCH] avr32 architecture
authorHaavard Skinnemoen <hskinnemoen@atmel.com>
Tue, 26 Sep 2006 06:32:13 +0000 (23:32 -0700)
committerLinus Torvalds <torvalds@g5.osdl.org>
Tue, 26 Sep 2006 15:48:54 +0000 (08:48 -0700)
This adds support for the Atmel AVR32 architecture as well as the AT32AP7000
CPU and the AT32STK1000 development board.

AVR32 is a new high-performance 32-bit RISC microprocessor core, designed for
cost-sensitive embedded applications, with particular emphasis on low power
consumption and high code density.  The AVR32 architecture is not binary
compatible with earlier 8-bit AVR architectures.

The AVR32 architecture, including the instruction set, is described by the
AVR32 Architecture Manual, available from

http://www.atmel.com/dyn/resources/prod_documents/doc32000.pdf

The Atmel AT32AP7000 is the first CPU implementing the AVR32 architecture.  It
features a 7-stage pipeline, 16KB instruction and data caches and a full
Memory Management Unit.  It also comes with a large set of integrated
peripherals, many of which are shared with the AT91 ARM-based controllers from
Atmel.

Full data sheet is available from

http://www.atmel.com/dyn/resources/prod_documents/doc32003.pdf

while the CPU core implementation including caches and MMU is documented by
the AVR32 AP Technical Reference, available from

http://www.atmel.com/dyn/resources/prod_documents/doc32001.pdf

Information about the AT32STK1000 development board can be found at

http://www.atmel.com/dyn/products/tools_card.asp?tool_id=3918

including a BSP CD image with an earlier version of this patch, development
tools (binaries and source/patches) and a root filesystem image suitable for
booting from SD card.

Alternatively, there's a preliminary "getting started" guide available at
http://avr32linux.org/twiki/bin/view/Main/GettingStarted which provides links
to the sources and patches you will need in order to set up a cross-compiling
environment for avr32-linux.

This patch, as well as the other patches included with the BSP and the
toolchain patches, is actively supported by Atmel Corporation.

[dmccr@us.ibm.com: Fix more pxx_page macro locations]
[bunk@stusta.de: fix `make defconfig']
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Dave McCracken <dmccr@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
176 files changed:
MAINTAINERS
arch/avr32/Kconfig [new file with mode: 0644]
arch/avr32/Kconfig.debug [new file with mode: 0644]
arch/avr32/Makefile [new file with mode: 0644]
arch/avr32/boards/atstk1000/Makefile [new file with mode: 0644]
arch/avr32/boards/atstk1000/atstk1002.c [new file with mode: 0644]
arch/avr32/boards/atstk1000/setup.c [new file with mode: 0644]
arch/avr32/boards/atstk1000/spi.c [new file with mode: 0644]
arch/avr32/boot/images/Makefile [new file with mode: 0644]
arch/avr32/boot/u-boot/Makefile [new file with mode: 0644]
arch/avr32/boot/u-boot/empty.S [new file with mode: 0644]
arch/avr32/boot/u-boot/head.S [new file with mode: 0644]
arch/avr32/configs/atstk1002_defconfig [new file with mode: 0644]
arch/avr32/kernel/Makefile [new file with mode: 0644]
arch/avr32/kernel/asm-offsets.c [new file with mode: 0644]
arch/avr32/kernel/avr32_ksyms.c [new file with mode: 0644]
arch/avr32/kernel/cpu.c [new file with mode: 0644]
arch/avr32/kernel/entry-avr32b.S [new file with mode: 0644]
arch/avr32/kernel/head.S [new file with mode: 0644]
arch/avr32/kernel/init_task.c [new file with mode: 0644]
arch/avr32/kernel/irq.c [new file with mode: 0644]
arch/avr32/kernel/kprobes.c [new file with mode: 0644]
arch/avr32/kernel/module.c [new file with mode: 0644]
arch/avr32/kernel/process.c [new file with mode: 0644]
arch/avr32/kernel/ptrace.c [new file with mode: 0644]
arch/avr32/kernel/semaphore.c [new file with mode: 0644]
arch/avr32/kernel/setup.c [new file with mode: 0644]
arch/avr32/kernel/signal.c [new file with mode: 0644]
arch/avr32/kernel/switch_to.S [new file with mode: 0644]
arch/avr32/kernel/sys_avr32.c [new file with mode: 0644]
arch/avr32/kernel/syscall-stubs.S [new file with mode: 0644]
arch/avr32/kernel/syscall_table.S [new file with mode: 0644]
arch/avr32/kernel/time.c [new file with mode: 0644]
arch/avr32/kernel/traps.c [new file with mode: 0644]
arch/avr32/kernel/vmlinux.lds.c [new file with mode: 0644]
arch/avr32/lib/Makefile [new file with mode: 0644]
arch/avr32/lib/__avr32_asr64.S [new file with mode: 0644]
arch/avr32/lib/__avr32_lsl64.S [new file with mode: 0644]
arch/avr32/lib/__avr32_lsr64.S [new file with mode: 0644]
arch/avr32/lib/clear_user.S [new file with mode: 0644]
arch/avr32/lib/copy_user.S [new file with mode: 0644]
arch/avr32/lib/csum_partial.S [new file with mode: 0644]
arch/avr32/lib/csum_partial_copy_generic.S [new file with mode: 0644]
arch/avr32/lib/delay.c [new file with mode: 0644]
arch/avr32/lib/findbit.S [new file with mode: 0644]
arch/avr32/lib/io-readsl.S [new file with mode: 0644]
arch/avr32/lib/io-readsw.S [new file with mode: 0644]
arch/avr32/lib/io-writesl.S [new file with mode: 0644]
arch/avr32/lib/io-writesw.S [new file with mode: 0644]
arch/avr32/lib/libgcc.h [new file with mode: 0644]
arch/avr32/lib/longlong.h [new file with mode: 0644]
arch/avr32/lib/memcpy.S [new file with mode: 0644]
arch/avr32/lib/memset.S [new file with mode: 0644]
arch/avr32/lib/strncpy_from_user.S [new file with mode: 0644]
arch/avr32/lib/strnlen_user.S [new file with mode: 0644]
arch/avr32/mach-at32ap/Makefile [new file with mode: 0644]
arch/avr32/mach-at32ap/at32ap.c [new file with mode: 0644]
arch/avr32/mach-at32ap/at32ap7000.c [new file with mode: 0644]
arch/avr32/mach-at32ap/clock.c [new file with mode: 0644]
arch/avr32/mach-at32ap/clock.h [new file with mode: 0644]
arch/avr32/mach-at32ap/extint.c [new file with mode: 0644]
arch/avr32/mach-at32ap/intc.c [new file with mode: 0644]
arch/avr32/mach-at32ap/intc.h [new file with mode: 0644]
arch/avr32/mach-at32ap/pio.c [new file with mode: 0644]
arch/avr32/mach-at32ap/pio.h [new file with mode: 0644]
arch/avr32/mach-at32ap/sm.c [new file with mode: 0644]
arch/avr32/mach-at32ap/sm.h [new file with mode: 0644]
arch/avr32/mm/Makefile [new file with mode: 0644]
arch/avr32/mm/cache.c [new file with mode: 0644]
arch/avr32/mm/clear_page.S [new file with mode: 0644]
arch/avr32/mm/copy_page.S [new file with mode: 0644]
arch/avr32/mm/dma-coherent.c [new file with mode: 0644]
arch/avr32/mm/fault.c [new file with mode: 0644]
arch/avr32/mm/init.c [new file with mode: 0644]
arch/avr32/mm/ioremap.c [new file with mode: 0644]
arch/avr32/mm/tlb.c [new file with mode: 0644]
include/asm-avr32/Kbuild [new file with mode: 0644]
include/asm-avr32/a.out.h [new file with mode: 0644]
include/asm-avr32/addrspace.h [new file with mode: 0644]
include/asm-avr32/arch-at32ap/at91rm9200_pdc.h [new file with mode: 0644]
include/asm-avr32/arch-at32ap/at91rm9200_usart.h [new file with mode: 0644]
include/asm-avr32/arch-at32ap/board.h [new file with mode: 0644]
include/asm-avr32/arch-at32ap/init.h [new file with mode: 0644]
include/asm-avr32/arch-at32ap/portmux.h [new file with mode: 0644]
include/asm-avr32/arch-at32ap/sm.h [new file with mode: 0644]
include/asm-avr32/asm.h [new file with mode: 0644]
include/asm-avr32/atomic.h [new file with mode: 0644]
include/asm-avr32/auxvec.h [new file with mode: 0644]
include/asm-avr32/bitops.h [new file with mode: 0644]
include/asm-avr32/bug.h [new file with mode: 0644]
include/asm-avr32/bugs.h [new file with mode: 0644]
include/asm-avr32/byteorder.h [new file with mode: 0644]
include/asm-avr32/cache.h [new file with mode: 0644]
include/asm-avr32/cachectl.h [new file with mode: 0644]
include/asm-avr32/cacheflush.h [new file with mode: 0644]
include/asm-avr32/checksum.h [new file with mode: 0644]
include/asm-avr32/cputime.h [new file with mode: 0644]
include/asm-avr32/current.h [new file with mode: 0644]
include/asm-avr32/delay.h [new file with mode: 0644]
include/asm-avr32/div64.h [new file with mode: 0644]
include/asm-avr32/dma-mapping.h [new file with mode: 0644]
include/asm-avr32/dma.h [new file with mode: 0644]
include/asm-avr32/elf.h [new file with mode: 0644]
include/asm-avr32/emergency-restart.h [new file with mode: 0644]
include/asm-avr32/errno.h [new file with mode: 0644]
include/asm-avr32/fcntl.h [new file with mode: 0644]
include/asm-avr32/futex.h [new file with mode: 0644]
include/asm-avr32/hardirq.h [new file with mode: 0644]
include/asm-avr32/hw_irq.h [new file with mode: 0644]
include/asm-avr32/intc.h [new file with mode: 0644]
include/asm-avr32/io.h [new file with mode: 0644]
include/asm-avr32/ioctl.h [new file with mode: 0644]
include/asm-avr32/ioctls.h [new file with mode: 0644]
include/asm-avr32/ipcbuf.h [new file with mode: 0644]
include/asm-avr32/irq.h [new file with mode: 0644]
include/asm-avr32/irqflags.h [new file with mode: 0644]
include/asm-avr32/kdebug.h [new file with mode: 0644]
include/asm-avr32/kmap_types.h [new file with mode: 0644]
include/asm-avr32/kprobes.h [new file with mode: 0644]
include/asm-avr32/linkage.h [new file with mode: 0644]
include/asm-avr32/local.h [new file with mode: 0644]
include/asm-avr32/mach/serial_at91.h [new file with mode: 0644]
include/asm-avr32/mman.h [new file with mode: 0644]
include/asm-avr32/mmu.h [new file with mode: 0644]
include/asm-avr32/mmu_context.h [new file with mode: 0644]
include/asm-avr32/module.h [new file with mode: 0644]
include/asm-avr32/msgbuf.h [new file with mode: 0644]
include/asm-avr32/mutex.h [new file with mode: 0644]
include/asm-avr32/namei.h [new file with mode: 0644]
include/asm-avr32/numnodes.h [new file with mode: 0644]
include/asm-avr32/ocd.h [new file with mode: 0644]
include/asm-avr32/page.h [new file with mode: 0644]
include/asm-avr32/param.h [new file with mode: 0644]
include/asm-avr32/pci.h [new file with mode: 0644]
include/asm-avr32/percpu.h [new file with mode: 0644]
include/asm-avr32/pgalloc.h [new file with mode: 0644]
include/asm-avr32/pgtable-2level.h [new file with mode: 0644]
include/asm-avr32/pgtable.h [new file with mode: 0644]
include/asm-avr32/poll.h [new file with mode: 0644]
include/asm-avr32/posix_types.h [new file with mode: 0644]
include/asm-avr32/processor.h [new file with mode: 0644]
include/asm-avr32/ptrace.h [new file with mode: 0644]
include/asm-avr32/resource.h [new file with mode: 0644]
include/asm-avr32/scatterlist.h [new file with mode: 0644]
include/asm-avr32/sections.h [new file with mode: 0644]
include/asm-avr32/semaphore.h [new file with mode: 0644]
include/asm-avr32/sembuf.h [new file with mode: 0644]
include/asm-avr32/setup.h [new file with mode: 0644]
include/asm-avr32/shmbuf.h [new file with mode: 0644]
include/asm-avr32/shmparam.h [new file with mode: 0644]
include/asm-avr32/sigcontext.h [new file with mode: 0644]
include/asm-avr32/siginfo.h [new file with mode: 0644]
include/asm-avr32/signal.h [new file with mode: 0644]
include/asm-avr32/socket.h [new file with mode: 0644]
include/asm-avr32/sockios.h [new file with mode: 0644]
include/asm-avr32/stat.h [new file with mode: 0644]
include/asm-avr32/statfs.h [new file with mode: 0644]
include/asm-avr32/string.h [new file with mode: 0644]
include/asm-avr32/sysreg.h [new file with mode: 0644]
include/asm-avr32/system.h [new file with mode: 0644]
include/asm-avr32/termbits.h [new file with mode: 0644]
include/asm-avr32/termios.h [new file with mode: 0644]
include/asm-avr32/thread_info.h [new file with mode: 0644]
include/asm-avr32/timex.h [new file with mode: 0644]
include/asm-avr32/tlb.h [new file with mode: 0644]
include/asm-avr32/tlbflush.h [new file with mode: 0644]
include/asm-avr32/topology.h [new file with mode: 0644]
include/asm-avr32/traps.h [new file with mode: 0644]
include/asm-avr32/types.h [new file with mode: 0644]
include/asm-avr32/uaccess.h [new file with mode: 0644]
include/asm-avr32/ucontext.h [new file with mode: 0644]
include/asm-avr32/unaligned.h [new file with mode: 0644]
include/asm-avr32/unistd.h [new file with mode: 0644]
include/asm-avr32/user.h [new file with mode: 0644]
include/linux/elf-em.h
lib/Kconfig.debug

index 23348c0d37bc6a153b78dcbe78b010626f594f54..767a43434ae80fa6940c36b6cf6799dddb85270c 100644 (file)
@@ -443,6 +443,23 @@ W: http://people.redhat.com/sgrubb/audit/
 T:     git kernel.org:/pub/scm/linux/kernel/git/dwmw2/audit-2.6.git
 S:     Maintained
 
+AVR32 ARCHITECTURE
+P:     Atmel AVR32 Support Team
+M:     avr32@atmel.com
+P:     Haavard Skinnemoen
+M:     hskinnemoen@atmel.com
+W:     http://www.atmel.com/products/AVR32/
+W:     http://avr32linux.org/
+W:     http://avrfreaks.net/
+S:     Supported
+
+AVR32/AT32AP MACHINE SUPPORT
+P:     Atmel AVR32 Support Team
+M:     avr32@atmel.com
+P:     Haavard Skinnemoen
+M:     hskinnemoen@atmel.com
+S:     Supported
+
 AX.25 NETWORK LAYER
 P:     Ralf Baechle
 M:     ralf@linux-mips.org
diff --git a/arch/avr32/Kconfig b/arch/avr32/Kconfig
new file mode 100644 (file)
index 0000000..5f1694e
--- /dev/null
@@ -0,0 +1,196 @@
+#
+# For a description of the syntax of this configuration file,
+# see Documentation/kbuild/kconfig-language.txt.
+#
+
+mainmenu "Linux Kernel Configuration"
+
+config AVR32
+       bool
+       default y
+       # With EMBEDDED=n, we get lots of stuff automatically selected
+       # that we usually don't need on AVR32.
+       select EMBEDDED
+       help
+         AVR32 is a high-performance 32-bit RISC microprocessor core,
+         designed for cost-sensitive embedded applications, with particular
+         emphasis on low power consumption and high code density.
+
+         There is an AVR32 Linux project with a web page at
+         http://avr32linux.org/.
+
+config UID16
+       bool
+
+config GENERIC_HARDIRQS
+       bool
+       default y
+
+config HARDIRQS_SW_RESEND
+       bool
+       default y
+
+config GENERIC_IRQ_PROBE
+       bool
+       default y
+
+config RWSEM_GENERIC_SPINLOCK
+       bool
+       default y
+
+config GENERIC_TIME
+       bool
+       default y
+
+config RWSEM_XCHGADD_ALGORITHM
+       bool
+
+config GENERIC_BUST_SPINLOCK
+       bool
+
+config GENERIC_HWEIGHT
+       bool
+       default y
+
+config GENERIC_CALIBRATE_DELAY
+       bool
+       default y
+
+source "init/Kconfig"
+
+menu "System Type and features"
+
+config SUBARCH_AVR32B
+       bool
+config MMU
+       bool
+config PERFORMANCE_COUNTERS
+       bool
+
+config PLATFORM_AT32AP
+       bool
+       select SUBARCH_AVR32B
+       select MMU
+       select PERFORMANCE_COUNTERS
+
+choice
+       prompt "AVR32 CPU type"
+       default CPU_AT32AP7000
+
+config CPU_AT32AP7000
+       bool "AT32AP7000"
+       select PLATFORM_AT32AP
+endchoice
+
+#
+# CPU Daughterboards for ATSTK1000
+config BOARD_ATSTK1002
+       bool
+
+choice
+       prompt "AVR32 board type"
+       default BOARD_ATSTK1000
+
+config BOARD_ATSTK1000
+       bool "ATSTK1000 evaluation board"
+       select BOARD_ATSTK1002 if CPU_AT32AP7000
+endchoice
+
+choice
+       prompt "Boot loader type"
+       default LOADER_U_BOOT
+
+config LOADER_U_BOOT
+       bool "U-Boot (or similar) bootloader"
+endchoice
+
+config LOAD_ADDRESS
+       hex
+       default 0x10000000 if LOADER_U_BOOT=y && CPU_AT32AP7000=y
+
+config ENTRY_ADDRESS
+       hex
+       default 0x90000000 if LOADER_U_BOOT=y && CPU_AT32AP7000=y
+
+config PHYS_OFFSET
+       hex
+       default 0x10000000 if CPU_AT32AP7000=y
+
+source "kernel/Kconfig.preempt"
+
+config HAVE_ARCH_BOOTMEM_NODE
+       bool
+       default n
+
+config ARCH_HAVE_MEMORY_PRESENT
+       bool
+       default n
+
+config NEED_NODE_MEMMAP_SIZE
+       bool
+       default n
+
+config ARCH_FLATMEM_ENABLE
+       bool
+       default y
+
+config ARCH_DISCONTIGMEM_ENABLE
+       bool
+       default n
+
+config ARCH_SPARSEMEM_ENABLE
+       bool
+       default n
+
+source "mm/Kconfig"
+
+config OWNERSHIP_TRACE
+       bool "Ownership trace support"
+       default y
+       help
+         Say Y to generate an Ownership Trace message on every context switch,
+         enabling Nexus-compliant debuggers to keep track of the PID of the
+         currently executing task.
+
+# FPU emulation goes here
+
+source "kernel/Kconfig.hz"
+
+config CMDLINE
+       string "Default kernel command line"
+       default ""
+       help
+         If you don't have a boot loader capable of passing a command line string
+         to the kernel, you may specify one here. As a minimum, you should specify
+         the memory size and the root device (e.g., mem=8M, root=/dev/nfs).
+
+endmenu
+
+menu "Bus options"
+
+config PCI
+       bool
+
+source "drivers/pci/Kconfig"
+
+source "drivers/pcmcia/Kconfig"
+
+endmenu
+
+menu "Executable file formats"
+source "fs/Kconfig.binfmt"
+endmenu
+
+source "net/Kconfig"
+
+source "drivers/Kconfig"
+
+source "fs/Kconfig"
+
+source "arch/avr32/Kconfig.debug"
+
+source "security/Kconfig"
+
+source "crypto/Kconfig"
+
+source "lib/Kconfig"
diff --git a/arch/avr32/Kconfig.debug b/arch/avr32/Kconfig.debug
new file mode 100644 (file)
index 0000000..64ace00
--- /dev/null
@@ -0,0 +1,19 @@
+menu "Kernel hacking"
+
+config TRACE_IRQFLAGS_SUPPORT
+       bool
+       default y
+
+source "lib/Kconfig.debug"
+
+config KPROBES
+       bool "Kprobes"
+       depends on DEBUG_KERNEL
+       help
+         Kprobes allows you to trap at almost any kernel address and
+          execute a callback function.  register_kprobe() establishes
+          a probepoint and specifies the callback.  Kprobes is useful
+          for kernel debugging, non-intrusive instrumentation and testing.
+          If in doubt, say "N".
+
+endmenu
diff --git a/arch/avr32/Makefile b/arch/avr32/Makefile
new file mode 100644 (file)
index 0000000..cefc95a
--- /dev/null
@@ -0,0 +1,84 @@
+#
+# This file is subject to the terms and conditions of the GNU General Public
+# License.  See the file "COPYING" in the main directory of this archive
+# for more details.
+#
+# Copyright (C) 2004-2006 Atmel Corporation.
+
+# Default target when executing plain make
+.PHONY: all
+all: uImage vmlinux.elf linux.lst
+
+KBUILD_DEFCONFIG       := atstk1002_defconfig
+
+CFLAGS         += -pipe -fno-builtin -mno-pic
+AFLAGS         += -mrelax -mno-pic
+CFLAGS_MODULE  += -mno-relax
+LDFLAGS_vmlinux        += --relax
+
+cpuflags-$(CONFIG_CPU_AP7000)  += -mcpu=ap7000
+
+CFLAGS         += $(cpuflags-y)
+AFLAGS         += $(cpuflags-y)
+
+CHECKFLAGS     += -D__avr32__
+
+LIBGCC         := $(shell $(CC) $(CFLAGS) -print-libgcc-file-name)
+
+head-$(CONFIG_LOADER_U_BOOT)           += arch/avr32/boot/u-boot/head.o
+head-y                                 += arch/avr32/kernel/head.o
+core-$(CONFIG_PLATFORM_AT32AP)         += arch/avr32/mach-at32ap/
+core-$(CONFIG_BOARD_ATSTK1000)         += arch/avr32/boards/atstk1000/
+core-$(CONFIG_LOADER_U_BOOT)           += arch/avr32/boot/u-boot/
+core-y                                 += arch/avr32/kernel/
+core-y                                 += arch/avr32/mm/
+libs-y                                 += arch/avr32/lib/ #$(LIBGCC)
+
+archincdir-$(CONFIG_PLATFORM_AT32AP)   := arch-at32ap
+
+include/asm-avr32/.arch: $(wildcard include/config/platform/*.h) include/config/auto.conf
+       @echo '  SYMLINK include/asm-avr32/arch -> include/asm-avr32/$(archincdir-y)'
+ifneq ($(KBUILD_SRC),)
+       $(Q)mkdir -p include/asm-avr32
+       $(Q)ln -fsn $(srctree)/include/asm-avr32/$(archincdir-y) include/asm-avr32/arch
+else
+       $(Q)ln -fsn $(archincdir-y) include/asm-avr32/arch
+endif
+       @touch $@
+
+archprepare: include/asm-avr32/.arch
+
+BOOT_TARGETS := vmlinux.elf vmlinux.bin uImage uImage.srec
+
+.PHONY: $(BOOT_TARGETS) install
+
+boot := arch/$(ARCH)/boot/images
+
+             KBUILD_IMAGE := $(boot)/uImage
+vmlinux.elf: KBUILD_IMAGE := $(boot)/vmlinux.elf
+vmlinux.cso: KBUILD_IMAGE := $(boot)/vmlinux.cso
+uImage.srec: KBUILD_IMAGE := $(boot)/uImage.srec
+uImage:      KBUILD_IMAGE := $(boot)/uImage
+
+quiet_cmd_listing = LST     $@
+      cmd_listing = avr32-linux-objdump $(OBJDUMPFLAGS) -lS $< > $@
+quiet_cmd_disasm  = DIS     $@
+      cmd_disasm  = avr32-linux-objdump $(OBJDUMPFLAGS) -d $< > $@
+
+vmlinux.elf vmlinux.bin uImage.srec uImage vmlinux.cso: vmlinux
+       $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
+
+install: vmlinux
+       $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) $@
+
+linux.s: vmlinux
+       $(call if_changed,disasm)
+
+linux.lst: vmlinux
+       $(call if_changed,listing)
+
+define archhelp
+  @echo '* vmlinux.elf         - ELF image with load address 0'
+  @echo '  vmlinux.cso         - PathFinder CSO image'
+  @echo '  uImage              - Create a bootable image for U-Boot'
+endef
diff --git a/arch/avr32/boards/atstk1000/Makefile b/arch/avr32/boards/atstk1000/Makefile
new file mode 100644 (file)
index 0000000..c3e36ec
--- /dev/null
@@ -0,0 +1,2 @@
+obj-y                          += setup.o spi.o
+obj-$(CONFIG_BOARD_ATSTK1002)  += atstk1002.o
diff --git a/arch/avr32/boards/atstk1000/atstk1002.c b/arch/avr32/boards/atstk1000/atstk1002.c
new file mode 100644 (file)
index 0000000..49164e9
--- /dev/null
@@ -0,0 +1,37 @@
+/*
+ * ATSTK1002 daughterboard-specific init code
+ *
+ * Copyright (C) 2005-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/init.h>
+
+#include <asm/arch/board.h>
+
+struct eth_platform_data __initdata eth0_data = {
+       .valid          = 1,
+       .mii_phy_addr   = 0x10,
+       .is_rmii        = 0,
+       .hw_addr        = { 0x6a, 0x87, 0x71, 0x14, 0xcd, 0xcb },
+};
+
+extern struct lcdc_platform_data atstk1000_fb0_data;
+
+static int __init atstk1002_init(void)
+{
+       at32_add_system_devices();
+
+       at32_add_device_usart(1);       /* /dev/ttyS0 */
+       at32_add_device_usart(2);       /* /dev/ttyS1 */
+       at32_add_device_usart(3);       /* /dev/ttyS2 */
+
+       at32_add_device_eth(0, &eth0_data);
+       at32_add_device_spi(0);
+       at32_add_device_lcdc(0, &atstk1000_fb0_data);
+
+       return 0;
+}
+postcore_initcall(atstk1002_init);
diff --git a/arch/avr32/boards/atstk1000/setup.c b/arch/avr32/boards/atstk1000/setup.c
new file mode 100644 (file)
index 0000000..191ab85
--- /dev/null
@@ -0,0 +1,59 @@
+/*
+ * ATSTK1000 board-specific setup code.
+ *
+ * Copyright (C) 2005-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/bootmem.h>
+#include <linux/init.h>
+#include <linux/types.h>
+#include <linux/linkage.h>
+
+#include <asm/setup.h>
+
+#include <asm/arch/board.h>
+
+/* Initialized by bootloader-specific startup code. */
+struct tag *bootloader_tags __initdata;
+
+struct lcdc_platform_data __initdata atstk1000_fb0_data;
+
+asmlinkage void __init board_early_init(void)
+{
+       extern void sdram_init(void);
+
+#ifdef CONFIG_LOADER_STANDALONE
+       sdram_init();
+#endif
+}
+
+void __init board_setup_fbmem(unsigned long fbmem_start,
+                             unsigned long fbmem_size)
+{
+       if (!fbmem_size)
+               return;
+
+       if (!fbmem_start) {
+               void *fbmem;
+
+               fbmem = alloc_bootmem_low_pages(fbmem_size);
+               fbmem_start = __pa(fbmem);
+       } else {
+               pg_data_t *pgdat;
+
+               for_each_online_pgdat(pgdat) {
+                       if (fbmem_start >= pgdat->bdata->node_boot_start
+                           && fbmem_start <= pgdat->bdata->node_low_pfn)
+                               reserve_bootmem_node(pgdat, fbmem_start,
+                                                    fbmem_size);
+               }
+       }
+
+       printk("%luKiB framebuffer memory at address 0x%08lx\n",
+              fbmem_size >> 10, fbmem_start);
+       atstk1000_fb0_data.fbmem_start = fbmem_start;
+       atstk1000_fb0_data.fbmem_size = fbmem_size;
+}
diff --git a/arch/avr32/boards/atstk1000/spi.c b/arch/avr32/boards/atstk1000/spi.c
new file mode 100644 (file)
index 0000000..567726c
--- /dev/null
@@ -0,0 +1,27 @@
+/*
+ * ATSTK1000 SPI devices
+ *
+ * Copyright (C) 2005 Atmel Norway
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/device.h>
+#include <linux/spi/spi.h>
+
+static struct spi_board_info spi_board_info[] __initdata = {
+       {
+               .modalias       = "ltv350qv",
+               .max_speed_hz   = 16000000,
+               .bus_num        = 0,
+               .chip_select    = 1,
+       },
+};
+
+static int board_init_spi(void)
+{
+       spi_register_board_info(spi_board_info, ARRAY_SIZE(spi_board_info));
+       return 0;
+}
+arch_initcall(board_init_spi);
diff --git a/arch/avr32/boot/images/Makefile b/arch/avr32/boot/images/Makefile
new file mode 100644 (file)
index 0000000..ccd74ee
--- /dev/null
@@ -0,0 +1,62 @@
+#
+# Copyright (C) 2004-2006 Atmel Corporation
+#
+# This file is subject to the terms and conditions of the GNU General Public
+# License.  See the file "COPYING" in the main directory of this archive
+# for more details.
+#
+
+MKIMAGE                := $(srctree)/scripts/mkuboot.sh
+
+extra-y                := vmlinux.bin vmlinux.gz
+
+OBJCOPYFLAGS_vmlinux.bin := -O binary
+$(obj)/vmlinux.bin: vmlinux FORCE
+       $(call if_changed,objcopy)
+
+$(obj)/vmlinux.gz: $(obj)/vmlinux.bin FORCE
+       $(call if_changed,gzip)
+
+quiet_cmd_uimage = UIMAGE $@
+      cmd_uimage = $(CONFIG_SHELL) $(MKIMAGE) -A avr32 -O linux -T kernel      \
+               -C gzip -a $(CONFIG_LOAD_ADDRESS) -e $(CONFIG_ENTRY_ADDRESS)    \
+               -n 'Linux-$(KERNELRELEASE)' -d $< $@
+
+targets += uImage uImage.srec
+$(obj)/uImage: $(obj)/vmlinux.gz
+       $(call if_changed,uimage)
+       @echo '  Image $@ is ready'
+
+OBJCOPYFLAGS_uImage.srec := -I binary -O srec
+$(obj)/uImage.srec: $(obj)/uImage
+       $(call if_changed,objcopy)
+
+OBJCOPYFLAGS_vmlinux.elf := --change-section-lma .text-0x80000000 \
+                           --change-section-lma __ex_table-0x80000000 \
+                           --change-section-lma .rodata-0x80000000 \
+                           --change-section-lma .data-0x80000000 \
+                           --change-section-lma .init-0x80000000 \
+                           --change-section-lma .bss-0x80000000 \
+                           --change-section-lma .initrd-0x80000000 \
+                           --change-section-lma __param-0x80000000 \
+                           --change-section-lma __ksymtab-0x80000000 \
+                           --change-section-lma __ksymtab_gpl-0x80000000 \
+                           --change-section-lma __kcrctab-0x80000000 \
+                           --change-section-lma __kcrctab_gpl-0x80000000 \
+                           --change-section-lma __ksymtab_strings-0x80000000 \
+                           --change-section-lma .got-0x80000000 \
+                           --set-start 0xa0000000
+$(obj)/vmlinux.elf: vmlinux FORCE
+       $(call if_changed,objcopy)
+
+quiet_cmd_sfdwarf = SFDWARF $@
+      cmd_sfdwarf = sfdwarf $< TO $@ GNUAVR IW $(SFDWARF_FLAGS) > $(obj)/sfdwarf.log
+
+$(obj)/vmlinux.cso: $(obj)/vmlinux.elf FORCE
+       $(call if_changed,sfdwarf)
+
+install: $(BOOTIMAGE)
+       sh $(srctree)/install-kernel.sh $<
+
+# Generated files to be removed upon make clean
+clean-files    := vmlinux* uImage uImage.srec
diff --git a/arch/avr32/boot/u-boot/Makefile b/arch/avr32/boot/u-boot/Makefile
new file mode 100644 (file)
index 0000000..125ddc9
--- /dev/null
@@ -0,0 +1,3 @@
+extra-y                := head.o
+
+obj-y          := empty.o
diff --git a/arch/avr32/boot/u-boot/empty.S b/arch/avr32/boot/u-boot/empty.S
new file mode 100644 (file)
index 0000000..8ac91a5
--- /dev/null
@@ -0,0 +1 @@
+/* Empty file */
diff --git a/arch/avr32/boot/u-boot/head.S b/arch/avr32/boot/u-boot/head.S
new file mode 100644 (file)
index 0000000..4488fa2
--- /dev/null
@@ -0,0 +1,60 @@
+/*
+ * Startup code for use with the u-boot bootloader.
+ *
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <asm/setup.h>
+
+       /*
+        * The kernel is loaded where we want it to be and all caches
+        * have just been flushed. We get two parameters from u-boot:
+        *
+        * r12 contains a magic number (ATAG_MAGIC)
+        * r11 points to a tag table providing information about
+        *     the system.
+        */
+       .section .init.text,"ax"
+       .global _start
+_start:
+       /* Check if the boot loader actually provided a tag table */
+       lddpc   r0, magic_number
+       cp.w    r12, r0
+       brne    no_tag_table
+
+       /* Initialize .bss */
+       lddpc   r2, bss_start_addr
+       lddpc   r3, end_addr
+       mov     r0, 0
+       mov     r1, 0
+1:      st.d    r2++, r0
+       cp      r2, r3
+       brlo    1b
+
+       /*
+        * Save the tag table address for later use. This must be done
+        * _after_ .bss has been initialized...
+        */
+       lddpc   r0, tag_table_addr
+       st.w    r0[0], r11
+
+       /* Jump to loader-independent setup code */
+       rjmp    kernel_entry
+
+       .align  2
+magic_number:
+       .long   ATAG_MAGIC
+tag_table_addr:
+       .long   bootloader_tags
+bss_start_addr:
+       .long   __bss_start
+end_addr:
+       .long   _end
+
+no_tag_table:
+       sub     r12, pc, (. - 2f)
+       bral    panic
+2:     .asciz  "Boot loader didn't provide correct magic number\n"
diff --git a/arch/avr32/configs/atstk1002_defconfig b/arch/avr32/configs/atstk1002_defconfig
new file mode 100644 (file)
index 0000000..1d22255
--- /dev/null
@@ -0,0 +1,754 @@
+#
+# Automatically generated make config: don't edit
+# Linux kernel version: 2.6.18-rc1
+# Tue Jul 11 12:41:36 2006
+#
+CONFIG_AVR32=y
+CONFIG_GENERIC_HARDIRQS=y
+CONFIG_HARDIRQS_SW_RESEND=y
+CONFIG_GENERIC_IRQ_PROBE=y
+CONFIG_RWSEM_GENERIC_SPINLOCK=y
+CONFIG_GENERIC_HWEIGHT=y
+CONFIG_GENERIC_CALIBRATE_DELAY=y
+CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
+
+#
+# Code maturity level options
+#
+CONFIG_EXPERIMENTAL=y
+CONFIG_BROKEN_ON_SMP=y
+CONFIG_INIT_ENV_ARG_LIMIT=32
+
+#
+# General setup
+#
+CONFIG_LOCALVERSION=""
+# CONFIG_LOCALVERSION_AUTO is not set
+CONFIG_SWAP=y
+# CONFIG_SYSVIPC is not set
+# CONFIG_POSIX_MQUEUE is not set
+# CONFIG_BSD_PROCESS_ACCT is not set
+CONFIG_SYSCTL=y
+# CONFIG_AUDIT is not set
+# CONFIG_IKCONFIG is not set
+# CONFIG_RELAY is not set
+CONFIG_INITRAMFS_SOURCE=""
+CONFIG_CC_OPTIMIZE_FOR_SIZE=y
+CONFIG_EMBEDDED=y
+CONFIG_KALLSYMS=y
+# CONFIG_KALLSYMS_ALL is not set
+# CONFIG_KALLSYMS_EXTRA_PASS is not set
+CONFIG_HOTPLUG=y
+CONFIG_PRINTK=y
+CONFIG_BUG=y
+CONFIG_ELF_CORE=y
+# CONFIG_BASE_FULL is not set
+# CONFIG_FUTEX is not set
+# CONFIG_EPOLL is not set
+CONFIG_SHMEM=y
+# CONFIG_SLAB is not set
+# CONFIG_VM_EVENT_COUNTERS is not set
+# CONFIG_TINY_SHMEM is not set
+CONFIG_BASE_SMALL=1
+CONFIG_SLOB=y
+
+#
+# Loadable module support
+#
+CONFIG_MODULES=y
+CONFIG_MODULE_UNLOAD=y
+# CONFIG_MODULE_FORCE_UNLOAD is not set
+# CONFIG_MODVERSIONS is not set
+# CONFIG_MODULE_SRCVERSION_ALL is not set
+# CONFIG_KMOD is not set
+
+#
+# Block layer
+#
+# CONFIG_BLK_DEV_IO_TRACE is not set
+
+#
+# IO Schedulers
+#
+CONFIG_IOSCHED_NOOP=y
+# CONFIG_IOSCHED_AS is not set
+# CONFIG_IOSCHED_DEADLINE is not set
+# CONFIG_IOSCHED_CFQ is not set
+# CONFIG_DEFAULT_AS is not set
+# CONFIG_DEFAULT_DEADLINE is not set
+# CONFIG_DEFAULT_CFQ is not set
+CONFIG_DEFAULT_NOOP=y
+CONFIG_DEFAULT_IOSCHED="noop"
+
+#
+# System Type and features
+#
+CONFIG_SUBARCH_AVR32B=y
+CONFIG_MMU=y
+CONFIG_PERFORMANCE_COUNTERS=y
+CONFIG_PLATFORM_AT32AP=y
+CONFIG_CPU_AT32AP7000=y
+CONFIG_BOARD_ATSTK1002=y
+CONFIG_BOARD_ATSTK1000=y
+CONFIG_LOADER_U_BOOT=y
+CONFIG_LOAD_ADDRESS=0x10000000
+CONFIG_ENTRY_ADDRESS=0x90000000
+CONFIG_PHYS_OFFSET=0x10000000
+CONFIG_PREEMPT_NONE=y
+# CONFIG_PREEMPT_VOLUNTARY is not set
+# CONFIG_PREEMPT is not set
+# CONFIG_HAVE_ARCH_BOOTMEM_NODE is not set
+# CONFIG_ARCH_HAVE_MEMORY_PRESENT is not set
+# CONFIG_NEED_NODE_MEMMAP_SIZE is not set
+CONFIG_ARCH_FLATMEM_ENABLE=y
+# CONFIG_ARCH_DISCONTIGMEM_ENABLE is not set
+# CONFIG_ARCH_SPARSEMEM_ENABLE is not set
+CONFIG_SELECT_MEMORY_MODEL=y
+CONFIG_FLATMEM_MANUAL=y
+# CONFIG_DISCONTIGMEM_MANUAL is not set
+# CONFIG_SPARSEMEM_MANUAL is not set
+CONFIG_FLATMEM=y
+CONFIG_FLAT_NODE_MEM_MAP=y
+# CONFIG_SPARSEMEM_STATIC is not set
+CONFIG_SPLIT_PTLOCK_CPUS=4
+# CONFIG_RESOURCES_64BIT is not set
+# CONFIG_OWNERSHIP_TRACE is not set
+# CONFIG_HZ_100 is not set
+CONFIG_HZ_250=y
+# CONFIG_HZ_1000 is not set
+CONFIG_HZ=250
+CONFIG_CMDLINE=""
+
+#
+# Bus options
+#
+
+#
+# PCCARD (PCMCIA/CardBus) support
+#
+# CONFIG_PCCARD is not set
+
+#
+# Executable file formats
+#
+CONFIG_BINFMT_ELF=y
+# CONFIG_BINFMT_MISC is not set
+
+#
+# Networking
+#
+CONFIG_NET=y
+
+#
+# Networking options
+#
+# CONFIG_NETDEBUG is not set
+CONFIG_PACKET=y
+CONFIG_PACKET_MMAP=y
+CONFIG_UNIX=y
+# CONFIG_NET_KEY is not set
+CONFIG_INET=y
+# CONFIG_IP_MULTICAST is not set
+# CONFIG_IP_ADVANCED_ROUTER is not set
+CONFIG_IP_FIB_HASH=y
+CONFIG_IP_PNP=y
+CONFIG_IP_PNP_DHCP=y
+# CONFIG_IP_PNP_BOOTP is not set
+# CONFIG_IP_PNP_RARP is not set
+# CONFIG_NET_IPIP is not set
+# CONFIG_NET_IPGRE is not set
+# CONFIG_ARPD is not set
+# CONFIG_SYN_COOKIES is not set
+# CONFIG_INET_AH is not set
+# CONFIG_INET_ESP is not set
+# CONFIG_INET_IPCOMP is not set
+# CONFIG_INET_XFRM_TUNNEL is not set
+# CONFIG_INET_TUNNEL is not set
+# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
+# CONFIG_INET_XFRM_MODE_TUNNEL is not set
+CONFIG_INET_DIAG=y
+CONFIG_INET_TCP_DIAG=y
+# CONFIG_TCP_CONG_ADVANCED is not set
+CONFIG_TCP_CONG_BIC=y
+# CONFIG_IPV6 is not set
+# CONFIG_INET6_XFRM_TUNNEL is not set
+# CONFIG_INET6_TUNNEL is not set
+# CONFIG_NETWORK_SECMARK is not set
+# CONFIG_NETFILTER is not set
+
+#
+# DCCP Configuration (EXPERIMENTAL)
+#
+# CONFIG_IP_DCCP is not set
+
+#
+# SCTP Configuration (EXPERIMENTAL)
+#
+# CONFIG_IP_SCTP is not set
+
+#
+# TIPC Configuration (EXPERIMENTAL)
+#
+# CONFIG_TIPC is not set
+# CONFIG_ATM is not set
+# CONFIG_BRIDGE is not set
+# CONFIG_VLAN_8021Q is not set
+# CONFIG_DECNET is not set
+# CONFIG_LLC2 is not set
+# CONFIG_IPX is not set
+# CONFIG_ATALK is not set
+# CONFIG_X25 is not set
+# CONFIG_LAPB is not set
+# CONFIG_NET_DIVERT is not set
+# CONFIG_ECONET is not set
+# CONFIG_WAN_ROUTER is not set
+
+#
+# QoS and/or fair queueing
+#
+# CONFIG_NET_SCHED is not set
+
+#
+# Network testing
+#
+# CONFIG_NET_PKTGEN is not set
+# CONFIG_NET_TCPPROBE is not set
+# CONFIG_HAMRADIO is not set
+# CONFIG_IRDA is not set
+# CONFIG_BT is not set
+# CONFIG_IEEE80211 is not set
+
+#
+# Device Drivers
+#
+
+#
+# Generic Driver Options
+#
+CONFIG_STANDALONE=y
+# CONFIG_PREVENT_FIRMWARE_BUILD is not set
+# CONFIG_FW_LOADER is not set
+# CONFIG_DEBUG_DRIVER is not set
+# CONFIG_SYS_HYPERVISOR is not set
+
+#
+# Connector - unified userspace <-> kernelspace linker
+#
+# CONFIG_CONNECTOR is not set
+
+#
+# Memory Technology Devices (MTD)
+#
+# CONFIG_MTD is not set
+
+#
+# Parallel port support
+#
+# CONFIG_PARPORT is not set
+
+#
+# Plug and Play support
+#
+
+#
+# Block devices
+#
+# CONFIG_BLK_DEV_COW_COMMON is not set
+CONFIG_BLK_DEV_LOOP=m
+# CONFIG_BLK_DEV_CRYPTOLOOP is not set
+CONFIG_BLK_DEV_NBD=m
+CONFIG_BLK_DEV_RAM=m
+CONFIG_BLK_DEV_RAM_COUNT=16
+CONFIG_BLK_DEV_RAM_SIZE=4096
+CONFIG_BLK_DEV_INITRD=y
+# CONFIG_CDROM_PKTCDVD is not set
+# CONFIG_ATA_OVER_ETH is not set
+
+#
+# ATA/ATAPI/MFM/RLL support
+#
+# CONFIG_IDE is not set
+
+#
+# SCSI device support
+#
+# CONFIG_RAID_ATTRS is not set
+# CONFIG_SCSI is not set
+
+#
+# Multi-device support (RAID and LVM)
+#
+# CONFIG_MD is not set
+
+#
+# Fusion MPT device support
+#
+# CONFIG_FUSION is not set
+
+#
+# IEEE 1394 (FireWire) support
+#
+
+#
+# I2O device support
+#
+
+#
+# Network device support
+#
+CONFIG_NETDEVICES=y
+CONFIG_DUMMY=y
+# CONFIG_BONDING is not set
+# CONFIG_EQUALIZER is not set
+CONFIG_TUN=m
+
+#
+# PHY device support
+#
+# CONFIG_PHYLIB is not set
+
+#
+# Ethernet (10 or 100Mbit)
+#
+CONFIG_NET_ETHERNET=y
+CONFIG_MII=y
+CONFIG_MACB=y
+
+#
+# Ethernet (1000 Mbit)
+#
+
+#
+# Ethernet (10000 Mbit)
+#
+
+#
+# Token Ring devices
+#
+
+#
+# Wireless LAN (non-hamradio)
+#
+# CONFIG_NET_RADIO is not set
+
+#
+# Wan interfaces
+#
+# CONFIG_WAN is not set
+CONFIG_PPP=m
+# CONFIG_PPP_MULTILINK is not set
+# CONFIG_PPP_FILTER is not set
+CONFIG_PPP_ASYNC=m
+# CONFIG_PPP_SYNC_TTY is not set
+CONFIG_PPP_DEFLATE=m
+# CONFIG_PPP_BSDCOMP is not set
+# CONFIG_PPP_MPPE is not set
+# CONFIG_PPPOE is not set
+# CONFIG_SLIP is not set
+# CONFIG_SHAPER is not set
+# CONFIG_NETCONSOLE is not set
+# CONFIG_NETPOLL is not set
+# CONFIG_NET_POLL_CONTROLLER is not set
+
+#
+# ISDN subsystem
+#
+# CONFIG_ISDN is not set
+
+#
+# Telephony Support
+#
+# CONFIG_PHONE is not set
+
+#
+# Input device support
+#
+# CONFIG_INPUT is not set
+
+#
+# Hardware I/O ports
+#
+# CONFIG_SERIO is not set
+# CONFIG_GAMEPORT is not set
+
+#
+# Character devices
+#
+# CONFIG_VT is not set
+# CONFIG_SERIAL_NONSTANDARD is not set
+
+#
+# Serial drivers
+#
+# CONFIG_SERIAL_8250 is not set
+
+#
+# Non-8250 serial port support
+#
+CONFIG_SERIAL_AT91=y
+CONFIG_SERIAL_AT91_CONSOLE=y
+# CONFIG_SERIAL_AT91_TTYAT is not set
+CONFIG_SERIAL_CORE=y
+CONFIG_SERIAL_CORE_CONSOLE=y
+CONFIG_UNIX98_PTYS=y
+# CONFIG_LEGACY_PTYS is not set
+
+#
+# IPMI
+#
+# CONFIG_IPMI_HANDLER is not set
+
+#
+# Watchdog Cards
+#
+# CONFIG_WATCHDOG is not set
+# CONFIG_HW_RANDOM is not set
+# CONFIG_RTC is not set
+# CONFIG_GEN_RTC is not set
+# CONFIG_DTLK is not set
+# CONFIG_R3964 is not set
+
+#
+# Ftape, the floppy tape device driver
+#
+# CONFIG_RAW_DRIVER is not set
+
+#
+# TPM devices
+#
+# CONFIG_TCG_TPM is not set
+# CONFIG_TELCLOCK is not set
+
+#
+# I2C support
+#
+# CONFIG_I2C is not set
+
+#
+# SPI support
+#
+CONFIG_SPI=y
+# CONFIG_SPI_DEBUG is not set
+CONFIG_SPI_MASTER=y
+
+#
+# SPI Master Controller Drivers
+#
+CONFIG_SPI_ATMEL=m
+# CONFIG_SPI_BITBANG is not set
+
+#
+# SPI Protocol Masters
+#
+
+#
+# Dallas's 1-wire bus
+#
+
+#
+# Hardware Monitoring support
+#
+# CONFIG_HWMON is not set
+# CONFIG_HWMON_VID is not set
+
+#
+# Misc devices
+#
+
+#
+# Multimedia devices
+#
+# CONFIG_VIDEO_DEV is not set
+CONFIG_VIDEO_V4L2=y
+
+#
+# Digital Video Broadcasting Devices
+#
+# CONFIG_DVB is not set
+
+#
+# Graphics support
+#
+# CONFIG_FIRMWARE_EDID is not set
+CONFIG_FB=m
+CONFIG_FB_CFB_FILLRECT=m
+CONFIG_FB_CFB_COPYAREA=m
+CONFIG_FB_CFB_IMAGEBLIT=m
+# CONFIG_FB_MACMODES is not set
+# CONFIG_FB_BACKLIGHT is not set
+# CONFIG_FB_MODE_HELPERS is not set
+# CONFIG_FB_TILEBLITTING is not set
+CONFIG_FB_SIDSA=m
+CONFIG_FB_SIDSA_DEFAULT_BPP=24
+# CONFIG_FB_S1D13XXX is not set
+# CONFIG_FB_VIRTUAL is not set
+
+#
+# Logo configuration
+#
+# CONFIG_LOGO is not set
+CONFIG_BACKLIGHT_LCD_SUPPORT=y
+# CONFIG_BACKLIGHT_CLASS_DEVICE is not set
+CONFIG_LCD_CLASS_DEVICE=m
+CONFIG_LCD_DEVICE=y
+CONFIG_LCD_LTV350QV=m
+
+#
+# Sound
+#
+# CONFIG_SOUND is not set
+
+#
+# USB support
+#
+# CONFIG_USB_ARCH_HAS_HCD is not set
+# CONFIG_USB_ARCH_HAS_OHCI is not set
+# CONFIG_USB_ARCH_HAS_EHCI is not set
+
+#
+# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support'
+#
+
+#
+# USB Gadget Support
+#
+# CONFIG_USB_GADGET is not set
+
+#
+# MMC/SD Card support
+#
+# CONFIG_MMC is not set
+
+#
+# LED devices
+#
+# CONFIG_NEW_LEDS is not set
+
+#
+# LED drivers
+#
+
+#
+# LED Triggers
+#
+
+#
+# InfiniBand support
+#
+
+#
+# EDAC - error detection and reporting (RAS) (EXPERIMENTAL)
+#
+
+#
+# Real Time Clock
+#
+# CONFIG_RTC_CLASS is not set
+
+#
+# DMA Engine support
+#
+# CONFIG_DMA_ENGINE is not set
+
+#
+# DMA Clients
+#
+
+#
+# DMA Devices
+#
+
+#
+# File systems
+#
+CONFIG_EXT2_FS=y
+# CONFIG_EXT2_FS_XATTR is not set
+# CONFIG_EXT2_FS_XIP is not set
+# CONFIG_EXT3_FS is not set
+# CONFIG_REISERFS_FS is not set
+# CONFIG_JFS_FS is not set
+# CONFIG_FS_POSIX_ACL is not set
+# CONFIG_XFS_FS is not set
+# CONFIG_OCFS2_FS is not set
+CONFIG_MINIX_FS=m
+CONFIG_ROMFS_FS=m
+# CONFIG_INOTIFY is not set
+# CONFIG_QUOTA is not set
+# CONFIG_DNOTIFY is not set
+# CONFIG_AUTOFS_FS is not set
+# CONFIG_AUTOFS4_FS is not set
+# CONFIG_FUSE_FS is not set
+
+#
+# CD-ROM/DVD Filesystems
+#
+# CONFIG_ISO9660_FS is not set
+# CONFIG_UDF_FS is not set
+
+#
+# DOS/FAT/NT Filesystems
+#
+CONFIG_FAT_FS=m
+CONFIG_MSDOS_FS=m
+CONFIG_VFAT_FS=m
+CONFIG_FAT_DEFAULT_CODEPAGE=437
+CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
+# CONFIG_NTFS_FS is not set
+
+#
+# Pseudo filesystems
+#
+CONFIG_PROC_FS=y
+CONFIG_PROC_KCORE=y
+CONFIG_SYSFS=y
+CONFIG_TMPFS=y
+# CONFIG_HUGETLB_PAGE is not set
+CONFIG_RAMFS=y
+CONFIG_CONFIGFS_FS=m
+
+#
+# Miscellaneous filesystems
+#
+# CONFIG_ADFS_FS is not set
+# CONFIG_AFFS_FS is not set
+# CONFIG_HFS_FS is not set
+# CONFIG_HFSPLUS_FS is not set
+# CONFIG_BEFS_FS is not set
+# CONFIG_BFS_FS is not set
+# CONFIG_EFS_FS is not set
+# CONFIG_CRAMFS is not set
+# CONFIG_VXFS_FS is not set
+# CONFIG_HPFS_FS is not set
+# CONFIG_QNX4FS_FS is not set
+# CONFIG_SYSV_FS is not set
+# CONFIG_UFS_FS is not set
+
+#
+# Network File Systems
+#
+CONFIG_NFS_FS=y
+CONFIG_NFS_V3=y
+# CONFIG_NFS_V3_ACL is not set
+# CONFIG_NFS_V4 is not set
+# CONFIG_NFS_DIRECTIO is not set
+# CONFIG_NFSD is not set
+CONFIG_ROOT_NFS=y
+CONFIG_LOCKD=y
+CONFIG_LOCKD_V4=y
+CONFIG_NFS_COMMON=y
+CONFIG_SUNRPC=y
+# CONFIG_RPCSEC_GSS_KRB5 is not set
+# CONFIG_RPCSEC_GSS_SPKM3 is not set
+# CONFIG_SMB_FS is not set
+CONFIG_CIFS=m
+# CONFIG_CIFS_STATS is not set
+# CONFIG_CIFS_WEAK_PW_HASH is not set
+# CONFIG_CIFS_XATTR is not set
+# CONFIG_CIFS_DEBUG2 is not set
+# CONFIG_CIFS_EXPERIMENTAL is not set
+# CONFIG_NCP_FS is not set
+# CONFIG_CODA_FS is not set
+# CONFIG_AFS_FS is not set
+# CONFIG_9P_FS is not set
+
+#
+# Partition Types
+#
+# CONFIG_PARTITION_ADVANCED is not set
+CONFIG_MSDOS_PARTITION=y
+
+#
+# Native Language Support
+#
+CONFIG_NLS=m
+CONFIG_NLS_DEFAULT="iso8859-1"
+CONFIG_NLS_CODEPAGE_437=m
+# CONFIG_NLS_CODEPAGE_737 is not set
+# CONFIG_NLS_CODEPAGE_775 is not set
+CONFIG_NLS_CODEPAGE_850=m
+# CONFIG_NLS_CODEPAGE_852 is not set
+# CONFIG_NLS_CODEPAGE_855 is not set
+# CONFIG_NLS_CODEPAGE_857 is not set
+# CONFIG_NLS_CODEPAGE_860 is not set
+# CONFIG_NLS_CODEPAGE_861 is not set
+# CONFIG_NLS_CODEPAGE_862 is not set
+# CONFIG_NLS_CODEPAGE_863 is not set
+# CONFIG_NLS_CODEPAGE_864 is not set
+# CONFIG_NLS_CODEPAGE_865 is not set
+# CONFIG_NLS_CODEPAGE_866 is not set
+# CONFIG_NLS_CODEPAGE_869 is not set
+# CONFIG_NLS_CODEPAGE_936 is not set
+# CONFIG_NLS_CODEPAGE_950 is not set
+# CONFIG_NLS_CODEPAGE_932 is not set
+# CONFIG_NLS_CODEPAGE_949 is not set
+# CONFIG_NLS_CODEPAGE_874 is not set
+# CONFIG_NLS_ISO8859_8 is not set
+# CONFIG_NLS_CODEPAGE_1250 is not set
+# CONFIG_NLS_CODEPAGE_1251 is not set
+# CONFIG_NLS_ASCII is not set
+CONFIG_NLS_ISO8859_1=m
+# CONFIG_NLS_ISO8859_2 is not set
+# CONFIG_NLS_ISO8859_3 is not set
+# CONFIG_NLS_ISO8859_4 is not set
+# CONFIG_NLS_ISO8859_5 is not set
+# CONFIG_NLS_ISO8859_6 is not set
+# CONFIG_NLS_ISO8859_7 is not set
+# CONFIG_NLS_ISO8859_9 is not set
+# CONFIG_NLS_ISO8859_13 is not set
+# CONFIG_NLS_ISO8859_14 is not set
+# CONFIG_NLS_ISO8859_15 is not set
+# CONFIG_NLS_KOI8_R is not set
+# CONFIG_NLS_KOI8_U is not set
+CONFIG_NLS_UTF8=m
+
+#
+# Kernel hacking
+#
+CONFIG_TRACE_IRQFLAGS_SUPPORT=y
+CONFIG_PRINTK_TIME=y
+CONFIG_MAGIC_SYSRQ=y
+# CONFIG_UNUSED_SYMBOLS is not set
+CONFIG_DEBUG_KERNEL=y
+CONFIG_LOG_BUF_SHIFT=14
+CONFIG_DETECT_SOFTLOCKUP=y
+# CONFIG_SCHEDSTATS is not set
+# CONFIG_DEBUG_SPINLOCK is not set
+# CONFIG_DEBUG_MUTEXES is not set
+# CONFIG_DEBUG_RWSEMS is not set
+# CONFIG_DEBUG_SPINLOCK_SLEEP is not set
+# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
+# CONFIG_DEBUG_KOBJECT is not set
+CONFIG_DEBUG_BUGVERBOSE=y
+# CONFIG_DEBUG_INFO is not set
+CONFIG_DEBUG_FS=y
+# CONFIG_DEBUG_VM is not set
+CONFIG_FRAME_POINTER=y
+# CONFIG_UNWIND_INFO is not set
+CONFIG_FORCED_INLINING=y
+# CONFIG_RCU_TORTURE_TEST is not set
+CONFIG_KPROBES=y
+
+#
+# Security options
+#
+# CONFIG_KEYS is not set
+# CONFIG_SECURITY is not set
+
+#
+# Cryptographic options
+#
+# CONFIG_CRYPTO is not set
+
+#
+# Hardware crypto devices
+#
+
+#
+# Library routines
+#
+CONFIG_CRC_CCITT=m
+# CONFIG_CRC16 is not set
+CONFIG_CRC32=m
+# CONFIG_LIBCRC32C is not set
+CONFIG_ZLIB_INFLATE=m
+CONFIG_ZLIB_DEFLATE=m
diff --git a/arch/avr32/kernel/Makefile b/arch/avr32/kernel/Makefile
new file mode 100644 (file)
index 0000000..90e5aff
--- /dev/null
@@ -0,0 +1,18 @@
+#
+# Makefile for the Linux/AVR32 kernel.
+#
+
+extra-y                                := head.o vmlinux.lds
+
+obj-$(CONFIG_SUBARCH_AVR32B)   += entry-avr32b.o
+obj-y                          += syscall_table.o syscall-stubs.o irq.o
+obj-y                          += setup.o traps.o semaphore.o ptrace.o
+obj-y                          += signal.o sys_avr32.o process.o time.o
+obj-y                          += init_task.o switch_to.o cpu.o
+obj-$(CONFIG_MODULES)          += module.o avr32_ksyms.o
+obj-$(CONFIG_KPROBES)          += kprobes.o
+
+USE_STANDARD_AS_RULE           := true
+
+%.lds: %.lds.c FORCE
+       $(call if_changed_dep,cpp_lds_S)
diff --git a/arch/avr32/kernel/asm-offsets.c b/arch/avr32/kernel/asm-offsets.c
new file mode 100644 (file)
index 0000000..97d8658
--- /dev/null
@@ -0,0 +1,25 @@
+/*
+ * Generate definitions needed by assembly language modules.
+ * This code generates raw asm output which is post-processed
+ * to extract and format the required data.
+ */
+
+#include <linux/thread_info.h>
+
+#define DEFINE(sym, val) \
+        asm volatile("\n->" #sym " %0 " #val : : "i" (val))
+
+#define BLANK() asm volatile("\n->" : : )
+
+#define OFFSET(sym, str, mem) \
+        DEFINE(sym, offsetof(struct str, mem));
+
+void foo(void)
+{
+       OFFSET(TI_task, thread_info, task);
+       OFFSET(TI_exec_domain, thread_info, exec_domain);
+       OFFSET(TI_flags, thread_info, flags);
+       OFFSET(TI_cpu, thread_info, cpu);
+       OFFSET(TI_preempt_count, thread_info, preempt_count);
+       OFFSET(TI_restart_block, thread_info, restart_block);
+}
diff --git a/arch/avr32/kernel/avr32_ksyms.c b/arch/avr32/kernel/avr32_ksyms.c
new file mode 100644 (file)
index 0000000..04f767a
--- /dev/null
@@ -0,0 +1,55 @@
+/*
+ * Export AVR32-specific functions for loadable modules.
+ *
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/module.h>
+
+#include <asm/checksum.h>
+#include <asm/uaccess.h>
+#include <asm/delay.h>
+
+/*
+ * GCC functions
+ */
+extern unsigned long long __avr32_lsl64(unsigned long long u, unsigned long b);
+extern unsigned long long __avr32_lsr64(unsigned long long u, unsigned long b);
+extern unsigned long long __avr32_asr64(unsigned long long u, unsigned long b);
+EXPORT_SYMBOL(__avr32_lsl64);
+EXPORT_SYMBOL(__avr32_lsr64);
+EXPORT_SYMBOL(__avr32_asr64);
+
+/*
+ * String functions
+ */
+EXPORT_SYMBOL(memset);
+EXPORT_SYMBOL(memcpy);
+
+/*
+ * Userspace access stuff.
+ */
+EXPORT_SYMBOL(copy_from_user);
+EXPORT_SYMBOL(copy_to_user);
+EXPORT_SYMBOL(__copy_user);
+EXPORT_SYMBOL(strncpy_from_user);
+EXPORT_SYMBOL(__strncpy_from_user);
+EXPORT_SYMBOL(clear_user);
+EXPORT_SYMBOL(__clear_user);
+EXPORT_SYMBOL(csum_partial);
+EXPORT_SYMBOL(csum_partial_copy_generic);
+
+/* Delay loops (lib/delay.S) */
+EXPORT_SYMBOL(__ndelay);
+EXPORT_SYMBOL(__udelay);
+EXPORT_SYMBOL(__const_udelay);
+
+/* Bit operations (lib/findbit.S) */
+EXPORT_SYMBOL(find_first_zero_bit);
+EXPORT_SYMBOL(find_next_zero_bit);
+EXPORT_SYMBOL(find_first_bit);
+EXPORT_SYMBOL(find_next_bit);
+EXPORT_SYMBOL(generic_find_next_zero_le_bit);
diff --git a/arch/avr32/kernel/cpu.c b/arch/avr32/kernel/cpu.c
new file mode 100644 (file)
index 0000000..342452b
--- /dev/null
@@ -0,0 +1,327 @@
+/*
+ * Copyright (C) 2005-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/init.h>
+#include <linux/sysdev.h>
+#include <linux/seq_file.h>
+#include <linux/cpu.h>
+#include <linux/percpu.h>
+#include <linux/param.h>
+#include <linux/errno.h>
+
+#include <asm/setup.h>
+#include <asm/sysreg.h>
+
+static DEFINE_PER_CPU(struct cpu, cpu_devices);
+
+#ifdef CONFIG_PERFORMANCE_COUNTERS
+
+/*
+ * XXX: If/when a SMP-capable implementation of AVR32 will ever be
+ * made, we must make sure that the code executes on the correct CPU.
+ */
+static ssize_t show_pc0event(struct sys_device *dev, char *buf)
+{
+       unsigned long pccr;
+
+       pccr = sysreg_read(PCCR);
+       return sprintf(buf, "0x%lx\n", (pccr >> 12) & 0x3f);
+}
+static ssize_t store_pc0event(struct sys_device *dev, const char *buf,
+                             size_t count)
+{
+       unsigned long val;
+       char *endp;
+
+       val = simple_strtoul(buf, &endp, 0);
+       if (endp == buf || val > 0x3f)
+               return -EINVAL;
+       val = (val << 12) | (sysreg_read(PCCR) & 0xfffc0fff);
+       sysreg_write(PCCR, val);
+       return count;
+}
+static ssize_t show_pc0count(struct sys_device *dev, char *buf)
+{
+       unsigned long pcnt0;
+
+       pcnt0 = sysreg_read(PCNT0);
+       return sprintf(buf, "%lu\n", pcnt0);
+}
+static ssize_t store_pc0count(struct sys_device *dev, const char *buf,
+                             size_t count)
+{
+       unsigned long val;
+       char *endp;
+
+       val = simple_strtoul(buf, &endp, 0);
+       if (endp == buf)
+               return -EINVAL;
+       sysreg_write(PCNT0, val);
+
+       return count;
+}
+
+static ssize_t show_pc1event(struct sys_device *dev, char *buf)
+{
+       unsigned long pccr;
+
+       pccr = sysreg_read(PCCR);
+       return sprintf(buf, "0x%lx\n", (pccr >> 18) & 0x3f);
+}
+static ssize_t store_pc1event(struct sys_device *dev, const char *buf,
+                             size_t count)
+{
+       unsigned long val;
+       char *endp;
+
+       val = simple_strtoul(buf, &endp, 0);
+       if (endp == buf || val > 0x3f)
+               return -EINVAL;
+       val = (val << 18) | (sysreg_read(PCCR) & 0xff03ffff);
+       sysreg_write(PCCR, val);
+       return count;
+}
+static ssize_t show_pc1count(struct sys_device *dev, char *buf)
+{
+       unsigned long pcnt1;
+
+       pcnt1 = sysreg_read(PCNT1);
+       return sprintf(buf, "%lu\n", pcnt1);
+}
+static ssize_t store_pc1count(struct sys_device *dev, const char *buf,
+                             size_t count)
+{
+       unsigned long val;
+       char *endp;
+
+       val = simple_strtoul(buf, &endp, 0);
+       if (endp == buf)
+               return -EINVAL;
+       sysreg_write(PCNT1, val);
+
+       return count;
+}
+
+static ssize_t show_pccycles(struct sys_device *dev, char *buf)
+{
+       unsigned long pccnt;
+
+       pccnt = sysreg_read(PCCNT);
+       return sprintf(buf, "%lu\n", pccnt);
+}
+static ssize_t store_pccycles(struct sys_device *dev, const char *buf,
+                             size_t count)
+{
+       unsigned long val;
+       char *endp;
+
+       val = simple_strtoul(buf, &endp, 0);
+       if (endp == buf)
+               return -EINVAL;
+       sysreg_write(PCCNT, val);
+
+       return count;
+}
+
+static ssize_t show_pcenable(struct sys_device *dev, char *buf)
+{
+       unsigned long pccr;
+
+       pccr = sysreg_read(PCCR);
+       return sprintf(buf, "%c\n", (pccr & 1)?'1':'0');
+}
+static ssize_t store_pcenable(struct sys_device *dev, const char *buf,
+                             size_t count)
+{
+       unsigned long pccr, val;
+       char *endp;
+
+       val = simple_strtoul(buf, &endp, 0);
+       if (endp == buf)
+               return -EINVAL;
+       if (val)
+               val = 1;
+
+       pccr = sysreg_read(PCCR);
+       pccr = (pccr & ~1UL) | val;
+       sysreg_write(PCCR, pccr);
+
+       return count;
+}
+
+static SYSDEV_ATTR(pc0event, 0600, show_pc0event, store_pc0event);
+static SYSDEV_ATTR(pc0count, 0600, show_pc0count, store_pc0count);
+static SYSDEV_ATTR(pc1event, 0600, show_pc1event, store_pc1event);
+static SYSDEV_ATTR(pc1count, 0600, show_pc1count, store_pc1count);
+static SYSDEV_ATTR(pccycles, 0600, show_pccycles, store_pccycles);
+static SYSDEV_ATTR(pcenable, 0600, show_pcenable, store_pcenable);
+
+#endif /* CONFIG_PERFORMANCE_COUNTERS */
+
+static int __init topology_init(void)
+{
+       int cpu;
+
+       for_each_possible_cpu(cpu) {
+               struct cpu *c = &per_cpu(cpu_devices, cpu);
+
+               register_cpu(c, cpu);
+
+#ifdef CONFIG_PERFORMANCE_COUNTERS
+               sysdev_create_file(&c->sysdev, &attr_pc0event);
+               sysdev_create_file(&c->sysdev, &attr_pc0count);
+               sysdev_create_file(&c->sysdev, &attr_pc1event);
+               sysdev_create_file(&c->sysdev, &attr_pc1count);
+               sysdev_create_file(&c->sysdev, &attr_pccycles);
+               sysdev_create_file(&c->sysdev, &attr_pcenable);
+#endif
+       }
+
+       return 0;
+}
+
+subsys_initcall(topology_init);
+
+static const char *cpu_names[] = {
+       "Morgan",
+       "AP7000",
+};
+#define NR_CPU_NAMES ARRAY_SIZE(cpu_names)
+
+static const char *arch_names[] = {
+       "AVR32A",
+       "AVR32B",
+};
+#define NR_ARCH_NAMES ARRAY_SIZE(arch_names)
+
+static const char *mmu_types[] = {
+       "No MMU",
+       "ITLB and DTLB",
+       "Shared TLB",
+       "MPU"
+};
+
+void __init setup_processor(void)
+{
+       unsigned long config0, config1;
+       unsigned cpu_id, cpu_rev, arch_id, arch_rev, mmu_type;
+       unsigned tmp;
+
+       config0 = sysreg_read(CONFIG0); /* 0x0000013e; */
+       config1 = sysreg_read(CONFIG1); /* 0x01f689a2; */
+       cpu_id = config0 >> 24;
+       cpu_rev = (config0 >> 16) & 0xff;
+       arch_id = (config0 >> 13) & 0x07;
+       arch_rev = (config0 >> 10) & 0x07;
+       mmu_type = (config0 >> 7) & 0x03;
+
+       boot_cpu_data.arch_type = arch_id;
+       boot_cpu_data.cpu_type = cpu_id;
+       boot_cpu_data.arch_revision = arch_rev;
+       boot_cpu_data.cpu_revision = cpu_rev;
+       boot_cpu_data.tlb_config = mmu_type;
+
+       tmp = (config1 >> 13) & 0x07;
+       if (tmp) {
+               boot_cpu_data.icache.ways = 1 << ((config1 >> 10) & 0x07);
+               boot_cpu_data.icache.sets = 1 << ((config1 >> 16) & 0x0f);
+               boot_cpu_data.icache.linesz = 1 << (tmp + 1);
+       }
+       tmp = (config1 >> 3) & 0x07;
+       if (tmp) {
+               boot_cpu_data.dcache.ways = 1 << (config1 & 0x07);
+               boot_cpu_data.dcache.sets = 1 << ((config1 >> 6) & 0x0f);
+               boot_cpu_data.dcache.linesz = 1 << (tmp + 1);
+       }
+
+       if ((cpu_id >= NR_CPU_NAMES) || (arch_id >= NR_ARCH_NAMES)) {
+               printk ("Unknown CPU configuration (ID %02x, arch %02x), "
+                       "continuing anyway...\n",
+                       cpu_id, arch_id);
+               return;
+       }
+
+       printk ("CPU: %s [%02x] revision %d (%s revision %d)\n",
+               cpu_names[cpu_id], cpu_id, cpu_rev,
+               arch_names[arch_id], arch_rev);
+       printk ("CPU: MMU configuration: %s\n", mmu_types[mmu_type]);
+       printk ("CPU: features:");
+       if (config0 & (1 << 6))
+               printk(" fpu");
+       if (config0 & (1 << 5))
+               printk(" java");
+       if (config0 & (1 << 4))
+               printk(" perfctr");
+       if (config0 & (1 << 3))
+               printk(" ocd");
+       printk("\n");
+}
+
+#ifdef CONFIG_PROC_FS
+static int c_show(struct seq_file *m, void *v)
+{
+       unsigned int icache_size, dcache_size;
+       unsigned int cpu = smp_processor_id();
+
+       icache_size = boot_cpu_data.icache.ways *
+               boot_cpu_data.icache.sets *
+               boot_cpu_data.icache.linesz;
+       dcache_size = boot_cpu_data.dcache.ways *
+               boot_cpu_data.dcache.sets *
+               boot_cpu_data.dcache.linesz;
+
+       seq_printf(m, "processor\t: %d\n", cpu);
+
+       if (boot_cpu_data.arch_type < NR_ARCH_NAMES)
+               seq_printf(m, "cpu family\t: %s revision %d\n",
+                          arch_names[boot_cpu_data.arch_type],
+                          boot_cpu_data.arch_revision);
+       if (boot_cpu_data.cpu_type < NR_CPU_NAMES)
+               seq_printf(m, "cpu type\t: %s revision %d\n",
+                          cpu_names[boot_cpu_data.cpu_type],
+                          boot_cpu_data.cpu_revision);
+
+       seq_printf(m, "i-cache\t\t: %dK (%u ways x %u sets x %u)\n",
+                  icache_size >> 10,
+                  boot_cpu_data.icache.ways,
+                  boot_cpu_data.icache.sets,
+                  boot_cpu_data.icache.linesz);
+       seq_printf(m, "d-cache\t\t: %dK (%u ways x %u sets x %u)\n",
+                  dcache_size >> 10,
+                  boot_cpu_data.dcache.ways,
+                  boot_cpu_data.dcache.sets,
+                  boot_cpu_data.dcache.linesz);
+       seq_printf(m, "bogomips\t: %lu.%02lu\n",
+                  boot_cpu_data.loops_per_jiffy / (500000/HZ),
+                  (boot_cpu_data.loops_per_jiffy / (5000/HZ)) % 100);
+
+       return 0;
+}
+
+static void *c_start(struct seq_file *m, loff_t *pos)
+{
+       return *pos < 1 ? (void *)1 : NULL;
+}
+
+static void *c_next(struct seq_file *m, void *v, loff_t *pos)
+{
+       ++*pos;
+       return NULL;
+}
+
+static void c_stop(struct seq_file *m, void *v)
+{
+
+}
+
+struct seq_operations cpuinfo_op = {
+       .start  = c_start,
+       .next   = c_next,
+       .stop   = c_stop,
+       .show   = c_show
+};
+#endif /* CONFIG_PROC_FS */
diff --git a/arch/avr32/kernel/entry-avr32b.S b/arch/avr32/kernel/entry-avr32b.S
new file mode 100644 (file)
index 0000000..eeb6679
--- /dev/null
@@ -0,0 +1,678 @@
+/*
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+/*
+ * This file contains the low-level entry-points into the kernel, that is,
+ * exception handlers, debug trap handlers, interrupt handlers and the
+ * system call handler.
+ */
+#include <linux/errno.h>
+
+#include <asm/asm.h>
+#include <asm/hardirq.h>
+#include <asm/irq.h>
+#include <asm/ocd.h>
+#include <asm/page.h>
+#include <asm/pgtable.h>
+#include <asm/ptrace.h>
+#include <asm/sysreg.h>
+#include <asm/thread_info.h>
+#include <asm/unistd.h>
+
+#ifdef CONFIG_PREEMPT
+# define preempt_stop          mask_interrupts
+#else
+# define preempt_stop
+# define fault_resume_kernel   fault_restore_all
+#endif
+
+#define __MASK(x)      ((1 << (x)) - 1)
+#define IRQ_MASK       ((__MASK(SOFTIRQ_BITS) << SOFTIRQ_SHIFT) | \
+                        (__MASK(HARDIRQ_BITS) << HARDIRQ_SHIFT))
+
+       .section .ex.text,"ax",@progbits
+       .align  2
+exception_vectors:
+       bral    handle_critical
+       .align  2
+       bral    handle_critical
+       .align  2
+       bral    do_bus_error_write
+       .align  2
+       bral    do_bus_error_read
+       .align  2
+       bral    do_nmi_ll
+       .align  2
+       bral    handle_address_fault
+       .align  2
+       bral    handle_protection_fault
+       .align  2
+       bral    handle_debug
+       .align  2
+       bral    do_illegal_opcode_ll
+       .align  2
+       bral    do_illegal_opcode_ll
+       .align  2
+       bral    do_illegal_opcode_ll
+       .align  2
+       bral    do_fpe_ll
+       .align  2
+       bral    do_illegal_opcode_ll
+       .align  2
+       bral    handle_address_fault
+       .align  2
+       bral    handle_address_fault
+       .align  2
+       bral    handle_protection_fault
+       .align  2
+       bral    handle_protection_fault
+       .align  2
+       bral    do_dtlb_modified
+
+       /*
+        * r0 : PGD/PT/PTE
+        * r1 : Offending address
+        * r2 : Scratch register
+        * r3 : Cause (5, 12 or 13)
+        */
+#define        tlbmiss_save    pushm   r0-r3
+#define tlbmiss_restore        popm    r0-r3
+
+       .section .tlbx.ex.text,"ax",@progbits
+       .global itlb_miss
+itlb_miss:
+       tlbmiss_save
+       rjmp    tlb_miss_common
+
+       .section .tlbr.ex.text,"ax",@progbits
+dtlb_miss_read:
+       tlbmiss_save
+       rjmp    tlb_miss_common
+
+       .section .tlbw.ex.text,"ax",@progbits
+dtlb_miss_write:
+       tlbmiss_save
+
+       .global tlb_miss_common
+tlb_miss_common:
+       mfsr    r0, SYSREG_PTBR
+       mfsr    r1, SYSREG_TLBEAR
+
+       /* Is it the vmalloc space? */
+       bld     r1, 31
+       brcs    handle_vmalloc_miss
+
+       /* First level lookup */
+pgtbl_lookup:
+       lsr     r2, r1, PGDIR_SHIFT
+       ld.w    r0, r0[r2 << 2]
+       bld     r0, _PAGE_BIT_PRESENT
+       brcc    page_table_not_present
+
+       /* TODO: Check access rights on page table if necessary */
+
+       /* Translate to virtual address in P1. */
+       andl    r0, 0xf000
+       sbr     r0, 31
+
+       /* Second level lookup */
+       lsl     r1, (32 - PGDIR_SHIFT)
+       lsr     r1, (32 - PGDIR_SHIFT) + PAGE_SHIFT
+       add     r2, r0, r1 << 2
+       ld.w    r1, r2[0]
+       bld     r1, _PAGE_BIT_PRESENT
+       brcc    page_not_present
+
+       /* Mark the page as accessed */
+       sbr     r1, _PAGE_BIT_ACCESSED
+       st.w    r2[0], r1
+
+       /* Drop software flags */
+       andl    r1, _PAGE_FLAGS_HARDWARE_MASK & 0xffff
+       mtsr    SYSREG_TLBELO, r1
+
+       /* Figure out which entry we want to replace */
+       mfsr    r0, SYSREG_TLBARLO
+       clz     r2, r0
+       brcc    1f
+       mov     r1, -1                  /* All entries have been accessed, */
+       mtsr    SYSREG_TLBARLO, r1      /* so reset TLBAR */
+       mov     r2, 0                   /* and start at 0 */
+1:     mfsr    r1, SYSREG_MMUCR
+       lsl     r2, 14
+       andl    r1, 0x3fff, COH
+       or      r1, r2
+       mtsr    SYSREG_MMUCR, r1
+
+       tlbw
+
+       tlbmiss_restore
+       rete
+
+handle_vmalloc_miss:
+       /* Simply do the lookup in init's page table */
+       mov     r0, lo(swapper_pg_dir)
+       orh     r0, hi(swapper_pg_dir)
+       rjmp    pgtbl_lookup
+
+
+       /* ---                    System Call                    --- */
+
+       .section .scall.text,"ax",@progbits
+system_call:
+       pushm   r12             /* r12_orig */
+       stmts   --sp, r0-lr
+       zero_fp
+       mfsr    r0, SYSREG_RAR_SUP
+       mfsr    r1, SYSREG_RSR_SUP
+       stm     --sp, r0-r1
+
+       /* check for syscall tracing */
+       get_thread_info r0
+       ld.w    r1, r0[TI_flags]
+       bld     r1, TIF_SYSCALL_TRACE
+       brcs    syscall_trace_enter
+
+syscall_trace_cont:
+       cp.w    r8, NR_syscalls
+       brhs    syscall_badsys
+
+       lddpc   lr, syscall_table_addr
+       ld.w    lr, lr[r8 << 2]
+       mov     r8, r5          /* 5th argument (6th is pushed by stub) */
+       icall   lr
+
+       .global syscall_return
+syscall_return:
+       get_thread_info r0
+       mask_interrupts         /* make sure we don't miss an interrupt
+                                  setting need_resched or sigpending
+                                  between sampling and the rets */
+
+       /* Store the return value so that the correct value is loaded below */
+       stdsp   sp[REG_R12], r12
+
+       ld.w    r1, r0[TI_flags]
+       andl    r1, _TIF_ALLWORK_MASK, COH
+       brne    syscall_exit_work
+
+syscall_exit_cont:
+       popm    r8-r9
+       mtsr    SYSREG_RAR_SUP, r8
+       mtsr    SYSREG_RSR_SUP, r9
+       ldmts   sp++, r0-lr
+       sub     sp, -4          /* r12_orig */
+       rets
+
+       .align  2
+syscall_table_addr:
+       .long   sys_call_table
+
+syscall_badsys:
+       mov     r12, -ENOSYS
+       rjmp    syscall_return
+
+       .global ret_from_fork
+ret_from_fork:
+       rcall   schedule_tail
+
+       /* check for syscall tracing */
+       get_thread_info r0
+       ld.w    r1, r0[TI_flags]
+       andl    r1, _TIF_ALLWORK_MASK, COH
+       brne    syscall_exit_work
+       rjmp    syscall_exit_cont
+
+syscall_trace_enter:
+       pushm   r8-r12
+       rcall   syscall_trace
+       popm    r8-r12
+       rjmp    syscall_trace_cont
+
+syscall_exit_work:
+       bld     r1, TIF_SYSCALL_TRACE
+       brcc    1f
+       unmask_interrupts
+       rcall   syscall_trace
+       mask_interrupts
+       ld.w    r1, r0[TI_flags]
+
+1:     bld     r1, TIF_NEED_RESCHED
+       brcc    2f
+       unmask_interrupts
+       rcall   schedule
+       mask_interrupts
+       ld.w    r1, r0[TI_flags]
+       rjmp    1b
+
+2:     mov     r2, _TIF_SIGPENDING | _TIF_RESTORE_SIGMASK
+       tst     r1, r2
+       breq    3f
+       unmask_interrupts
+       mov     r12, sp
+       mov     r11, r0
+       rcall   do_notify_resume
+       mask_interrupts
+       ld.w    r1, r0[TI_flags]
+       rjmp    1b
+
+3:     bld     r1, TIF_BREAKPOINT
+       brcc    syscall_exit_cont
+       mfsr    r3, SYSREG_TLBEHI
+       lddsp   r2, sp[REG_PC]
+       andl    r3, 0xff, COH
+       lsl     r3, 1
+       sbr     r3, 30
+       sbr     r3, 0
+       mtdr    DBGREG_BWA2A, r2
+       mtdr    DBGREG_BWC2A, r3
+       rjmp    syscall_exit_cont
+
+
+       /* The slow path of the TLB miss handler */
+page_table_not_present:
+page_not_present:
+       tlbmiss_restore
+       sub     sp, 4
+       stmts   --sp, r0-lr
+       rcall   save_full_context_ex
+       mfsr    r12, SYSREG_ECR
+       mov     r11, sp
+       rcall   do_page_fault
+       rjmp    ret_from_exception
+
+       /* This function expects to find offending PC in SYSREG_RAR_EX */
+save_full_context_ex:
+       mfsr    r8, SYSREG_RSR_EX
+       mov     r12, r8
+       andh    r8, (MODE_MASK >> 16), COH
+       mfsr    r11, SYSREG_RAR_EX
+       brne    2f
+
+1:     pushm   r11, r12        /* PC and SR */
+       unmask_exceptions
+       ret     r12
+
+2:     sub     r10, sp, -(FRAME_SIZE_FULL - REG_LR)
+       stdsp   sp[4], r10      /* replace saved SP */
+       rjmp    1b
+
+       /* Low-level exception handlers */
+handle_critical:
+       pushm   r12
+       pushm   r0-r12
+       rcall   save_full_context_ex
+       mfsr    r12, SYSREG_ECR
+       mov     r11, sp
+       rcall   do_critical_exception
+
+       /* We should never get here... */
+bad_return:
+       sub     r12, pc, (. - 1f)
+       bral    panic
+       .align  2
+1:     .asciz  "Return from critical exception!"
+
+       .align  1
+do_bus_error_write:
+       sub     sp, 4
+       stmts   --sp, r0-lr
+       rcall   save_full_context_ex
+       mov     r11, 1
+       rjmp    1f
+
+do_bus_error_read:
+       sub     sp, 4
+       stmts   --sp, r0-lr
+       rcall   save_full_context_ex
+       mov     r11, 0
+1:     mfsr    r12, SYSREG_BEAR
+       mov     r10, sp
+       rcall   do_bus_error
+       rjmp    ret_from_exception
+
+       .align  1
+do_nmi_ll:
+       sub     sp, 4
+       stmts   --sp, r0-lr
+       /* FIXME: Make sure RAR_NMI and RSR_NMI are pushed instead of *_EX */
+       rcall   save_full_context_ex
+       mfsr    r12, SYSREG_ECR
+       mov     r11, sp
+       rcall   do_nmi
+       rjmp    bad_return
+
+handle_address_fault:
+       sub     sp, 4
+       stmts   --sp, r0-lr
+       rcall   save_full_context_ex
+       mfsr    r12, SYSREG_ECR
+       mov     r11, sp
+       rcall   do_address_exception
+       rjmp    ret_from_exception
+
+handle_protection_fault:
+       sub     sp, 4
+       stmts   --sp, r0-lr
+       rcall   save_full_context_ex
+       mfsr    r12, SYSREG_ECR
+       mov     r11, sp
+       rcall   do_page_fault
+       rjmp    ret_from_exception
+
+       .align  1
+do_illegal_opcode_ll:
+       sub     sp, 4
+       stmts   --sp, r0-lr
+       rcall   save_full_context_ex
+       mfsr    r12, SYSREG_ECR
+       mov     r11, sp
+       rcall   do_illegal_opcode
+       rjmp    ret_from_exception
+
+do_dtlb_modified:
+       pushm   r0-r3
+       mfsr    r1, SYSREG_TLBEAR
+       mfsr    r0, SYSREG_PTBR
+       lsr     r2, r1, PGDIR_SHIFT
+       ld.w    r0, r0[r2 << 2]
+       lsl     r1, (32 - PGDIR_SHIFT)
+       lsr     r1, (32 - PGDIR_SHIFT) + PAGE_SHIFT
+
+       /* Translate to virtual address in P1 */
+       andl    r0, 0xf000
+       sbr     r0, 31
+       add     r2, r0, r1 << 2
+       ld.w    r3, r2[0]
+       sbr     r3, _PAGE_BIT_DIRTY
+       mov     r0, r3
+       st.w    r2[0], r3
+
+       /* The page table is up-to-date. Update the TLB entry as well */
+       andl    r0, lo(_PAGE_FLAGS_HARDWARE_MASK)
+       mtsr    SYSREG_TLBELO, r0
+
+       /* MMUCR[DRP] is updated automatically, so let's go... */
+       tlbw
+
+       popm    r0-r3
+       rete
+
+do_fpe_ll:
+       sub     sp, 4
+       stmts   --sp, r0-lr
+       rcall   save_full_context_ex
+       unmask_interrupts
+       mov     r12, 26
+       mov     r11, sp
+       rcall   do_fpe
+       rjmp    ret_from_exception
+
+ret_from_exception:
+       mask_interrupts
+       lddsp   r4, sp[REG_SR]
+       andh    r4, (MODE_MASK >> 16), COH
+       brne    fault_resume_kernel
+
+       get_thread_info r0
+       ld.w    r1, r0[TI_flags]
+       andl    r1, _TIF_WORK_MASK, COH
+       brne    fault_exit_work
+
+fault_resume_user:
+       popm    r8-r9
+       mask_exceptions
+       mtsr    SYSREG_RAR_EX, r8
+       mtsr    SYSREG_RSR_EX, r9
+       ldmts   sp++, r0-lr
+       sub     sp, -4
+       rete
+
+fault_resume_kernel:
+#ifdef CONFIG_PREEMPT
+       get_thread_info r0
+       ld.w    r2, r0[TI_preempt_count]
+       cp.w    r2, 0
+       brne    1f
+       ld.w    r1, r0[TI_flags]
+       bld     r1, TIF_NEED_RESCHED
+       brcc    1f
+       lddsp   r4, sp[REG_SR]
+       bld     r4, SYSREG_GM_OFFSET
+       brcs    1f
+       rcall   preempt_schedule_irq
+1:
+#endif
+
+       popm    r8-r9
+       mask_exceptions
+       mfsr    r1, SYSREG_SR
+       mtsr    SYSREG_RAR_EX, r8
+       mtsr    SYSREG_RSR_EX, r9
+       popm    lr
+       sub     sp, -4          /* ignore SP */
+       popm    r0-r12
+       sub     sp, -4          /* ignore r12_orig */
+       rete
+
+irq_exit_work:
+       /* Switch to exception mode so that we can share the same code. */
+       mfsr    r8, SYSREG_SR
+       cbr     r8, SYSREG_M0_OFFSET
+       orh     r8, hi(SYSREG_BIT(M1) | SYSREG_BIT(M2))
+       mtsr    SYSREG_SR, r8
+       sub     pc, -2
+       get_thread_info r0
+       ld.w    r1, r0[TI_flags]
+
+fault_exit_work:
+       bld     r1, TIF_NEED_RESCHED
+       brcc    1f
+       unmask_interrupts
+       rcall   schedule
+       mask_interrupts
+       ld.w    r1, r0[TI_flags]
+       rjmp    fault_exit_work
+
+1:     mov     r2, _TIF_SIGPENDING | _TIF_RESTORE_SIGMASK
+       tst     r1, r2
+       breq    2f
+       unmask_interrupts
+       mov     r12, sp
+       mov     r11, r0
+       rcall   do_notify_resume
+       mask_interrupts
+       ld.w    r1, r0[TI_flags]
+       rjmp    fault_exit_work
+
+2:     bld     r1, TIF_BREAKPOINT
+       brcc    fault_resume_user
+       mfsr    r3, SYSREG_TLBEHI
+       lddsp   r2, sp[REG_PC]
+       andl    r3, 0xff, COH
+       lsl     r3, 1
+       sbr     r3, 30
+       sbr     r3, 0
+       mtdr    DBGREG_BWA2A, r2
+       mtdr    DBGREG_BWC2A, r3
+       rjmp    fault_resume_user
+
+       /* If we get a debug trap from privileged context we end up here */
+handle_debug_priv:
+       /* Fix up LR and SP in regs. r11 contains the mode we came from */
+       mfsr    r8, SYSREG_SR
+       mov     r9, r8
+       andh    r8, hi(~MODE_MASK)
+       or      r8, r11
+       mtsr    SYSREG_SR, r8
+       sub     pc, -2
+       stdsp   sp[REG_LR], lr
+       mtsr    SYSREG_SR, r9
+       sub     pc, -2
+       sub     r10, sp, -FRAME_SIZE_FULL
+       stdsp   sp[REG_SP], r10
+       mov     r12, sp
+       rcall   do_debug_priv
+
+       /* Now, put everything back */
+       ssrf    SR_EM_BIT
+       popm    r10, r11
+       mtsr    SYSREG_RAR_DBG, r10
+       mtsr    SYSREG_RSR_DBG, r11
+       mfsr    r8, SYSREG_SR
+       mov     r9, r8
+       andh    r8, hi(~MODE_MASK)
+       andh    r11, hi(MODE_MASK)
+       or      r8, r11
+       mtsr    SYSREG_SR, r8
+       sub     pc, -2
+       popm    lr
+       mtsr    SYSREG_SR, r9
+       sub     pc, -2
+       sub     sp, -4          /* skip SP */
+       popm    r0-r12
+       sub     sp, -4
+       retd
+
+       /*
+        * At this point, everything is masked, that is, interrupts,
+        * exceptions and debugging traps. We might get called from
+        * interrupt or exception context in some rare cases, but this
+        * will be taken care of by do_debug(), so we're not going to
+        * do a 100% correct context save here.
+        */
+handle_debug:
+       sub     sp, 4           /* r12_orig */
+       stmts   --sp, r0-lr
+       mfsr    r10, SYSREG_RAR_DBG
+       mfsr    r11, SYSREG_RSR_DBG
+       unmask_exceptions
+       pushm   r10,r11
+       andh    r11, (MODE_MASK >> 16), COH
+       brne    handle_debug_priv
+
+       mov     r12, sp
+       rcall   do_debug
+
+       lddsp   r10, sp[REG_SR]
+       andh    r10, (MODE_MASK >> 16), COH
+       breq    debug_resume_user
+
+debug_restore_all:
+       popm    r10,r11
+       mask_exceptions
+       mtsr    SYSREG_RSR_DBG, r11
+       mtsr    SYSREG_RAR_DBG, r10
+       ldmts   sp++, r0-lr
+       sub     sp, -4
+       retd
+
+debug_resume_user:
+       get_thread_info r0
+       mask_interrupts
+
+       ld.w    r1, r0[TI_flags]
+       andl    r1, _TIF_DBGWORK_MASK, COH
+       breq    debug_restore_all
+
+1:     bld     r1, TIF_NEED_RESCHED
+       brcc    2f
+       unmask_interrupts
+       rcall   schedule
+       mask_interrupts
+       ld.w    r1, r0[TI_flags]
+       rjmp    1b
+
+2:     mov     r2, _TIF_SIGPENDING | _TIF_RESTORE_SIGMASK
+       tst     r1, r2
+       breq    3f
+       unmask_interrupts
+       mov     r12, sp
+       mov     r11, r0
+       rcall   do_notify_resume
+       mask_interrupts
+       ld.w    r1, r0[TI_flags]
+       rjmp    1b
+
+3:     bld     r1, TIF_SINGLE_STEP
+       brcc    debug_restore_all
+       mfdr    r2, DBGREG_DC
+       sbr     r2, DC_SS_BIT
+       mtdr    DBGREG_DC, r2
+       rjmp    debug_restore_all
+
+       .set    rsr_int0,       SYSREG_RSR_INT0
+       .set    rsr_int1,       SYSREG_RSR_INT1
+       .set    rsr_int2,       SYSREG_RSR_INT2
+       .set    rsr_int3,       SYSREG_RSR_INT3
+       .set    rar_int0,       SYSREG_RAR_INT0
+       .set    rar_int1,       SYSREG_RAR_INT1
+       .set    rar_int2,       SYSREG_RAR_INT2
+       .set    rar_int3,       SYSREG_RAR_INT3
+
+       .macro  IRQ_LEVEL level
+       .type   irq_level\level, @function
+irq_level\level:
+       sub     sp, 4           /* r12_orig */
+       stmts   --sp,r0-lr
+       mfsr    r8, rar_int\level
+       mfsr    r9, rsr_int\level
+       pushm   r8-r9
+
+       mov     r11, sp
+       mov     r12, \level
+
+       rcall   do_IRQ
+
+       lddsp   r4, sp[REG_SR]
+       andh    r4, (MODE_MASK >> 16), COH
+#ifdef CONFIG_PREEMPT
+       brne    2f
+#else
+       brne    1f
+#endif
+
+       get_thread_info r0
+       ld.w    r1, r0[TI_flags]
+       andl    r1, _TIF_WORK_MASK, COH
+       brne    irq_exit_work
+
+1:     popm    r8-r9
+       mtsr    rar_int\level, r8
+       mtsr    rsr_int\level, r9
+       ldmts   sp++,r0-lr
+       sub     sp, -4          /* ignore r12_orig */
+       rete
+
+#ifdef CONFIG_PREEMPT
+2:
+       get_thread_info r0
+       ld.w    r2, r0[TI_preempt_count]
+       cp.w    r2, 0
+       brne    1b
+       ld.w    r1, r0[TI_flags]
+       bld     r1, TIF_NEED_RESCHED
+       brcc    1b
+       lddsp   r4, sp[REG_SR]
+       bld     r4, SYSREG_GM_OFFSET
+       brcs    1b
+       rcall   preempt_schedule_irq
+       rjmp    1b
+#endif
+       .endm
+
+       .section .irq.text,"ax",@progbits
+
+       .global irq_level0
+       .global irq_level1
+       .global irq_level2
+       .global irq_level3
+       IRQ_LEVEL 0
+       IRQ_LEVEL 1
+       IRQ_LEVEL 2
+       IRQ_LEVEL 3
diff --git a/arch/avr32/kernel/head.S b/arch/avr32/kernel/head.S
new file mode 100644 (file)
index 0000000..773b7ad
--- /dev/null
@@ -0,0 +1,45 @@
+/*
+ * Non-board-specific low-level startup code
+ *
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/linkage.h>
+
+#include <asm/page.h>
+#include <asm/thread_info.h>
+#include <asm/sysreg.h>
+
+       .section .init.text,"ax"
+       .global kernel_entry
+kernel_entry:
+       /* Initialize status register */
+       lddpc   r0, init_sr
+       mtsr    SYSREG_SR, r0
+
+       /* Set initial stack pointer */
+       lddpc   sp, stack_addr
+       sub     sp, -THREAD_SIZE
+
+#ifdef CONFIG_FRAME_POINTER
+       /* Mark last stack frame */
+       mov     lr, 0
+       mov     r7, 0
+#endif
+
+       /* Set up the PIO, SDRAM controller, early printk, etc. */
+       rcall   board_early_init
+
+       /* Start the show */
+       lddpc   pc, kernel_start_addr
+
+       .align  2
+init_sr:
+       .long   0x007f0000      /* Supervisor mode, everything masked */
+stack_addr:
+       .long   init_thread_union
+kernel_start_addr:
+       .long   start_kernel
diff --git a/arch/avr32/kernel/init_task.c b/arch/avr32/kernel/init_task.c
new file mode 100644 (file)
index 0000000..effcacf
--- /dev/null
@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/module.h>
+#include <linux/fs.h>
+#include <linux/sched.h>
+#include <linux/init_task.h>
+#include <linux/mqueue.h>
+
+#include <asm/pgtable.h>
+
+static struct fs_struct init_fs = INIT_FS;
+static struct files_struct init_files = INIT_FILES;
+static struct signal_struct init_signals = INIT_SIGNALS(init_signals);
+static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand);
+struct mm_struct init_mm = INIT_MM(init_mm);
+
+EXPORT_SYMBOL(init_mm);
+
+/*
+ * Initial thread structure. Must be aligned on an 8192-byte boundary.
+ */
+union thread_union init_thread_union
+       __attribute__((__section__(".data.init_task"))) =
+               { INIT_THREAD_INFO(init_task) };
+
+/*
+ * Initial task structure.
+ *
+ * All other task structs will be allocated on slabs in fork.c
+ */
+struct task_struct init_task = INIT_TASK(init_task);
+
+EXPORT_SYMBOL(init_task);
diff --git a/arch/avr32/kernel/irq.c b/arch/avr32/kernel/irq.c
new file mode 100644 (file)
index 0000000..856f354
--- /dev/null
@@ -0,0 +1,71 @@
+/*
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * Based on arch/i386/kernel/irq.c
+ *   Copyright (C) 1992, 1998 Linus Torvalds, Ingo Molnar
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This file contains the code used by various IRQ handling routines:
+ * asking for different IRQ's should be done through these routines
+ * instead of just grabbing them. Thus setups with different IRQ numbers
+ * shouldn't result in any weird surprises, and installing new handlers
+ * should be easier.
+ *
+ * IRQ's are in fact implemented a bit like signal handlers for the kernel.
+ * Naturally it's not a 1:1 relation, but there are similarities.
+ */
+
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/kernel_stat.h>
+#include <linux/proc_fs.h>
+#include <linux/seq_file.h>
+#include <linux/sysdev.h>
+
+/*
+ * 'what should we do if we get a hw irq event on an illegal vector'.
+ * each architecture has to answer this themselves.
+ */
+void ack_bad_irq(unsigned int irq)
+{
+       printk("unexpected IRQ %u\n", irq);
+}
+
+#ifdef CONFIG_PROC_FS
+int show_interrupts(struct seq_file *p, void *v)
+{
+       int i = *(loff_t *)v, cpu;
+       struct irqaction *action;
+       unsigned long flags;
+
+       if (i == 0) {
+               seq_puts(p, "           ");
+               for_each_online_cpu(cpu)
+                       seq_printf(p, "CPU%d       ", cpu);
+               seq_putc(p, '\n');
+       }
+
+       if (i < NR_IRQS) {
+               spin_lock_irqsave(&irq_desc[i].lock, flags);
+               action = irq_desc[i].action;
+               if (!action)
+                       goto unlock;
+
+               seq_printf(p, "%3d: ", i);
+               for_each_online_cpu(cpu)
+                       seq_printf(p, "%10u ", kstat_cpu(cpu).irqs[i]);
+               seq_printf(p, "  %s", action->name);
+               for (action = action->next; action; action = action->next)
+                       seq_printf(p, ", %s", action->name);
+
+               seq_putc(p, '\n');
+       unlock:
+               spin_unlock_irqrestore(&irq_desc[i].lock, flags);
+       }
+
+       return 0;
+}
+#endif
diff --git a/arch/avr32/kernel/kprobes.c b/arch/avr32/kernel/kprobes.c
new file mode 100644 (file)
index 0000000..6caf9e8
--- /dev/null
@@ -0,0 +1,270 @@
+/*
+ *  Kernel Probes (KProbes)
+ *
+ * Copyright (C) 2005-2006 Atmel Corporation
+ *
+ * Based on arch/ppc64/kernel/kprobes.c
+ *  Copyright (C) IBM Corporation, 2002, 2004
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/kprobes.h>
+#include <linux/ptrace.h>
+
+#include <asm/cacheflush.h>
+#include <asm/kdebug.h>
+#include <asm/ocd.h>
+
+DEFINE_PER_CPU(struct kprobe *, current_kprobe);
+static unsigned long kprobe_status;
+static struct pt_regs jprobe_saved_regs;
+
+int __kprobes arch_prepare_kprobe(struct kprobe *p)
+{
+       int ret = 0;
+
+       if ((unsigned long)p->addr & 0x01) {
+               printk("Attempt to register kprobe at an unaligned address\n");
+               ret = -EINVAL;
+       }
+
+       /* XXX: Might be a good idea to check if p->addr is a valid
+        * kernel address as well... */
+
+       if (!ret) {
+               pr_debug("copy kprobe at %p\n", p->addr);
+               memcpy(p->ainsn.insn, p->addr, MAX_INSN_SIZE * sizeof(kprobe_opcode_t));
+               p->opcode = *p->addr;
+       }
+
+       return ret;
+}
+
+void __kprobes arch_arm_kprobe(struct kprobe *p)
+{
+       pr_debug("arming kprobe at %p\n", p->addr);
+       *p->addr = BREAKPOINT_INSTRUCTION;
+       flush_icache_range((unsigned long)p->addr,
+                          (unsigned long)p->addr + sizeof(kprobe_opcode_t));
+}
+
+void __kprobes arch_disarm_kprobe(struct kprobe *p)
+{
+       pr_debug("disarming kprobe at %p\n", p->addr);
+       *p->addr = p->opcode;
+       flush_icache_range((unsigned long)p->addr,
+                          (unsigned long)p->addr + sizeof(kprobe_opcode_t));
+}
+
+static void __kprobes prepare_singlestep(struct kprobe *p, struct pt_regs *regs)
+{
+       unsigned long dc;
+
+       pr_debug("preparing to singlestep over %p (PC=%08lx)\n",
+                p->addr, regs->pc);
+
+       BUG_ON(!(sysreg_read(SR) & SYSREG_BIT(SR_D)));
+
+       dc = __mfdr(DBGREG_DC);
+       dc |= DC_SS;
+       __mtdr(DBGREG_DC, dc);
+
+       /*
+        * We must run the instruction from its original location
+        * since it may actually reference PC.
+        *
+        * TODO: Do the instruction replacement directly in icache.
+        */
+       *p->addr = p->opcode;
+       flush_icache_range((unsigned long)p->addr,
+                          (unsigned long)p->addr + sizeof(kprobe_opcode_t));
+}
+
+static void __kprobes resume_execution(struct kprobe *p, struct pt_regs *regs)
+{
+       unsigned long dc;
+
+       pr_debug("resuming execution at PC=%08lx\n", regs->pc);
+
+       dc = __mfdr(DBGREG_DC);
+       dc &= ~DC_SS;
+       __mtdr(DBGREG_DC, dc);
+
+       *p->addr = BREAKPOINT_INSTRUCTION;
+       flush_icache_range((unsigned long)p->addr,
+                          (unsigned long)p->addr + sizeof(kprobe_opcode_t));
+}
+
+static void __kprobes set_current_kprobe(struct kprobe *p)
+{
+       __get_cpu_var(current_kprobe) = p;
+}
+
+static int __kprobes kprobe_handler(struct pt_regs *regs)
+{
+       struct kprobe *p;
+       void *addr = (void *)regs->pc;
+       int ret = 0;
+
+       pr_debug("kprobe_handler: kprobe_running=%d\n",
+                kprobe_running());
+
+       /*
+        * We don't want to be preempted for the entire
+        * duration of kprobe processing
+        */
+       preempt_disable();
+
+       /* Check that we're not recursing */
+       if (kprobe_running()) {
+               p = get_kprobe(addr);
+               if (p) {
+                       if (kprobe_status == KPROBE_HIT_SS) {
+                               printk("FIXME: kprobe hit while single-stepping!\n");
+                               goto no_kprobe;
+                       }
+
+                       printk("FIXME: kprobe hit while handling another kprobe\n");
+                       goto no_kprobe;
+               } else {
+                       p = kprobe_running();
+                       if (p->break_handler && p->break_handler(p, regs))
+                               goto ss_probe;
+               }
+               /* If it's not ours, can't be delete race, (we hold lock). */
+               goto no_kprobe;
+       }
+
+       p = get_kprobe(addr);
+       if (!p)
+               goto no_kprobe;
+
+       kprobe_status = KPROBE_HIT_ACTIVE;
+       set_current_kprobe(p);
+       if (p->pre_handler && p->pre_handler(p, regs))
+               /* handler has already set things up, so skip ss setup */
+               return 1;
+
+ss_probe:
+       prepare_singlestep(p, regs);
+       kprobe_status = KPROBE_HIT_SS;
+       return 1;
+
+no_kprobe:
+       return ret;
+}
+
+static int __kprobes post_kprobe_handler(struct pt_regs *regs)
+{
+       struct kprobe *cur = kprobe_running();
+
+       pr_debug("post_kprobe_handler, cur=%p\n", cur);
+
+       if (!cur)
+               return 0;
+
+       if (cur->post_handler) {
+               kprobe_status = KPROBE_HIT_SSDONE;
+               cur->post_handler(cur, regs, 0);
+       }
+
+       resume_execution(cur, regs);
+       reset_current_kprobe();
+       preempt_enable_no_resched();
+
+       return 1;
+}
+
+static int __kprobes kprobe_fault_handler(struct pt_regs *regs, int trapnr)
+{
+       struct kprobe *cur = kprobe_running();
+
+       pr_debug("kprobe_fault_handler: trapnr=%d\n", trapnr);
+
+       if (cur->fault_handler && cur->fault_handler(cur, regs, trapnr))
+               return 1;
+
+       if (kprobe_status & KPROBE_HIT_SS) {
+               resume_execution(cur, regs);
+               preempt_enable_no_resched();
+       }
+       return 0;
+}
+
+/*
+ * Wrapper routine to for handling exceptions.
+ */
+int __kprobes kprobe_exceptions_notify(struct notifier_block *self,
+                                      unsigned long val, void *data)
+{
+       struct die_args *args = (struct die_args *)data;
+       int ret = NOTIFY_DONE;
+
+       pr_debug("kprobe_exceptions_notify: val=%lu, data=%p\n",
+                val, data);
+
+       switch (val) {
+       case DIE_BREAKPOINT:
+               if (kprobe_handler(args->regs))
+                       ret = NOTIFY_STOP;
+               break;
+       case DIE_SSTEP:
+               if (post_kprobe_handler(args->regs))
+                       ret = NOTIFY_STOP;
+               break;
+       case DIE_FAULT:
+               if (kprobe_running()
+                   && kprobe_fault_handler(args->regs, args->trapnr))
+                       ret = NOTIFY_STOP;
+               break;
+       default:
+               break;
+       }
+
+       return ret;
+}
+
+int __kprobes setjmp_pre_handler(struct kprobe *p, struct pt_regs *regs)
+{
+       struct jprobe *jp = container_of(p, struct jprobe, kp);
+
+       memcpy(&jprobe_saved_regs, regs, sizeof(struct pt_regs));
+
+       /*
+        * TODO: We should probably save some of the stack here as
+        * well, since gcc may pass arguments on the stack for certain
+        * functions (lots of arguments, large aggregates, varargs)
+        */
+
+       /* setup return addr to the jprobe handler routine */
+       regs->pc = (unsigned long)jp->entry;
+       return 1;
+}
+
+void __kprobes jprobe_return(void)
+{
+       asm volatile("breakpoint" ::: "memory");
+}
+
+int __kprobes longjmp_break_handler(struct kprobe *p, struct pt_regs *regs)
+{
+       /*
+        * FIXME - we should ideally be validating that we got here 'cos
+        * of the "trap" in jprobe_return() above, before restoring the
+        * saved regs...
+        */
+       memcpy(regs, &jprobe_saved_regs, sizeof(struct pt_regs));
+       return 1;
+}
+
+int __init arch_init_kprobes(void)
+{
+       printk("KPROBES: Enabling monitor mode (MM|DBE)...\n");
+       __mtdr(DBGREG_DC, DC_MM | DC_DBE);
+
+       /* TODO: Register kretprobe trampoline */
+       return 0;
+}
diff --git a/arch/avr32/kernel/module.c b/arch/avr32/kernel/module.c
new file mode 100644 (file)
index 0000000..dfc32f2
--- /dev/null
@@ -0,0 +1,324 @@
+/*
+ * AVR32-specific kernel module loader
+ *
+ * Copyright (C) 2005-2006 Atmel Corporation
+ *
+ * GOT initialization parts are based on the s390 version
+ *   Copyright (C) 2002, 2003 IBM Deutschland Entwicklung GmbH,
+ *                            IBM Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/moduleloader.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/elf.h>
+#include <linux/vmalloc.h>
+
+void *module_alloc(unsigned long size)
+{
+       if (size == 0)
+               return NULL;
+       return vmalloc(size);
+}
+
+void module_free(struct module *mod, void *module_region)
+{
+       vfree(mod->arch.syminfo);
+       mod->arch.syminfo = NULL;
+
+       vfree(module_region);
+       /* FIXME: if module_region == mod->init_region, trim exception
+        * table entries. */
+}
+
+static inline int check_rela(Elf32_Rela *rela, struct module *module,
+                            char *strings, Elf32_Sym *symbols)
+{
+       struct mod_arch_syminfo *info;
+
+       info = module->arch.syminfo + ELF32_R_SYM(rela->r_info);
+       switch (ELF32_R_TYPE(rela->r_info)) {
+       case R_AVR32_GOT32:
+       case R_AVR32_GOT16:
+       case R_AVR32_GOT8:
+       case R_AVR32_GOT21S:
+       case R_AVR32_GOT18SW:   /* mcall */
+       case R_AVR32_GOT16S:    /* ld.w */
+               if (rela->r_addend != 0) {
+                       printk(KERN_ERR
+                              "GOT relocation against %s at offset %u with addend\n",
+                              strings + symbols[ELF32_R_SYM(rela->r_info)].st_name,
+                              rela->r_offset);
+                       return -ENOEXEC;
+               }
+               if (info->got_offset == -1UL) {
+                       info->got_offset = module->arch.got_size;
+                       module->arch.got_size += sizeof(void *);
+               }
+               pr_debug("GOT[%3lu] %s\n", info->got_offset,
+                        strings + symbols[ELF32_R_SYM(rela->r_info)].st_name);
+               break;
+       }
+
+       return 0;
+}
+
+int module_frob_arch_sections(Elf_Ehdr *hdr, Elf_Shdr *sechdrs,
+                             char *secstrings, struct module *module)
+{
+       Elf32_Shdr *symtab;
+       Elf32_Sym *symbols;
+       Elf32_Rela *rela;
+       char *strings;
+       int nrela, i, j;
+       int ret;
+
+       /* Find the symbol table */
+       symtab = NULL;
+       for (i = 0; i < hdr->e_shnum; i++)
+               switch (sechdrs[i].sh_type) {
+               case SHT_SYMTAB:
+                       symtab = &sechdrs[i];
+                       break;
+               }
+       if (!symtab) {
+               printk(KERN_ERR "module %s: no symbol table\n", module->name);
+               return -ENOEXEC;
+       }
+
+       /* Allocate room for one syminfo structure per symbol. */
+       module->arch.nsyms = symtab->sh_size / sizeof(Elf_Sym);
+       module->arch.syminfo = vmalloc(module->arch.nsyms
+                                  * sizeof(struct mod_arch_syminfo));
+       if (!module->arch.syminfo)
+               return -ENOMEM;
+
+       symbols = (void *)hdr + symtab->sh_offset;
+       strings = (void *)hdr + sechdrs[symtab->sh_link].sh_offset;
+       for (i = 0; i < module->arch.nsyms; i++) {
+               if (symbols[i].st_shndx == SHN_UNDEF &&
+                   strcmp(strings + symbols[i].st_name,
+                          "_GLOBAL_OFFSET_TABLE_") == 0)
+                       /* "Define" it as absolute. */
+                       symbols[i].st_shndx = SHN_ABS;
+               module->arch.syminfo[i].got_offset = -1UL;
+               module->arch.syminfo[i].got_initialized = 0;
+       }
+
+       /* Allocate GOT entries for symbols that need it. */
+       module->arch.got_size = 0;
+       for (i = 0; i < hdr->e_shnum; i++) {
+               if (sechdrs[i].sh_type != SHT_RELA)
+                       continue;
+               nrela = sechdrs[i].sh_size / sizeof(Elf32_Rela);
+               rela = (void *)hdr + sechdrs[i].sh_offset;
+               for (j = 0; j < nrela; j++) {
+                       ret = check_rela(rela + j, module,
+                                        strings, symbols);
+                       if (ret)
+                               goto out_free_syminfo;
+               }
+       }
+
+       /*
+        * Increase core size to make room for GOT and set start
+        * offset for GOT.
+        */
+       module->core_size = ALIGN(module->core_size, 4);
+       module->arch.got_offset = module->core_size;
+       module->core_size += module->arch.got_size;
+
+       return 0;
+
+out_free_syminfo:
+       vfree(module->arch.syminfo);
+       module->arch.syminfo = NULL;
+
+       return ret;
+}
+
+static inline int reloc_overflow(struct module *module, const char *reloc_name,
+                                Elf32_Addr relocation)
+{
+       printk(KERN_ERR "module %s: Value %lx does not fit relocation %s\n",
+              module->name, (unsigned long)relocation, reloc_name);
+       return -ENOEXEC;
+}
+
+#define get_u16(loc)           (*((uint16_t *)loc))
+#define put_u16(loc, val)      (*((uint16_t *)loc) = (val))
+
+int apply_relocate_add(Elf32_Shdr *sechdrs, const char *strtab,
+                      unsigned int symindex, unsigned int relindex,
+                      struct module *module)
+{
+       Elf32_Shdr *symsec = sechdrs + symindex;
+       Elf32_Shdr *relsec = sechdrs + relindex;
+       Elf32_Shdr *dstsec = sechdrs + relsec->sh_info;
+       Elf32_Rela *rel = (void *)relsec->sh_addr;
+       unsigned int i;
+       int ret = 0;
+
+       for (i = 0; i < relsec->sh_size / sizeof(Elf32_Rela); i++, rel++) {
+               struct mod_arch_syminfo *info;
+               Elf32_Sym *sym;
+               Elf32_Addr relocation;
+               uint32_t *location;
+               uint32_t value;
+
+               location = (void *)dstsec->sh_addr + rel->r_offset;
+               sym = (Elf32_Sym *)symsec->sh_addr + ELF32_R_SYM(rel->r_info);
+               relocation = sym->st_value + rel->r_addend;
+
+               info = module->arch.syminfo + ELF32_R_SYM(rel->r_info);
+
+               /* Initialize GOT entry if necessary */
+               switch (ELF32_R_TYPE(rel->r_info)) {
+               case R_AVR32_GOT32:
+               case R_AVR32_GOT16:
+               case R_AVR32_GOT8:
+               case R_AVR32_GOT21S:
+               case R_AVR32_GOT18SW:
+               case R_AVR32_GOT16S:
+                       if (!info->got_initialized) {
+                               Elf32_Addr *gotent;
+
+                               gotent = (module->module_core
+                                         + module->arch.got_offset
+                                         + info->got_offset);
+                               *gotent = relocation;
+                               info->got_initialized = 1;
+                       }
+
+                       relocation = info->got_offset;
+                       break;
+               }
+
+               switch (ELF32_R_TYPE(rel->r_info)) {
+               case R_AVR32_32:
+               case R_AVR32_32_CPENT:
+                       *location = relocation;
+                       break;
+               case R_AVR32_22H_PCREL:
+                       relocation -= (Elf32_Addr)location;
+                       if ((relocation & 0xffe00001) != 0
+                           && (relocation & 0xffc00001) != 0xffc00000)
+                               return reloc_overflow(module,
+                                                     "R_AVR32_22H_PCREL",
+                                                     relocation);
+                       relocation >>= 1;
+
+                       value = *location;
+                       value = ((value & 0xe1ef0000)
+                                | (relocation & 0xffff)
+                                | ((relocation & 0x10000) << 4)
+                                | ((relocation & 0x1e0000) << 8));
+                       *location = value;
+                       break;
+               case R_AVR32_11H_PCREL:
+                       relocation -= (Elf32_Addr)location;
+                       if ((relocation & 0xfffffc01) != 0
+                           && (relocation & 0xfffff801) != 0xfffff800)
+                               return reloc_overflow(module,
+                                                     "R_AVR32_11H_PCREL",
+                                                     relocation);
+                       value = get_u16(location);
+                       value = ((value & 0xf00c)
+                                | ((relocation & 0x1fe) << 3)
+                                | ((relocation & 0x600) >> 9));
+                       put_u16(location, value);
+                       break;
+               case R_AVR32_9H_PCREL:
+                       relocation -= (Elf32_Addr)location;
+                       if ((relocation & 0xffffff01) != 0
+                           && (relocation & 0xfffffe01) != 0xfffffe00)
+                               return reloc_overflow(module,
+                                                     "R_AVR32_9H_PCREL",
+                                                     relocation);
+                       value = get_u16(location);
+                       value = ((value & 0xf00f)
+                                | ((relocation & 0x1fe) << 3));
+                       put_u16(location, value);
+                       break;
+               case R_AVR32_9UW_PCREL:
+                       relocation -= ((Elf32_Addr)location) & 0xfffffffc;
+                       if ((relocation & 0xfffffc03) != 0)
+                               return reloc_overflow(module,
+                                                     "R_AVR32_9UW_PCREL",
+                                                     relocation);
+                       value = get_u16(location);
+                       value = ((value & 0xf80f)
+                                | ((relocation & 0x1fc) << 2));
+                       put_u16(location, value);
+                       break;
+               case R_AVR32_GOTPC:
+                       /*
+                        * R6 = PC - (PC - GOT)
+                        *
+                        * At this point, relocation contains the
+                        * value of PC.  Just subtract the value of
+                        * GOT, and we're done.
+                        */
+                       pr_debug("GOTPC: PC=0x%lx, got_offset=0x%lx, core=0x%p\n",
+                                relocation, module->arch.got_offset,
+                                module->module_core);
+                       relocation -= ((unsigned long)module->module_core
+                                      + module->arch.got_offset);
+                       *location = relocation;
+                       break;
+               case R_AVR32_GOT18SW:
+                       if ((relocation & 0xfffe0003) != 0
+                           && (relocation & 0xfffc0003) != 0xffff0000)
+                               return reloc_overflow(module, "R_AVR32_GOT18SW",
+                                                    relocation);
+                       relocation >>= 2;
+                       /* fall through */
+               case R_AVR32_GOT16S:
+                       if ((relocation & 0xffff8000) != 0
+                           && (relocation & 0xffff0000) != 0xffff0000)
+                               return reloc_overflow(module, "R_AVR32_GOT16S",
+                                                     relocation);
+                       pr_debug("GOT reloc @ 0x%lx -> %lu\n",
+                                rel->r_offset, relocation);
+                       value = *location;
+                       value = ((value & 0xffff0000)
+                                | (relocation & 0xffff));
+                       *location = value;
+                       break;
+
+               default:
+                       printk(KERN_ERR "module %s: Unknown relocation: %u\n",
+                              module->name, ELF32_R_TYPE(rel->r_info));
+                       return -ENOEXEC;
+               }
+       }
+
+       return ret;
+}
+
+int apply_relocate(Elf32_Shdr *sechdrs, const char *strtab,
+                  unsigned int symindex, unsigned int relindex,
+                  struct module *module)
+{
+       printk(KERN_ERR "module %s: REL relocations are not supported\n",
+               module->name);
+       return -ENOEXEC;
+}
+
+int module_finalize(const Elf_Ehdr *hdr, const Elf_Shdr *sechdrs,
+                   struct module *module)
+{
+       vfree(module->arch.syminfo);
+       module->arch.syminfo = NULL;
+
+       return 0;
+}
+
+void module_arch_cleanup(struct module *module)
+{
+
+}
diff --git a/arch/avr32/kernel/process.c b/arch/avr32/kernel/process.c
new file mode 100644 (file)
index 0000000..317dc50
--- /dev/null
@@ -0,0 +1,276 @@
+/*
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/sched.h>
+#include <linux/module.h>
+#include <linux/kallsyms.h>
+#include <linux/fs.h>
+#include <linux/ptrace.h>
+#include <linux/reboot.h>
+#include <linux/unistd.h>
+
+#include <asm/sysreg.h>
+#include <asm/ocd.h>
+
+void (*pm_power_off)(void) = NULL;
+EXPORT_SYMBOL(pm_power_off);
+
+/*
+ * This file handles the architecture-dependent parts of process handling..
+ */
+
+void cpu_idle(void)
+{
+       /* endless idle loop with no priority at all */
+       while (1) {
+               /* TODO: Enter sleep mode */
+               while (!need_resched())
+                       cpu_relax();
+               preempt_enable_no_resched();
+               schedule();
+               preempt_disable();
+       }
+}
+
+void machine_halt(void)
+{
+}
+
+void machine_power_off(void)
+{
+}
+
+void machine_restart(char *cmd)
+{
+       __mtdr(DBGREG_DC, DC_DBE);
+       __mtdr(DBGREG_DC, DC_RES);
+       while (1) ;
+}
+
+/*
+ * PC is actually discarded when returning from a system call -- the
+ * return address must be stored in LR. This function will make sure
+ * LR points to do_exit before starting the thread.
+ *
+ * Also, when returning from fork(), r12 is 0, so we must copy the
+ * argument as well.
+ *
+ *  r0 : The argument to the main thread function
+ *  r1 : The address of do_exit
+ *  r2 : The address of the main thread function
+ */
+asmlinkage extern void kernel_thread_helper(void);
+__asm__("      .type   kernel_thread_helper, @function\n"
+       "kernel_thread_helper:\n"
+       "       mov     r12, r0\n"
+       "       mov     lr, r2\n"
+       "       mov     pc, r1\n"
+       "       .size   kernel_thread_helper, . - kernel_thread_helper");
+
+int kernel_thread(int (*fn)(void *), void *arg, unsigned long flags)
+{
+       struct pt_regs regs;
+
+       memset(&regs, 0, sizeof(regs));
+
+       regs.r0 = (unsigned long)arg;
+       regs.r1 = (unsigned long)fn;
+       regs.r2 = (unsigned long)do_exit;
+       regs.lr = (unsigned long)kernel_thread_helper;
+       regs.pc = (unsigned long)kernel_thread_helper;
+       regs.sr = MODE_SUPERVISOR;
+
+       return do_fork(flags | CLONE_VM | CLONE_UNTRACED,
+                      0, &regs, 0, NULL, NULL);
+}
+EXPORT_SYMBOL(kernel_thread);
+
+/*
+ * Free current thread data structures etc
+ */
+void exit_thread(void)
+{
+       /* nothing to do */
+}
+
+void flush_thread(void)
+{
+       /* nothing to do */
+}
+
+void release_thread(struct task_struct *dead_task)
+{
+       /* do nothing */
+}
+
+static const char *cpu_modes[] = {
+       "Application", "Supervisor", "Interrupt level 0", "Interrupt level 1",
+       "Interrupt level 2", "Interrupt level 3", "Exception", "NMI"
+};
+
+void show_regs(struct pt_regs *regs)
+{
+       unsigned long sp = regs->sp;
+       unsigned long lr = regs->lr;
+       unsigned long mode = (regs->sr & MODE_MASK) >> MODE_SHIFT;
+
+       if (!user_mode(regs))
+               sp = (unsigned long)regs + FRAME_SIZE_FULL;
+
+       print_symbol("PC is at %s\n", instruction_pointer(regs));
+       print_symbol("LR is at %s\n", lr);
+       printk("pc : [<%08lx>]    lr : [<%08lx>]    %s\n"
+              "sp : %08lx  r12: %08lx  r11: %08lx\n",
+              instruction_pointer(regs),
+              lr, print_tainted(), sp, regs->r12, regs->r11);
+       printk("r10: %08lx  r9 : %08lx  r8 : %08lx\n",
+              regs->r10, regs->r9, regs->r8);
+       printk("r7 : %08lx  r6 : %08lx  r5 : %08lx  r4 : %08lx\n",
+              regs->r7, regs->r6, regs->r5, regs->r4);
+       printk("r3 : %08lx  r2 : %08lx  r1 : %08lx  r0 : %08lx\n",
+              regs->r3, regs->r2, regs->r1, regs->r0);
+       printk("Flags: %c%c%c%c%c\n",
+              regs->sr & SR_Q ? 'Q' : 'q',
+              regs->sr & SR_V ? 'V' : 'v',
+              regs->sr & SR_N ? 'N' : 'n',
+              regs->sr & SR_Z ? 'Z' : 'z',
+              regs->sr & SR_C ? 'C' : 'c');
+       printk("Mode bits: %c%c%c%c%c%c%c%c%c\n",
+              regs->sr & SR_H ? 'H' : 'h',
+              regs->sr & SR_R ? 'R' : 'r',
+              regs->sr & SR_J ? 'J' : 'j',
+              regs->sr & SR_EM ? 'E' : 'e',
+              regs->sr & SR_I3M ? '3' : '.',
+              regs->sr & SR_I2M ? '2' : '.',
+              regs->sr & SR_I1M ? '1' : '.',
+              regs->sr & SR_I0M ? '0' : '.',
+              regs->sr & SR_GM ? 'G' : 'g');
+       printk("CPU Mode: %s\n", cpu_modes[mode]);
+
+       show_trace(NULL, (unsigned long *)sp, regs);
+}
+EXPORT_SYMBOL(show_regs);
+
+/* Fill in the fpu structure for a core dump. This is easy -- we don't have any */
+int dump_fpu(struct pt_regs *regs, elf_fpregset_t *fpu)
+{
+       /* Not valid */
+       return 0;
+}
+
+asmlinkage void ret_from_fork(void);
+
+int copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
+               unsigned long unused,
+               struct task_struct *p, struct pt_regs *regs)
+{
+       struct pt_regs *childregs;
+
+       childregs = ((struct pt_regs *)(THREAD_SIZE + (unsigned long)p->thread_info)) - 1;
+       *childregs = *regs;
+
+       if (user_mode(regs))
+               childregs->sp = usp;
+       else
+               childregs->sp = (unsigned long)p->thread_info + THREAD_SIZE;
+
+       childregs->r12 = 0; /* Set return value for child */
+
+       p->thread.cpu_context.sr = MODE_SUPERVISOR | SR_GM;
+       p->thread.cpu_context.ksp = (unsigned long)childregs;
+       p->thread.cpu_context.pc = (unsigned long)ret_from_fork;
+
+       return 0;
+}
+
+/* r12-r8 are dummy parameters to force the compiler to use the stack */
+asmlinkage int sys_fork(struct pt_regs *regs)
+{
+       return do_fork(SIGCHLD, regs->sp, regs, 0, NULL, NULL);
+}
+
+asmlinkage int sys_clone(unsigned long clone_flags, unsigned long newsp,
+                        unsigned long parent_tidptr,
+                        unsigned long child_tidptr, struct pt_regs *regs)
+{
+       if (!newsp)
+               newsp = regs->sp;
+       return do_fork(clone_flags, newsp, regs, 0,
+                      (int __user *)parent_tidptr,
+                      (int __user *)child_tidptr);
+}
+
+asmlinkage int sys_vfork(struct pt_regs *regs)
+{
+       return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, regs->sp, regs,
+                      0, NULL, NULL);
+}
+
+asmlinkage int sys_execve(char __user *ufilename, char __user *__user *uargv,
+                         char __user *__user *uenvp, struct pt_regs *regs)
+{
+       int error;
+       char *filename;
+
+       filename = getname(ufilename);
+       error = PTR_ERR(filename);
+       if (IS_ERR(filename))
+               goto out;
+
+       error = do_execve(filename, uargv, uenvp, regs);
+       if (error == 0)
+               current->ptrace &= ~PT_DTRACE;
+       putname(filename);
+
+out:
+       return error;
+}
+
+
+/*
+ * This function is supposed to answer the question "who called
+ * schedule()?"
+ */
+unsigned long get_wchan(struct task_struct *p)
+{
+       unsigned long pc;
+       unsigned long stack_page;
+
+       if (!p || p == current || p->state == TASK_RUNNING)
+               return 0;
+
+       stack_page = (unsigned long)p->thread_info;
+       BUG_ON(!stack_page);
+
+       /*
+        * The stored value of PC is either the address right after
+        * the call to __switch_to() or ret_from_fork.
+        */
+       pc = thread_saved_pc(p);
+       if (in_sched_functions(pc)) {
+#ifdef CONFIG_FRAME_POINTER
+               unsigned long fp = p->thread.cpu_context.r7;
+               BUG_ON(fp < stack_page || fp > (THREAD_SIZE + stack_page));
+               pc = *(unsigned long *)fp;
+#else
+               /*
+                * We depend on the frame size of schedule here, which
+                * is actually quite ugly. It might be possible to
+                * determine the frame size automatically at build
+                * time by doing this:
+                *   - compile sched.c
+                *   - disassemble the resulting sched.o
+                *   - look for 'sub sp,??' shortly after '<schedule>:'
+                */
+               unsigned long sp = p->thread.cpu_context.ksp + 16;
+               BUG_ON(sp < stack_page || sp > (THREAD_SIZE + stack_page));
+               pc = *(unsigned long *)sp;
+#endif
+       }
+
+       return pc;
+}
diff --git a/arch/avr32/kernel/ptrace.c b/arch/avr32/kernel/ptrace.c
new file mode 100644 (file)
index 0000000..3c89e59
--- /dev/null
@@ -0,0 +1,371 @@
+/*
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#undef DEBUG
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/mm.h>
+#include <linux/smp_lock.h>
+#include <linux/ptrace.h>
+#include <linux/errno.h>
+#include <linux/user.h>
+#include <linux/security.h>
+#include <linux/unistd.h>
+#include <linux/notifier.h>
+
+#include <asm/traps.h>
+#include <asm/uaccess.h>
+#include <asm/ocd.h>
+#include <asm/mmu_context.h>
+#include <asm/kdebug.h>
+
+static struct pt_regs *get_user_regs(struct task_struct *tsk)
+{
+       return (struct pt_regs *)((unsigned long) tsk->thread_info +
+                                 THREAD_SIZE - sizeof(struct pt_regs));
+}
+
+static void ptrace_single_step(struct task_struct *tsk)
+{
+       pr_debug("ptrace_single_step: pid=%u, SR=0x%08lx\n",
+                tsk->pid, tsk->thread.cpu_context.sr);
+       if (!(tsk->thread.cpu_context.sr & SR_D)) {
+               /*
+                * Set a breakpoint at the current pc to force the
+                * process into debug mode.  The syscall/exception
+                * exit code will set a breakpoint at the return
+                * address when this flag is set.
+                */
+               pr_debug("ptrace_single_step: Setting TIF_BREAKPOINT\n");
+               set_tsk_thread_flag(tsk, TIF_BREAKPOINT);
+       }
+
+       /* The monitor code will do the actual step for us */
+       set_tsk_thread_flag(tsk, TIF_SINGLE_STEP);
+}
+
+/*
+ * Called by kernel/ptrace.c when detaching
+ *
+ * Make sure any single step bits, etc. are not set
+ */
+void ptrace_disable(struct task_struct *child)
+{
+       clear_tsk_thread_flag(child, TIF_SINGLE_STEP);
+}
+
+/*
+ * Handle hitting a breakpoint
+ */
+static void ptrace_break(struct task_struct *tsk, struct pt_regs *regs)
+{
+       siginfo_t info;
+
+       info.si_signo = SIGTRAP;
+       info.si_errno = 0;
+       info.si_code  = TRAP_BRKPT;
+       info.si_addr  = (void __user *)instruction_pointer(regs);
+
+       pr_debug("ptrace_break: Sending SIGTRAP to PID %u (pc = 0x%p)\n",
+                tsk->pid, info.si_addr);
+       force_sig_info(SIGTRAP, &info, tsk);
+}
+
+/*
+ * Read the word at offset "offset" into the task's "struct user". We
+ * actually access the pt_regs struct stored on the kernel stack.
+ */
+static int ptrace_read_user(struct task_struct *tsk, unsigned long offset,
+                           unsigned long __user *data)
+{
+       unsigned long *regs;
+       unsigned long value;
+
+       pr_debug("ptrace_read_user(%p, %#lx, %p)\n",
+                tsk, offset, data);
+
+       if (offset & 3 || offset >= sizeof(struct user)) {
+               printk("ptrace_read_user: invalid offset 0x%08lx\n", offset);
+               return -EIO;
+       }
+
+       regs = (unsigned long *)get_user_regs(tsk);
+
+       value = 0;
+       if (offset < sizeof(struct pt_regs))
+               value = regs[offset / sizeof(regs[0])];
+
+       return put_user(value, data);
+}
+
+/*
+ * Write the word "value" to offset "offset" into the task's "struct
+ * user". We actually access the pt_regs struct stored on the kernel
+ * stack.
+ */
+static int ptrace_write_user(struct task_struct *tsk, unsigned long offset,
+                            unsigned long value)
+{
+       unsigned long *regs;
+
+       if (offset & 3 || offset >= sizeof(struct user)) {
+               printk("ptrace_write_user: invalid offset 0x%08lx\n", offset);
+               return -EIO;
+       }
+
+       if (offset >= sizeof(struct pt_regs))
+               return 0;
+
+       regs = (unsigned long *)get_user_regs(tsk);
+       regs[offset / sizeof(regs[0])] = value;
+
+       return 0;
+}
+
+static int ptrace_getregs(struct task_struct *tsk, void __user *uregs)
+{
+       struct pt_regs *regs = get_user_regs(tsk);
+
+       return copy_to_user(uregs, regs, sizeof(*regs)) ? -EFAULT : 0;
+}
+
+static int ptrace_setregs(struct task_struct *tsk, const void __user *uregs)
+{
+       struct pt_regs newregs;
+       int ret;
+
+       ret = -EFAULT;
+       if (copy_from_user(&newregs, uregs, sizeof(newregs)) == 0) {
+               struct pt_regs *regs = get_user_regs(tsk);
+
+               ret = -EINVAL;
+               if (valid_user_regs(&newregs)) {
+                       *regs = newregs;
+                       ret = 0;
+               }
+       }
+
+       return ret;
+}
+
+long arch_ptrace(struct task_struct *child, long request, long addr, long data)
+{
+       unsigned long tmp;
+       int ret;
+
+       pr_debug("arch_ptrace(%ld, %ld, %#lx, %#lx)\n",
+                request, child->pid, addr, data);
+
+       pr_debug("ptrace: Enabling monitor mode...\n");
+       __mtdr(DBGREG_DC, __mfdr(DBGREG_DC) | DC_MM | DC_DBE);
+
+       switch (request) {
+       /* Read the word at location addr in the child process */
+       case PTRACE_PEEKTEXT:
+       case PTRACE_PEEKDATA:
+               ret = access_process_vm(child, addr, &tmp, sizeof(tmp), 0);
+               if (ret == sizeof(tmp))
+                       ret = put_user(tmp, (unsigned long __user *)data);
+               else
+                       ret = -EIO;
+               break;
+
+       case PTRACE_PEEKUSR:
+               ret = ptrace_read_user(child, addr,
+                                      (unsigned long __user *)data);
+               break;
+
+       /* Write the word in data at location addr */
+       case PTRACE_POKETEXT:
+       case PTRACE_POKEDATA:
+               ret = access_process_vm(child, addr, &data, sizeof(data), 1);
+               if (ret == sizeof(data))
+                       ret = 0;
+               else
+                       ret = -EIO;
+               break;
+
+       case PTRACE_POKEUSR:
+               ret = ptrace_write_user(child, addr, data);
+               break;
+
+       /* continue and stop at next (return from) syscall */
+       case PTRACE_SYSCALL:
+       /* restart after signal */
+       case PTRACE_CONT:
+               ret = -EIO;
+               if (!valid_signal(data))
+                       break;
+               if (request == PTRACE_SYSCALL)
+                       set_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
+               else
+                       clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
+               child->exit_code = data;
+               /* XXX: Are we sure no breakpoints are active here? */
+               wake_up_process(child);
+               ret = 0;
+               break;
+
+       /*
+        * Make the child exit. Best I can do is send it a
+        * SIGKILL. Perhaps it should be put in the status that it
+        * wants to exit.
+        */
+       case PTRACE_KILL:
+               ret = 0;
+               if (child->exit_state == EXIT_ZOMBIE)
+                       break;
+               child->exit_code = SIGKILL;
+               wake_up_process(child);
+               break;
+
+       /*
+        * execute single instruction.
+        */
+       case PTRACE_SINGLESTEP:
+               ret = -EIO;
+               if (!valid_signal(data))
+                       break;
+               clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
+               ptrace_single_step(child);
+               child->exit_code = data;
+               wake_up_process(child);
+               ret = 0;
+               break;
+
+       /* Detach a process that was attached */
+       case PTRACE_DETACH:
+               ret = ptrace_detach(child, data);
+               break;
+
+       case PTRACE_GETREGS:
+               ret = ptrace_getregs(child, (void __user *)data);
+               break;
+
+       case PTRACE_SETREGS:
+               ret = ptrace_setregs(child, (const void __user *)data);
+               break;
+
+       default:
+               ret = ptrace_request(child, request, addr, data);
+               break;
+       }
+
+       pr_debug("sys_ptrace returning %d (DC = 0x%08lx)\n", ret, __mfdr(DBGREG_DC));
+       return ret;
+}
+
+asmlinkage void syscall_trace(void)
+{
+       pr_debug("syscall_trace called\n");
+       if (!test_thread_flag(TIF_SYSCALL_TRACE))
+               return;
+       if (!(current->ptrace & PT_PTRACED))
+               return;
+
+       pr_debug("syscall_trace: notifying parent\n");
+       /* The 0x80 provides a way for the tracing parent to
+        * distinguish between a syscall stop and SIGTRAP delivery */
+       ptrace_notify(SIGTRAP | ((current->ptrace & PT_TRACESYSGOOD)
+                                ? 0x80 : 0));
+
+       /*
+        * this isn't the same as continuing with a signal, but it
+        * will do for normal use.  strace only continues with a
+        * signal if the stopping signal is not SIGTRAP.  -brl
+        */
+       if (current->exit_code) {
+               pr_debug("syscall_trace: sending signal %d to PID %u\n",
+                        current->exit_code, current->pid);
+               send_sig(current->exit_code, current, 1);
+               current->exit_code = 0;
+       }
+}
+
+asmlinkage void do_debug_priv(struct pt_regs *regs)
+{
+       unsigned long dc, ds;
+       unsigned long die_val;
+
+       ds = __mfdr(DBGREG_DS);
+
+       pr_debug("do_debug_priv: pc = %08lx, ds = %08lx\n", regs->pc, ds);
+
+       if (ds & DS_SSS)
+               die_val = DIE_SSTEP;
+       else
+               die_val = DIE_BREAKPOINT;
+
+       if (notify_die(die_val, regs, 0, SIGTRAP) == NOTIFY_STOP)
+               return;
+
+       if (likely(ds & DS_SSS)) {
+               extern void itlb_miss(void);
+               extern void tlb_miss_common(void);
+               struct thread_info *ti;
+
+               dc = __mfdr(DBGREG_DC);
+               dc &= ~DC_SS;
+               __mtdr(DBGREG_DC, dc);
+
+               ti = current_thread_info();
+               ti->flags |= _TIF_BREAKPOINT;
+
+               /* The TLB miss handlers don't check thread flags */
+               if ((regs->pc >= (unsigned long)&itlb_miss)
+                   && (regs->pc <= (unsigned long)&tlb_miss_common)) {
+                       __mtdr(DBGREG_BWA2A, sysreg_read(RAR_EX));
+                       __mtdr(DBGREG_BWC2A, 0x40000001 | (get_asid() << 1));
+               }
+
+               /*
+                * If we're running in supervisor mode, the breakpoint
+                * will take us where we want directly, no need to
+                * single step.
+                */
+               if ((regs->sr & MODE_MASK) != MODE_SUPERVISOR)
+                       ti->flags |= TIF_SINGLE_STEP;
+       } else {
+               panic("Unable to handle debug trap at pc = %08lx\n",
+                     regs->pc);
+       }
+}
+
+/*
+ * Handle breakpoints, single steps and other debuggy things. To keep
+ * things simple initially, we run with interrupts and exceptions
+ * disabled all the time.
+ */
+asmlinkage void do_debug(struct pt_regs *regs)
+{
+       unsigned long dc, ds;
+
+       ds = __mfdr(DBGREG_DS);
+       pr_debug("do_debug: pc = %08lx, ds = %08lx\n", regs->pc, ds);
+
+       if (test_thread_flag(TIF_BREAKPOINT)) {
+               pr_debug("TIF_BREAKPOINT set\n");
+               /* We're taking care of it */
+               clear_thread_flag(TIF_BREAKPOINT);
+               __mtdr(DBGREG_BWC2A, 0);
+       }
+
+       if (test_thread_flag(TIF_SINGLE_STEP)) {
+               pr_debug("TIF_SINGLE_STEP set, ds = 0x%08lx\n", ds);
+               if (ds & DS_SSS) {
+                       dc = __mfdr(DBGREG_DC);
+                       dc &= ~DC_SS;
+                       __mtdr(DBGREG_DC, dc);
+
+                       clear_thread_flag(TIF_SINGLE_STEP);
+                       ptrace_break(current, regs);
+               }
+       } else {
+               /* regular breakpoint */
+               ptrace_break(current, regs);
+       }
+}
diff --git a/arch/avr32/kernel/semaphore.c b/arch/avr32/kernel/semaphore.c
new file mode 100644 (file)
index 0000000..1e2705a
--- /dev/null
@@ -0,0 +1,148 @@
+/*
+ * AVR32 sempahore implementation.
+ *
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * Based on linux/arch/i386/kernel/semaphore.c
+ *  Copyright (C) 1999 Linus Torvalds
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/sched.h>
+#include <linux/errno.h>
+#include <linux/module.h>
+
+#include <asm/semaphore.h>
+#include <asm/atomic.h>
+
+/*
+ * Semaphores are implemented using a two-way counter:
+ * The "count" variable is decremented for each process
+ * that tries to acquire the semaphore, while the "sleeping"
+ * variable is a count of such acquires.
+ *
+ * Notably, the inline "up()" and "down()" functions can
+ * efficiently test if they need to do any extra work (up
+ * needs to do something only if count was negative before
+ * the increment operation.
+ *
+ * "sleeping" and the contention routine ordering is protected
+ * by the spinlock in the semaphore's waitqueue head.
+ *
+ * Note that these functions are only called when there is
+ * contention on the lock, and as such all this is the
+ * "non-critical" part of the whole semaphore business. The
+ * critical part is the inline stuff in <asm/semaphore.h>
+ * where we want to avoid any extra jumps and calls.
+ */
+
+/*
+ * Logic:
+ *  - only on a boundary condition do we need to care. When we go
+ *    from a negative count to a non-negative, we wake people up.
+ *  - when we go from a non-negative count to a negative do we
+ *    (a) synchronize with the "sleeper" count and (b) make sure
+ *    that we're on the wakeup list before we synchronize so that
+ *    we cannot lose wakeup events.
+ */
+
+void __up(struct semaphore *sem)
+{
+       wake_up(&sem->wait);
+}
+EXPORT_SYMBOL(__up);
+
+void __sched __down(struct semaphore *sem)
+{
+       struct task_struct *tsk = current;
+        DECLARE_WAITQUEUE(wait, tsk);
+        unsigned long flags;
+
+        tsk->state = TASK_UNINTERRUPTIBLE;
+        spin_lock_irqsave(&sem->wait.lock, flags);
+        add_wait_queue_exclusive_locked(&sem->wait, &wait);
+
+        sem->sleepers++;
+        for (;;) {
+                int sleepers = sem->sleepers;
+
+                /*
+                 * Add "everybody else" into it. They aren't
+                 * playing, because we own the spinlock in
+                 * the wait_queue_head.
+                 */
+                if (atomic_add_return(sleepers - 1, &sem->count) >= 0) {
+                        sem->sleepers = 0;
+                        break;
+                }
+                sem->sleepers = 1;      /* us - see -1 above */
+                spin_unlock_irqrestore(&sem->wait.lock, flags);
+
+                schedule();
+
+                spin_lock_irqsave(&sem->wait.lock, flags);
+                tsk->state = TASK_UNINTERRUPTIBLE;
+        }
+        remove_wait_queue_locked(&sem->wait, &wait);
+        wake_up_locked(&sem->wait);
+        spin_unlock_irqrestore(&sem->wait.lock, flags);
+        tsk->state = TASK_RUNNING;
+}
+EXPORT_SYMBOL(__down);
+
+int __sched __down_interruptible(struct semaphore *sem)
+{
+       int retval = 0;
+       struct task_struct *tsk = current;
+        DECLARE_WAITQUEUE(wait, tsk);
+        unsigned long flags;
+
+        tsk->state = TASK_INTERRUPTIBLE;
+        spin_lock_irqsave(&sem->wait.lock, flags);
+        add_wait_queue_exclusive_locked(&sem->wait, &wait);
+
+        sem->sleepers++;
+        for (;;) {
+                int sleepers = sem->sleepers;
+
+               /*
+                * With signals pending, this turns into the trylock
+                * failure case - we won't be sleeping, and we can't
+                * get the lock as it has contention. Just correct the
+                * count and exit.
+                */
+               if (signal_pending(current)) {
+                       retval = -EINTR;
+                       sem->sleepers = 0;
+                       atomic_add(sleepers, &sem->count);
+                       break;
+               }
+
+                /*
+                 * Add "everybody else" into it. They aren't
+                 * playing, because we own the spinlock in
+                 * the wait_queue_head.
+                 */
+                if (atomic_add_return(sleepers - 1, &sem->count) >= 0) {
+                        sem->sleepers = 0;
+                        break;
+                }
+                sem->sleepers = 1;      /* us - see -1 above */
+                spin_unlock_irqrestore(&sem->wait.lock, flags);
+
+                schedule();
+
+                spin_lock_irqsave(&sem->wait.lock, flags);
+                tsk->state = TASK_INTERRUPTIBLE;
+        }
+        remove_wait_queue_locked(&sem->wait, &wait);
+        wake_up_locked(&sem->wait);
+        spin_unlock_irqrestore(&sem->wait.lock, flags);
+
+        tsk->state = TASK_RUNNING;
+       return retval;
+}
+EXPORT_SYMBOL(__down_interruptible);
diff --git a/arch/avr32/kernel/setup.c b/arch/avr32/kernel/setup.c
new file mode 100644 (file)
index 0000000..5d68f3c
--- /dev/null
@@ -0,0 +1,335 @@
+/*
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/clk.h>
+#include <linux/init.h>
+#include <linux/sched.h>
+#include <linux/console.h>
+#include <linux/ioport.h>
+#include <linux/bootmem.h>
+#include <linux/fs.h>
+#include <linux/module.h>
+#include <linux/root_dev.h>
+#include <linux/cpu.h>
+
+#include <asm/sections.h>
+#include <asm/processor.h>
+#include <asm/pgtable.h>
+#include <asm/setup.h>
+#include <asm/sysreg.h>
+
+#include <asm/arch/board.h>
+#include <asm/arch/init.h>
+
+extern int root_mountflags;
+
+/*
+ * Bootloader-provided information about physical memory
+ */
+struct tag_mem_range *mem_phys;
+struct tag_mem_range *mem_reserved;
+struct tag_mem_range *mem_ramdisk;
+
+/*
+ * Initialize loops_per_jiffy as 5000000 (500MIPS).
+ * Better make it too large than too small...
+ */
+struct avr32_cpuinfo boot_cpu_data = {
+       .loops_per_jiffy = 5000000
+};
+EXPORT_SYMBOL(boot_cpu_data);
+
+static char command_line[COMMAND_LINE_SIZE];
+
+/*
+ * Should be more than enough, but if you have a _really_ complex
+ * setup, you might need to increase the size of this...
+ */
+static struct tag_mem_range __initdata mem_range_cache[32];
+static unsigned mem_range_next_free;
+
+/*
+ * Standard memory resources
+ */
+static struct resource mem_res[] = {
+       {
+               .name   = "Kernel code",
+               .start  = 0,
+               .end    = 0,
+               .flags  = IORESOURCE_MEM
+       },
+       {
+               .name   = "Kernel data",
+               .start  = 0,
+               .end    = 0,
+               .flags  = IORESOURCE_MEM,
+       },
+};
+
+#define kernel_code    mem_res[0]
+#define kernel_data    mem_res[1]
+
+/*
+ * Early framebuffer allocation. Works as follows:
+ *   - If fbmem_size is zero, nothing will be allocated or reserved.
+ *   - If fbmem_start is zero when setup_bootmem() is called,
+ *     fbmem_size bytes will be allocated from the bootmem allocator.
+ *   - If fbmem_start is nonzero, an area of size fbmem_size will be
+ *     reserved at the physical address fbmem_start if necessary. If
+ *     the area isn't in a memory region known to the kernel, it will
+ *     be left alone.
+ *
+ * Board-specific code may use these variables to set up platform data
+ * for the framebuffer driver if fbmem_size is nonzero.
+ */
+static unsigned long __initdata fbmem_start;
+static unsigned long __initdata fbmem_size;
+
+/*
+ * "fbmem=xxx[kKmM]" allocates the specified amount of boot memory for
+ * use as framebuffer.
+ *
+ * "fbmem=xxx[kKmM]@yyy[kKmM]" defines a memory region of size xxx and
+ * starting at yyy to be reserved for use as framebuffer.
+ *
+ * The kernel won't verify that the memory region starting at yyy
+ * actually contains usable RAM.
+ */
+static int __init early_parse_fbmem(char *p)
+{
+       fbmem_size = memparse(p, &p);
+       if (*p == '@')
+               fbmem_start = memparse(p, &p);
+       return 0;
+}
+early_param("fbmem", early_parse_fbmem);
+
+static inline void __init resource_init(void)
+{
+       struct tag_mem_range *region;
+
+       kernel_code.start = __pa(init_mm.start_code);
+       kernel_code.end = __pa(init_mm.end_code - 1);
+       kernel_data.start = __pa(init_mm.end_code);
+       kernel_data.end = __pa(init_mm.brk - 1);
+
+       for (region = mem_phys; region; region = region->next) {
+               struct resource *res;
+               unsigned long phys_start, phys_end;
+
+               if (region->size == 0)
+                       continue;
+
+               phys_start = region->addr;
+               phys_end = phys_start + region->size - 1;
+
+               res = alloc_bootmem_low(sizeof(*res));
+               res->name = "System RAM";
+               res->start = phys_start;
+               res->end = phys_end;
+               res->flags = IORESOURCE_MEM | IORESOURCE_BUSY;
+
+               request_resource (&iomem_resource, res);
+
+               if (kernel_code.start >= res->start &&
+                   kernel_code.end <= res->end)
+                       request_resource (res, &kernel_code);
+               if (kernel_data.start >= res->start &&
+                   kernel_data.end <= res->end)
+                       request_resource (res, &kernel_data);
+       }
+}
+
+static int __init parse_tag_core(struct tag *tag)
+{
+       if (tag->hdr.size > 2) {
+               if ((tag->u.core.flags & 1) == 0)
+                       root_mountflags &= ~MS_RDONLY;
+               ROOT_DEV = new_decode_dev(tag->u.core.rootdev);
+       }
+       return 0;
+}
+__tagtable(ATAG_CORE, parse_tag_core);
+
+static int __init parse_tag_mem_range(struct tag *tag,
+                                     struct tag_mem_range **root)
+{
+       struct tag_mem_range *cur, **pprev;
+       struct tag_mem_range *new;
+
+       /*
+        * Ignore zero-sized entries. If we're running standalone, the
+        * SDRAM code may emit such entries if something goes
+        * wrong...
+        */
+       if (tag->u.mem_range.size == 0)
+               return 0;
+
+       /*
+        * Copy the data so the bootmem init code doesn't need to care
+        * about it.
+        */
+       if (mem_range_next_free >=
+           (sizeof(mem_range_cache) / sizeof(mem_range_cache[0])))
+               panic("Physical memory map too complex!\n");
+
+       new = &mem_range_cache[mem_range_next_free++];
+       *new = tag->u.mem_range;
+
+       pprev = root;
+       cur = *root;
+       while (cur) {
+               pprev = &cur->next;
+               cur = cur->next;
+       }
+
+       *pprev = new;
+       new->next = NULL;
+
+       return 0;
+}
+
+static int __init parse_tag_mem(struct tag *tag)
+{
+       return parse_tag_mem_range(tag, &mem_phys);
+}
+__tagtable(ATAG_MEM, parse_tag_mem);
+
+static int __init parse_tag_cmdline(struct tag *tag)
+{
+       strlcpy(saved_command_line, tag->u.cmdline.cmdline, COMMAND_LINE_SIZE);
+       return 0;
+}
+__tagtable(ATAG_CMDLINE, parse_tag_cmdline);
+
+static int __init parse_tag_rdimg(struct tag *tag)
+{
+       return parse_tag_mem_range(tag, &mem_ramdisk);
+}
+__tagtable(ATAG_RDIMG, parse_tag_rdimg);
+
+static int __init parse_tag_clock(struct tag *tag)
+{
+       /*
+        * We'll figure out the clocks by peeking at the system
+        * manager regs directly.
+        */
+       return 0;
+}
+__tagtable(ATAG_CLOCK, parse_tag_clock);
+
+static int __init parse_tag_rsvd_mem(struct tag *tag)
+{
+       return parse_tag_mem_range(tag, &mem_reserved);
+}
+__tagtable(ATAG_RSVD_MEM, parse_tag_rsvd_mem);
+
+static int __init parse_tag_ethernet(struct tag *tag)
+{
+#if 0
+       const struct platform_device *pdev;
+
+       /*
+        * We really need a bus type that supports "classes"...this
+        * will do for now (until we must handle other kinds of
+        * ethernet controllers)
+        */
+       pdev = platform_get_device("macb", tag->u.ethernet.mac_index);
+       if (pdev && pdev->dev.platform_data) {
+               struct eth_platform_data *data = pdev->dev.platform_data;
+
+               data->valid = 1;
+               data->mii_phy_addr = tag->u.ethernet.mii_phy_addr;
+               memcpy(data->hw_addr, tag->u.ethernet.hw_address,
+                      sizeof(data->hw_addr));
+       }
+#endif
+       return 0;
+}
+__tagtable(ATAG_ETHERNET, parse_tag_ethernet);
+
+/*
+ * Scan the tag table for this tag, and call its parse function. The
+ * tag table is built by the linker from all the __tagtable
+ * declarations.
+ */
+static int __init parse_tag(struct tag *tag)
+{
+       extern struct tagtable __tagtable_begin, __tagtable_end;
+       struct tagtable *t;
+
+       for (t = &__tagtable_begin; t < &__tagtable_end; t++)
+               if (tag->hdr.tag == t->tag) {
+                       t->parse(tag);
+                       break;
+               }
+
+       return t < &__tagtable_end;
+}
+
+/*
+ * Parse all tags in the list we got from the boot loader
+ */
+static void __init parse_tags(struct tag *t)
+{
+       for (; t->hdr.tag != ATAG_NONE; t = tag_next(t))
+               if (!parse_tag(t))
+                       printk(KERN_WARNING
+                              "Ignoring unrecognised tag 0x%08x\n",
+                              t->hdr.tag);
+}
+
+void __init setup_arch (char **cmdline_p)
+{
+       struct clk *cpu_clk;
+
+       parse_tags(bootloader_tags);
+
+       setup_processor();
+       setup_platform();
+
+       cpu_clk = clk_get(NULL, "cpu");
+       if (IS_ERR(cpu_clk)) {
+               printk(KERN_WARNING "Warning: Unable to get CPU clock\n");
+       } else {
+               unsigned long cpu_hz = clk_get_rate(cpu_clk);
+
+               /*
+                * Well, duh, but it's probably a good idea to
+                * increment the use count.
+                */
+               clk_enable(cpu_clk);
+
+               boot_cpu_data.clk = cpu_clk;
+               boot_cpu_data.loops_per_jiffy = cpu_hz * 4;
+               printk("CPU: Running at %lu.%03lu MHz\n",
+                      ((cpu_hz + 500) / 1000) / 1000,
+                      ((cpu_hz + 500) / 1000) % 1000);
+       }
+
+       init_mm.start_code = (unsigned long) &_text;
+       init_mm.end_code = (unsigned long) &_etext;
+       init_mm.end_data = (unsigned long) &_edata;
+       init_mm.brk = (unsigned long) &_end;
+
+       strlcpy(command_line, saved_command_line, COMMAND_LINE_SIZE);
+       *cmdline_p = command_line;
+       parse_early_param();
+
+       setup_bootmem();
+
+       board_setup_fbmem(fbmem_start, fbmem_size);
+
+#ifdef CONFIG_VT
+       conswitchp = &dummy_con;
+#endif
+
+       paging_init();
+
+       resource_init();
+}
diff --git a/arch/avr32/kernel/signal.c b/arch/avr32/kernel/signal.c
new file mode 100644 (file)
index 0000000..3309665
--- /dev/null
@@ -0,0 +1,328 @@
+/*
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * Based on linux/arch/sh/kernel/signal.c
+ *  Copyright (C) 1999, 2000  Niibe Yutaka & Kaz Kojima
+ *  Copyright (C) 1991, 1992  Linus Torvalds
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/sched.h>
+#include <linux/mm.h>
+#include <linux/errno.h>
+#include <linux/ptrace.h>
+#include <linux/unistd.h>
+#include <linux/suspend.h>
+
+#include <asm/uaccess.h>
+#include <asm/ucontext.h>
+
+#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
+
+asmlinkage int sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss,
+                              struct pt_regs *regs)
+{
+       return do_sigaltstack(uss, uoss, regs->sp);
+}
+
+struct rt_sigframe
+{
+       struct siginfo info;
+       struct ucontext uc;
+       unsigned long retcode;
+};
+
+static int
+restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc)
+{
+       int err = 0;
+
+#define COPY(x)                err |= __get_user(regs->x, &sc->x)
+       COPY(sr);
+       COPY(pc);
+       COPY(lr);
+       COPY(sp);
+       COPY(r12);
+       COPY(r11);
+       COPY(r10);
+       COPY(r9);
+       COPY(r8);
+       COPY(r7);
+       COPY(r6);
+       COPY(r5);
+       COPY(r4);
+       COPY(r3);
+       COPY(r2);
+       COPY(r1);
+       COPY(r0);
+#undef COPY
+
+       /*
+        * Don't allow anyone to pretend they're running in supervisor
+        * mode or something...
+        */
+       err |= !valid_user_regs(regs);
+
+       return err;
+}
+
+
+asmlinkage int sys_rt_sigreturn(struct pt_regs *regs)
+{
+       struct rt_sigframe __user *frame;
+       sigset_t set;
+
+       frame = (struct rt_sigframe __user *)regs->sp;
+       pr_debug("SIG return: frame = %p\n", frame);
+
+       if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))
+               goto badframe;
+
+       if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
+               goto badframe;
+
+       sigdelsetmask(&set, ~_BLOCKABLE);
+       spin_lock_irq(&current->sighand->siglock);
+       current->blocked = set;
+       recalc_sigpending();
+       spin_unlock_irq(&current->sighand->siglock);
+
+       if (restore_sigcontext(regs, &frame->uc.uc_mcontext))
+               goto badframe;
+
+       pr_debug("Context restored: pc = %08lx, lr = %08lx, sp = %08lx\n",
+                regs->pc, regs->lr, regs->sp);
+
+       return regs->r12;
+
+badframe:
+       force_sig(SIGSEGV, current);
+       return 0;
+}
+
+static int
+setup_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs)
+{
+       int err = 0;
+
+#define COPY(x)                err |= __put_user(regs->x, &sc->x)
+       COPY(sr);
+       COPY(pc);
+       COPY(lr);
+       COPY(sp);
+       COPY(r12);
+       COPY(r11);
+       COPY(r10);
+       COPY(r9);
+       COPY(r8);
+       COPY(r7);
+       COPY(r6);
+       COPY(r5);
+       COPY(r4);
+       COPY(r3);
+       COPY(r2);
+       COPY(r1);
+       COPY(r0);
+#undef COPY
+
+       return err;
+}
+
+static inline void __user *
+get_sigframe(struct k_sigaction *ka, struct pt_regs *regs, int framesize)
+{
+       unsigned long sp = regs->sp;
+
+       if ((ka->sa.sa_flags & SA_ONSTACK) && !sas_ss_flags(sp))
+               sp = current->sas_ss_sp + current->sas_ss_size;
+
+       return (void __user *)((sp - framesize) & ~3);
+}
+
+static int
+setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
+              sigset_t *set, struct pt_regs *regs)
+{
+       struct rt_sigframe __user *frame;
+       int err = 0;
+
+       frame = get_sigframe(ka, regs, sizeof(*frame));
+       err = -EFAULT;
+       if (!access_ok(VERIFY_WRITE, frame, sizeof (*frame)))
+               goto out;
+
+       /*
+        * Set up the return code:
+        *
+        *      mov     r8, __NR_rt_sigreturn
+        *      scall
+        *
+        * Note: This will blow up since we're using a non-executable
+        * stack. Better use SA_RESTORER.
+        */
+#if __NR_rt_sigreturn > 127
+# error __NR_rt_sigreturn must be < 127 to fit in a short mov
+#endif
+       err = __put_user(0x3008d733 | (__NR_rt_sigreturn << 20),
+                        &frame->retcode);
+
+       err |= copy_siginfo_to_user(&frame->info, info);
+
+       /* Set up the ucontext */
+       err |= __put_user(0, &frame->uc.uc_flags);
+       err |= __put_user(NULL, &frame->uc.uc_link);
+       err |= __put_user((void __user *)current->sas_ss_sp,
+                         &frame->uc.uc_stack.ss_sp);
+       err |= __put_user(sas_ss_flags(regs->sp),
+                         &frame->uc.uc_stack.ss_flags);
+       err |= __put_user(current->sas_ss_size,
+                         &frame->uc.uc_stack.ss_size);
+       err |= setup_sigcontext(&frame->uc.uc_mcontext, regs);
+       err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));
+
+       if (err)
+               goto out;
+
+       regs->r12 = sig;
+       regs->r11 = (unsigned long) &frame->info;
+       regs->r10 = (unsigned long) &frame->uc;
+       regs->sp = (unsigned long) frame;
+       if (ka->sa.sa_flags & SA_RESTORER)
+               regs->lr = (unsigned long)ka->sa.sa_restorer;
+       else {
+               printk(KERN_NOTICE "[%s:%d] did not set SA_RESTORER\n",
+                      current->comm, current->pid);
+               regs->lr = (unsigned long) &frame->retcode;
+       }
+
+       pr_debug("SIG deliver [%s:%d]: sig=%d sp=0x%lx pc=0x%lx->0x%p lr=0x%lx\n",
+                current->comm, current->pid, sig, regs->sp,
+                regs->pc, ka->sa.sa_handler, regs->lr);
+
+       regs->pc = (unsigned long) ka->sa.sa_handler;
+
+out:
+       return err;
+}
+
+static inline void restart_syscall(struct pt_regs *regs)
+{
+       if (regs->r12 == -ERESTART_RESTARTBLOCK)
+               regs->r8 = __NR_restart_syscall;
+       else
+               regs->r12 = regs->r12_orig;
+       regs->pc -= 2;
+}
+
+static inline void
+handle_signal(unsigned long sig, struct k_sigaction *ka, siginfo_t *info,
+             sigset_t *oldset, struct pt_regs *regs, int syscall)
+{
+       int ret;
+
+       /*
+        * Set up the stack frame
+        */
+       ret = setup_rt_frame(sig, ka, info, oldset, regs);
+
+       /*
+        * Check that the resulting registers are sane
+        */
+       ret |= !valid_user_regs(regs);
+
+       /*
+        * Block the signal if we were unsuccessful.
+        */
+       if (ret != 0 || !(ka->sa.sa_flags & SA_NODEFER)) {
+               spin_lock_irq(&current->sighand->siglock);
+               sigorsets(&current->blocked, &current->blocked,
+                         &ka->sa.sa_mask);
+               sigaddset(&current->blocked, sig);
+               recalc_sigpending();
+               spin_unlock_irq(&current->sighand->siglock);
+       }
+
+       if (ret == 0)
+               return;
+
+       force_sigsegv(sig, current);
+}
+
+/*
+ * Note that 'init' is a special process: it doesn't get signals it
+ * doesn't want to handle. Thus you cannot kill init even with a
+ * SIGKILL even by mistake.
+ */
+int do_signal(struct pt_regs *regs, sigset_t *oldset, int syscall)
+{
+       siginfo_t info;
+       int signr;
+       struct k_sigaction ka;
+
+       /*
+        * We want the common case to go fast, which is why we may in
+        * certain cases get here from kernel mode. Just return
+        * without doing anything if so.
+        */
+       if (!user_mode(regs))
+               return 0;
+
+       if (try_to_freeze()) {
+               signr = 0;
+               if (!signal_pending(current))
+                       goto no_signal;
+       }
+
+       if (test_thread_flag(TIF_RESTORE_SIGMASK))
+               oldset = &current->saved_sigmask;
+       else if (!oldset)
+               oldset = &current->blocked;
+
+       signr = get_signal_to_deliver(&info, &ka, regs, NULL);
+no_signal:
+       if (syscall) {
+               switch (regs->r12) {
+               case -ERESTART_RESTARTBLOCK:
+               case -ERESTARTNOHAND:
+                       if (signr > 0) {
+                               regs->r12 = -EINTR;
+                               break;
+                       }
+                       /* fall through */
+               case -ERESTARTSYS:
+                       if (signr > 0 && !(ka.sa.sa_flags & SA_RESTART)) {
+                               regs->r12 = -EINTR;
+                               break;
+                       }
+                       /* fall through */
+               case -ERESTARTNOINTR:
+                       restart_syscall(regs);
+               }
+       }
+
+       if (signr == 0) {
+               /* No signal to deliver -- put the saved sigmask back */
+               if (test_thread_flag(TIF_RESTORE_SIGMASK)) {
+                       clear_thread_flag(TIF_RESTORE_SIGMASK);
+                       sigprocmask(SIG_SETMASK, &current->saved_sigmask, NULL);
+               }
+               return 0;
+       }
+
+       handle_signal(signr, &ka, &info, oldset, regs, syscall);
+       return 1;
+}
+
+asmlinkage void do_notify_resume(struct pt_regs *regs, struct thread_info *ti)
+{
+       int syscall = 0;
+
+       if ((sysreg_read(SR) & MODE_MASK) == MODE_SUPERVISOR)
+               syscall = 1;
+
+       if (ti->flags & (_TIF_SIGPENDING | _TIF_RESTORE_SIGMASK))
+               do_signal(regs, &current->blocked, syscall);
+}
diff --git a/arch/avr32/kernel/switch_to.S b/arch/avr32/kernel/switch_to.S
new file mode 100644 (file)
index 0000000..a48d046
--- /dev/null
@@ -0,0 +1,35 @@
+/*
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <asm/sysreg.h>
+
+       .text
+       .global __switch_to
+       .type   __switch_to, @function
+
+       /* Switch thread context from "prev" to "next", returning "last"
+        *   r12 :      prev
+        *   r11 :      &prev->thread + 1
+        *   r10 :      &next->thread
+        */
+__switch_to:
+       stm     --r11, r0,r1,r2,r3,r4,r5,r6,r7,sp,lr
+       mfsr    r9, SYSREG_SR
+       st.w    --r11, r9
+       ld.w    r8, r10++
+       /*
+        * schedule() may have been called from a mode with a different
+        * set of registers. Make sure we don't lose anything here.
+        */
+       pushm   r10,r12
+       mtsr    SYSREG_SR, r8
+       frs                     /* flush the return stack */
+       sub     pc, -2          /* flush the pipeline */
+       popm    r10,r12
+       ldm     r10++, r0,r1,r2,r3,r4,r5,r6,r7,sp,pc
+       .size   __switch_to, . - __switch_to
diff --git a/arch/avr32/kernel/sys_avr32.c b/arch/avr32/kernel/sys_avr32.c
new file mode 100644 (file)
index 0000000..6ec5693
--- /dev/null
@@ -0,0 +1,51 @@
+/*
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/errno.h>
+#include <linux/fs.h>
+#include <linux/file.h>
+#include <linux/mm.h>
+#include <linux/unistd.h>
+
+#include <asm/mman.h>
+#include <asm/uaccess.h>
+
+asmlinkage int sys_pipe(unsigned long __user *filedes)
+{
+       int fd[2];
+       int error;
+
+       error = do_pipe(fd);
+       if (!error) {
+               if (copy_to_user(filedes, fd, sizeof(fd)))
+                       error = -EFAULT;
+       }
+       return error;
+}
+
+asmlinkage long sys_mmap2(unsigned long addr, unsigned long len,
+                         unsigned long prot, unsigned long flags,
+                         unsigned long fd, off_t offset)
+{
+       int error = -EBADF;
+       struct file *file = NULL;
+
+       flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
+       if (!(flags & MAP_ANONYMOUS)) {
+               file = fget(fd);
+               if (!file)
+                       return error;
+       }
+
+       down_write(&current->mm->mmap_sem);
+       error = do_mmap_pgoff(file, addr, len, prot, flags, offset);
+       up_write(&current->mm->mmap_sem);
+
+       if (file)
+               fput(file);
+       return error;
+}
diff --git a/arch/avr32/kernel/syscall-stubs.S b/arch/avr32/kernel/syscall-stubs.S
new file mode 100644 (file)
index 0000000..7589a9b
--- /dev/null
@@ -0,0 +1,102 @@
+/*
+ * Copyright (C) 2005-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+/*
+ * Stubs for syscalls that require access to pt_regs or that take more
+ * than five parameters.
+ */
+
+#define ARG6   r3
+
+       .text
+       .global __sys_rt_sigsuspend
+       .type   __sys_rt_sigsuspend,@function
+__sys_rt_sigsuspend:
+       mov     r10, sp
+       rjmp    sys_rt_sigsuspend
+
+       .global __sys_sigaltstack
+       .type   __sys_sigaltstack,@function
+__sys_sigaltstack:
+       mov     r10, sp
+       rjmp    sys_sigaltstack
+
+       .global __sys_rt_sigreturn
+       .type   __sys_rt_sigreturn,@function
+__sys_rt_sigreturn:
+       mov     r12, sp
+       rjmp    sys_rt_sigreturn
+
+       .global __sys_fork
+       .type   __sys_fork,@function
+__sys_fork:
+       mov     r12, sp
+       rjmp    sys_fork
+
+       .global __sys_clone
+       .type   __sys_clone,@function
+__sys_clone:
+       mov     r8, sp
+       rjmp    sys_clone
+
+       .global __sys_vfork
+       .type   __sys_vfork,@function
+__sys_vfork:
+       mov     r12, sp
+       rjmp    sys_vfork
+
+       .global __sys_execve
+       .type   __sys_execve,@function
+__sys_execve:
+       mov     r9, sp
+       rjmp    sys_execve
+
+       .global __sys_mmap2
+       .type   __sys_mmap2,@function
+__sys_mmap2:
+       pushm   lr
+       st.w    --sp, ARG6
+       rcall   sys_mmap2
+       sub     sp, -4
+       popm    pc
+
+       .global __sys_sendto
+       .type   __sys_sendto,@function
+__sys_sendto:
+       pushm   lr
+       st.w    --sp, ARG6
+       rcall   sys_sendto
+       sub     sp, -4
+       popm    pc
+
+       .global __sys_recvfrom
+       .type   __sys_recvfrom,@function
+__sys_recvfrom:
+       pushm   lr
+       st.w    --sp, ARG6
+       rcall   sys_recvfrom
+       sub     sp, -4
+       popm    pc
+
+       .global __sys_pselect6
+       .type   __sys_pselect6,@function
+__sys_pselect6:
+       pushm   lr
+       st.w    --sp, ARG6
+       rcall   sys_pselect6
+       sub     sp, -4
+       popm    pc
+
+       .global __sys_splice
+       .type   __sys_splice,@function
+__sys_splice:
+       pushm   lr
+       st.w    --sp, ARG6
+       rcall   sys_splice
+       sub     sp, -4
+       popm    pc
diff --git a/arch/avr32/kernel/syscall_table.S b/arch/avr32/kernel/syscall_table.S
new file mode 100644 (file)
index 0000000..63b2069
--- /dev/null
@@ -0,0 +1,289 @@
+/*
+ * AVR32 system call table
+ *
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#if !defined(CONFIG_NFSD) && !defined(CONFIG_NFSD_MODULE)
+#define sys_nfsservctl sys_ni_syscall
+#endif
+
+#if !defined(CONFIG_SYSV_IPC)
+# define sys_ipc       sys_ni_syscall
+#endif
+
+       .section .rodata,"a",@progbits
+       .type   sys_call_table,@object
+       .global sys_call_table
+       .align  2
+sys_call_table:
+       .long   sys_restart_syscall
+       .long   sys_exit
+       .long   __sys_fork
+       .long   sys_read
+       .long   sys_write
+       .long   sys_open                /* 5 */
+       .long   sys_close
+       .long   sys_umask
+       .long   sys_creat
+       .long   sys_link
+       .long   sys_unlink              /* 10 */
+       .long   __sys_execve
+       .long   sys_chdir
+       .long   sys_time
+       .long   sys_mknod
+       .long   sys_chmod               /* 15 */
+       .long   sys_chown
+       .long   sys_lchown
+       .long   sys_lseek
+       .long   sys_llseek
+       .long   sys_getpid              /* 20 */
+       .long   sys_mount
+       .long   sys_umount
+       .long   sys_setuid
+       .long   sys_getuid
+       .long   sys_stime               /* 25 */
+       .long   sys_ptrace
+       .long   sys_alarm
+       .long   sys_pause
+       .long   sys_utime
+       .long   sys_newstat             /* 30 */
+       .long   sys_newfstat
+       .long   sys_newlstat
+       .long   sys_access
+       .long   sys_chroot
+       .long   sys_sync                /* 35 */
+       .long   sys_fsync
+       .long   sys_kill
+       .long   sys_rename
+       .long   sys_mkdir
+       .long   sys_rmdir               /* 40 */
+       .long   sys_dup
+       .long   sys_pipe
+       .long   sys_times
+       .long   __sys_clone
+       .long   sys_brk                 /* 45 */
+       .long   sys_setgid
+       .long   sys_getgid
+       .long   sys_getcwd
+       .long   sys_geteuid
+       .long   sys_getegid             /* 50 */
+       .long   sys_acct
+       .long   sys_setfsuid
+       .long   sys_setfsgid
+       .long   sys_ioctl
+       .long   sys_fcntl               /* 55 */
+       .long   sys_setpgid
+       .long   sys_mremap
+       .long   sys_setresuid
+       .long   sys_getresuid
+       .long   sys_setreuid            /* 60 */
+       .long   sys_setregid
+       .long   sys_ustat
+       .long   sys_dup2
+       .long   sys_getppid
+       .long   sys_getpgrp             /* 65 */
+       .long   sys_setsid
+       .long   sys_rt_sigaction
+       .long   __sys_rt_sigreturn
+       .long   sys_rt_sigprocmask
+       .long   sys_rt_sigpending       /* 70 */
+       .long   sys_rt_sigtimedwait
+       .long   sys_rt_sigqueueinfo
+       .long   __sys_rt_sigsuspend
+       .long   sys_sethostname
+       .long   sys_setrlimit           /* 75 */
+       .long   sys_getrlimit
+       .long   sys_getrusage
+       .long   sys_gettimeofday
+       .long   sys_settimeofday
+       .long   sys_getgroups           /* 80 */
+       .long   sys_setgroups
+       .long   sys_select
+       .long   sys_symlink
+       .long   sys_fchdir
+       .long   sys_readlink            /* 85 */
+       .long   sys_pread64
+       .long   sys_pwrite64
+       .long   sys_swapon
+       .long   sys_reboot
+       .long   __sys_mmap2             /* 90 */
+       .long   sys_munmap
+       .long   sys_truncate
+       .long   sys_ftruncate
+       .long   sys_fchmod
+       .long   sys_fchown              /* 95 */
+       .long   sys_getpriority
+       .long   sys_setpriority
+       .long   sys_wait4
+       .long   sys_statfs
+       .long   sys_fstatfs             /* 100 */
+       .long   sys_vhangup
+       .long   __sys_sigaltstack
+       .long   sys_syslog
+       .long   sys_setitimer
+       .long   sys_getitimer           /* 105 */
+       .long   sys_swapoff
+       .long   sys_sysinfo
+       .long   sys_ipc
+       .long   sys_sendfile
+       .long   sys_setdomainname       /* 110 */
+       .long   sys_newuname
+       .long   sys_adjtimex
+       .long   sys_mprotect
+       .long   __sys_vfork
+       .long   sys_init_module         /* 115 */
+       .long   sys_delete_module
+       .long   sys_quotactl
+       .long   sys_getpgid
+       .long   sys_bdflush
+       .long   sys_sysfs               /* 120 */
+       .long   sys_personality
+       .long   sys_ni_syscall          /* reserved for afs_syscall */
+       .long   sys_getdents
+       .long   sys_flock
+       .long   sys_msync               /* 125 */
+       .long   sys_readv
+       .long   sys_writev
+       .long   sys_getsid
+       .long   sys_fdatasync
+       .long   sys_sysctl              /* 130 */
+       .long   sys_mlock
+       .long   sys_munlock
+       .long   sys_mlockall
+       .long   sys_munlockall
+       .long   sys_sched_setparam              /* 135 */
+       .long   sys_sched_getparam
+       .long   sys_sched_setscheduler
+       .long   sys_sched_getscheduler
+       .long   sys_sched_yield
+       .long   sys_sched_get_priority_max      /* 140 */
+       .long   sys_sched_get_priority_min
+       .long   sys_sched_rr_get_interval
+       .long   sys_nanosleep
+       .long   sys_poll
+       .long   sys_nfsservctl          /* 145 */
+       .long   sys_setresgid
+       .long   sys_getresgid
+       .long   sys_prctl
+       .long   sys_socket
+       .long   sys_bind                /* 150 */
+       .long   sys_connect
+       .long   sys_listen
+       .long   sys_accept
+       .long   sys_getsockname
+       .long   sys_getpeername         /* 155 */
+       .long   sys_socketpair
+       .long   sys_send
+       .long   sys_recv
+       .long   __sys_sendto
+       .long   __sys_recvfrom          /* 160 */
+       .long   sys_shutdown
+       .long   sys_setsockopt
+       .long   sys_getsockopt
+       .long   sys_sendmsg
+       .long   sys_recvmsg             /* 165 */
+       .long   sys_truncate64
+       .long   sys_ftruncate64
+       .long   sys_stat64
+       .long   sys_lstat64
+       .long   sys_fstat64             /* 170 */
+       .long   sys_pivot_root
+       .long   sys_mincore
+       .long   sys_madvise
+       .long   sys_getdents64
+       .long   sys_fcntl64             /* 175 */
+       .long   sys_gettid
+       .long   sys_readahead
+       .long   sys_setxattr
+       .long   sys_lsetxattr
+       .long   sys_fsetxattr           /* 180 */
+       .long   sys_getxattr
+       .long   sys_lgetxattr
+       .long   sys_fgetxattr
+       .long   sys_listxattr
+       .long   sys_llistxattr          /* 185 */
+       .long   sys_flistxattr
+       .long   sys_removexattr
+       .long   sys_lremovexattr
+       .long   sys_fremovexattr
+       .long   sys_tkill               /* 190 */
+       .long   sys_sendfile64
+       .long   sys_futex
+       .long   sys_sched_setaffinity
+       .long   sys_sched_getaffinity
+       .long   sys_capget              /* 195 */
+       .long   sys_capset
+       .long   sys_io_setup
+       .long   sys_io_destroy
+       .long   sys_io_getevents
+       .long   sys_io_submit           /* 200 */
+       .long   sys_io_cancel
+       .long   sys_fadvise64
+       .long   sys_exit_group
+       .long   sys_lookup_dcookie
+       .long   sys_epoll_create        /* 205 */
+       .long   sys_epoll_ctl
+       .long   sys_epoll_wait
+       .long   sys_remap_file_pages
+       .long   sys_set_tid_address
+       .long   sys_timer_create        /* 210 */
+       .long   sys_timer_settime
+       .long   sys_timer_gettime
+       .long   sys_timer_getoverrun
+       .long   sys_timer_delete
+       .long   sys_clock_settime       /* 215 */
+       .long   sys_clock_gettime
+       .long   sys_clock_getres
+       .long   sys_clock_nanosleep
+       .long   sys_statfs64
+       .long   sys_fstatfs64           /* 220 */
+       .long   sys_tgkill
+       .long   sys_ni_syscall          /* reserved for TUX */
+       .long   sys_utimes
+       .long   sys_fadvise64_64
+       .long   sys_cacheflush          /* 225 */
+       .long   sys_ni_syscall          /* sys_vserver */
+       .long   sys_mq_open
+       .long   sys_mq_unlink
+       .long   sys_mq_timedsend
+       .long   sys_mq_timedreceive     /* 230 */
+       .long   sys_mq_notify
+       .long   sys_mq_getsetattr
+       .long   sys_kexec_load
+       .long   sys_waitid
+       .long   sys_add_key             /* 235 */
+       .long   sys_request_key
+       .long   sys_keyctl
+       .long   sys_ioprio_set
+       .long   sys_ioprio_get
+       .long   sys_inotify_init        /* 240 */
+       .long   sys_inotify_add_watch
+       .long   sys_inotify_rm_watch
+       .long   sys_openat
+       .long   sys_mkdirat
+       .long   sys_mknodat             /* 245 */
+       .long   sys_fchownat
+       .long   sys_futimesat
+       .long   sys_fstatat64
+       .long   sys_unlinkat
+       .long   sys_renameat            /* 250 */
+       .long   sys_linkat
+       .long   sys_symlinkat
+       .long   sys_readlinkat
+       .long   sys_fchmodat
+       .long   sys_faccessat           /* 255 */
+       .long   __sys_pselect6
+       .long   sys_ppoll
+       .long   sys_unshare
+       .long   sys_set_robust_list
+       .long   sys_get_robust_list     /* 260 */
+       .long   __sys_splice
+       .long   sys_sync_file_range
+       .long   sys_tee
+       .long   sys_vmsplice
+       .long   sys_ni_syscall          /* r8 is saturated at nr_syscalls */
diff --git a/arch/avr32/kernel/time.c b/arch/avr32/kernel/time.c
new file mode 100644 (file)
index 0000000..b0e6b58
--- /dev/null
@@ -0,0 +1,238 @@
+/*
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * Based on MIPS implementation arch/mips/kernel/time.c
+ *   Copyright 2001 MontaVista Software Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/clk.h>
+#include <linux/clocksource.h>
+#include <linux/time.h>
+#include <linux/module.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/kernel_stat.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/profile.h>
+#include <linux/sysdev.h>
+
+#include <asm/div64.h>
+#include <asm/sysreg.h>
+#include <asm/io.h>
+#include <asm/sections.h>
+
+static cycle_t read_cycle_count(void)
+{
+       return (cycle_t)sysreg_read(COUNT);
+}
+
+static struct clocksource clocksource_avr32 = {
+       .name           = "avr32",
+       .rating         = 350,
+       .read           = read_cycle_count,
+       .mask           = CLOCKSOURCE_MASK(32),
+       .shift          = 16,
+       .is_continuous  = 1,
+};
+
+/*
+ * By default we provide the null RTC ops
+ */
+static unsigned long null_rtc_get_time(void)
+{
+       return mktime(2004, 1, 1, 0, 0, 0);
+}
+
+static int null_rtc_set_time(unsigned long sec)
+{
+       return 0;
+}
+
+static unsigned long (*rtc_get_time)(void) = null_rtc_get_time;
+static int (*rtc_set_time)(unsigned long) = null_rtc_set_time;
+
+/* how many counter cycles in a jiffy? */
+static unsigned long cycles_per_jiffy;
+
+/* cycle counter value at the previous timer interrupt */
+static unsigned int timerhi, timerlo;
+
+/* the count value for the next timer interrupt */
+static unsigned int expirelo;
+
+static void avr32_timer_ack(void)
+{
+       unsigned int count;
+
+       /* Ack this timer interrupt and set the next one */
+       expirelo += cycles_per_jiffy;
+       if (expirelo == 0) {
+               printk(KERN_DEBUG "expirelo == 0\n");
+               sysreg_write(COMPARE, expirelo + 1);
+       } else {
+               sysreg_write(COMPARE, expirelo);
+       }
+
+       /* Check to see if we have missed any timer interrupts */
+       count = sysreg_read(COUNT);
+       if ((count - expirelo) < 0x7fffffff) {
+               expirelo = count + cycles_per_jiffy;
+               sysreg_write(COMPARE, expirelo);
+       }
+}
+
+static unsigned int avr32_hpt_read(void)
+{
+       return sysreg_read(COUNT);
+}
+
+/*
+ * Taken from MIPS c0_hpt_timer_init().
+ *
+ * Why is it so complicated, and what is "count"?  My assumption is
+ * that `count' specifies the "reference cycle", i.e. the cycle since
+ * reset that should mean "zero". The reason COUNT is written twice is
+ * probably to make sure we don't get any timer interrupts while we
+ * are messing with the counter.
+ */
+static void avr32_hpt_init(unsigned int count)
+{
+       count = sysreg_read(COUNT) - count;
+       expirelo = (count / cycles_per_jiffy + 1) * cycles_per_jiffy;
+       sysreg_write(COUNT, expirelo - cycles_per_jiffy);
+       sysreg_write(COMPARE, expirelo);
+       sysreg_write(COUNT, count);
+}
+
+/*
+ * Scheduler clock - returns current time in nanosec units.
+ */
+unsigned long long sched_clock(void)
+{
+       /* There must be better ways...? */
+       return (unsigned long long)jiffies * (1000000000 / HZ);
+}
+
+/*
+ * local_timer_interrupt() does profiling and process accounting on a
+ * per-CPU basis.
+ *
+ * In UP mode, it is invoked from the (global) timer_interrupt.
+ */
+static void local_timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+{
+       if (current->pid)
+               profile_tick(CPU_PROFILING, regs);
+       update_process_times(user_mode(regs));
+}
+
+static irqreturn_t
+timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+{
+       unsigned int count;
+
+       /* ack timer interrupt and try to set next interrupt */
+       count = avr32_hpt_read();
+       avr32_timer_ack();
+
+       /* Update timerhi/timerlo for intra-jiffy calibration */
+       timerhi += count < timerlo;     /* Wrap around */
+       timerlo = count;
+
+       /*
+        * Call the generic timer interrupt handler
+        */
+       write_seqlock(&xtime_lock);
+       do_timer(regs);
+       write_sequnlock(&xtime_lock);
+
+       /*
+        * In UP mode, we call local_timer_interrupt() to do profiling
+        * and process accounting.
+        *
+        * SMP is not supported yet.
+        */
+       local_timer_interrupt(irq, dev_id, regs);
+
+       return IRQ_HANDLED;
+}
+
+static struct irqaction timer_irqaction = {
+       .handler        = timer_interrupt,
+       .flags          = IRQF_DISABLED,
+       .name           = "timer",
+};
+
+void __init time_init(void)
+{
+       unsigned long mult, shift, count_hz;
+       int ret;
+
+       xtime.tv_sec = rtc_get_time();
+       xtime.tv_nsec = 0;
+
+       set_normalized_timespec(&wall_to_monotonic,
+                               -xtime.tv_sec, -xtime.tv_nsec);
+
+       printk("Before time_init: count=%08lx, compare=%08lx\n",
+              (unsigned long)sysreg_read(COUNT),
+              (unsigned long)sysreg_read(COMPARE));
+
+       count_hz = clk_get_rate(boot_cpu_data.clk);
+       shift = clocksource_avr32.shift;
+       mult = clocksource_hz2mult(count_hz, shift);
+       clocksource_avr32.mult = mult;
+
+       printk("Cycle counter: mult=%lu, shift=%lu\n", mult, shift);
+
+       {
+               u64 tmp;
+
+               tmp = TICK_NSEC;
+               tmp <<= shift;
+               tmp += mult / 2;
+               do_div(tmp, mult);
+
+               cycles_per_jiffy = tmp;
+       }
+
+       /* This sets up the high precision timer for the first interrupt. */
+       avr32_hpt_init(avr32_hpt_read());
+
+       printk("After time_init: count=%08lx, compare=%08lx\n",
+              (unsigned long)sysreg_read(COUNT),
+              (unsigned long)sysreg_read(COMPARE));
+
+       ret = clocksource_register(&clocksource_avr32);
+       if (ret)
+               printk(KERN_ERR
+                      "timer: could not register clocksource: %d\n", ret);
+
+       ret = setup_irq(0, &timer_irqaction);
+       if (ret)
+               printk("timer: could not request IRQ 0: %d\n", ret);
+}
+
+static struct sysdev_class timer_class = {
+       set_kset_name("timer"),
+};
+
+static struct sys_device timer_device = {
+       .id     = 0,
+       .cls    = &timer_class,
+};
+
+static int __init init_timer_sysfs(void)
+{
+       int err = sysdev_class_register(&timer_class);
+       if (!err)
+               err = sysdev_register(&timer_device);
+       return err;
+}
+
+device_initcall(init_timer_sysfs);
diff --git a/arch/avr32/kernel/traps.c b/arch/avr32/kernel/traps.c
new file mode 100644 (file)
index 0000000..7e803f4
--- /dev/null
@@ -0,0 +1,425 @@
+/*
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#undef DEBUG
+#include <linux/sched.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/kallsyms.h>
+#include <linux/notifier.h>
+
+#include <asm/traps.h>
+#include <asm/sysreg.h>
+#include <asm/addrspace.h>
+#include <asm/ocd.h>
+#include <asm/mmu_context.h>
+#include <asm/uaccess.h>
+
+static void dump_mem(const char *str, unsigned long bottom, unsigned long top)
+{
+       unsigned long p;
+       int i;
+
+       printk("%s(0x%08lx to 0x%08lx)\n", str, bottom, top);
+
+       for (p = bottom & ~31; p < top; ) {
+               printk("%04lx: ", p & 0xffff);
+
+               for (i = 0; i < 8; i++, p += 4) {
+                       unsigned int val;
+
+                       if (p < bottom || p >= top)
+                               printk("         ");
+                       else {
+                               if (__get_user(val, (unsigned int __user *)p)) {
+                                       printk("\n");
+                                       goto out;
+                               }
+                               printk("%08x ", val);
+                       }
+               }
+               printk("\n");
+       }
+
+out:
+       return;
+}
+
+#ifdef CONFIG_FRAME_POINTER
+static inline void __show_trace(struct task_struct *tsk, unsigned long *sp,
+                               struct pt_regs *regs)
+{
+       unsigned long __user *fp;
+       unsigned long __user *last_fp = NULL;
+
+       if (regs) {
+               fp = (unsigned long __user *)regs->r7;
+       } else if (tsk == current) {
+               register unsigned long __user *real_fp __asm__("r7");
+               fp = real_fp;
+       } else {
+               fp = (unsigned long __user *)tsk->thread.cpu_context.r7;
+       }
+
+       /*
+        * Walk the stack until (a) we get an exception, (b) the frame
+        * pointer becomes zero, or (c) the frame pointer gets stuck
+        * at the same value.
+        */
+       while (fp && fp != last_fp) {
+               unsigned long lr, new_fp = 0;
+
+               last_fp = fp;
+               if (__get_user(lr, fp))
+                       break;
+               if (fp && __get_user(new_fp, fp + 1))
+                       break;
+               fp = (unsigned long __user *)new_fp;
+
+               printk(" [<%08lx>] ", lr);
+               print_symbol("%s\n", lr);
+       }
+       printk("\n");
+}
+#else
+static inline void __show_trace(struct task_struct *tsk, unsigned long *sp,
+                               struct pt_regs *regs)
+{
+       unsigned long addr;
+
+       while (!kstack_end(sp)) {
+               addr = *sp++;
+               if (kernel_text_address(addr)) {
+                       printk(" [<%08lx>] ", addr);
+                       print_symbol("%s\n", addr);
+               }
+       }
+}
+#endif
+
+void show_trace(struct task_struct *tsk, unsigned long *sp,
+                      struct pt_regs *regs)
+{
+       if (regs &&
+           (((regs->sr & MODE_MASK) == MODE_EXCEPTION) ||
+            ((regs->sr & MODE_MASK) == MODE_USER)))
+               return;
+
+       printk ("Call trace:");
+#ifdef CONFIG_KALLSYMS
+       printk("\n");
+#endif
+
+       __show_trace(tsk, sp, regs);
+       printk("\n");
+}
+
+void show_stack(struct task_struct *tsk, unsigned long *sp)
+{
+       unsigned long stack;
+
+       if (!tsk)
+               tsk = current;
+       if (sp == 0) {
+               if (tsk == current) {
+                       register unsigned long *real_sp __asm__("sp");
+                       sp = real_sp;
+               } else {
+                       sp = (unsigned long *)tsk->thread.cpu_context.ksp;
+               }
+       }
+
+       stack = (unsigned long)sp;
+       dump_mem("Stack: ", stack,
+                THREAD_SIZE + (unsigned long)tsk->thread_info);
+       show_trace(tsk, sp, NULL);
+}
+
+void dump_stack(void)
+{
+       show_stack(NULL, NULL);
+}
+EXPORT_SYMBOL(dump_stack);
+
+ATOMIC_NOTIFIER_HEAD(avr32_die_chain);
+
+int register_die_notifier(struct notifier_block *nb)
+{
+       pr_debug("register_die_notifier: %p\n", nb);
+
+       return atomic_notifier_chain_register(&avr32_die_chain, nb);
+}
+EXPORT_SYMBOL(register_die_notifier);
+
+int unregister_die_notifier(struct notifier_block *nb)
+{
+       return atomic_notifier_chain_unregister(&avr32_die_chain, nb);
+}
+EXPORT_SYMBOL(unregister_die_notifier);
+
+static DEFINE_SPINLOCK(die_lock);
+
+void __die(const char *str, struct pt_regs *regs, unsigned long err,
+          const char *file, const char *func, unsigned long line)
+{
+       struct task_struct *tsk = current;
+       static int die_counter;
+
+       console_verbose();
+       spin_lock_irq(&die_lock);
+       bust_spinlocks(1);
+
+       printk(KERN_ALERT "%s", str);
+       if (file && func)
+               printk(" in %s:%s, line %ld", file, func, line);
+       printk("[#%d]:\n", ++die_counter);
+       print_modules();
+       show_regs(regs);
+       printk("Process %s (pid: %d, stack limit = 0x%p)\n",
+              tsk->comm, tsk->pid, tsk->thread_info + 1);
+
+       if (!user_mode(regs) || in_interrupt()) {
+               dump_mem("Stack: ", regs->sp,
+                        THREAD_SIZE + (unsigned long)tsk->thread_info);
+       }
+
+       bust_spinlocks(0);
+       spin_unlock_irq(&die_lock);
+       do_exit(SIGSEGV);
+}
+
+void __die_if_kernel(const char *str, struct pt_regs *regs, unsigned long err,
+                    const char *file, const char *func, unsigned long line)
+{
+       if (!user_mode(regs))
+               __die(str, regs, err, file, func, line);
+}
+
+asmlinkage void do_nmi(unsigned long ecr, struct pt_regs *regs)
+{
+#ifdef CONFIG_SUBARCH_AVR32B
+       /*
+        * The exception entry always saves RSR_EX. For NMI, this is
+        * wrong; it should be RSR_NMI
+        */
+       regs->sr = sysreg_read(RSR_NMI);
+#endif
+
+       printk("NMI taken!!!!\n");
+       die("NMI", regs, ecr);
+       BUG();
+}
+
+asmlinkage void do_critical_exception(unsigned long ecr, struct pt_regs *regs)
+{
+       printk("Unable to handle critical exception %lu at pc = %08lx!\n",
+              ecr, regs->pc);
+       die("Oops", regs, ecr);
+       BUG();
+}
+
+asmlinkage void do_address_exception(unsigned long ecr, struct pt_regs *regs)
+{
+       siginfo_t info;
+
+       die_if_kernel("Oops: Address exception in kernel mode", regs, ecr);
+
+#ifdef DEBUG
+       if (ecr == ECR_ADDR_ALIGN_X)
+               pr_debug("Instruction Address Exception at pc = %08lx\n",
+                        regs->pc);
+       else if (ecr == ECR_ADDR_ALIGN_R)
+               pr_debug("Data Address Exception (Read) at pc = %08lx\n",
+                        regs->pc);
+       else if (ecr == ECR_ADDR_ALIGN_W)
+               pr_debug("Data Address Exception (Write) at pc = %08lx\n",
+                        regs->pc);
+       else
+               BUG();
+
+       show_regs(regs);
+#endif
+
+       info.si_signo = SIGBUS;
+       info.si_errno = 0;
+       info.si_code = BUS_ADRALN;
+       info.si_addr = (void __user *)regs->pc;
+
+       force_sig_info(SIGBUS, &info, current);
+}
+
+/* This way of handling undefined instructions is stolen from ARM */
+static LIST_HEAD(undef_hook);
+static spinlock_t undef_lock = SPIN_LOCK_UNLOCKED;
+
+void register_undef_hook(struct undef_hook *hook)
+{
+       spin_lock_irq(&undef_lock);
+       list_add(&hook->node, &undef_hook);
+       spin_unlock_irq(&undef_lock);
+}
+
+void unregister_undef_hook(struct undef_hook *hook)
+{
+       spin_lock_irq(&undef_lock);
+       list_del(&hook->node);
+       spin_unlock_irq(&undef_lock);
+}
+
+static int do_cop_absent(u32 insn)
+{
+       int cop_nr;
+       u32 cpucr;
+       if ( (insn & 0xfdf00000) == 0xf1900000 )
+               /* LDC0 */
+               cop_nr = 0;
+       else
+               cop_nr = (insn >> 13) & 0x7;
+
+       /* Try enabling the coprocessor */
+       cpucr = sysreg_read(CPUCR);
+       cpucr |= (1 << (24 + cop_nr));
+       sysreg_write(CPUCR, cpucr);
+
+       cpucr = sysreg_read(CPUCR);
+       if ( !(cpucr & (1 << (24 + cop_nr))) ){
+               printk("Coprocessor #%i not found!\n", cop_nr);
+               return -1;
+       }
+
+       return 0;
+}
+
+#ifdef CONFIG_BUG
+#ifdef CONFIG_DEBUG_BUGVERBOSE
+static inline void do_bug_verbose(struct pt_regs *regs, u32 insn)
+{
+       char *file;
+       u16 line;
+       char c;
+
+       if (__get_user(line, (u16 __user *)(regs->pc + 2)))
+               return;
+       if (__get_user(file, (char * __user *)(regs->pc + 4))
+           || (unsigned long)file < PAGE_OFFSET
+           || __get_user(c, file))
+               file = "<bad filename>";
+
+       printk(KERN_ALERT "kernel BUG at %s:%d!\n", file, line);
+}
+#else
+static inline void do_bug_verbose(struct pt_regs *regs, u32 insn)
+{
+
+}
+#endif
+#endif
+
+asmlinkage void do_illegal_opcode(unsigned long ecr, struct pt_regs *regs)
+{
+       u32 insn;
+       struct undef_hook *hook;
+       siginfo_t info;
+       void __user *pc;
+
+       if (!user_mode(regs))
+               goto kernel_trap;
+
+       local_irq_enable();
+
+       pc = (void __user *)instruction_pointer(regs);
+       if (__get_user(insn, (u32 __user *)pc))
+               goto invalid_area;
+
+        if (ecr == ECR_COPROC_ABSENT) {
+               if (do_cop_absent(insn) == 0)
+                       return;
+        }
+
+       spin_lock_irq(&undef_lock);
+       list_for_each_entry(hook, &undef_hook, node) {
+               if ((insn & hook->insn_mask) == hook->insn_val) {
+                       if (hook->fn(regs, insn) == 0) {
+                               spin_unlock_irq(&undef_lock);
+                               return;
+                       }
+               }
+       }
+       spin_unlock_irq(&undef_lock);
+
+invalid_area:
+
+#ifdef DEBUG
+       printk("Illegal instruction at pc = %08lx\n", regs->pc);
+       if (regs->pc < TASK_SIZE) {
+               unsigned long ptbr, pgd, pte, *p;
+
+               ptbr = sysreg_read(PTBR);
+               p = (unsigned long *)ptbr;
+               pgd = p[regs->pc >> 22];
+               p = (unsigned long *)((pgd & 0x1ffff000) | 0x80000000);
+               pte = p[(regs->pc >> 12) & 0x3ff];
+               printk("page table: 0x%08lx -> 0x%08lx -> 0x%08lx\n", ptbr, pgd, pte);
+       }
+#endif
+
+       info.si_signo = SIGILL;
+       info.si_errno = 0;
+       info.si_addr = (void __user *)regs->pc;
+       switch (ecr) {
+       case ECR_ILLEGAL_OPCODE:
+       case ECR_UNIMPL_INSTRUCTION:
+               info.si_code = ILL_ILLOPC;
+               break;
+       case ECR_PRIVILEGE_VIOLATION:
+               info.si_code = ILL_PRVOPC;
+               break;
+       case ECR_COPROC_ABSENT:
+               info.si_code = ILL_COPROC;
+               break;
+       default:
+               BUG();
+       }
+
+       force_sig_info(SIGILL, &info, current);
+       return;
+
+kernel_trap:
+#ifdef CONFIG_BUG
+       if (__kernel_text_address(instruction_pointer(regs))) {
+               insn = *(u16 *)instruction_pointer(regs);
+               if (insn == AVR32_BUG_OPCODE) {
+                       do_bug_verbose(regs, insn);
+                       die("Kernel BUG", regs, 0);
+                       return;
+               }
+       }
+#endif
+
+       die("Oops: Illegal instruction in kernel code", regs, ecr);
+}
+
+asmlinkage void do_fpe(unsigned long ecr, struct pt_regs *regs)
+{
+       siginfo_t info;
+
+       printk("Floating-point exception at pc = %08lx\n", regs->pc);
+
+       /* We have no FPU... */
+       info.si_signo = SIGILL;
+       info.si_errno = 0;
+       info.si_addr = (void __user *)regs->pc;
+       info.si_code = ILL_COPROC;
+
+       force_sig_info(SIGILL, &info, current);
+}
+
+
+void __init trap_init(void)
+{
+
+}
diff --git a/arch/avr32/kernel/vmlinux.lds.c b/arch/avr32/kernel/vmlinux.lds.c
new file mode 100644 (file)
index 0000000..cdd627c
--- /dev/null
@@ -0,0 +1,139 @@
+/*
+ * AVR32 linker script for the Linux kernel
+ *
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#define LOAD_OFFSET 0x00000000
+#include <asm-generic/vmlinux.lds.h>
+
+OUTPUT_FORMAT("elf32-avr32", "elf32-avr32", "elf32-avr32")
+OUTPUT_ARCH(avr32)
+ENTRY(_start)
+
+/* Big endian */
+jiffies = jiffies_64 + 4;
+
+SECTIONS
+{
+       . = CONFIG_ENTRY_ADDRESS;
+       .init           : AT(ADDR(.init) - LOAD_OFFSET) {
+               _stext = .;
+               __init_begin = .;
+                       _sinittext = .;
+                       *(.text.reset)
+                       *(.init.text)
+                       _einittext = .;
+               . = ALIGN(4);
+               __tagtable_begin = .;
+                       *(.taglist)
+               __tagtable_end = .;
+                       *(.init.data)
+               . = ALIGN(16);
+               __setup_start = .;
+                       *(.init.setup)
+               __setup_end = .;
+               . = ALIGN(4);
+               __initcall_start = .;
+                       *(.initcall1.init)
+                       *(.initcall2.init)
+                       *(.initcall3.init)
+                       *(.initcall4.init)
+                       *(.initcall5.init)
+                       *(.initcall6.init)
+                       *(.initcall7.init)
+               __initcall_end = .;
+               __con_initcall_start = .;
+                       *(.con_initcall.init)
+               __con_initcall_end = .;
+               __security_initcall_start = .;
+                       *(.security_initcall.init)
+               __security_initcall_end = .;
+               . = ALIGN(32);
+               __initramfs_start = .;
+                       *(.init.ramfs)
+               __initramfs_end = .;
+               . = ALIGN(4096);
+               __init_end = .;
+       }
+
+       . = ALIGN(8192);
+       .text           : AT(ADDR(.text) - LOAD_OFFSET) {
+               _evba = .;
+               _text = .;
+               *(.ex.text)
+               . = 0x50;
+               *(.tlbx.ex.text)
+               . = 0x60;
+               *(.tlbr.ex.text)
+               . = 0x70;
+               *(.tlbw.ex.text)
+               . = 0x100;
+               *(.scall.text)
+               *(.irq.text)
+               *(.text)
+               SCHED_TEXT
+               LOCK_TEXT
+               KPROBES_TEXT
+               *(.fixup)
+               *(.gnu.warning)
+               _etext = .;
+       } = 0xd703d703
+
+       . = ALIGN(4);
+       __ex_table      : AT(ADDR(__ex_table) - LOAD_OFFSET) {
+               __start___ex_table = .;
+               *(__ex_table)
+               __stop___ex_table = .;
+       }
+
+       RODATA
+
+       . = ALIGN(8192);
+
+       .data           : AT(ADDR(.data) - LOAD_OFFSET) {
+               _data = .;
+               _sdata = .;
+               /*
+                * First, the init task union, aligned to an 8K boundary.
+                */
+               *(.data.init_task)
+
+               /* Then, the cacheline aligned data */
+               . = ALIGN(32);
+               *(.data.cacheline_aligned)
+
+               /* And the rest... */
+               *(.data.rel*)
+               *(.data)
+               CONSTRUCTORS
+
+               _edata = .;
+       }
+
+
+       . = ALIGN(8);
+       .bss            : AT(ADDR(.bss) - LOAD_OFFSET) {
+               __bss_start = .;
+               *(.bss)
+               *(COMMON)
+               . = ALIGN(8);
+               __bss_stop = .;
+               _end = .;
+       }
+
+       /* When something in the kernel is NOT compiled as a module, the module
+        * cleanup code and data are put into these segments. Both can then be
+        * thrown away, as cleanup code is never called unless it's a module.
+        */
+       /DISCARD/               : {
+               *(.exit.text)
+               *(.exit.data)
+               *(.exitcall.exit)
+       }
+
+       DWARF_DEBUG
+}
diff --git a/arch/avr32/lib/Makefile b/arch/avr32/lib/Makefile
new file mode 100644 (file)
index 0000000..09ac43e
--- /dev/null
@@ -0,0 +1,10 @@
+#
+# Makefile for AVR32-specific library files
+#
+
+lib-y  := copy_user.o clear_user.o
+lib-y  += strncpy_from_user.o strnlen_user.o
+lib-y  += delay.o memset.o memcpy.o findbit.o
+lib-y  += csum_partial.o csum_partial_copy_generic.o
+lib-y  += io-readsw.o io-readsl.o io-writesw.o io-writesl.o
+lib-y  += __avr32_lsl64.o __avr32_lsr64.o __avr32_asr64.o
diff --git a/arch/avr32/lib/__avr32_asr64.S b/arch/avr32/lib/__avr32_asr64.S
new file mode 100644 (file)
index 0000000..368b6bc
--- /dev/null
@@ -0,0 +1,31 @@
+/*
+ * Copyright (C) 2005-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+       /*
+        * DWtype __avr32_asr64(DWtype u, word_type b)
+        */
+       .text
+       .global __avr32_asr64
+       .type   __avr32_asr64,@function
+__avr32_asr64:
+       cp.w    r12, 0
+       reteq   r12
+
+       rsub    r9, r12, 32
+       brle    1f
+
+       lsl     r8, r11, r9
+       lsr     r10, r10, r12
+       asr     r11, r11, r12
+       or      r10, r8
+       retal   r12
+
+1:     neg     r9
+       asr     r10, r11, r9
+       asr     r11, 31
+       retal   r12
diff --git a/arch/avr32/lib/__avr32_lsl64.S b/arch/avr32/lib/__avr32_lsl64.S
new file mode 100644 (file)
index 0000000..f1dbc2b
--- /dev/null
@@ -0,0 +1,31 @@
+/*
+ * Copyright (C) 2005-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+       /*
+        * DWtype __avr32_lsl64(DWtype u, word_type b)
+        */
+       .text
+       .global __avr32_lsl64
+       .type   __avr32_lsl64,@function
+__avr32_lsl64:
+       cp.w    r12, 0
+       reteq   r12
+
+       rsub    r9, r12, 32
+       brle    1f
+
+       lsr     r8, r10, r9
+       lsl     r10, r10, r12
+       lsl     r11, r11, r12
+       or      r11, r8
+       retal   r12
+
+1:     neg     r9
+       lsl     r11, r10, r9
+       mov     r10, 0
+       retal   r12
diff --git a/arch/avr32/lib/__avr32_lsr64.S b/arch/avr32/lib/__avr32_lsr64.S
new file mode 100644 (file)
index 0000000..e65bb7f
--- /dev/null
@@ -0,0 +1,31 @@
+/*
+ * Copyright (C) 2005-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+       /*
+        * DWtype __avr32_lsr64(DWtype u, word_type b)
+        */
+       .text
+       .global __avr32_lsr64
+       .type   __avr32_lsr64,@function
+__avr32_lsr64:
+       cp.w    r12, 0
+       reteq   r12
+
+       rsub    r9, r12, 32
+       brle    1f
+
+       lsl     r8, r11, r9
+       lsr     r11, r11, r12
+       lsr     r10, r10, r12
+       or      r10, r8
+       retal   r12
+
+1:     neg     r9
+       lsr     r10, r11, r9
+       mov     r11, 0
+       retal   r12
diff --git a/arch/avr32/lib/clear_user.S b/arch/avr32/lib/clear_user.S
new file mode 100644 (file)
index 0000000..d8991b6
--- /dev/null
@@ -0,0 +1,76 @@
+/*
+ * Copyright 2004-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <asm/page.h>
+#include <asm/thread_info.h>
+#include <asm/asm.h>
+
+       .text
+       .align  1
+       .global clear_user
+       .type   clear_user, "function"
+clear_user:
+       branch_if_kernel r8, __clear_user
+       ret_if_privileged r8, r12, r11, r11
+
+       .global __clear_user
+       .type   __clear_user, "function"
+__clear_user:
+       mov     r9, r12
+       mov     r8, 0
+       andl    r9, 3, COH
+       brne    5f
+
+1:     sub     r11, 4
+       brlt    2f
+
+10:    st.w    r12++, r8
+       sub     r11, 4
+       brge    10b
+
+2:     sub     r11, -4
+       reteq   0
+
+       /* Unaligned count or address */
+       bld     r11, 1
+       brcc    12f
+11:    st.h    r12++, r8
+       sub     r11, 2
+       reteq   0
+12:    st.b    r12++, r8
+       retal   0
+
+       /* Unaligned address */
+5:     cp.w    r11, 4
+       brlt    2b
+
+       lsl     r9, 2
+       add     pc, pc, r9
+13:    st.b    r12++, r8
+       sub     r11, 1
+14:    st.b    r12++, r8
+       sub     r11, 1
+15:    st.b    r12++, r8
+       sub     r11, 1
+       rjmp    1b
+
+       .size   clear_user, . - clear_user
+       .size   __clear_user, . - __clear_user
+
+       .section .fixup, "ax"
+       .align  1
+18:    sub     r11, -4
+19:    retal   r11
+
+       .section __ex_table, "a"
+       .align  2
+       .long   10b, 18b
+       .long   11b, 19b
+       .long   12b, 19b
+       .long   13b, 19b
+       .long   14b, 19b
+       .long   15b, 19b
diff --git a/arch/avr32/lib/copy_user.S b/arch/avr32/lib/copy_user.S
new file mode 100644 (file)
index 0000000..ea59c04
--- /dev/null
@@ -0,0 +1,119 @@
+/*
+ * Copy to/from userspace with optional address space checking.
+ *
+ * Copyright 2004-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <asm/page.h>
+#include <asm/thread_info.h>
+#include <asm/asm.h>
+
+       /*
+        * __kernel_size_t
+        * __copy_user(void *to, const void *from, __kernel_size_t n)
+        *
+        * Returns the number of bytes not copied. Might be off by
+        * max 3 bytes if we get a fault in the main loop.
+        *
+        * The address-space checking functions simply fall through to
+        * the non-checking version.
+        */
+       .text
+       .align  1
+       .global copy_from_user
+       .type   copy_from_user, @function
+copy_from_user:
+       branch_if_kernel r8, __copy_user
+       ret_if_privileged r8, r11, r10, r10
+       rjmp    __copy_user
+       .size   copy_from_user, . - copy_from_user
+
+       .global copy_to_user
+       .type   copy_to_user, @function
+copy_to_user:
+       branch_if_kernel r8, __copy_user
+       ret_if_privileged r8, r12, r10, r10
+       .size   copy_to_user, . - copy_to_user
+
+       .global __copy_user
+       .type   __copy_user, @function
+__copy_user:
+       mov     r9, r11
+       andl    r9, 3, COH
+       brne    6f
+
+       /* At this point, from is word-aligned */
+1:     sub     r10, 4
+       brlt    3f
+
+2:
+10:    ld.w    r8, r11++
+11:    st.w    r12++, r8
+       sub     r10, 4
+       brge    2b
+
+3:     sub     r10, -4
+       reteq   0
+
+       /*
+        * Handle unaligned count. Need to be careful with r10 here so
+        * that we return the correct value even if we get a fault
+        */
+4:
+20:    ld.ub   r8, r11++
+21:    st.b    r12++, r8
+       sub     r10, 1
+       reteq   0
+22:    ld.ub   r8, r11++
+23:    st.b    r12++, r8
+       sub     r10, 1
+       reteq   0
+24:    ld.ub   r8, r11++
+25:    st.b    r12++, r8
+       retal   0
+
+       /* Handle unaligned from-pointer */
+6:     cp.w    r10, 4
+       brlt    4b
+       rsub    r9, r9, 4
+
+30:    ld.ub   r8, r11++
+31:    st.b    r12++, r8
+       sub     r10, 1
+       sub     r9, 1
+       breq    1b
+32:    ld.ub   r8, r11++
+33:    st.b    r12++, r8
+       sub     r10, 1
+       sub     r9, 1
+       breq    1b
+34:    ld.ub   r8, r11++
+35:    st.b    r12++, r8
+       sub     r10, 1
+       rjmp    1b
+       .size   __copy_user, . - __copy_user
+
+       .section .fixup,"ax"
+       .align  1
+19:    sub     r10, -4
+29:    retal   r10
+
+       .section __ex_table,"a"
+       .align  2
+       .long   10b, 19b
+       .long   11b, 19b
+       .long   20b, 29b
+       .long   21b, 29b
+       .long   22b, 29b
+       .long   23b, 29b
+       .long   24b, 29b
+       .long   25b, 29b
+       .long   30b, 29b
+       .long   31b, 29b
+       .long   32b, 29b
+       .long   33b, 29b
+       .long   34b, 29b
+       .long   35b, 29b
diff --git a/arch/avr32/lib/csum_partial.S b/arch/avr32/lib/csum_partial.S
new file mode 100644 (file)
index 0000000..6a262b5
--- /dev/null
@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+       /*
+        * unsigned int csum_partial(const unsigned char *buff,
+        *                           int len, unsigned int sum)
+        */
+       .text
+       .global csum_partial
+       .type   csum_partial,"function"
+       .align  1
+csum_partial:
+       /* checksum complete words, aligned or not */
+3:     sub     r11, 4
+       brlt    5f
+4:     ld.w    r9, r12++
+       add     r10, r9
+       acr     r10
+       sub     r11, 4
+       brge    4b
+
+       /* return if we had a whole number of words */
+5:     sub     r11, -4
+       reteq   r10
+
+       /* checksum any remaining bytes at the end */
+       mov     r9, 0
+       mov     r8, 0
+       cp      r11, 2
+       brlt    6f
+       ld.uh   r9, r12++
+       sub     r11, 2
+       breq    7f
+       lsl     r9, 16
+6:     ld.ub   r8, r12++
+       lsl     r8, 8
+7:     or      r9, r8
+       add     r10, r9
+       acr     r10
+
+       retal   r10
+       .size   csum_partial, . - csum_partial
diff --git a/arch/avr32/lib/csum_partial_copy_generic.S b/arch/avr32/lib/csum_partial_copy_generic.S
new file mode 100644 (file)
index 0000000..a3a0f9b
--- /dev/null
@@ -0,0 +1,99 @@
+/*
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <asm/errno.h>
+#include <asm/asm.h>
+
+       /*
+        * unsigned int csum_partial_copy_generic(const char *src, char *dst, int len
+        *                                        int sum, int *src_err_ptr,
+        *                                        int *dst_err_ptr)
+        *
+        * Copy src to dst while checksumming, otherwise like csum_partial.
+        */
+
+       .macro ld_src size, reg, ptr
+9999:  ld.\size \reg, \ptr
+       .section __ex_table, "a"
+       .long   9999b, fixup_ld_src
+       .previous
+       .endm
+
+       .macro st_dst size, ptr, reg
+9999:  st.\size \ptr, \reg
+       .section __ex_table, "a"
+       .long   9999b, fixup_st_dst
+       .previous
+       .endm
+
+       .text
+       .global csum_partial_copy_generic
+       .type   csum_partial_copy_generic,"function"
+       .align  1
+csum_partial_copy_generic:
+       pushm   r4-r7,lr
+
+       /* The inner loop */
+1:     sub     r10, 4
+       brlt    5f
+2:     ld_src  w, r5, r12++
+       st_dst  w, r11++, r5
+       add     r9, r5
+       acr     r9
+       sub     r10, 4
+       brge    2b
+
+       /* return if we had a whole number of words */
+5:     sub     r10, -4
+       brne    7f
+
+6:     mov     r12, r9
+       popm    r4-r7,pc
+
+       /* handle additional bytes at the tail */
+7:     mov     r5, 0
+       mov     r4, 32
+8:     ld_src  ub, r6, r12++
+       st_dst  b, r11++, r6
+       lsl     r5, 8
+       sub     r4, 8
+       bfins   r5, r6, 0, 8
+       sub     r10, 1
+       brne    8b
+
+       lsl     r5, r5, r4
+       add     r9, r5
+       acr     r9
+       rjmp    6b
+
+       /* Exception handler */
+       .section .fixup,"ax"
+       .align  1
+fixup_ld_src:
+       mov     r9, -EFAULT
+       cp.w    r8, 0
+       breq    1f
+       st.w    r8[0], r9
+
+1:     /*
+        * TODO: zero the complete destination - computing the rest
+        * is too much work
+        */
+
+       mov     r9, 0
+       rjmp    6b
+
+fixup_st_dst:
+       mov     r9, -EFAULT
+       lddsp   r8, sp[20]
+       cp.w    r8, 0
+       breq    1f
+       st.w    r8[0], r9
+1:     mov     r9, 0
+       rjmp    6b
+
+       .previous
diff --git a/arch/avr32/lib/delay.c b/arch/avr32/lib/delay.c
new file mode 100644 (file)
index 0000000..462c830
--- /dev/null
@@ -0,0 +1,55 @@
+/*
+ *      Precise Delay Loops for avr32
+ *
+ *      Copyright (C) 1993 Linus Torvalds
+ *      Copyright (C) 1997 Martin Mares <mj@atrey.karlin.mff.cuni.cz>
+ *     Copyright (C) 2005-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/delay.h>
+#include <linux/module.h>
+#include <linux/types.h>
+
+#include <asm/delay.h>
+#include <asm/processor.h>
+#include <asm/sysreg.h>
+
+int read_current_timer(unsigned long *timer_value)
+{
+       *timer_value = sysreg_read(COUNT);
+       return 0;
+}
+
+void __delay(unsigned long loops)
+{
+       unsigned bclock, now;
+
+       bclock = sysreg_read(COUNT);
+       do {
+               now = sysreg_read(COUNT);
+       } while ((now - bclock) < loops);
+}
+
+inline void __const_udelay(unsigned long xloops)
+{
+       unsigned long long loops;
+
+       asm("mulu.d %0, %1, %2"
+           : "=r"(loops)
+           : "r"(current_cpu_data.loops_per_jiffy * HZ), "r"(xloops));
+       __delay(loops >> 32);
+}
+
+void __udelay(unsigned long usecs)
+{
+       __const_udelay(usecs * 0x000010c7); /* 2**32 / 1000000 (rounded up) */
+}
+
+void __ndelay(unsigned long nsecs)
+{
+       __const_udelay(nsecs * 0x00005); /* 2**32 / 1000000000 (rounded up) */
+}
diff --git a/arch/avr32/lib/findbit.S b/arch/avr32/lib/findbit.S
new file mode 100644 (file)
index 0000000..2b4856f
--- /dev/null
@@ -0,0 +1,154 @@
+/*
+ * Copyright (C) 2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/linkage.h>
+
+       .text
+       /*
+        * unsigned long find_first_zero_bit(const unsigned long *addr,
+        *                                   unsigned long size)
+        */
+ENTRY(find_first_zero_bit)
+       cp.w    r11, 0
+       reteq   r11
+       mov     r9, r11
+1:     ld.w    r8, r12[0]
+       com     r8
+       brne    .L_found
+       sub     r12, -4
+       sub     r9, 32
+       brgt    1b
+       retal   r11
+
+       /*
+        * unsigned long find_next_zero_bit(const unsigned long *addr,
+        *                                  unsigned long size,
+        *                                  unsigned long offset)
+        */
+ENTRY(find_next_zero_bit)
+       lsr     r8, r10, 5
+       sub     r9, r11, r10
+       retle   r11
+
+       lsl     r8, 2
+       add     r12, r8
+       andl    r10, 31, COH
+       breq    1f
+
+       /* offset is not word-aligned. Handle the first (32 - r10) bits */
+       ld.w    r8, r12[0]
+       com     r8
+       sub     r12, -4
+       lsr     r8, r8, r10
+       brne    .L_found
+
+       /* r9 = r9 - (32 - r10) = r9 + r10 - 32 */
+       add     r9, r10
+       sub     r9, 32
+       retle   r11
+
+       /* Main loop. offset must be word-aligned */
+1:     ld.w    r8, r12[0]
+       com     r8
+       brne    .L_found
+       sub     r12, -4
+       sub     r9, 32
+       brgt    1b
+       retal   r11
+
+       /* Common return path for when a bit is actually found. */
+.L_found:
+       brev    r8
+       clz     r10, r8
+       rsub    r9, r11
+       add     r10, r9
+
+       /* XXX: If we don't have to return exactly "size" when the bit
+          is not found, we may drop this "min" thing */
+       min     r12, r11, r10
+       retal   r12
+
+       /*
+        * unsigned long find_first_bit(const unsigned long *addr,
+        *                              unsigned long size)
+        */
+ENTRY(find_first_bit)
+       cp.w    r11, 0
+       reteq   r11
+       mov     r9, r11
+1:     ld.w    r8, r12[0]
+       cp.w    r8, 0
+       brne    .L_found
+       sub     r12, -4
+       sub     r9, 32
+       brgt    1b
+       retal   r11
+
+       /*
+        * unsigned long find_next_bit(const unsigned long *addr,
+        *                             unsigned long size,
+        *                             unsigned long offset)
+        */
+ENTRY(find_next_bit)
+       lsr     r8, r10, 5
+       sub     r9, r11, r10
+       retle   r11
+
+       lsl     r8, 2
+       add     r12, r8
+       andl    r10, 31, COH
+       breq    1f
+
+       /* offset is not word-aligned. Handle the first (32 - r10) bits */
+       ld.w    r8, r12[0]
+       sub     r12, -4
+       lsr     r8, r8, r10
+       brne    .L_found
+
+       /* r9 = r9 - (32 - r10) = r9 + r10 - 32 */
+       add     r9, r10
+       sub     r9, 32
+       retle   r11
+
+       /* Main loop. offset must be word-aligned */
+1:     ld.w    r8, r12[0]
+       cp.w    r8, 0
+       brne    .L_found
+       sub     r12, -4
+       sub     r9, 32
+       brgt    1b
+       retal   r11
+
+ENTRY(generic_find_next_zero_le_bit)
+       lsr     r8, r10, 5
+       sub     r9, r11, r10
+       retle   r11
+
+       lsl     r8, 2
+       add     r12, r8
+       andl    r10, 31, COH
+       breq    1f
+
+       /* offset is not word-aligned. Handle the first (32 - r10) bits */
+       ldswp.w r8, r12[0]
+       sub     r12, -4
+       lsr     r8, r8, r10
+       brne    .L_found
+
+       /* r9 = r9 - (32 - r10) = r9 + r10 - 32 */
+       add     r9, r10
+       sub     r9, 32
+       retle   r11
+
+       /* Main loop. offset must be word-aligned */
+1:     ldswp.w r8, r12[0]
+       cp.w    r8, 0
+       brne    .L_found
+       sub     r12, -4
+       sub     r9, 32
+       brgt    1b
+       retal   r11
diff --git a/arch/avr32/lib/io-readsl.S b/arch/avr32/lib/io-readsl.S
new file mode 100644 (file)
index 0000000..b103511
--- /dev/null
@@ -0,0 +1,24 @@
+/*
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+       .global __raw_readsl
+       .type   __raw_readsl,@function
+__raw_readsl:
+       cp.w    r10, 0
+       reteq   r12
+
+       /*
+        * If r11 isn't properly aligned, we might get an exception on
+        * some implementations. But there's not much we can do about it.
+        */
+1:     ld.w    r8, r12[0]
+       sub     r10, 1
+       st.w    r11++, r8
+       brne    1b
+
+       retal   r12
diff --git a/arch/avr32/lib/io-readsw.S b/arch/avr32/lib/io-readsw.S
new file mode 100644 (file)
index 0000000..456be99
--- /dev/null
@@ -0,0 +1,43 @@
+/*
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+.Lnot_word_aligned:
+       /*
+        * Bad alignment will cause a hardware exception, which is as
+        * good as anything. No need for us to check for proper alignment.
+        */
+       ld.uh   r8, r12[0]
+       sub     r10, 1
+       st.h    r11++, r8
+
+       /* fall through */
+
+       .global __raw_readsw
+       .type   __raw_readsw,@function
+__raw_readsw:
+       cp.w    r10, 0
+       reteq   r12
+       mov     r9, 3
+       tst     r11, r9
+       brne    .Lnot_word_aligned
+
+       sub     r10, 2
+       brlt    2f
+
+1:     ldins.h r8:t, r12[0]
+       ldins.h r8:b, r12[0]
+       st.w    r11++, r8
+       sub     r10, 2
+       brge    1b
+
+2:     sub     r10, -2
+       reteq   r12
+
+       ld.uh   r8, r12[0]
+       st.h    r11++, r8
+       retal   r12
diff --git a/arch/avr32/lib/io-writesl.S b/arch/avr32/lib/io-writesl.S
new file mode 100644 (file)
index 0000000..22138b3
--- /dev/null
@@ -0,0 +1,20 @@
+/*
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+       .global __raw_writesl
+       .type   __raw_writesl,@function
+__raw_writesl:
+       cp.w    r10, 0
+       reteq   r12
+
+1:     ld.w    r8, r11++
+       sub     r10, 1
+       st.w    r12[0], r8
+       brne    1b
+
+       retal   r12
diff --git a/arch/avr32/lib/io-writesw.S b/arch/avr32/lib/io-writesw.S
new file mode 100644 (file)
index 0000000..8c4a53f
--- /dev/null
@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+.Lnot_word_aligned:
+       ld.uh   r8, r11++
+       sub     r10, 1
+       st.h    r12[0], r8
+
+       .global __raw_writesw
+       .type   __raw_writesw,@function
+__raw_writesw:
+       cp.w    r10, 0
+       mov     r9, 3
+       reteq   r12
+       tst     r11, r9
+       brne    .Lnot_word_aligned
+
+       sub     r10, 2
+       brlt    2f
+
+1:     ld.w    r8, r11++
+       bfextu  r9, r8, 16, 16
+       st.h    r12[0], r9
+       st.h    r12[0], r8
+       sub     r10, 2
+       brge    1b
+
+2:     sub     r10, -2
+       reteq   r12
+
+       ld.uh   r8, r11++
+       st.h    r12[0], r8
+       retal   r12
diff --git a/arch/avr32/lib/libgcc.h b/arch/avr32/lib/libgcc.h
new file mode 100644 (file)
index 0000000..5a091b5
--- /dev/null
@@ -0,0 +1,33 @@
+/* Definitions for various functions 'borrowed' from gcc-3.4.3 */
+
+#define BITS_PER_UNIT  8
+
+typedef                 int QItype     __attribute__ ((mode (QI)));
+typedef unsigned int UQItype   __attribute__ ((mode (QI)));
+typedef                 int HItype     __attribute__ ((mode (HI)));
+typedef unsigned int UHItype   __attribute__ ((mode (HI)));
+typedef         int SItype     __attribute__ ((mode (SI)));
+typedef unsigned int USItype   __attribute__ ((mode (SI)));
+typedef                 int DItype     __attribute__ ((mode (DI)));
+typedef unsigned int UDItype   __attribute__ ((mode (DI)));
+typedef        float SFtype    __attribute__ ((mode (SF)));
+typedef                float DFtype    __attribute__ ((mode (DF)));
+typedef int word_type __attribute__ ((mode (__word__)));
+
+#define W_TYPE_SIZE (4 * BITS_PER_UNIT)
+#define Wtype  SItype
+#define UWtype USItype
+#define HWtype SItype
+#define UHWtype        USItype
+#define DWtype DItype
+#define UDWtype        UDItype
+#define __NW(a,b)      __ ## a ## si ## b
+#define __NDW(a,b)     __ ## a ## di ## b
+
+struct DWstruct {Wtype high, low;};
+
+typedef union
+{
+  struct DWstruct s;
+  DWtype ll;
+} DWunion;
diff --git a/arch/avr32/lib/longlong.h b/arch/avr32/lib/longlong.h
new file mode 100644 (file)
index 0000000..cd5e369
--- /dev/null
@@ -0,0 +1,98 @@
+/* longlong.h -- definitions for mixed size 32/64 bit arithmetic.
+   Copyright (C) 1991, 1992, 1994, 1995, 1996, 1997, 1998, 1999, 2000
+   Free Software Foundation, Inc.
+
+   This definition file is free software; you can redistribute it
+   and/or modify it under the terms of the GNU General Public
+   License as published by the Free Software Foundation; either
+   version 2, or (at your option) any later version.
+
+   This definition file is distributed in the hope that it will be
+   useful, but WITHOUT ANY WARRANTY; without even the implied
+   warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+   See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+/* Borrowed from gcc-3.4.3 */
+
+#define __BITS4 (W_TYPE_SIZE / 4)
+#define __ll_B ((UWtype) 1 << (W_TYPE_SIZE / 2))
+#define __ll_lowpart(t) ((UWtype) (t) & (__ll_B - 1))
+#define __ll_highpart(t) ((UWtype) (t) >> (W_TYPE_SIZE / 2))
+
+#define count_leading_zeros(count, x) ((count) = __builtin_clz(x))
+
+#define __udiv_qrnnd_c(q, r, n1, n0, d) \
+  do {                                                                 \
+    UWtype __d1, __d0, __q1, __q0;                                     \
+    UWtype __r1, __r0, __m;                                            \
+    __d1 = __ll_highpart (d);                                          \
+    __d0 = __ll_lowpart (d);                                           \
+                                                                       \
+    __r1 = (n1) % __d1;                                                        \
+    __q1 = (n1) / __d1;                                                        \
+    __m = (UWtype) __q1 * __d0;                                                \
+    __r1 = __r1 * __ll_B | __ll_highpart (n0);                         \
+    if (__r1 < __m)                                                    \
+      {                                                                        \
+       __q1--, __r1 += (d);                                            \
+       if (__r1 >= (d)) /* i.e. we didn't get carry when adding to __r1 */\
+         if (__r1 < __m)                                               \
+           __q1--, __r1 += (d);                                        \
+      }                                                                        \
+    __r1 -= __m;                                                       \
+                                                                       \
+    __r0 = __r1 % __d1;                                                        \
+    __q0 = __r1 / __d1;                                                        \
+    __m = (UWtype) __q0 * __d0;                                                \
+    __r0 = __r0 * __ll_B | __ll_lowpart (n0);                          \
+    if (__r0 < __m)                                                    \
+      {                                                                        \
+       __q0--, __r0 += (d);                                            \
+       if (__r0 >= (d))                                                \
+         if (__r0 < __m)                                               \
+           __q0--, __r0 += (d);                                        \
+      }                                                                        \
+    __r0 -= __m;                                                       \
+                                                                       \
+    (q) = (UWtype) __q1 * __ll_B | __q0;                               \
+    (r) = __r0;                                                                \
+  } while (0)
+
+#define udiv_qrnnd __udiv_qrnnd_c
+
+#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
+  do {                                                                 \
+    UWtype __x;                                                                \
+    __x = (al) - (bl);                                                 \
+    (sh) = (ah) - (bh) - (__x > (al));                                 \
+    (sl) = __x;                                                                \
+  } while (0)
+
+#define umul_ppmm(w1, w0, u, v)                                                \
+  do {                                                                 \
+    UWtype __x0, __x1, __x2, __x3;                                     \
+    UHWtype __ul, __vl, __uh, __vh;                                    \
+                                                                       \
+    __ul = __ll_lowpart (u);                                           \
+    __uh = __ll_highpart (u);                                          \
+    __vl = __ll_lowpart (v);                                           \
+    __vh = __ll_highpart (v);                                          \
+                                                                       \
+    __x0 = (UWtype) __ul * __vl;                                       \
+    __x1 = (UWtype) __ul * __vh;                                       \
+    __x2 = (UWtype) __uh * __vl;                                       \
+    __x3 = (UWtype) __uh * __vh;                                       \
+                                                                       \
+    __x1 += __ll_highpart (__x0);/* this can't give carry */           \
+    __x1 += __x2;              /* but this indeed can */               \
+    if (__x1 < __x2)           /* did we get it? */                    \
+      __x3 += __ll_B;          /* yes, add it in the proper pos.  */   \
+                                                                       \
+    (w1) = __x3 + __ll_highpart (__x1);                                        \
+    (w0) = __ll_lowpart (__x1) * __ll_B + __ll_lowpart (__x0);         \
+  } while (0)
diff --git a/arch/avr32/lib/memcpy.S b/arch/avr32/lib/memcpy.S
new file mode 100644 (file)
index 0000000..0abb261
--- /dev/null
@@ -0,0 +1,62 @@
+/*
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+       /*
+        * void *memcpy(void *to, const void *from, unsigned long n)
+        *
+        * This implementation does word-aligned loads in the main loop,
+        * possibly sacrificing alignment of stores.
+        *
+        * Hopefully, in most cases, both "to" and "from" will be
+        * word-aligned to begin with.
+        */
+       .text
+       .global memcpy
+       .type   memcpy, @function
+memcpy:
+       mov     r9, r11
+       andl    r9, 3, COH
+       brne    1f
+
+       /* At this point, "from" is word-aligned */
+2:     sub     r10, 4
+       mov     r9, r12
+       brlt    4f
+
+3:     ld.w    r8, r11++
+       sub     r10, 4
+       st.w    r12++, r8
+       brge    3b
+
+4:     neg     r10
+       reteq   r9
+
+       /* Handle unaligned count */
+       lsl     r10, 2
+       add     pc, pc, r10
+       ld.ub   r8, r11++
+       st.b    r12++, r8
+       ld.ub   r8, r11++
+       st.b    r12++, r8
+       ld.ub   r8, r11++
+       st.b    r12++, r8
+       retal   r9
+
+       /* Handle unaligned "from" pointer */
+1:     sub     r10, 4
+       brlt    4b
+       add     r10, r9
+       lsl     r9, 2
+       add     pc, pc, r9
+       ld.ub   r8, r11++
+       st.b    r12++, r8
+       ld.ub   r8, r11++
+       st.b    r12++, r8
+       ld.ub   r8, r11++
+       st.b    r12++, r8
+       rjmp    2b
diff --git a/arch/avr32/lib/memset.S b/arch/avr32/lib/memset.S
new file mode 100644 (file)
index 0000000..40da32c
--- /dev/null
@@ -0,0 +1,72 @@
+/*
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * Based on linux/arch/arm/lib/memset.S
+ *   Copyright (C) 1995-2000 Russell King
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * ASM optimised string functions
+ */
+#include <asm/asm.h>
+
+       /*
+        * r12: void *b
+        * r11: int c
+        * r10: size_t len
+        *
+        * Returns b in r12
+        */
+       .text
+       .global memset
+       .type   memset, @function
+       .align  5
+memset:
+       mov     r9, r12
+       mov     r8, r12
+       or      r11, r11, r11 << 8
+       andl    r9, 3, COH
+       brne    1f
+
+2:     or      r11, r11, r11 << 16
+       sub     r10, 4
+       brlt    5f
+
+       /* Let's do some real work */
+4:     st.w    r8++, r11
+       sub     r10, 4
+       brge    4b
+
+       /*
+        * When we get here, we've got less than 4 bytes to set. r10
+        * might be negative.
+        */
+5:     sub     r10, -4
+       reteq   r12
+
+       /* Fastpath ends here, exactly 32 bytes from memset */
+
+       /* Handle unaligned count or pointer */
+       bld     r10, 1
+       brcc    6f
+       st.b    r8++, r11
+       st.b    r8++, r11
+       bld     r10, 0
+       retcc   r12
+6:     st.b    r8++, r11
+       retal   r12
+
+       /* Handle unaligned pointer */
+1:     sub     r10, 4
+       brlt    5b
+       add     r10, r9
+       lsl     r9, 1
+       add     pc, r9
+       st.b    r8++, r11
+       st.b    r8++, r11
+       st.b    r8++, r11
+       rjmp    2b
+
+       .size   memset, . - memset
diff --git a/arch/avr32/lib/strncpy_from_user.S b/arch/avr32/lib/strncpy_from_user.S
new file mode 100644 (file)
index 0000000..72bd505
--- /dev/null
@@ -0,0 +1,60 @@
+/*
+ * Copy to/from userspace with optional address space checking.
+ *
+ * Copyright 2004-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/errno.h>
+
+#include <asm/page.h>
+#include <asm/thread_info.h>
+#include <asm/asm.h>
+
+       /*
+        * long strncpy_from_user(char *dst, const char *src, long count)
+        *
+        * On success, returns the length of the string, not including
+        * the terminating NUL.
+        *
+        * If the string is longer than count, returns count
+        *
+        * If userspace access fails, returns -EFAULT
+        */
+       .text
+       .align  1
+       .global strncpy_from_user
+       .type   strncpy_from_user, "function"
+strncpy_from_user:
+       mov     r9, -EFAULT
+       branch_if_kernel r8, __strncpy_from_user
+       ret_if_privileged r8, r11, r10, r9
+
+       .global __strncpy_from_user
+       .type   __strncpy_from_user, "function"
+__strncpy_from_user:
+       cp.w    r10, 0
+       reteq   0
+
+       mov     r9, r10
+
+1:     ld.ub   r8, r11++
+       st.b    r12++, r8
+       cp.w    r8, 0
+       breq    2f
+       sub     r9, 1
+       brne    1b
+
+2:     sub     r10, r9
+       retal   r10
+
+       .section .fixup, "ax"
+       .align  1
+3:     mov     r12, -EFAULT
+       retal   r12
+
+       .section __ex_table, "a"
+       .align  2
+       .long   1b, 3b
diff --git a/arch/avr32/lib/strnlen_user.S b/arch/avr32/lib/strnlen_user.S
new file mode 100644 (file)
index 0000000..65ce11a
--- /dev/null
@@ -0,0 +1,67 @@
+/*
+ * Copy to/from userspace with optional address space checking.
+ *
+ * Copyright 2004-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <asm/page.h>
+#include <asm/thread_info.h>
+#include <asm/processor.h>
+#include <asm/asm.h>
+
+       .text
+       .align  1
+       .global strnlen_user
+       .type   strnlen_user, "function"
+strnlen_user:
+       branch_if_kernel r8, __strnlen_user
+       sub     r8, r11, 1
+       add     r8, r12
+       retcs   0
+       brmi    adjust_length   /* do a closer inspection */
+
+       .global __strnlen_user
+       .type   __strnlen_user, "function"
+__strnlen_user:
+       mov     r10, r12
+
+10:    ld.ub   r8, r12++
+       cp.w    r8, 0
+       breq    2f
+       sub     r11, 1
+       brne    10b
+
+       sub     r12, -1
+2:     sub     r12, r10
+       retal   r12
+
+
+       .type   adjust_length, "function"
+adjust_length:
+       cp.w    r12, 0          /* addr must always be < TASK_SIZE */
+       retmi   0
+
+       pushm   lr
+       lddpc   lr, _task_size
+       sub     r11, lr, r12
+       mov     r9, r11
+       rcall   __strnlen_user
+       cp.w    r12, r9
+       brgt    1f
+       popm    pc
+1:     popm    pc, r12=0
+
+       .align  2
+_task_size:
+       .long   TASK_SIZE
+
+       .section .fixup, "ax"
+       .align  1
+19:    retal   0
+
+       .section __ex_table, "a"
+       .align  2
+       .long   10b, 19b
diff --git a/arch/avr32/mach-at32ap/Makefile b/arch/avr32/mach-at32ap/Makefile
new file mode 100644 (file)
index 0000000..4b10853
--- /dev/null
@@ -0,0 +1,2 @@
+obj-y                          += at32ap.o clock.o pio.o intc.o extint.o
+obj-$(CONFIG_CPU_AT32AP7000)   += at32ap7000.o
diff --git a/arch/avr32/mach-at32ap/at32ap.c b/arch/avr32/mach-at32ap/at32ap.c
new file mode 100644 (file)
index 0000000..f7cedf5
--- /dev/null
@@ -0,0 +1,90 @@
+/*
+ * Copyright (C) 2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/clk.h>
+#include <linux/err.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+
+#include <asm/io.h>
+
+#include <asm/arch/init.h>
+#include <asm/arch/sm.h>
+
+struct at32_sm system_manager;
+
+static int __init at32_sm_init(void)
+{
+       struct resource *regs;
+       struct at32_sm *sm = &system_manager;
+       int ret = -ENXIO;
+
+       regs = platform_get_resource(&at32_sm_device, IORESOURCE_MEM, 0);
+       if (!regs)
+               goto fail;
+
+       spin_lock_init(&sm->lock);
+       sm->pdev = &at32_sm_device;
+
+       ret = -ENOMEM;
+       sm->regs = ioremap(regs->start, regs->end - regs->start + 1);
+       if (!sm->regs)
+               goto fail;
+
+       return 0;
+
+fail:
+       printk(KERN_ERR "Failed to initialize System Manager: %d\n", ret);
+       return ret;
+}
+
+void __init setup_platform(void)
+{
+       at32_sm_init();
+       at32_clock_init();
+       at32_portmux_init();
+
+       /* FIXME: This doesn't belong here */
+       at32_setup_serial_console(1);
+}
+
+static int __init pdc_probe(struct platform_device *pdev)
+{
+       struct clk *pclk, *hclk;
+
+       pclk = clk_get(&pdev->dev, "pclk");
+       if (IS_ERR(pclk)) {
+               dev_err(&pdev->dev, "no pclk defined\n");
+               return PTR_ERR(pclk);
+       }
+       hclk = clk_get(&pdev->dev, "hclk");
+       if (IS_ERR(hclk)) {
+               dev_err(&pdev->dev, "no hclk defined\n");
+               clk_put(pclk);
+               return PTR_ERR(hclk);
+       }
+
+       clk_enable(pclk);
+       clk_enable(hclk);
+
+       dev_info(&pdev->dev, "Atmel Peripheral DMA Controller enabled\n");
+       return 0;
+}
+
+static struct platform_driver pdc_driver = {
+       .probe          = pdc_probe,
+       .driver         = {
+               .name   = "pdc",
+       },
+};
+
+static int __init pdc_init(void)
+{
+       return platform_driver_register(&pdc_driver);
+}
+arch_initcall(pdc_init);
diff --git a/arch/avr32/mach-at32ap/at32ap7000.c b/arch/avr32/mach-at32ap/at32ap7000.c
new file mode 100644 (file)
index 0000000..e8c6893
--- /dev/null
@@ -0,0 +1,866 @@
+/*
+ * Copyright (C) 2005-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/clk.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+
+#include <asm/io.h>
+
+#include <asm/arch/board.h>
+#include <asm/arch/portmux.h>
+#include <asm/arch/sm.h>
+
+#include "clock.h"
+#include "pio.h"
+#include "sm.h"
+
+#define PBMEM(base)                                    \
+       {                                               \
+               .start          = base,                 \
+               .end            = base + 0x3ff,         \
+               .flags          = IORESOURCE_MEM,       \
+       }
+#define IRQ(num)                                       \
+       {                                               \
+               .start          = num,                  \
+               .end            = num,                  \
+               .flags          = IORESOURCE_IRQ,       \
+       }
+#define NAMED_IRQ(num, _name)                          \
+       {                                               \
+               .start          = num,                  \
+               .end            = num,                  \
+               .name           = _name,                \
+               .flags          = IORESOURCE_IRQ,       \
+       }
+
+#define DEFINE_DEV(_name, _id)                                 \
+static struct platform_device _name##_id##_device = {          \
+       .name           = #_name,                               \
+       .id             = _id,                                  \
+       .resource       = _name##_id##_resource,                \
+       .num_resources  = ARRAY_SIZE(_name##_id##_resource),    \
+}
+#define DEFINE_DEV_DATA(_name, _id)                            \
+static struct platform_device _name##_id##_device = {          \
+       .name           = #_name,                               \
+       .id             = _id,                                  \
+       .dev            = {                                     \
+               .platform_data  = &_name##_id##_data,           \
+       },                                                      \
+       .resource       = _name##_id##_resource,                \
+       .num_resources  = ARRAY_SIZE(_name##_id##_resource),    \
+}
+
+#define DEV_CLK(_name, devname, bus, _index)                   \
+static struct clk devname##_##_name = {                                \
+       .name           = #_name,                               \
+       .dev            = &devname##_device.dev,                \
+       .parent         = &bus##_clk,                           \
+       .mode           = bus##_clk_mode,                       \
+       .get_rate       = bus##_clk_get_rate,                   \
+       .index          = _index,                               \
+}
+
+enum {
+       PIOA,
+       PIOB,
+       PIOC,
+       PIOD,
+};
+
+enum {
+       FUNC_A,
+       FUNC_B,
+};
+
+unsigned long at32ap7000_osc_rates[3] = {
+       [0] = 32768,
+       /* FIXME: these are ATSTK1002-specific */
+       [1] = 20000000,
+       [2] = 12000000,
+};
+
+static unsigned long osc_get_rate(struct clk *clk)
+{
+       return at32ap7000_osc_rates[clk->index];
+}
+
+static unsigned long pll_get_rate(struct clk *clk, unsigned long control)
+{
+       unsigned long div, mul, rate;
+
+       if (!(control & SM_BIT(PLLEN)))
+               return 0;
+
+       div = SM_BFEXT(PLLDIV, control) + 1;
+       mul = SM_BFEXT(PLLMUL, control) + 1;
+
+       rate = clk->parent->get_rate(clk->parent);
+       rate = (rate + div / 2) / div;
+       rate *= mul;
+
+       return rate;
+}
+
+static unsigned long pll0_get_rate(struct clk *clk)
+{
+       u32 control;
+
+       control = sm_readl(&system_manager, PM_PLL0);
+
+       return pll_get_rate(clk, control);
+}
+
+static unsigned long pll1_get_rate(struct clk *clk)
+{
+       u32 control;
+
+       control = sm_readl(&system_manager, PM_PLL1);
+
+       return pll_get_rate(clk, control);
+}
+
+/*
+ * The AT32AP7000 has five primary clock sources: One 32kHz
+ * oscillator, two crystal oscillators and two PLLs.
+ */
+static struct clk osc32k = {
+       .name           = "osc32k",
+       .get_rate       = osc_get_rate,
+       .users          = 1,
+       .index          = 0,
+};
+static struct clk osc0 = {
+       .name           = "osc0",
+       .get_rate       = osc_get_rate,
+       .users          = 1,
+       .index          = 1,
+};
+static struct clk osc1 = {
+       .name           = "osc1",
+       .get_rate       = osc_get_rate,
+       .index          = 2,
+};
+static struct clk pll0 = {
+       .name           = "pll0",
+       .get_rate       = pll0_get_rate,
+       .parent         = &osc0,
+};
+static struct clk pll1 = {
+       .name           = "pll1",
+       .get_rate       = pll1_get_rate,
+       .parent         = &osc0,
+};
+
+/*
+ * The main clock can be either osc0 or pll0.  The boot loader may
+ * have chosen one for us, so we don't really know which one until we
+ * have a look at the SM.
+ */
+static struct clk *main_clock;
+
+/*
+ * Synchronous clocks are generated from the main clock. The clocks
+ * must satisfy the constraint
+ *   fCPU >= fHSB >= fPB
+ * i.e. each clock must not be faster than its parent.
+ */
+static unsigned long bus_clk_get_rate(struct clk *clk, unsigned int shift)
+{
+       return main_clock->get_rate(main_clock) >> shift;
+};
+
+static void cpu_clk_mode(struct clk *clk, int enabled)
+{
+       struct at32_sm *sm = &system_manager;
+       unsigned long flags;
+       u32 mask;
+
+       spin_lock_irqsave(&sm->lock, flags);
+       mask = sm_readl(sm, PM_CPU_MASK);
+       if (enabled)
+               mask |= 1 << clk->index;
+       else
+               mask &= ~(1 << clk->index);
+       sm_writel(sm, PM_CPU_MASK, mask);
+       spin_unlock_irqrestore(&sm->lock, flags);
+}
+
+static unsigned long cpu_clk_get_rate(struct clk *clk)
+{
+       unsigned long cksel, shift = 0;
+
+       cksel = sm_readl(&system_manager, PM_CKSEL);
+       if (cksel & SM_BIT(CPUDIV))
+               shift = SM_BFEXT(CPUSEL, cksel) + 1;
+
+       return bus_clk_get_rate(clk, shift);
+}
+
+static void hsb_clk_mode(struct clk *clk, int enabled)
+{
+       struct at32_sm *sm = &system_manager;
+       unsigned long flags;
+       u32 mask;
+
+       spin_lock_irqsave(&sm->lock, flags);
+       mask = sm_readl(sm, PM_HSB_MASK);
+       if (enabled)
+               mask |= 1 << clk->index;
+       else
+               mask &= ~(1 << clk->index);
+       sm_writel(sm, PM_HSB_MASK, mask);
+       spin_unlock_irqrestore(&sm->lock, flags);
+}
+
+static unsigned long hsb_clk_get_rate(struct clk *clk)
+{
+       unsigned long cksel, shift = 0;
+
+       cksel = sm_readl(&system_manager, PM_CKSEL);
+       if (cksel & SM_BIT(HSBDIV))
+               shift = SM_BFEXT(HSBSEL, cksel) + 1;
+
+       return bus_clk_get_rate(clk, shift);
+}
+
+static void pba_clk_mode(struct clk *clk, int enabled)
+{
+       struct at32_sm *sm = &system_manager;
+       unsigned long flags;
+       u32 mask;
+
+       spin_lock_irqsave(&sm->lock, flags);
+       mask = sm_readl(sm, PM_PBA_MASK);
+       if (enabled)
+               mask |= 1 << clk->index;
+       else
+               mask &= ~(1 << clk->index);
+       sm_writel(sm, PM_PBA_MASK, mask);
+       spin_unlock_irqrestore(&sm->lock, flags);
+}
+
+static unsigned long pba_clk_get_rate(struct clk *clk)
+{
+       unsigned long cksel, shift = 0;
+
+       cksel = sm_readl(&system_manager, PM_CKSEL);
+       if (cksel & SM_BIT(PBADIV))
+               shift = SM_BFEXT(PBASEL, cksel) + 1;
+
+       return bus_clk_get_rate(clk, shift);
+}
+
+static void pbb_clk_mode(struct clk *clk, int enabled)
+{
+       struct at32_sm *sm = &system_manager;
+       unsigned long flags;
+       u32 mask;
+
+       spin_lock_irqsave(&sm->lock, flags);
+       mask = sm_readl(sm, PM_PBB_MASK);
+       if (enabled)
+               mask |= 1 << clk->index;
+       else
+               mask &= ~(1 << clk->index);
+       sm_writel(sm, PM_PBB_MASK, mask);
+       spin_unlock_irqrestore(&sm->lock, flags);
+}
+
+static unsigned long pbb_clk_get_rate(struct clk *clk)
+{
+       unsigned long cksel, shift = 0;
+
+       cksel = sm_readl(&system_manager, PM_CKSEL);
+       if (cksel & SM_BIT(PBBDIV))
+               shift = SM_BFEXT(PBBSEL, cksel) + 1;
+
+       return bus_clk_get_rate(clk, shift);
+}
+
+static struct clk cpu_clk = {
+       .name           = "cpu",
+       .get_rate       = cpu_clk_get_rate,
+       .users          = 1,
+};
+static struct clk hsb_clk = {
+       .name           = "hsb",
+       .parent         = &cpu_clk,
+       .get_rate       = hsb_clk_get_rate,
+};
+static struct clk pba_clk = {
+       .name           = "pba",
+       .parent         = &hsb_clk,
+       .mode           = hsb_clk_mode,
+       .get_rate       = pba_clk_get_rate,
+       .index          = 1,
+};
+static struct clk pbb_clk = {
+       .name           = "pbb",
+       .parent         = &hsb_clk,
+       .mode           = hsb_clk_mode,
+       .get_rate       = pbb_clk_get_rate,
+       .users          = 1,
+       .index          = 2,
+};
+
+/* --------------------------------------------------------------------
+ *  Generic Clock operations
+ * -------------------------------------------------------------------- */
+
+static void genclk_mode(struct clk *clk, int enabled)
+{
+       u32 control;
+
+       BUG_ON(clk->index > 7);
+
+       control = sm_readl(&system_manager, PM_GCCTRL + 4 * clk->index);
+       if (enabled)
+               control |= SM_BIT(CEN);
+       else
+               control &= ~SM_BIT(CEN);
+       sm_writel(&system_manager, PM_GCCTRL + 4 * clk->index, control);
+}
+
+static unsigned long genclk_get_rate(struct clk *clk)
+{
+       u32 control;
+       unsigned long div = 1;
+
+       BUG_ON(clk->index > 7);
+
+       if (!clk->parent)
+               return 0;
+
+       control = sm_readl(&system_manager, PM_GCCTRL + 4 * clk->index);
+       if (control & SM_BIT(DIVEN))
+               div = 2 * (SM_BFEXT(DIV, control) + 1);
+
+       return clk->parent->get_rate(clk->parent) / div;
+}
+
+static long genclk_set_rate(struct clk *clk, unsigned long rate, int apply)
+{
+       u32 control;
+       unsigned long parent_rate, actual_rate, div;
+
+       BUG_ON(clk->index > 7);
+
+       if (!clk->parent)
+               return 0;
+
+       parent_rate = clk->parent->get_rate(clk->parent);
+       control = sm_readl(&system_manager, PM_GCCTRL + 4 * clk->index);
+
+       if (rate > 3 * parent_rate / 4) {
+               actual_rate = parent_rate;
+               control &= ~SM_BIT(DIVEN);
+       } else {
+               div = (parent_rate + rate) / (2 * rate) - 1;
+               control = SM_BFINS(DIV, div, control) | SM_BIT(DIVEN);
+               actual_rate = parent_rate / (2 * (div + 1));
+       }
+
+       printk("clk %s: new rate %lu (actual rate %lu)\n",
+              clk->name, rate, actual_rate);
+
+       if (apply)
+               sm_writel(&system_manager, PM_GCCTRL + 4 * clk->index,
+                         control);
+
+       return actual_rate;
+}
+
+int genclk_set_parent(struct clk *clk, struct clk *parent)
+{
+       u32 control;
+
+       BUG_ON(clk->index > 7);
+
+       printk("clk %s: new parent %s (was %s)\n",
+              clk->name, parent->name,
+              clk->parent ? clk->parent->name : "(null)");
+
+       control = sm_readl(&system_manager, PM_GCCTRL + 4 * clk->index);
+
+       if (parent == &osc1 || parent == &pll1)
+               control |= SM_BIT(OSCSEL);
+       else if (parent == &osc0 || parent == &pll0)
+               control &= ~SM_BIT(OSCSEL);
+       else
+               return -EINVAL;
+
+       if (parent == &pll0 || parent == &pll1)
+               control |= SM_BIT(PLLSEL);
+       else
+               control &= ~SM_BIT(PLLSEL);
+
+       sm_writel(&system_manager, PM_GCCTRL + 4 * clk->index, control);
+       clk->parent = parent;
+
+       return 0;
+}
+
+/* --------------------------------------------------------------------
+ *  System peripherals
+ * -------------------------------------------------------------------- */
+static struct resource sm_resource[] = {
+       PBMEM(0xfff00000),
+       NAMED_IRQ(19, "eim"),
+       NAMED_IRQ(20, "pm"),
+       NAMED_IRQ(21, "rtc"),
+};
+struct platform_device at32_sm_device = {
+       .name           = "sm",
+       .id             = 0,
+       .resource       = sm_resource,
+       .num_resources  = ARRAY_SIZE(sm_resource),
+};
+DEV_CLK(pclk, at32_sm, pbb, 0);
+
+static struct resource intc0_resource[] = {
+       PBMEM(0xfff00400),
+};
+struct platform_device at32_intc0_device = {
+       .name           = "intc",
+       .id             = 0,
+       .resource       = intc0_resource,
+       .num_resources  = ARRAY_SIZE(intc0_resource),
+};
+DEV_CLK(pclk, at32_intc0, pbb, 1);
+
+static struct clk ebi_clk = {
+       .name           = "ebi",
+       .parent         = &hsb_clk,
+       .mode           = hsb_clk_mode,
+       .get_rate       = hsb_clk_get_rate,
+       .users          = 1,
+};
+static struct clk hramc_clk = {
+       .name           = "hramc",
+       .parent         = &hsb_clk,
+       .mode           = hsb_clk_mode,
+       .get_rate       = hsb_clk_get_rate,
+       .users          = 1,
+};
+
+static struct platform_device pdc_device = {
+       .name           = "pdc",
+       .id             = 0,
+};
+DEV_CLK(hclk, pdc, hsb, 4);
+DEV_CLK(pclk, pdc, pba, 16);
+
+static struct clk pico_clk = {
+       .name           = "pico",
+       .parent         = &cpu_clk,
+       .mode           = cpu_clk_mode,
+       .get_rate       = cpu_clk_get_rate,
+       .users          = 1,
+};
+
+/* --------------------------------------------------------------------
+ *  PIO
+ * -------------------------------------------------------------------- */
+
+static struct resource pio0_resource[] = {
+       PBMEM(0xffe02800),
+       IRQ(13),
+};
+DEFINE_DEV(pio, 0);
+DEV_CLK(mck, pio0, pba, 10);
+
+static struct resource pio1_resource[] = {
+       PBMEM(0xffe02c00),
+       IRQ(14),
+};
+DEFINE_DEV(pio, 1);
+DEV_CLK(mck, pio1, pba, 11);
+
+static struct resource pio2_resource[] = {
+       PBMEM(0xffe03000),
+       IRQ(15),
+};
+DEFINE_DEV(pio, 2);
+DEV_CLK(mck, pio2, pba, 12);
+
+static struct resource pio3_resource[] = {
+       PBMEM(0xffe03400),
+       IRQ(16),
+};
+DEFINE_DEV(pio, 3);
+DEV_CLK(mck, pio3, pba, 13);
+
+void __init at32_add_system_devices(void)
+{
+       system_manager.eim_first_irq = NR_INTERNAL_IRQS;
+
+       platform_device_register(&at32_sm_device);
+       platform_device_register(&at32_intc0_device);
+       platform_device_register(&pdc_device);
+
+       platform_device_register(&pio0_device);
+       platform_device_register(&pio1_device);
+       platform_device_register(&pio2_device);
+       platform_device_register(&pio3_device);
+}
+
+/* --------------------------------------------------------------------
+ *  USART
+ * -------------------------------------------------------------------- */
+
+static struct resource usart0_resource[] = {
+       PBMEM(0xffe00c00),
+       IRQ(7),
+};
+DEFINE_DEV(usart, 0);
+DEV_CLK(usart, usart0, pba, 4);
+
+static struct resource usart1_resource[] = {
+       PBMEM(0xffe01000),
+       IRQ(7),
+};
+DEFINE_DEV(usart, 1);
+DEV_CLK(usart, usart1, pba, 4);
+
+static struct resource usart2_resource[] = {
+       PBMEM(0xffe01400),
+       IRQ(8),
+};
+DEFINE_DEV(usart, 2);
+DEV_CLK(usart, usart2, pba, 5);
+
+static struct resource usart3_resource[] = {
+       PBMEM(0xffe01800),
+       IRQ(9),
+};
+DEFINE_DEV(usart, 3);
+DEV_CLK(usart, usart3, pba, 6);
+
+static inline void configure_usart0_pins(void)
+{
+       portmux_set_func(PIOA,  8, FUNC_B);     /* RXD  */
+       portmux_set_func(PIOA,  9, FUNC_B);     /* TXD  */
+}
+
+static inline void configure_usart1_pins(void)
+{
+       portmux_set_func(PIOA, 17, FUNC_A);     /* RXD  */
+       portmux_set_func(PIOA, 18, FUNC_A);     /* TXD  */
+}
+
+static inline void configure_usart2_pins(void)
+{
+       portmux_set_func(PIOB, 26, FUNC_B);     /* RXD  */
+       portmux_set_func(PIOB, 27, FUNC_B);     /* TXD  */
+}
+
+static inline void configure_usart3_pins(void)
+{
+       portmux_set_func(PIOB, 18, FUNC_B);     /* RXD  */
+       portmux_set_func(PIOB, 17, FUNC_B);     /* TXD  */
+}
+
+static struct platform_device *setup_usart(unsigned int id)
+{
+       struct platform_device *pdev;
+
+       switch (id) {
+       case 0:
+               pdev = &usart0_device;
+               configure_usart0_pins();
+               break;
+       case 1:
+               pdev = &usart1_device;
+               configure_usart1_pins();
+               break;
+       case 2:
+               pdev = &usart2_device;
+               configure_usart2_pins();
+               break;
+       case 3:
+               pdev = &usart3_device;
+               configure_usart3_pins();
+               break;
+       default:
+               pdev = NULL;
+               break;
+       }
+
+       return pdev;
+}
+
+struct platform_device *__init at32_add_device_usart(unsigned int id)
+{
+       struct platform_device *pdev;
+
+       pdev = setup_usart(id);
+       if (pdev)
+               platform_device_register(pdev);
+
+       return pdev;
+}
+
+struct platform_device *at91_default_console_device;
+
+void __init at32_setup_serial_console(unsigned int usart_id)
+{
+       at91_default_console_device = setup_usart(usart_id);
+}
+
+/* --------------------------------------------------------------------
+ *  Ethernet
+ * -------------------------------------------------------------------- */
+
+static struct eth_platform_data macb0_data;
+static struct resource macb0_resource[] = {
+       PBMEM(0xfff01800),
+       IRQ(25),
+};
+DEFINE_DEV_DATA(macb, 0);
+DEV_CLK(hclk, macb0, hsb, 8);
+DEV_CLK(pclk, macb0, pbb, 6);
+
+struct platform_device *__init
+at32_add_device_eth(unsigned int id, struct eth_platform_data *data)
+{
+       struct platform_device *pdev;
+
+       switch (id) {
+       case 0:
+               pdev = &macb0_device;
+
+               portmux_set_func(PIOC,  3, FUNC_A);     /* TXD0 */
+               portmux_set_func(PIOC,  4, FUNC_A);     /* TXD1 */
+               portmux_set_func(PIOC,  7, FUNC_A);     /* TXEN */
+               portmux_set_func(PIOC,  8, FUNC_A);     /* TXCK */
+               portmux_set_func(PIOC,  9, FUNC_A);     /* RXD0 */
+               portmux_set_func(PIOC, 10, FUNC_A);     /* RXD1 */
+               portmux_set_func(PIOC, 13, FUNC_A);     /* RXER */
+               portmux_set_func(PIOC, 15, FUNC_A);     /* RXDV */
+               portmux_set_func(PIOC, 16, FUNC_A);     /* MDC  */
+               portmux_set_func(PIOC, 17, FUNC_A);     /* MDIO */
+
+               if (!data->is_rmii) {
+                       portmux_set_func(PIOC,  0, FUNC_A);     /* COL  */
+                       portmux_set_func(PIOC,  1, FUNC_A);     /* CRS  */
+                       portmux_set_func(PIOC,  2, FUNC_A);     /* TXER */
+                       portmux_set_func(PIOC,  5, FUNC_A);     /* TXD2 */
+                       portmux_set_func(PIOC,  6, FUNC_A);     /* TXD3 */
+                       portmux_set_func(PIOC, 11, FUNC_A);     /* RXD2 */
+                       portmux_set_func(PIOC, 12, FUNC_A);     /* RXD3 */
+                       portmux_set_func(PIOC, 14, FUNC_A);     /* RXCK */
+                       portmux_set_func(PIOC, 18, FUNC_A);     /* SPD  */
+               }
+               break;
+
+       default:
+               return NULL;
+       }
+
+       memcpy(pdev->dev.platform_data, data, sizeof(struct eth_platform_data));
+       platform_device_register(pdev);
+
+       return pdev;
+}
+
+/* --------------------------------------------------------------------
+ *  SPI
+ * -------------------------------------------------------------------- */
+static struct resource spi0_resource[] = {
+       PBMEM(0xffe00000),
+       IRQ(3),
+};
+DEFINE_DEV(spi, 0);
+DEV_CLK(mck, spi0, pba, 0);
+
+struct platform_device *__init at32_add_device_spi(unsigned int id)
+{
+       struct platform_device *pdev;
+
+       switch (id) {
+       case 0:
+               pdev = &spi0_device;
+               portmux_set_func(PIOA,  0, FUNC_A);     /* MISO  */
+               portmux_set_func(PIOA,  1, FUNC_A);     /* MOSI  */
+               portmux_set_func(PIOA,  2, FUNC_A);     /* SCK   */
+               portmux_set_func(PIOA,  3, FUNC_A);     /* NPCS0 */
+               portmux_set_func(PIOA,  4, FUNC_A);     /* NPCS1 */
+               portmux_set_func(PIOA,  5, FUNC_A);     /* NPCS2 */
+               break;
+
+       default:
+               return NULL;
+       }
+
+       platform_device_register(pdev);
+       return pdev;
+}
+
+/* --------------------------------------------------------------------
+ *  LCDC
+ * -------------------------------------------------------------------- */
+static struct lcdc_platform_data lcdc0_data;
+static struct resource lcdc0_resource[] = {
+       {
+               .start          = 0xff000000,
+               .end            = 0xff000fff,
+               .flags          = IORESOURCE_MEM,
+       },
+       IRQ(1),
+};
+DEFINE_DEV_DATA(lcdc, 0);
+DEV_CLK(hclk, lcdc0, hsb, 7);
+static struct clk lcdc0_pixclk = {
+       .name           = "pixclk",
+       .dev            = &lcdc0_device.dev,
+       .mode           = genclk_mode,
+       .get_rate       = genclk_get_rate,
+       .set_rate       = genclk_set_rate,
+       .set_parent     = genclk_set_parent,
+       .index          = 7,
+};
+
+struct platform_device *__init
+at32_add_device_lcdc(unsigned int id, struct lcdc_platform_data *data)
+{
+       struct platform_device *pdev;
+
+       switch (id) {
+       case 0:
+               pdev = &lcdc0_device;
+               portmux_set_func(PIOC, 19, FUNC_A);     /* CC     */
+               portmux_set_func(PIOC, 20, FUNC_A);     /* HSYNC  */
+               portmux_set_func(PIOC, 21, FUNC_A);     /* PCLK   */
+               portmux_set_func(PIOC, 22, FUNC_A);     /* VSYNC  */
+               portmux_set_func(PIOC, 23, FUNC_A);     /* DVAL   */
+               portmux_set_func(PIOC, 24, FUNC_A);     /* MODE   */
+               portmux_set_func(PIOC, 25, FUNC_A);     /* PWR    */
+               portmux_set_func(PIOC, 26, FUNC_A);     /* DATA0  */
+               portmux_set_func(PIOC, 27, FUNC_A);     /* DATA1  */
+               portmux_set_func(PIOC, 28, FUNC_A);     /* DATA2  */
+               portmux_set_func(PIOC, 29, FUNC_A);     /* DATA3  */
+               portmux_set_func(PIOC, 30, FUNC_A);     /* DATA4  */
+               portmux_set_func(PIOC, 31, FUNC_A);     /* DATA5  */
+               portmux_set_func(PIOD,  0, FUNC_A);     /* DATA6  */
+               portmux_set_func(PIOD,  1, FUNC_A);     /* DATA7  */
+               portmux_set_func(PIOD,  2, FUNC_A);     /* DATA8  */
+               portmux_set_func(PIOD,  3, FUNC_A);     /* DATA9  */
+               portmux_set_func(PIOD,  4, FUNC_A);     /* DATA10 */
+               portmux_set_func(PIOD,  5, FUNC_A);     /* DATA11 */
+               portmux_set_func(PIOD,  6, FUNC_A);     /* DATA12 */
+               portmux_set_func(PIOD,  7, FUNC_A);     /* DATA13 */
+               portmux_set_func(PIOD,  8, FUNC_A);     /* DATA14 */
+               portmux_set_func(PIOD,  9, FUNC_A);     /* DATA15 */
+               portmux_set_func(PIOD, 10, FUNC_A);     /* DATA16 */
+               portmux_set_func(PIOD, 11, FUNC_A);     /* DATA17 */
+               portmux_set_func(PIOD, 12, FUNC_A);     /* DATA18 */
+               portmux_set_func(PIOD, 13, FUNC_A);     /* DATA19 */
+               portmux_set_func(PIOD, 14, FUNC_A);     /* DATA20 */
+               portmux_set_func(PIOD, 15, FUNC_A);     /* DATA21 */
+               portmux_set_func(PIOD, 16, FUNC_A);     /* DATA22 */
+               portmux_set_func(PIOD, 17, FUNC_A);     /* DATA23 */
+
+               clk_set_parent(&lcdc0_pixclk, &pll0);
+               clk_set_rate(&lcdc0_pixclk, clk_get_rate(&pll0));
+               break;
+
+       default:
+               return NULL;
+       }
+
+       memcpy(pdev->dev.platform_data, data,
+              sizeof(struct lcdc_platform_data));
+
+       platform_device_register(pdev);
+       return pdev;
+}
+
+struct clk *at32_clock_list[] = {
+       &osc32k,
+       &osc0,
+       &osc1,
+       &pll0,
+       &pll1,
+       &cpu_clk,
+       &hsb_clk,
+       &pba_clk,
+       &pbb_clk,
+       &at32_sm_pclk,
+       &at32_intc0_pclk,
+       &ebi_clk,
+       &hramc_clk,
+       &pdc_hclk,
+       &pdc_pclk,
+       &pico_clk,
+       &pio0_mck,
+       &pio1_mck,
+       &pio2_mck,
+       &pio3_mck,
+       &usart0_usart,
+       &usart1_usart,
+       &usart2_usart,
+       &usart3_usart,
+       &macb0_hclk,
+       &macb0_pclk,
+       &spi0_mck,
+       &lcdc0_hclk,
+       &lcdc0_pixclk,
+};
+unsigned int at32_nr_clocks = ARRAY_SIZE(at32_clock_list);
+
+void __init at32_portmux_init(void)
+{
+       at32_init_pio(&pio0_device);
+       at32_init_pio(&pio1_device);
+       at32_init_pio(&pio2_device);
+       at32_init_pio(&pio3_device);
+}
+
+void __init at32_clock_init(void)
+{
+       struct at32_sm *sm = &system_manager;
+       u32 cpu_mask = 0, hsb_mask = 0, pba_mask = 0, pbb_mask = 0;
+       int i;
+
+       if (sm_readl(sm, PM_MCCTRL) & SM_BIT(PLLSEL))
+               main_clock = &pll0;
+       else
+               main_clock = &osc0;
+
+       if (sm_readl(sm, PM_PLL0) & SM_BIT(PLLOSC))
+               pll0.parent = &osc1;
+       if (sm_readl(sm, PM_PLL1) & SM_BIT(PLLOSC))
+               pll1.parent = &osc1;
+
+       /*
+        * Turn on all clocks that have at least one user already, and
+        * turn off everything else. We only do this for module
+        * clocks, and even though it isn't particularly pretty to
+        * check the address of the mode function, it should do the
+        * trick...
+        */
+       for (i = 0; i < ARRAY_SIZE(at32_clock_list); i++) {
+               struct clk *clk = at32_clock_list[i];
+
+               if (clk->mode == &cpu_clk_mode)
+                       cpu_mask |= 1 << clk->index;
+               else if (clk->mode == &hsb_clk_mode)
+                       hsb_mask |= 1 << clk->index;
+               else if (clk->mode == &pba_clk_mode)
+                       pba_mask |= 1 << clk->index;
+               else if (clk->mode == &pbb_clk_mode)
+                       pbb_mask |= 1 << clk->index;
+       }
+
+       sm_writel(sm, PM_CPU_MASK, cpu_mask);
+       sm_writel(sm, PM_HSB_MASK, hsb_mask);
+       sm_writel(sm, PM_PBA_MASK, pba_mask);
+       sm_writel(sm, PM_PBB_MASK, pbb_mask);
+}
diff --git a/arch/avr32/mach-at32ap/clock.c b/arch/avr32/mach-at32ap/clock.c
new file mode 100644 (file)
index 0000000..3d0d109
--- /dev/null
@@ -0,0 +1,148 @@
+/*
+ * Clock management for AT32AP CPUs
+ *
+ * Copyright (C) 2006 Atmel Corporation
+ *
+ * Based on arch/arm/mach-at91rm9200/clock.c
+ *   Copyright (C) 2005 David Brownell
+ *   Copyright (C) 2005 Ivan Kokshaysky
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/clk.h>
+#include <linux/err.h>
+#include <linux/device.h>
+#include <linux/string.h>
+
+#include "clock.h"
+
+static spinlock_t clk_lock = SPIN_LOCK_UNLOCKED;
+
+struct clk *clk_get(struct device *dev, const char *id)
+{
+       int i;
+
+       for (i = 0; i < at32_nr_clocks; i++) {
+               struct clk *clk = at32_clock_list[i];
+
+               if (clk->dev == dev && strcmp(id, clk->name) == 0)
+                       return clk;
+       }
+
+       return ERR_PTR(-ENOENT);
+}
+EXPORT_SYMBOL(clk_get);
+
+void clk_put(struct clk *clk)
+{
+       /* clocks are static for now, we can't free them */
+}
+EXPORT_SYMBOL(clk_put);
+
+static void __clk_enable(struct clk *clk)
+{
+       if (clk->parent)
+               __clk_enable(clk->parent);
+       if (clk->users++ == 0 && clk->mode)
+               clk->mode(clk, 1);
+}
+
+int clk_enable(struct clk *clk)
+{
+       unsigned long flags;
+
+       spin_lock_irqsave(&clk_lock, flags);
+       __clk_enable(clk);
+       spin_unlock_irqrestore(&clk_lock, flags);
+
+       return 0;
+}
+EXPORT_SYMBOL(clk_enable);
+
+static void __clk_disable(struct clk *clk)
+{
+       BUG_ON(clk->users == 0);
+
+       if (--clk->users == 0 && clk->mode)
+               clk->mode(clk, 0);
+       if (clk->parent)
+               __clk_disable(clk->parent);
+}
+
+void clk_disable(struct clk *clk)
+{
+       unsigned long flags;
+
+       spin_lock_irqsave(&clk_lock, flags);
+       __clk_disable(clk);
+       spin_unlock_irqrestore(&clk_lock, flags);
+}
+EXPORT_SYMBOL(clk_disable);
+
+unsigned long clk_get_rate(struct clk *clk)
+{
+       unsigned long flags;
+       unsigned long rate;
+
+       spin_lock_irqsave(&clk_lock, flags);
+       rate = clk->get_rate(clk);
+       spin_unlock_irqrestore(&clk_lock, flags);
+
+       return rate;
+}
+EXPORT_SYMBOL(clk_get_rate);
+
+long clk_round_rate(struct clk *clk, unsigned long rate)
+{
+       unsigned long flags, actual_rate;
+
+       if (!clk->set_rate)
+               return -ENOSYS;
+
+       spin_lock_irqsave(&clk_lock, flags);
+       actual_rate = clk->set_rate(clk, rate, 0);
+       spin_unlock_irqrestore(&clk_lock, flags);
+
+       return actual_rate;
+}
+EXPORT_SYMBOL(clk_round_rate);
+
+int clk_set_rate(struct clk *clk, unsigned long rate)
+{
+       unsigned long flags;
+       long ret;
+
+       if (!clk->set_rate)
+               return -ENOSYS;
+
+       spin_lock_irqsave(&clk_lock, flags);
+       ret = clk->set_rate(clk, rate, 1);
+       spin_unlock_irqrestore(&clk_lock, flags);
+
+       return (ret < 0) ? ret : 0;
+}
+EXPORT_SYMBOL(clk_set_rate);
+
+int clk_set_parent(struct clk *clk, struct clk *parent)
+{
+       unsigned long flags;
+       int ret;
+
+       if (!clk->set_parent)
+               return -ENOSYS;
+
+       spin_lock_irqsave(&clk_lock, flags);
+       ret = clk->set_parent(clk, parent);
+       spin_unlock_irqrestore(&clk_lock, flags);
+
+       return ret;
+}
+EXPORT_SYMBOL(clk_set_parent);
+
+struct clk *clk_get_parent(struct clk *clk)
+{
+       return clk->parent;
+}
+EXPORT_SYMBOL(clk_get_parent);
diff --git a/arch/avr32/mach-at32ap/clock.h b/arch/avr32/mach-at32ap/clock.h
new file mode 100644 (file)
index 0000000..f953f04
--- /dev/null
@@ -0,0 +1,30 @@
+/*
+ * Clock management for AT32AP CPUs
+ *
+ * Copyright (C) 2006 Atmel Corporation
+ *
+ * Based on arch/arm/mach-at91rm9200/clock.c
+ *   Copyright (C) 2005 David Brownell
+ *   Copyright (C) 2005 Ivan Kokshaysky
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/clk.h>
+
+struct clk {
+       const char      *name;          /* Clock name/function */
+       struct device   *dev;           /* Device the clock is used by */
+       struct clk      *parent;        /* Parent clock, if any */
+       void            (*mode)(struct clk *clk, int enabled);
+       unsigned long   (*get_rate)(struct clk *clk);
+       long            (*set_rate)(struct clk *clk, unsigned long rate,
+                                   int apply);
+       int             (*set_parent)(struct clk *clk, struct clk *parent);
+       u16             users;          /* Enabled if non-zero */
+       u16             index;          /* Sibling index */
+};
+
+extern struct clk *at32_clock_list[];
+extern unsigned int at32_nr_clocks;
diff --git a/arch/avr32/mach-at32ap/extint.c b/arch/avr32/mach-at32ap/extint.c
new file mode 100644 (file)
index 0000000..7da9c5f
--- /dev/null
@@ -0,0 +1,171 @@
+/*
+ * External interrupt handling for AT32AP CPUs
+ *
+ * Copyright (C) 2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/platform_device.h>
+#include <linux/random.h>
+
+#include <asm/io.h>
+
+#include <asm/arch/sm.h>
+
+#include "sm.h"
+
+static void eim_ack_irq(unsigned int irq)
+{
+       struct at32_sm *sm = get_irq_chip_data(irq);
+       sm_writel(sm, EIM_ICR, 1 << (irq - sm->eim_first_irq));
+}
+
+static void eim_mask_irq(unsigned int irq)
+{
+       struct at32_sm *sm = get_irq_chip_data(irq);
+       sm_writel(sm, EIM_IDR, 1 << (irq - sm->eim_first_irq));
+}
+
+static void eim_mask_ack_irq(unsigned int irq)
+{
+       struct at32_sm *sm = get_irq_chip_data(irq);
+       sm_writel(sm, EIM_ICR, 1 << (irq - sm->eim_first_irq));
+       sm_writel(sm, EIM_IDR, 1 << (irq - sm->eim_first_irq));
+}
+
+static void eim_unmask_irq(unsigned int irq)
+{
+       struct at32_sm *sm = get_irq_chip_data(irq);
+       sm_writel(sm, EIM_IER, 1 << (irq - sm->eim_first_irq));
+}
+
+static int eim_set_irq_type(unsigned int irq, unsigned int flow_type)
+{
+       struct at32_sm *sm = get_irq_chip_data(irq);
+       unsigned int i = irq - sm->eim_first_irq;
+       u32 mode, edge, level;
+       unsigned long flags;
+       int ret = 0;
+
+       flow_type &= IRQ_TYPE_SENSE_MASK;
+
+       spin_lock_irqsave(&sm->lock, flags);
+
+       mode = sm_readl(sm, EIM_MODE);
+       edge = sm_readl(sm, EIM_EDGE);
+       level = sm_readl(sm, EIM_LEVEL);
+
+       switch (flow_type) {
+       case IRQ_TYPE_LEVEL_LOW:
+               mode |= 1 << i;
+               level &= ~(1 << i);
+               break;
+       case IRQ_TYPE_LEVEL_HIGH:
+               mode |= 1 << i;
+               level |= 1 << i;
+               break;
+       case IRQ_TYPE_EDGE_RISING:
+               mode &= ~(1 << i);
+               edge |= 1 << i;
+               break;
+       case IRQ_TYPE_EDGE_FALLING:
+               mode &= ~(1 << i);
+               edge &= ~(1 << i);
+               break;
+       default:
+               ret = -EINVAL;
+               break;
+       }
+
+       sm_writel(sm, EIM_MODE, mode);
+       sm_writel(sm, EIM_EDGE, edge);
+       sm_writel(sm, EIM_LEVEL, level);
+
+       spin_unlock_irqrestore(&sm->lock, flags);
+
+       return ret;
+}
+
+struct irq_chip eim_chip = {
+       .name           = "eim",
+       .ack            = eim_ack_irq,
+       .mask           = eim_mask_irq,
+       .mask_ack       = eim_mask_ack_irq,
+       .unmask         = eim_unmask_irq,
+       .set_type       = eim_set_irq_type,
+};
+
+static void demux_eim_irq(unsigned int irq, struct irq_desc *desc,
+                         struct pt_regs *regs)
+{
+       struct at32_sm *sm = desc->handler_data;
+       struct irq_desc *ext_desc;
+       unsigned long status, pending;
+       unsigned int i, ext_irq;
+
+       spin_lock(&sm->lock);
+
+       status = sm_readl(sm, EIM_ISR);
+       pending = status & sm_readl(sm, EIM_IMR);
+
+       while (pending) {
+               i = fls(pending) - 1;
+               pending &= ~(1 << i);
+
+               ext_irq = i + sm->eim_first_irq;
+               ext_desc = irq_desc + ext_irq;
+               ext_desc->handle_irq(ext_irq, ext_desc, regs);
+       }
+
+       spin_unlock(&sm->lock);
+}
+
+static int __init eim_init(void)
+{
+       struct at32_sm *sm = &system_manager;
+       unsigned int i;
+       unsigned int nr_irqs;
+       unsigned int int_irq;
+       u32 pattern;
+
+       /*
+        * The EIM is really the same module as SM, so register
+        * mapping, etc. has been taken care of already.
+        */
+
+       /*
+        * Find out how many interrupt lines that are actually
+        * implemented in hardware.
+        */
+       sm_writel(sm, EIM_IDR, ~0UL);
+       sm_writel(sm, EIM_MODE, ~0UL);
+       pattern = sm_readl(sm, EIM_MODE);
+       nr_irqs = fls(pattern);
+
+       sm->eim_chip = &eim_chip;
+
+       for (i = 0; i < nr_irqs; i++) {
+               set_irq_chip(sm->eim_first_irq + i, &eim_chip);
+               set_irq_chip_data(sm->eim_first_irq + i, sm);
+       }
+
+       int_irq = platform_get_irq_byname(sm->pdev, "eim");
+
+       set_irq_chained_handler(int_irq, demux_eim_irq);
+       set_irq_data(int_irq, sm);
+
+       printk("EIM: External Interrupt Module at 0x%p, IRQ %u\n",
+              sm->regs, int_irq);
+       printk("EIM: Handling %u external IRQs, starting with IRQ %u\n",
+              nr_irqs, sm->eim_first_irq);
+
+       return 0;
+}
+arch_initcall(eim_init);
diff --git a/arch/avr32/mach-at32ap/intc.c b/arch/avr32/mach-at32ap/intc.c
new file mode 100644 (file)
index 0000000..74f8c9f
--- /dev/null
@@ -0,0 +1,133 @@
+/*
+ * Copyright (C) 2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/clk.h>
+#include <linux/err.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/platform_device.h>
+
+#include <asm/io.h>
+
+#include "intc.h"
+
+struct intc {
+       void __iomem    *regs;
+       struct irq_chip chip;
+};
+
+extern struct platform_device at32_intc0_device;
+
+/*
+ * TODO: We may be able to implement mask/unmask by setting IxM flags
+ * in the status register.
+ */
+static void intc_mask_irq(unsigned int irq)
+{
+
+}
+
+static void intc_unmask_irq(unsigned int irq)
+{
+
+}
+
+static struct intc intc0 = {
+       .chip = {
+               .name           = "intc",
+               .mask           = intc_mask_irq,
+               .unmask         = intc_unmask_irq,
+       },
+};
+
+/*
+ * All interrupts go via intc at some point.
+ */
+asmlinkage void do_IRQ(int level, struct pt_regs *regs)
+{
+       struct irq_desc *desc;
+       unsigned int irq;
+       unsigned long status_reg;
+
+       local_irq_disable();
+
+       irq_enter();
+
+       irq = intc_readl(&intc0, INTCAUSE0 - 4 * level);
+       desc = irq_desc + irq;
+       desc->handle_irq(irq, desc, regs);
+
+       /*
+        * Clear all interrupt level masks so that we may handle
+        * interrupts during softirq processing.  If this is a nested
+        * interrupt, interrupts must stay globally disabled until we
+        * return.
+        */
+       status_reg = sysreg_read(SR);
+       status_reg &= ~(SYSREG_BIT(I0M) | SYSREG_BIT(I1M)
+                       | SYSREG_BIT(I2M) | SYSREG_BIT(I3M));
+       sysreg_write(SR, status_reg);
+
+       irq_exit();
+}
+
+void __init init_IRQ(void)
+{
+       extern void _evba(void);
+       extern void irq_level0(void);
+       struct resource *regs;
+       struct clk *pclk;
+       unsigned int i;
+       u32 offset, readback;
+
+       regs = platform_get_resource(&at32_intc0_device, IORESOURCE_MEM, 0);
+       if (!regs) {
+               printk(KERN_EMERG "intc: no mmio resource defined\n");
+               goto fail;
+       }
+       pclk = clk_get(&at32_intc0_device.dev, "pclk");
+       if (IS_ERR(pclk)) {
+               printk(KERN_EMERG "intc: no clock defined\n");
+               goto fail;
+       }
+
+       clk_enable(pclk);
+
+       intc0.regs = ioremap(regs->start, regs->end - regs->start + 1);
+       if (!intc0.regs) {
+               printk(KERN_EMERG "intc: failed to map registers (0x%08lx)\n",
+                      (unsigned long)regs->start);
+               goto fail;
+       }
+
+       /*
+        * Initialize all interrupts to level 0 (lowest priority). The
+        * priority level may be changed by calling
+        * irq_set_priority().
+        *
+        */
+       offset = (unsigned long)&irq_level0 - (unsigned long)&_evba;
+       for (i = 0; i < NR_INTERNAL_IRQS; i++) {
+               intc_writel(&intc0, INTPR0 + 4 * i, offset);
+               readback = intc_readl(&intc0, INTPR0 + 4 * i);
+               if (readback == offset)
+                       set_irq_chip_and_handler(i, &intc0.chip,
+                                                handle_simple_irq);
+       }
+
+       /* Unmask all interrupt levels */
+       sysreg_write(SR, (sysreg_read(SR)
+                         & ~(SR_I3M | SR_I2M | SR_I1M | SR_I0M)));
+
+       return;
+
+fail:
+       panic("Interrupt controller initialization failed!\n");
+}
+
diff --git a/arch/avr32/mach-at32ap/intc.h b/arch/avr32/mach-at32ap/intc.h
new file mode 100644 (file)
index 0000000..d289ca2
--- /dev/null
@@ -0,0 +1,327 @@
+/*
+ * Automatically generated by gen-header.xsl
+ */
+#ifndef __ASM_AVR32_PERIHP_INTC_H__
+#define __ASM_AVR32_PERIHP_INTC_H__
+
+#define INTC_NUM_INT_GRPS            33
+
+#define INTC_INTPR0                  0x0
+# define INTC_INTPR0_INTLEV_OFFSET   30
+# define INTC_INTPR0_INTLEV_SIZE     2
+# define INTC_INTPR0_OFFSET_OFFSET   0
+# define INTC_INTPR0_OFFSET_SIZE     24
+#define INTC_INTREQ0                 0x100
+# define INTC_INTREQ0_IREQUEST0_OFFSET 0
+# define INTC_INTREQ0_IREQUEST0_SIZE 1
+# define INTC_INTREQ0_IREQUEST1_OFFSET 1
+# define INTC_INTREQ0_IREQUEST1_SIZE 1
+#define INTC_INTPR1                  0x4
+# define INTC_INTPR1_INTLEV_OFFSET   30
+# define INTC_INTPR1_INTLEV_SIZE     2
+# define INTC_INTPR1_OFFSET_OFFSET   0
+# define INTC_INTPR1_OFFSET_SIZE     24
+#define INTC_INTREQ1                 0x104
+# define INTC_INTREQ1_IREQUEST32_OFFSET 0
+# define INTC_INTREQ1_IREQUEST32_SIZE 1
+# define INTC_INTREQ1_IREQUEST33_OFFSET 1
+# define INTC_INTREQ1_IREQUEST33_SIZE 1
+# define INTC_INTREQ1_IREQUEST34_OFFSET 2
+# define INTC_INTREQ1_IREQUEST34_SIZE 1
+# define INTC_INTREQ1_IREQUEST35_OFFSET 3
+# define INTC_INTREQ1_IREQUEST35_SIZE 1
+# define INTC_INTREQ1_IREQUEST36_OFFSET 4
+# define INTC_INTREQ1_IREQUEST36_SIZE 1
+# define INTC_INTREQ1_IREQUEST37_OFFSET 5
+# define INTC_INTREQ1_IREQUEST37_SIZE 1
+#define INTC_INTPR2                  0x8
+# define INTC_INTPR2_INTLEV_OFFSET   30
+# define INTC_INTPR2_INTLEV_SIZE     2
+# define INTC_INTPR2_OFFSET_OFFSET   0
+# define INTC_INTPR2_OFFSET_SIZE     24
+#define INTC_INTREQ2                 0x108
+# define INTC_INTREQ2_IREQUEST64_OFFSET 0
+# define INTC_INTREQ2_IREQUEST64_SIZE 1
+# define INTC_INTREQ2_IREQUEST65_OFFSET 1
+# define INTC_INTREQ2_IREQUEST65_SIZE 1
+# define INTC_INTREQ2_IREQUEST66_OFFSET 2
+# define INTC_INTREQ2_IREQUEST66_SIZE 1
+# define INTC_INTREQ2_IREQUEST67_OFFSET 3
+# define INTC_INTREQ2_IREQUEST67_SIZE 1
+# define INTC_INTREQ2_IREQUEST68_OFFSET 4
+# define INTC_INTREQ2_IREQUEST68_SIZE 1
+#define INTC_INTPR3                  0xc
+# define INTC_INTPR3_INTLEV_OFFSET   30
+# define INTC_INTPR3_INTLEV_SIZE     2
+# define INTC_INTPR3_OFFSET_OFFSET   0
+# define INTC_INTPR3_OFFSET_SIZE     24
+#define INTC_INTREQ3                 0x10c
+# define INTC_INTREQ3_IREQUEST96_OFFSET 0
+# define INTC_INTREQ3_IREQUEST96_SIZE 1
+#define INTC_INTPR4                  0x10
+# define INTC_INTPR4_INTLEV_OFFSET   30
+# define INTC_INTPR4_INTLEV_SIZE     2
+# define INTC_INTPR4_OFFSET_OFFSET   0
+# define INTC_INTPR4_OFFSET_SIZE     24
+#define INTC_INTREQ4                 0x110
+# define INTC_INTREQ4_IREQUEST128_OFFSET 0
+# define INTC_INTREQ4_IREQUEST128_SIZE 1
+#define INTC_INTPR5                  0x14
+# define INTC_INTPR5_INTLEV_OFFSET   30
+# define INTC_INTPR5_INTLEV_SIZE     2
+# define INTC_INTPR5_OFFSET_OFFSET   0
+# define INTC_INTPR5_OFFSET_SIZE     24
+#define INTC_INTREQ5                 0x114
+# define INTC_INTREQ5_IREQUEST160_OFFSET 0
+# define INTC_INTREQ5_IREQUEST160_SIZE 1
+#define INTC_INTPR6                  0x18
+# define INTC_INTPR6_INTLEV_OFFSET   30
+# define INTC_INTPR6_INTLEV_SIZE     2
+# define INTC_INTPR6_OFFSET_OFFSET   0
+# define INTC_INTPR6_OFFSET_SIZE     24
+#define INTC_INTREQ6                 0x118
+# define INTC_INTREQ6_IREQUEST192_OFFSET 0
+# define INTC_INTREQ6_IREQUEST192_SIZE 1
+#define INTC_INTPR7                  0x1c
+# define INTC_INTPR7_INTLEV_OFFSET   30
+# define INTC_INTPR7_INTLEV_SIZE     2
+# define INTC_INTPR7_OFFSET_OFFSET   0
+# define INTC_INTPR7_OFFSET_SIZE     24
+#define INTC_INTREQ7                 0x11c
+# define INTC_INTREQ7_IREQUEST224_OFFSET 0
+# define INTC_INTREQ7_IREQUEST224_SIZE 1
+#define INTC_INTPR8                  0x20
+# define INTC_INTPR8_INTLEV_OFFSET   30
+# define INTC_INTPR8_INTLEV_SIZE     2
+# define INTC_INTPR8_OFFSET_OFFSET   0
+# define INTC_INTPR8_OFFSET_SIZE     24
+#define INTC_INTREQ8                 0x120
+# define INTC_INTREQ8_IREQUEST256_OFFSET 0
+# define INTC_INTREQ8_IREQUEST256_SIZE 1
+#define INTC_INTPR9                  0x24
+# define INTC_INTPR9_INTLEV_OFFSET   30
+# define INTC_INTPR9_INTLEV_SIZE     2
+# define INTC_INTPR9_OFFSET_OFFSET   0
+# define INTC_INTPR9_OFFSET_SIZE     24
+#define INTC_INTREQ9                 0x124
+# define INTC_INTREQ9_IREQUEST288_OFFSET 0
+# define INTC_INTREQ9_IREQUEST288_SIZE 1
+#define INTC_INTPR10                 0x28
+# define INTC_INTPR10_INTLEV_OFFSET  30
+# define INTC_INTPR10_INTLEV_SIZE    2
+# define INTC_INTPR10_OFFSET_OFFSET  0
+# define INTC_INTPR10_OFFSET_SIZE    24
+#define INTC_INTREQ10                0x128
+# define INTC_INTREQ10_IREQUEST320_OFFSET 0
+# define INTC_INTREQ10_IREQUEST320_SIZE 1
+#define INTC_INTPR11                 0x2c
+# define INTC_INTPR11_INTLEV_OFFSET  30
+# define INTC_INTPR11_INTLEV_SIZE    2
+# define INTC_INTPR11_OFFSET_OFFSET  0
+# define INTC_INTPR11_OFFSET_SIZE    24
+#define INTC_INTREQ11                0x12c
+# define INTC_INTREQ11_IREQUEST352_OFFSET 0
+# define INTC_INTREQ11_IREQUEST352_SIZE 1
+#define INTC_INTPR12                 0x30
+# define INTC_INTPR12_INTLEV_OFFSET  30
+# define INTC_INTPR12_INTLEV_SIZE    2
+# define INTC_INTPR12_OFFSET_OFFSET  0
+# define INTC_INTPR12_OFFSET_SIZE    24
+#define INTC_INTREQ12                0x130
+# define INTC_INTREQ12_IREQUEST384_OFFSET 0
+# define INTC_INTREQ12_IREQUEST384_SIZE 1
+#define INTC_INTPR13                 0x34
+# define INTC_INTPR13_INTLEV_OFFSET  30
+# define INTC_INTPR13_INTLEV_SIZE    2
+# define INTC_INTPR13_OFFSET_OFFSET  0
+# define INTC_INTPR13_OFFSET_SIZE    24
+#define INTC_INTREQ13                0x134
+# define INTC_INTREQ13_IREQUEST416_OFFSET 0
+# define INTC_INTREQ13_IREQUEST416_SIZE 1
+#define INTC_INTPR14                 0x38
+# define INTC_INTPR14_INTLEV_OFFSET  30
+# define INTC_INTPR14_INTLEV_SIZE    2
+# define INTC_INTPR14_OFFSET_OFFSET  0
+# define INTC_INTPR14_OFFSET_SIZE    24
+#define INTC_INTREQ14                0x138
+# define INTC_INTREQ14_IREQUEST448_OFFSET 0
+# define INTC_INTREQ14_IREQUEST448_SIZE 1
+#define INTC_INTPR15                 0x3c
+# define INTC_INTPR15_INTLEV_OFFSET  30
+# define INTC_INTPR15_INTLEV_SIZE    2
+# define INTC_INTPR15_OFFSET_OFFSET  0
+# define INTC_INTPR15_OFFSET_SIZE    24
+#define INTC_INTREQ15                0x13c
+# define INTC_INTREQ15_IREQUEST480_OFFSET 0
+# define INTC_INTREQ15_IREQUEST480_SIZE 1
+#define INTC_INTPR16                 0x40
+# define INTC_INTPR16_INTLEV_OFFSET  30
+# define INTC_INTPR16_INTLEV_SIZE    2
+# define INTC_INTPR16_OFFSET_OFFSET  0
+# define INTC_INTPR16_OFFSET_SIZE    24
+#define INTC_INTREQ16                0x140
+# define INTC_INTREQ16_IREQUEST512_OFFSET 0
+# define INTC_INTREQ16_IREQUEST512_SIZE 1
+#define INTC_INTPR17                 0x44
+# define INTC_INTPR17_INTLEV_OFFSET  30
+# define INTC_INTPR17_INTLEV_SIZE    2
+# define INTC_INTPR17_OFFSET_OFFSET  0
+# define INTC_INTPR17_OFFSET_SIZE    24
+#define INTC_INTREQ17                0x144
+# define INTC_INTREQ17_IREQUEST544_OFFSET 0
+# define INTC_INTREQ17_IREQUEST544_SIZE 1
+#define INTC_INTPR18                 0x48
+# define INTC_INTPR18_INTLEV_OFFSET  30
+# define INTC_INTPR18_INTLEV_SIZE    2
+# define INTC_INTPR18_OFFSET_OFFSET  0
+# define INTC_INTPR18_OFFSET_SIZE    24
+#define INTC_INTREQ18                0x148
+# define INTC_INTREQ18_IREQUEST576_OFFSET 0
+# define INTC_INTREQ18_IREQUEST576_SIZE 1
+#define INTC_INTPR19                 0x4c
+# define INTC_INTPR19_INTLEV_OFFSET  30
+# define INTC_INTPR19_INTLEV_SIZE    2
+# define INTC_INTPR19_OFFSET_OFFSET  0
+# define INTC_INTPR19_OFFSET_SIZE    24
+#define INTC_INTREQ19                0x14c
+# define INTC_INTREQ19_IREQUEST608_OFFSET 0
+# define INTC_INTREQ19_IREQUEST608_SIZE 1
+# define INTC_INTREQ19_IREQUEST609_OFFSET 1
+# define INTC_INTREQ19_IREQUEST609_SIZE 1
+# define INTC_INTREQ19_IREQUEST610_OFFSET 2
+# define INTC_INTREQ19_IREQUEST610_SIZE 1
+# define INTC_INTREQ19_IREQUEST611_OFFSET 3
+# define INTC_INTREQ19_IREQUEST611_SIZE 1
+#define INTC_INTPR20                 0x50
+# define INTC_INTPR20_INTLEV_OFFSET  30
+# define INTC_INTPR20_INTLEV_SIZE    2
+# define INTC_INTPR20_OFFSET_OFFSET  0
+# define INTC_INTPR20_OFFSET_SIZE    24
+#define INTC_INTREQ20                0x150
+# define INTC_INTREQ20_IREQUEST640_OFFSET 0
+# define INTC_INTREQ20_IREQUEST640_SIZE 1
+#define INTC_INTPR21                 0x54
+# define INTC_INTPR21_INTLEV_OFFSET  30
+# define INTC_INTPR21_INTLEV_SIZE    2
+# define INTC_INTPR21_OFFSET_OFFSET  0
+# define INTC_INTPR21_OFFSET_SIZE    24
+#define INTC_INTREQ21                0x154
+# define INTC_INTREQ21_IREQUEST672_OFFSET 0
+# define INTC_INTREQ21_IREQUEST672_SIZE 1
+#define INTC_INTPR22                 0x58
+# define INTC_INTPR22_INTLEV_OFFSET  30
+# define INTC_INTPR22_INTLEV_SIZE    2
+# define INTC_INTPR22_OFFSET_OFFSET  0
+# define INTC_INTPR22_OFFSET_SIZE    24
+#define INTC_INTREQ22                0x158
+# define INTC_INTREQ22_IREQUEST704_OFFSET 0
+# define INTC_INTREQ22_IREQUEST704_SIZE 1
+# define INTC_INTREQ22_IREQUEST705_OFFSET 1
+# define INTC_INTREQ22_IREQUEST705_SIZE 1
+# define INTC_INTREQ22_IREQUEST706_OFFSET 2
+# define INTC_INTREQ22_IREQUEST706_SIZE 1
+#define INTC_INTPR23                 0x5c
+# define INTC_INTPR23_INTLEV_OFFSET  30
+# define INTC_INTPR23_INTLEV_SIZE    2
+# define INTC_INTPR23_OFFSET_OFFSET  0
+# define INTC_INTPR23_OFFSET_SIZE    24
+#define INTC_INTREQ23                0x15c
+# define INTC_INTREQ23_IREQUEST736_OFFSET 0
+# define INTC_INTREQ23_IREQUEST736_SIZE 1
+# define INTC_INTREQ23_IREQUEST737_OFFSET 1
+# define INTC_INTREQ23_IREQUEST737_SIZE 1
+# define INTC_INTREQ23_IREQUEST738_OFFSET 2
+# define INTC_INTREQ23_IREQUEST738_SIZE 1
+#define INTC_INTPR24                 0x60
+# define INTC_INTPR24_INTLEV_OFFSET  30
+# define INTC_INTPR24_INTLEV_SIZE    2
+# define INTC_INTPR24_OFFSET_OFFSET  0
+# define INTC_INTPR24_OFFSET_SIZE    24
+#define INTC_INTREQ24                0x160
+# define INTC_INTREQ24_IREQUEST768_OFFSET 0
+# define INTC_INTREQ24_IREQUEST768_SIZE 1
+#define INTC_INTPR25                 0x64
+# define INTC_INTPR25_INTLEV_OFFSET  30
+# define INTC_INTPR25_INTLEV_SIZE    2
+# define INTC_INTPR25_OFFSET_OFFSET  0
+# define INTC_INTPR25_OFFSET_SIZE    24
+#define INTC_INTREQ25                0x164
+# define INTC_INTREQ25_IREQUEST800_OFFSET 0
+# define INTC_INTREQ25_IREQUEST800_SIZE 1
+#define INTC_INTPR26                 0x68
+# define INTC_INTPR26_INTLEV_OFFSET  30
+# define INTC_INTPR26_INTLEV_SIZE    2
+# define INTC_INTPR26_OFFSET_OFFSET  0
+# define INTC_INTPR26_OFFSET_SIZE    24
+#define INTC_INTREQ26                0x168
+# define INTC_INTREQ26_IREQUEST832_OFFSET 0
+# define INTC_INTREQ26_IREQUEST832_SIZE 1
+#define INTC_INTPR27                 0x6c
+# define INTC_INTPR27_INTLEV_OFFSET  30
+# define INTC_INTPR27_INTLEV_SIZE    2
+# define INTC_INTPR27_OFFSET_OFFSET  0
+# define INTC_INTPR27_OFFSET_SIZE    24
+#define INTC_INTREQ27                0x16c
+# define INTC_INTREQ27_IREQUEST864_OFFSET 0
+# define INTC_INTREQ27_IREQUEST864_SIZE 1
+#define INTC_INTPR28                 0x70
+# define INTC_INTPR28_INTLEV_OFFSET  30
+# define INTC_INTPR28_INTLEV_SIZE    2
+# define INTC_INTPR28_OFFSET_OFFSET  0
+# define INTC_INTPR28_OFFSET_SIZE    24
+#define INTC_INTREQ28                0x170
+# define INTC_INTREQ28_IREQUEST896_OFFSET 0
+# define INTC_INTREQ28_IREQUEST896_SIZE 1
+#define INTC_INTPR29                 0x74
+# define INTC_INTPR29_INTLEV_OFFSET  30
+# define INTC_INTPR29_INTLEV_SIZE    2
+# define INTC_INTPR29_OFFSET_OFFSET  0
+# define INTC_INTPR29_OFFSET_SIZE    24
+#define INTC_INTREQ29                0x174
+# define INTC_INTREQ29_IREQUEST928_OFFSET 0
+# define INTC_INTREQ29_IREQUEST928_SIZE 1
+#define INTC_INTPR30                 0x78
+# define INTC_INTPR30_INTLEV_OFFSET  30
+# define INTC_INTPR30_INTLEV_SIZE    2
+# define INTC_INTPR30_OFFSET_OFFSET  0
+# define INTC_INTPR30_OFFSET_SIZE    24
+#define INTC_INTREQ30                0x178
+# define INTC_INTREQ30_IREQUEST960_OFFSET 0
+# define INTC_INTREQ30_IREQUEST960_SIZE 1
+#define INTC_INTPR31                 0x7c
+# define INTC_INTPR31_INTLEV_OFFSET  30
+# define INTC_INTPR31_INTLEV_SIZE    2
+# define INTC_INTPR31_OFFSET_OFFSET  0
+# define INTC_INTPR31_OFFSET_SIZE    24
+#define INTC_INTREQ31                0x17c
+# define INTC_INTREQ31_IREQUEST992_OFFSET 0
+# define INTC_INTREQ31_IREQUEST992_SIZE 1
+#define INTC_INTPR32                 0x80
+# define INTC_INTPR32_INTLEV_OFFSET  30
+# define INTC_INTPR32_INTLEV_SIZE    2
+# define INTC_INTPR32_OFFSET_OFFSET  0
+# define INTC_INTPR32_OFFSET_SIZE    24
+#define INTC_INTREQ32                0x180
+# define INTC_INTREQ32_IREQUEST1024_OFFSET 0
+# define INTC_INTREQ32_IREQUEST1024_SIZE 1
+#define INTC_INTCAUSE0               0x20c
+# define INTC_INTCAUSE0_CAUSEGRP_OFFSET 0
+# define INTC_INTCAUSE0_CAUSEGRP_SIZE 6
+#define INTC_INTCAUSE1               0x208
+# define INTC_INTCAUSE1_CAUSEGRP_OFFSET 0
+# define INTC_INTCAUSE1_CAUSEGRP_SIZE 6
+#define INTC_INTCAUSE2               0x204
+# define INTC_INTCAUSE2_CAUSEGRP_OFFSET 0
+# define INTC_INTCAUSE2_CAUSEGRP_SIZE 6
+#define INTC_INTCAUSE3               0x200
+# define INTC_INTCAUSE3_CAUSEGRP_OFFSET 0
+# define INTC_INTCAUSE3_CAUSEGRP_SIZE 6
+
+#define INTC_BIT(name)               (1 << INTC_##name##_OFFSET)
+#define INTC_MKBF(name, value)       (((value) & ((1 << INTC_##name##_SIZE) - 1)) << INTC_##name##_OFFSET)
+#define INTC_GETBF(name, value)      (((value) >> INTC_##name##_OFFSET) & ((1 << INTC_##name##_SIZE) - 1))
+
+#define intc_readl(port,reg)         readl((port)->regs + INTC_##reg)
+#define intc_writel(port,reg,value)  writel((value), (port)->regs + INTC_##reg)
+
+#endif /* __ASM_AVR32_PERIHP_INTC_H__ */
diff --git a/arch/avr32/mach-at32ap/pio.c b/arch/avr32/mach-at32ap/pio.c
new file mode 100644 (file)
index 0000000..d3aabfc
--- /dev/null
@@ -0,0 +1,118 @@
+/*
+ * Atmel PIO2 Port Multiplexer support
+ *
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/clk.h>
+#include <linux/debugfs.h>
+#include <linux/fs.h>
+#include <linux/platform_device.h>
+
+#include <asm/io.h>
+
+#include <asm/arch/portmux.h>
+
+#include "pio.h"
+
+#define MAX_NR_PIO_DEVICES             8
+
+struct pio_device {
+       void __iomem *regs;
+       const struct platform_device *pdev;
+       struct clk *clk;
+       u32 alloc_mask;
+       char name[32];
+};
+
+static struct pio_device pio_dev[MAX_NR_PIO_DEVICES];
+
+void portmux_set_func(unsigned int portmux_id, unsigned int pin_id,
+                     unsigned int function_id)
+{
+       struct pio_device *pio;
+       u32 mask = 1 << pin_id;
+
+       BUG_ON(portmux_id >= MAX_NR_PIO_DEVICES);
+
+       pio = &pio_dev[portmux_id];
+
+       if (function_id)
+               pio_writel(pio, BSR, mask);
+       else
+               pio_writel(pio, ASR, mask);
+       pio_writel(pio, PDR, mask);
+}
+
+static int __init pio_probe(struct platform_device *pdev)
+{
+       struct pio_device *pio = NULL;
+
+       BUG_ON(pdev->id >= MAX_NR_PIO_DEVICES);
+       pio = &pio_dev[pdev->id];
+       BUG_ON(!pio->regs);
+
+       /* TODO: Interrupts */
+
+       platform_set_drvdata(pdev, pio);
+
+       printk(KERN_INFO "%s: Atmel Port Multiplexer at 0x%p (irq %d)\n",
+              pio->name, pio->regs, platform_get_irq(pdev, 0));
+
+       return 0;
+}
+
+static struct platform_driver pio_driver = {
+       .probe          = pio_probe,
+       .driver         = {
+               .name           = "pio",
+       },
+};
+
+static int __init pio_init(void)
+{
+       return platform_driver_register(&pio_driver);
+}
+subsys_initcall(pio_init);
+
+void __init at32_init_pio(struct platform_device *pdev)
+{
+       struct resource *regs;
+       struct pio_device *pio;
+
+       if (pdev->id > MAX_NR_PIO_DEVICES) {
+               dev_err(&pdev->dev, "only %d PIO devices supported\n",
+                       MAX_NR_PIO_DEVICES);
+               return;
+       }
+
+       pio = &pio_dev[pdev->id];
+       snprintf(pio->name, sizeof(pio->name), "pio%d", pdev->id);
+
+       regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+       if (!regs) {
+               dev_err(&pdev->dev, "no mmio resource defined\n");
+               return;
+       }
+
+       pio->clk = clk_get(&pdev->dev, "mck");
+       if (IS_ERR(pio->clk))
+               /*
+                * This is a fatal error, but if we continue we might
+                * be so lucky that we manage to initialize the
+                * console and display this message...
+                */
+               dev_err(&pdev->dev, "no mck clock defined\n");
+       else
+               clk_enable(pio->clk);
+
+       pio->pdev = pdev;
+       pio->regs = ioremap(regs->start, regs->end - regs->start + 1);
+
+       pio_writel(pio, ODR, ~0UL);
+       pio_writel(pio, PER, ~0UL);
+}
diff --git a/arch/avr32/mach-at32ap/pio.h b/arch/avr32/mach-at32ap/pio.h
new file mode 100644 (file)
index 0000000..cfea123
--- /dev/null
@@ -0,0 +1,178 @@
+/*
+ * Atmel PIO2 Port Multiplexer support
+ *
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef __ARCH_AVR32_AT32AP_PIO_H__
+#define __ARCH_AVR32_AT32AP_PIO_H__
+
+/* PIO register offsets */
+#define PIO_PER                                0x0000
+#define PIO_PDR                                0x0004
+#define PIO_PSR                                0x0008
+#define PIO_OER                                0x0010
+#define PIO_ODR                                0x0014
+#define PIO_OSR                                0x0018
+#define PIO_IFER                               0x0020
+#define PIO_IFDR                               0x0024
+#define PIO_ISFR                               0x0028
+#define PIO_SODR                               0x0030
+#define PIO_CODR                               0x0034
+#define PIO_ODSR                               0x0038
+#define PIO_PDSR                               0x003c
+#define PIO_IER                                0x0040
+#define PIO_IDR                                0x0044
+#define PIO_IMR                                0x0048
+#define PIO_ISR                                0x004c
+#define PIO_MDER                               0x0050
+#define PIO_MDDR                               0x0054
+#define PIO_MDSR                               0x0058
+#define PIO_PUDR                               0x0060
+#define PIO_PUER                               0x0064
+#define PIO_PUSR                               0x0068
+#define PIO_ASR                                0x0070
+#define PIO_BSR                                0x0074
+#define PIO_ABSR                               0x0078
+#define PIO_OWER                               0x00a0
+#define PIO_OWDR                               0x00a4
+#define PIO_OWSR                               0x00a8
+
+/* Bitfields in PER */
+
+/* Bitfields in PDR */
+
+/* Bitfields in PSR */
+
+/* Bitfields in OER */
+
+/* Bitfields in ODR */
+
+/* Bitfields in OSR */
+
+/* Bitfields in IFER */
+
+/* Bitfields in IFDR */
+
+/* Bitfields in ISFR */
+
+/* Bitfields in SODR */
+
+/* Bitfields in CODR */
+
+/* Bitfields in ODSR */
+
+/* Bitfields in PDSR */
+
+/* Bitfields in IER */
+
+/* Bitfields in IDR */
+
+/* Bitfields in IMR */
+
+/* Bitfields in ISR */
+
+/* Bitfields in MDER */
+
+/* Bitfields in MDDR */
+
+/* Bitfields in MDSR */
+
+/* Bitfields in PUDR */
+
+/* Bitfields in PUER */
+
+/* Bitfields in PUSR */
+
+/* Bitfields in ASR */
+
+/* Bitfields in BSR */
+
+/* Bitfields in ABSR */
+#define PIO_P0_OFFSET                          0
+#define PIO_P0_SIZE                            1
+#define PIO_P1_OFFSET                          1
+#define PIO_P1_SIZE                            1
+#define PIO_P2_OFFSET                          2
+#define PIO_P2_SIZE                            1
+#define PIO_P3_OFFSET                          3
+#define PIO_P3_SIZE                            1
+#define PIO_P4_OFFSET                          4
+#define PIO_P4_SIZE                            1
+#define PIO_P5_OFFSET                          5
+#define PIO_P5_SIZE                            1
+#define PIO_P6_OFFSET                          6
+#define PIO_P6_SIZE                            1
+#define PIO_P7_OFFSET                          7
+#define PIO_P7_SIZE                            1
+#define PIO_P8_OFFSET                          8
+#define PIO_P8_SIZE                            1
+#define PIO_P9_OFFSET                          9
+#define PIO_P9_SIZE                            1
+#define PIO_P10_OFFSET                         10
+#define PIO_P10_SIZE                           1
+#define PIO_P11_OFFSET                         11
+#define PIO_P11_SIZE                           1
+#define PIO_P12_OFFSET                         12
+#define PIO_P12_SIZE                           1
+#define PIO_P13_OFFSET                         13
+#define PIO_P13_SIZE                           1
+#define PIO_P14_OFFSET                         14
+#define PIO_P14_SIZE                           1
+#define PIO_P15_OFFSET                         15
+#define PIO_P15_SIZE                           1
+#define PIO_P16_OFFSET                         16
+#define PIO_P16_SIZE                           1
+#define PIO_P17_OFFSET                         17
+#define PIO_P17_SIZE                           1
+#define PIO_P18_OFFSET                         18
+#define PIO_P18_SIZE                           1
+#define PIO_P19_OFFSET                         19
+#define PIO_P19_SIZE                           1
+#define PIO_P20_OFFSET                         20
+#define PIO_P20_SIZE                           1
+#define PIO_P21_OFFSET                         21
+#define PIO_P21_SIZE                           1
+#define PIO_P22_OFFSET                         22
+#define PIO_P22_SIZE                           1
+#define PIO_P23_OFFSET                         23
+#define PIO_P23_SIZE                           1
+#define PIO_P24_OFFSET                         24
+#define PIO_P24_SIZE                           1
+#define PIO_P25_OFFSET                         25
+#define PIO_P25_SIZE                           1
+#define PIO_P26_OFFSET                         26
+#define PIO_P26_SIZE                           1
+#define PIO_P27_OFFSET                         27
+#define PIO_P27_SIZE                           1
+#define PIO_P28_OFFSET                         28
+#define PIO_P28_SIZE                           1
+#define PIO_P29_OFFSET                         29
+#define PIO_P29_SIZE                           1
+#define PIO_P30_OFFSET                         30
+#define PIO_P30_SIZE                           1
+#define PIO_P31_OFFSET                         31
+#define PIO_P31_SIZE                           1
+
+/* Bitfields in OWER */
+
+/* Bitfields in OWDR */
+
+/* Bitfields in OWSR */
+
+/* Bit manipulation macros */
+#define PIO_BIT(name)                          (1 << PIO_##name##_OFFSET)
+#define PIO_BF(name,value)                     (((value) & ((1 << PIO_##name##_SIZE) - 1)) << PIO_##name##_OFFSET)
+#define PIO_BFEXT(name,value)                  (((value) >> PIO_##name##_OFFSET) & ((1 << PIO_##name##_SIZE) - 1))
+#define PIO_BFINS(name,value,old)              (((old) & ~(((1 << PIO_##name##_SIZE) - 1) << PIO_##name##_OFFSET)) | PIO_BF(name,value))
+
+/* Register access macros */
+#define pio_readl(port,reg)                    readl((port)->regs + PIO_##reg)
+#define pio_writel(port,reg,value)             writel((value), (port)->regs + PIO_##reg)
+
+void at32_init_pio(struct platform_device *pdev);
+
+#endif /* __ARCH_AVR32_AT32AP_PIO_H__ */
diff --git a/arch/avr32/mach-at32ap/sm.c b/arch/avr32/mach-at32ap/sm.c
new file mode 100644 (file)
index 0000000..03306eb
--- /dev/null
@@ -0,0 +1,289 @@
+/*
+ * System Manager driver for AT32AP CPUs
+ *
+ * Copyright (C) 2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <linux/random.h>
+#include <linux/spinlock.h>
+
+#include <asm/intc.h>
+#include <asm/io.h>
+#include <asm/irq.h>
+
+#include <asm/arch/sm.h>
+
+#include "sm.h"
+
+#define SM_EIM_IRQ_RESOURCE    1
+#define SM_PM_IRQ_RESOURCE     2
+#define SM_RTC_IRQ_RESOURCE    3
+
+#define to_eim(irqc) container_of(irqc, struct at32_sm, irqc)
+
+struct at32_sm system_manager;
+
+int __init at32_sm_init(void)
+{
+       struct resource *regs;
+       struct at32_sm *sm = &system_manager;
+       int ret = -ENXIO;
+
+       regs = platform_get_resource(&at32_sm_device, IORESOURCE_MEM, 0);
+       if (!regs)
+               goto fail;
+
+       spin_lock_init(&sm->lock);
+       sm->pdev = &at32_sm_device;
+
+       ret = -ENOMEM;
+       sm->regs = ioremap(regs->start, regs->end - regs->start + 1);
+       if (!sm->regs)
+               goto fail;
+
+       return 0;
+
+fail:
+       printk(KERN_ERR "Failed to initialize System Manager: %d\n", ret);
+       return ret;
+}
+
+/*
+ * External Interrupt Module (EIM).
+ *
+ * EIM gets level- or edge-triggered interrupts of either polarity
+ * from the outside and converts it to active-high level-triggered
+ * interrupts that the internal interrupt controller can handle. EIM
+ * also provides masking/unmasking of interrupts, as well as
+ * acknowledging of edge-triggered interrupts.
+ */
+
+static irqreturn_t spurious_eim_interrupt(int irq, void *dev_id,
+                                         struct pt_regs *regs)
+{
+       printk(KERN_WARNING "Spurious EIM interrupt %d\n", irq);
+       disable_irq(irq);
+       return IRQ_NONE;
+}
+
+static struct irqaction eim_spurious_action = {
+       .handler = spurious_eim_interrupt,
+};
+
+static irqreturn_t eim_handle_irq(int irq, void *dev_id, struct pt_regs *regs)
+{
+       struct irq_controller * irqc = dev_id;
+       struct at32_sm *sm = to_eim(irqc);
+       unsigned long pending;
+
+       /*
+        * No need to disable interrupts globally.  The interrupt
+        * level relevant to this group must be masked all the time,
+        * so we know that this particular EIM instance will not be
+        * re-entered.
+        */
+       spin_lock(&sm->lock);
+
+       pending = intc_get_pending(sm->irqc.irq_group);
+       if (unlikely(!pending)) {
+               printk(KERN_ERR "EIM (group %u): No interrupts pending!\n",
+                      sm->irqc.irq_group);
+               goto unlock;
+       }
+
+       do {
+               struct irqaction *action;
+               unsigned int i;
+
+               i = fls(pending) - 1;
+               pending &= ~(1 << i);
+               action = sm->action[i];
+
+               /* Acknowledge the interrupt */
+               sm_writel(sm, EIM_ICR, 1 << i);
+
+               spin_unlock(&sm->lock);
+
+               if (action->flags & SA_INTERRUPT)
+                       local_irq_disable();
+               action->handler(sm->irqc.first_irq + i, action->dev_id, regs);
+               local_irq_enable();
+               spin_lock(&sm->lock);
+               if (action->flags & SA_SAMPLE_RANDOM)
+                       add_interrupt_randomness(sm->irqc.first_irq + i);
+       } while (pending);
+
+unlock:
+       spin_unlock(&sm->lock);
+       return IRQ_HANDLED;
+}
+
+static void eim_mask(struct irq_controller *irqc, unsigned int irq)
+{
+       struct at32_sm *sm = to_eim(irqc);
+       unsigned int i;
+
+       i = irq - sm->irqc.first_irq;
+       sm_writel(sm, EIM_IDR, 1 << i);
+}
+
+static void eim_unmask(struct irq_controller *irqc, unsigned int irq)
+{
+       struct at32_sm *sm = to_eim(irqc);
+       unsigned int i;
+
+       i = irq - sm->irqc.first_irq;
+       sm_writel(sm, EIM_IER, 1 << i);
+}
+
+static int eim_setup(struct irq_controller *irqc, unsigned int irq,
+               struct irqaction *action)
+{
+       struct at32_sm *sm = to_eim(irqc);
+       sm->action[irq - sm->irqc.first_irq] = action;
+       /* Acknowledge earlier interrupts */
+       sm_writel(sm, EIM_ICR, (1<<(irq - sm->irqc.first_irq)));
+       eim_unmask(irqc, irq);
+       return 0;
+}
+
+static void eim_free(struct irq_controller *irqc, unsigned int irq,
+               void *dev)
+{
+       struct at32_sm *sm = to_eim(irqc);
+       eim_mask(irqc, irq);
+       sm->action[irq - sm->irqc.first_irq] = &eim_spurious_action;
+}
+
+static int eim_set_type(struct irq_controller *irqc, unsigned int irq,
+                       unsigned int type)
+{
+       struct at32_sm *sm = to_eim(irqc);
+       unsigned long flags;
+       u32 value, pattern;
+
+       spin_lock_irqsave(&sm->lock, flags);
+
+       pattern = 1 << (irq - sm->irqc.first_irq);
+
+       value = sm_readl(sm, EIM_MODE);
+       if (type & IRQ_TYPE_LEVEL)
+               value |= pattern;
+       else
+               value &= ~pattern;
+       sm_writel(sm, EIM_MODE, value);
+       value = sm_readl(sm, EIM_EDGE);
+       if (type & IRQ_EDGE_RISING)
+               value |= pattern;
+       else
+               value &= ~pattern;
+       sm_writel(sm, EIM_EDGE, value);
+       value = sm_readl(sm, EIM_LEVEL);
+       if (type & IRQ_LEVEL_HIGH)
+               value |= pattern;
+       else
+               value &= ~pattern;
+       sm_writel(sm, EIM_LEVEL, value);
+
+       spin_unlock_irqrestore(&sm->lock, flags);
+
+       return 0;
+}
+
+static unsigned int eim_get_type(struct irq_controller *irqc,
+                                unsigned int irq)
+{
+       struct at32_sm *sm = to_eim(irqc);
+       unsigned long flags;
+       unsigned int type = 0;
+       u32 mode, edge, level, pattern;
+
+       pattern = 1 << (irq - sm->irqc.first_irq);
+
+       spin_lock_irqsave(&sm->lock, flags);
+       mode = sm_readl(sm, EIM_MODE);
+       edge = sm_readl(sm, EIM_EDGE);
+       level = sm_readl(sm, EIM_LEVEL);
+       spin_unlock_irqrestore(&sm->lock, flags);
+
+       if (mode & pattern)
+               type |= IRQ_TYPE_LEVEL;
+       if (edge & pattern)
+               type |= IRQ_EDGE_RISING;
+       if (level & pattern)
+               type |= IRQ_LEVEL_HIGH;
+
+       return type;
+}
+
+static struct irq_controller_class eim_irq_class = {
+       .typename       = "EIM",
+       .handle         = eim_handle_irq,
+       .setup          = eim_setup,
+       .free           = eim_free,
+       .mask           = eim_mask,
+       .unmask         = eim_unmask,
+       .set_type       = eim_set_type,
+       .get_type       = eim_get_type,
+};
+
+static int __init eim_init(void)
+{
+       struct at32_sm *sm = &system_manager;
+       unsigned int i;
+       u32 pattern;
+       int ret;
+
+       /*
+        * The EIM is really the same module as SM, so register
+        * mapping, etc. has been taken care of already.
+        */
+
+       /*
+        * Find out how many interrupt lines that are actually
+        * implemented in hardware.
+        */
+       sm_writel(sm, EIM_IDR, ~0UL);
+       sm_writel(sm, EIM_MODE, ~0UL);
+       pattern = sm_readl(sm, EIM_MODE);
+       sm->irqc.nr_irqs = fls(pattern);
+
+       ret = -ENOMEM;
+       sm->action = kmalloc(sizeof(*sm->action) * sm->irqc.nr_irqs,
+                            GFP_KERNEL);
+       if (!sm->action)
+               goto out;
+
+       for (i = 0; i < sm->irqc.nr_irqs; i++)
+               sm->action[i] = &eim_spurious_action;
+
+       spin_lock_init(&sm->lock);
+       sm->irqc.irq_group = sm->pdev->resource[SM_EIM_IRQ_RESOURCE].start;
+       sm->irqc.class = &eim_irq_class;
+
+       ret = intc_register_controller(&sm->irqc);
+       if (ret < 0)
+               goto out_free_actions;
+
+       printk("EIM: External Interrupt Module at 0x%p, IRQ group %u\n",
+              sm->regs, sm->irqc.irq_group);
+       printk("EIM: Handling %u external IRQs, starting with IRQ%u\n",
+              sm->irqc.nr_irqs, sm->irqc.first_irq);
+
+       return 0;
+
+out_free_actions:
+       kfree(sm->action);
+out:
+       return ret;
+}
+arch_initcall(eim_init);
diff --git a/arch/avr32/mach-at32ap/sm.h b/arch/avr32/mach-at32ap/sm.h
new file mode 100644 (file)
index 0000000..2756582
--- /dev/null
@@ -0,0 +1,240 @@
+/*
+ * Register definitions for SM
+ *
+ * System Manager
+ */
+#ifndef __ASM_AVR32_SM_H__
+#define __ASM_AVR32_SM_H__
+
+/* SM register offsets */
+#define SM_PM_MCCTRL                            0x0000
+#define SM_PM_CKSEL                             0x0004
+#define SM_PM_CPU_MASK                          0x0008
+#define SM_PM_HSB_MASK                          0x000c
+#define SM_PM_PBA_MASK                         0x0010
+#define SM_PM_PBB_MASK                         0x0014
+#define SM_PM_PLL0                              0x0020
+#define SM_PM_PLL1                              0x0024
+#define SM_PM_VCTRL                             0x0030
+#define SM_PM_VMREF                             0x0034
+#define SM_PM_VMV                               0x0038
+#define SM_PM_IER                               0x0040
+#define SM_PM_IDR                               0x0044
+#define SM_PM_IMR                               0x0048
+#define SM_PM_ISR                               0x004c
+#define SM_PM_ICR                               0x0050
+#define SM_PM_GCCTRL                            0x0060
+#define SM_RTC_CTRL                             0x0080
+#define SM_RTC_VAL                              0x0084
+#define SM_RTC_TOP                              0x0088
+#define SM_RTC_IER                              0x0090
+#define SM_RTC_IDR                              0x0094
+#define SM_RTC_IMR                              0x0098
+#define SM_RTC_ISR                              0x009c
+#define SM_RTC_ICR                              0x00a0
+#define SM_WDT_CTRL                             0x00b0
+#define SM_WDT_CLR                              0x00b4
+#define SM_WDT_EXT                              0x00b8
+#define SM_RC_RCAUSE                            0x00c0
+#define SM_EIM_IER                              0x0100
+#define SM_EIM_IDR                              0x0104
+#define SM_EIM_IMR                              0x0108
+#define SM_EIM_ISR                              0x010c
+#define SM_EIM_ICR                              0x0110
+#define SM_EIM_MODE                             0x0114
+#define SM_EIM_EDGE                             0x0118
+#define SM_EIM_LEVEL                            0x011c
+#define SM_EIM_TEST                             0x0120
+#define SM_EIM_NMIC                             0x0124
+
+/* Bitfields in PM_MCCTRL */
+
+/* Bitfields in PM_CKSEL */
+#define SM_CPUSEL_OFFSET                        0
+#define SM_CPUSEL_SIZE                          3
+#define SM_CPUDIV_OFFSET                        7
+#define SM_CPUDIV_SIZE                          1
+#define SM_HSBSEL_OFFSET                        8
+#define SM_HSBSEL_SIZE                          3
+#define SM_HSBDIV_OFFSET                        15
+#define SM_HSBDIV_SIZE                          1
+#define SM_PBASEL_OFFSET                       16
+#define SM_PBASEL_SIZE                         3
+#define SM_PBADIV_OFFSET                       23
+#define SM_PBADIV_SIZE                         1
+#define SM_PBBSEL_OFFSET                       24
+#define SM_PBBSEL_SIZE                         3
+#define SM_PBBDIV_OFFSET                       31
+#define SM_PBBDIV_SIZE                         1
+
+/* Bitfields in PM_CPU_MASK */
+
+/* Bitfields in PM_HSB_MASK */
+
+/* Bitfields in PM_PBA_MASK */
+
+/* Bitfields in PM_PBB_MASK */
+
+/* Bitfields in PM_PLL0 */
+#define SM_PLLEN_OFFSET                         0
+#define SM_PLLEN_SIZE                           1
+#define SM_PLLOSC_OFFSET                        1
+#define SM_PLLOSC_SIZE                          1
+#define SM_PLLOPT_OFFSET                        2
+#define SM_PLLOPT_SIZE                          3
+#define SM_PLLDIV_OFFSET                        8
+#define SM_PLLDIV_SIZE                          8
+#define SM_PLLMUL_OFFSET                        16
+#define SM_PLLMUL_SIZE                          8
+#define SM_PLLCOUNT_OFFSET                      24
+#define SM_PLLCOUNT_SIZE                        6
+#define SM_PLLTEST_OFFSET                       31
+#define SM_PLLTEST_SIZE                         1
+
+/* Bitfields in PM_PLL1 */
+
+/* Bitfields in PM_VCTRL */
+#define SM_VAUTO_OFFSET                         0
+#define SM_VAUTO_SIZE                           1
+#define SM_PM_VCTRL_VAL_OFFSET                  8
+#define SM_PM_VCTRL_VAL_SIZE                    7
+
+/* Bitfields in PM_VMREF */
+#define SM_REFSEL_OFFSET                        0
+#define SM_REFSEL_SIZE                          4
+
+/* Bitfields in PM_VMV */
+#define SM_PM_VMV_VAL_OFFSET                    0
+#define SM_PM_VMV_VAL_SIZE                      8
+
+/* Bitfields in PM_IER */
+
+/* Bitfields in PM_IDR */
+
+/* Bitfields in PM_IMR */
+
+/* Bitfields in PM_ISR */
+
+/* Bitfields in PM_ICR */
+#define SM_LOCK0_OFFSET                         0
+#define SM_LOCK0_SIZE                           1
+#define SM_LOCK1_OFFSET                         1
+#define SM_LOCK1_SIZE                           1
+#define SM_WAKE_OFFSET                          2
+#define SM_WAKE_SIZE                            1
+#define SM_VOK_OFFSET                           3
+#define SM_VOK_SIZE                             1
+#define SM_VMRDY_OFFSET                         4
+#define SM_VMRDY_SIZE                           1
+#define SM_CKRDY_OFFSET                         5
+#define SM_CKRDY_SIZE                           1
+
+/* Bitfields in PM_GCCTRL */
+#define SM_OSCSEL_OFFSET                        0
+#define SM_OSCSEL_SIZE                          1
+#define SM_PLLSEL_OFFSET                        1
+#define SM_PLLSEL_SIZE                          1
+#define SM_CEN_OFFSET                           2
+#define SM_CEN_SIZE                             1
+#define SM_CPC_OFFSET                           3
+#define SM_CPC_SIZE                             1
+#define SM_DIVEN_OFFSET                         4
+#define SM_DIVEN_SIZE                           1
+#define SM_DIV_OFFSET                           8
+#define SM_DIV_SIZE                             8
+
+/* Bitfields in RTC_CTRL */
+#define SM_PCLR_OFFSET                          1
+#define SM_PCLR_SIZE                            1
+#define SM_TOPEN_OFFSET                         2
+#define SM_TOPEN_SIZE                           1
+#define SM_CLKEN_OFFSET                         3
+#define SM_CLKEN_SIZE                           1
+#define SM_PSEL_OFFSET                          8
+#define SM_PSEL_SIZE                            16
+
+/* Bitfields in RTC_VAL */
+#define SM_RTC_VAL_VAL_OFFSET                   0
+#define SM_RTC_VAL_VAL_SIZE                     31
+
+/* Bitfields in RTC_TOP */
+#define SM_RTC_TOP_VAL_OFFSET                   0
+#define SM_RTC_TOP_VAL_SIZE                     32
+
+/* Bitfields in RTC_IER */
+
+/* Bitfields in RTC_IDR */
+
+/* Bitfields in RTC_IMR */
+
+/* Bitfields in RTC_ISR */
+
+/* Bitfields in RTC_ICR */
+#define SM_TOPI_OFFSET                          0
+#define SM_TOPI_SIZE                            1
+
+/* Bitfields in WDT_CTRL */
+#define SM_KEY_OFFSET                           24
+#define SM_KEY_SIZE                             8
+
+/* Bitfields in WDT_CLR */
+
+/* Bitfields in WDT_EXT */
+
+/* Bitfields in RC_RCAUSE */
+#define SM_POR_OFFSET                           0
+#define SM_POR_SIZE                             1
+#define SM_BOD_OFFSET                           1
+#define SM_BOD_SIZE                             1
+#define SM_EXT_OFFSET                           2
+#define SM_EXT_SIZE                             1
+#define SM_WDT_OFFSET                           3
+#define SM_WDT_SIZE                             1
+#define SM_NTAE_OFFSET                          4
+#define SM_NTAE_SIZE                            1
+#define SM_SERP_OFFSET                          5
+#define SM_SERP_SIZE                            1
+
+/* Bitfields in EIM_IER */
+
+/* Bitfields in EIM_IDR */
+
+/* Bitfields in EIM_IMR */
+
+/* Bitfields in EIM_ISR */
+
+/* Bitfields in EIM_ICR */
+
+/* Bitfields in EIM_MODE */
+
+/* Bitfields in EIM_EDGE */
+#define SM_INT0_OFFSET                          0
+#define SM_INT0_SIZE                            1
+#define SM_INT1_OFFSET                          1
+#define SM_INT1_SIZE                            1
+#define SM_INT2_OFFSET                          2
+#define SM_INT2_SIZE                            1
+#define SM_INT3_OFFSET                          3
+#define SM_INT3_SIZE                            1
+
+/* Bitfields in EIM_LEVEL */
+
+/* Bitfields in EIM_TEST */
+#define SM_TESTEN_OFFSET                        31
+#define SM_TESTEN_SIZE                          1
+
+/* Bitfields in EIM_NMIC */
+#define SM_EN_OFFSET                            0
+#define SM_EN_SIZE                              1
+
+/* Bit manipulation macros */
+#define SM_BIT(name)                            (1 << SM_##name##_OFFSET)
+#define SM_BF(name,value)                       (((value) & ((1 << SM_##name##_SIZE) - 1)) << SM_##name##_OFFSET)
+#define SM_BFEXT(name,value)                    (((value) >> SM_##name##_OFFSET) & ((1 << SM_##name##_SIZE) - 1))
+#define SM_BFINS(name,value,old)                (((old) & ~(((1 << SM_##name##_SIZE) - 1) << SM_##name##_OFFSET)) | SM_BF(name,value))
+
+/* Register access macros */
+#define sm_readl(port,reg)                      readl((port)->regs + SM_##reg)
+#define sm_writel(port,reg,value)               writel((value), (port)->regs + SM_##reg)
+
+#endif /* __ASM_AVR32_SM_H__ */
diff --git a/arch/avr32/mm/Makefile b/arch/avr32/mm/Makefile
new file mode 100644 (file)
index 0000000..0066491
--- /dev/null
@@ -0,0 +1,6 @@
+#
+# Makefile for the Linux/AVR32 kernel.
+#
+
+obj-y                          += init.o clear_page.o copy_page.o dma-coherent.o
+obj-y                          += ioremap.o cache.o fault.o tlb.o
diff --git a/arch/avr32/mm/cache.c b/arch/avr32/mm/cache.c
new file mode 100644 (file)
index 0000000..450515b
--- /dev/null
@@ -0,0 +1,150 @@
+/*
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/highmem.h>
+#include <linux/unistd.h>
+
+#include <asm/cacheflush.h>
+#include <asm/cachectl.h>
+#include <asm/processor.h>
+#include <asm/uaccess.h>
+
+/*
+ * If you attempt to flush anything more than this, you need superuser
+ * privileges.  The value is completely arbitrary.
+ */
+#define CACHEFLUSH_MAX_LEN     1024
+
+void invalidate_dcache_region(void *start, size_t size)
+{
+       unsigned long v, begin, end, linesz;
+
+       linesz = boot_cpu_data.dcache.linesz;
+
+       //printk("invalidate dcache: %p + %u\n", start, size);
+
+       /* You asked for it, you got it */
+       begin = (unsigned long)start & ~(linesz - 1);
+       end = ((unsigned long)start + size + linesz - 1) & ~(linesz - 1);
+
+       for (v = begin; v < end; v += linesz)
+               invalidate_dcache_line((void *)v);
+}
+
+void clean_dcache_region(void *start, size_t size)
+{
+       unsigned long v, begin, end, linesz;
+
+       linesz = boot_cpu_data.dcache.linesz;
+       begin = (unsigned long)start & ~(linesz - 1);
+       end = ((unsigned long)start + size + linesz - 1) & ~(linesz - 1);
+
+       for (v = begin; v < end; v += linesz)
+               clean_dcache_line((void *)v);
+       flush_write_buffer();
+}
+
+void flush_dcache_region(void *start, size_t size)
+{
+       unsigned long v, begin, end, linesz;
+
+       linesz = boot_cpu_data.dcache.linesz;
+       begin = (unsigned long)start & ~(linesz - 1);
+       end = ((unsigned long)start + size + linesz - 1) & ~(linesz - 1);
+
+       for (v = begin; v < end; v += linesz)
+               flush_dcache_line((void *)v);
+       flush_write_buffer();
+}
+
+void invalidate_icache_region(void *start, size_t size)
+{
+       unsigned long v, begin, end, linesz;
+
+       linesz = boot_cpu_data.icache.linesz;
+       begin = (unsigned long)start & ~(linesz - 1);
+       end = ((unsigned long)start + size + linesz - 1) & ~(linesz - 1);
+
+       for (v = begin; v < end; v += linesz)
+               invalidate_icache_line((void *)v);
+}
+
+static inline void __flush_icache_range(unsigned long start, unsigned long end)
+{
+       unsigned long v, linesz;
+
+       linesz = boot_cpu_data.dcache.linesz;
+       for (v = start; v < end; v += linesz) {
+               clean_dcache_line((void *)v);
+               invalidate_icache_line((void *)v);
+       }
+
+       flush_write_buffer();
+}
+
+/*
+ * This one is called after a module has been loaded.
+ */
+void flush_icache_range(unsigned long start, unsigned long end)
+{
+       unsigned long linesz;
+
+       linesz = boot_cpu_data.dcache.linesz;
+       __flush_icache_range(start & ~(linesz - 1),
+                            (end + linesz - 1) & ~(linesz - 1));
+}
+
+/*
+ * This one is called from do_no_page(), do_swap_page() and install_page().
+ */
+void flush_icache_page(struct vm_area_struct *vma, struct page *page)
+{
+       if (vma->vm_flags & VM_EXEC) {
+               void *v = kmap(page);
+               __flush_icache_range((unsigned long)v, (unsigned long)v + PAGE_SIZE);
+               kunmap(v);
+       }
+}
+
+/*
+ * This one is used by copy_to_user_page()
+ */
+void flush_icache_user_range(struct vm_area_struct *vma, struct page *page,
+                            unsigned long addr, int len)
+{
+       if (vma->vm_flags & VM_EXEC)
+               flush_icache_range(addr, addr + len);
+}
+
+asmlinkage int sys_cacheflush(int operation, void __user *addr, size_t len)
+{
+       int ret;
+
+       if (len > CACHEFLUSH_MAX_LEN) {
+               ret = -EPERM;
+               if (!capable(CAP_SYS_ADMIN))
+                       goto out;
+       }
+
+       ret = -EFAULT;
+       if (!access_ok(VERIFY_WRITE, addr, len))
+               goto out;
+
+       switch (operation) {
+       case CACHE_IFLUSH:
+               flush_icache_range((unsigned long)addr,
+                                  (unsigned long)addr + len);
+               ret = 0;
+               break;
+       default:
+               ret = -EINVAL;
+       }
+
+out:
+       return ret;
+}
diff --git a/arch/avr32/mm/clear_page.S b/arch/avr32/mm/clear_page.S
new file mode 100644 (file)
index 0000000..5d70dca
--- /dev/null
@@ -0,0 +1,25 @@
+/*
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/linkage.h>
+#include <asm/page.h>
+
+/*
+ * clear_page
+ * r12: P1 address (to)
+ */
+       .text
+       .global clear_page
+clear_page:
+       sub     r9, r12, -PAGE_SIZE
+       mov     r10, 0
+       mov     r11, 0
+0:      st.d    r12++, r10
+       cp      r12, r9
+       brne    0b
+       mov     pc, lr
diff --git a/arch/avr32/mm/copy_page.S b/arch/avr32/mm/copy_page.S
new file mode 100644 (file)
index 0000000..c2b3752
--- /dev/null
@@ -0,0 +1,28 @@
+/*
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/linkage.h>
+#include <asm/page.h>
+
+/*
+ * copy_page
+ *
+ * r12         to (P1 address)
+ * r11         from (P1 address)
+ * r8-r10      scratch
+ */
+       .text
+       .global copy_page
+copy_page:
+       sub     r10, r11, -(1 << PAGE_SHIFT)
+       /* pref r11[0] */
+1:     /* pref r11[8] */
+       ld.d    r8, r11++
+       st.d    r12++, r8
+       cp      r11, r10
+       brlo    1b
+       mov     pc, lr
diff --git a/arch/avr32/mm/dma-coherent.c b/arch/avr32/mm/dma-coherent.c
new file mode 100644 (file)
index 0000000..44ab8a7
--- /dev/null
@@ -0,0 +1,139 @@
+/*
+ *  Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/dma-mapping.h>
+
+#include <asm/addrspace.h>
+#include <asm/cacheflush.h>
+
+void dma_cache_sync(void *vaddr, size_t size, int direction)
+{
+       /*
+        * No need to sync an uncached area
+        */
+       if (PXSEG(vaddr) == P2SEG)
+               return;
+
+       switch (direction) {
+       case DMA_FROM_DEVICE:           /* invalidate only */
+               dma_cache_inv(vaddr, size);
+               break;
+       case DMA_TO_DEVICE:             /* writeback only */
+               dma_cache_wback(vaddr, size);
+               break;
+       case DMA_BIDIRECTIONAL:         /* writeback and invalidate */
+               dma_cache_wback_inv(vaddr, size);
+               break;
+       default:
+               BUG();
+       }
+}
+EXPORT_SYMBOL(dma_cache_sync);
+
+static struct page *__dma_alloc(struct device *dev, size_t size,
+                               dma_addr_t *handle, gfp_t gfp)
+{
+       struct page *page, *free, *end;
+       int order;
+
+       size = PAGE_ALIGN(size);
+       order = get_order(size);
+
+       page = alloc_pages(gfp, order);
+       if (!page)
+               return NULL;
+       split_page(page, order);
+
+       /*
+        * When accessing physical memory with valid cache data, we
+        * get a cache hit even if the virtual memory region is marked
+        * as uncached.
+        *
+        * Since the memory is newly allocated, there is no point in
+        * doing a writeback. If the previous owner cares, he should
+        * have flushed the cache before releasing the memory.
+        */
+       invalidate_dcache_region(phys_to_virt(page_to_phys(page)), size);
+
+       *handle = page_to_bus(page);
+       free = page + (size >> PAGE_SHIFT);
+       end = page + (1 << order);
+
+       /*
+        * Free any unused pages
+        */
+       while (free < end) {
+               __free_page(free);
+               free++;
+       }
+
+       return page;
+}
+
+static void __dma_free(struct device *dev, size_t size,
+                      struct page *page, dma_addr_t handle)
+{
+       struct page *end = page + (PAGE_ALIGN(size) >> PAGE_SHIFT);
+
+       while (page < end)
+               __free_page(page++);
+}
+
+void *dma_alloc_coherent(struct device *dev, size_t size,
+                        dma_addr_t *handle, gfp_t gfp)
+{
+       struct page *page;
+       void *ret = NULL;
+
+       page = __dma_alloc(dev, size, handle, gfp);
+       if (page)
+               ret = phys_to_uncached(page_to_phys(page));
+
+       return ret;
+}
+EXPORT_SYMBOL(dma_alloc_coherent);
+
+void dma_free_coherent(struct device *dev, size_t size,
+                      void *cpu_addr, dma_addr_t handle)
+{
+       void *addr = phys_to_cached(uncached_to_phys(cpu_addr));
+       struct page *page;
+
+       pr_debug("dma_free_coherent addr %p (phys %08lx) size %u\n",
+                cpu_addr, (unsigned long)handle, (unsigned)size);
+       BUG_ON(!virt_addr_valid(addr));
+       page = virt_to_page(addr);
+       __dma_free(dev, size, page, handle);
+}
+EXPORT_SYMBOL(dma_free_coherent);
+
+#if 0
+void *dma_alloc_writecombine(struct device *dev, size_t size,
+                            dma_addr_t *handle, gfp_t gfp)
+{
+       struct page *page;
+
+       page = __dma_alloc(dev, size, handle, gfp);
+
+       /* Now, map the page into P3 with write-combining turned on */
+       return __ioremap(page_to_phys(page), size, _PAGE_BUFFER);
+}
+EXPORT_SYMBOL(dma_alloc_writecombine);
+
+void dma_free_writecombine(struct device *dev, size_t size,
+                          void *cpu_addr, dma_addr_t handle)
+{
+       struct page *page;
+
+       iounmap(cpu_addr);
+
+       page = bus_to_page(handle);
+       __dma_free(dev, size, page, handle);
+}
+EXPORT_SYMBOL(dma_free_writecombine);
+#endif
diff --git a/arch/avr32/mm/fault.c b/arch/avr32/mm/fault.c
new file mode 100644 (file)
index 0000000..6785572
--- /dev/null
@@ -0,0 +1,315 @@
+/*
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * Based on linux/arch/sh/mm/fault.c:
+ *   Copyright (C) 1999  Niibe Yutaka
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/mm.h>
+#include <linux/module.h>
+#include <linux/pagemap.h>
+
+#include <asm/kdebug.h>
+#include <asm/mmu_context.h>
+#include <asm/sysreg.h>
+#include <asm/uaccess.h>
+#include <asm/tlb.h>
+
+#ifdef DEBUG
+static void dump_code(unsigned long pc)
+{
+       char *p = (char *)pc;
+       char val;
+       int i;
+
+
+       printk(KERN_DEBUG "Code:");
+       for (i = 0; i < 16; i++) {
+               if (__get_user(val, p + i))
+                       break;
+               printk(" %02x", val);
+       }
+       printk("\n");
+}
+#endif
+
+#ifdef CONFIG_KPROBES
+ATOMIC_NOTIFIER_HEAD(notify_page_fault_chain);
+
+/* Hook to register for page fault notifications */
+int register_page_fault_notifier(struct notifier_block *nb)
+{
+       return atomic_notifier_chain_register(&notify_page_fault_chain, nb);
+}
+
+int unregister_page_fault_notifier(struct notifier_block *nb)
+{
+       return atomic_notifier_chain_unregister(&notify_page_fault_chain, nb);
+}
+
+static inline int notify_page_fault(enum die_val val, struct pt_regs *regs,
+                                   int trap, int sig)
+{
+       struct die_args args = {
+               .regs = regs,
+               .trapnr = trap,
+       };
+       return atomic_notifier_call_chain(&notify_page_fault_chain, val, &args);
+}
+#else
+static inline int notify_page_fault(enum die_val val, struct pt_regs *regs,
+                                   int trap, int sig)
+{
+       return NOTIFY_DONE;
+}
+#endif
+
+/*
+ * This routine handles page faults. It determines the address and the
+ * problem, and then passes it off to one of the appropriate routines.
+ *
+ * ecr is the Exception Cause Register. Possible values are:
+ *   5:  Page not found (instruction access)
+ *   6:  Protection fault (instruction access)
+ *   12: Page not found (read access)
+ *   13: Page not found (write access)
+ *   14: Protection fault (read access)
+ *   15: Protection fault (write access)
+ */
+asmlinkage void do_page_fault(unsigned long ecr, struct pt_regs *regs)
+{
+       struct task_struct *tsk;
+       struct mm_struct *mm;
+       struct vm_area_struct *vma;
+       const struct exception_table_entry *fixup;
+       unsigned long address;
+       unsigned long page;
+       int writeaccess = 0;
+
+       if (notify_page_fault(DIE_PAGE_FAULT, regs,
+                             ecr, SIGSEGV) == NOTIFY_STOP)
+               return;
+
+       address = sysreg_read(TLBEAR);
+
+       tsk = current;
+       mm = tsk->mm;
+
+       /*
+        * If we're in an interrupt or have no user context, we must
+        * not take the fault...
+        */
+       if (in_atomic() || !mm || regs->sr & SYSREG_BIT(GM))
+               goto no_context;
+
+       local_irq_enable();
+
+       down_read(&mm->mmap_sem);
+
+       vma = find_vma(mm, address);
+       if (!vma)
+               goto bad_area;
+       if (vma->vm_start <= address)
+               goto good_area;
+       if (!(vma->vm_flags & VM_GROWSDOWN))
+               goto bad_area;
+       if (expand_stack(vma, address))
+               goto bad_area;
+
+       /*
+        * Ok, we have a good vm_area for this memory access, so we
+        * can handle it...
+        */
+good_area:
+       //pr_debug("good area: vm_flags = 0x%lx\n", vma->vm_flags);
+       switch (ecr) {
+       case ECR_PROTECTION_X:
+       case ECR_TLB_MISS_X:
+               if (!(vma->vm_flags & VM_EXEC))
+                       goto bad_area;
+               break;
+       case ECR_PROTECTION_R:
+       case ECR_TLB_MISS_R:
+               if (!(vma->vm_flags & (VM_READ | VM_WRITE | VM_EXEC)))
+                       goto bad_area;
+               break;
+       case ECR_PROTECTION_W:
+       case ECR_TLB_MISS_W:
+               if (!(vma->vm_flags & VM_WRITE))
+                       goto bad_area;
+               writeaccess = 1;
+               break;
+       default:
+               panic("Unhandled case %lu in do_page_fault!", ecr);
+       }
+
+       /*
+        * If for any reason at all we couldn't handle the fault, make
+        * sure we exit gracefully rather than endlessly redo the
+        * fault.
+        */
+survive:
+       switch (handle_mm_fault(mm, vma, address, writeaccess)) {
+       case VM_FAULT_MINOR:
+               tsk->min_flt++;
+               break;
+       case VM_FAULT_MAJOR:
+               tsk->maj_flt++;
+               break;
+       case VM_FAULT_SIGBUS:
+               goto do_sigbus;
+       case VM_FAULT_OOM:
+               goto out_of_memory;
+       default:
+               BUG();
+       }
+
+       up_read(&mm->mmap_sem);
+       return;
+
+       /*
+        * Something tried to access memory that isn't in our memory
+        * map. Fix it, but check if it's kernel or user first...
+        */
+bad_area:
+       pr_debug("Bad area [%s:%u]: addr %08lx, ecr %lu\n",
+                tsk->comm, tsk->pid, address, ecr);
+
+       up_read(&mm->mmap_sem);
+
+       if (user_mode(regs)) {
+               /* Hmm...we have to pass address and ecr somehow... */
+               /* tsk->thread.address = address;
+                  tsk->thread.error_code = ecr; */
+#ifdef DEBUG
+               show_regs(regs);
+               dump_code(regs->pc);
+
+               page = sysreg_read(PTBR);
+               printk("ptbr = %08lx", page);
+               if (page) {
+                       page = ((unsigned long *)page)[address >> 22];
+                       printk(" pgd = %08lx", page);
+                       if (page & _PAGE_PRESENT) {
+                               page &= PAGE_MASK;
+                               address &= 0x003ff000;
+                               page = ((unsigned long *)__va(page))[address >> PAGE_SHIFT];
+                               printk(" pte = %08lx\n", page);
+                       }
+               }
+#endif
+               pr_debug("Sending SIGSEGV to PID %d...\n",
+                       tsk->pid);
+               force_sig(SIGSEGV, tsk);
+               return;
+       }
+
+no_context:
+       pr_debug("No context\n");
+
+       /* Are we prepared to handle this kernel fault? */
+       fixup = search_exception_tables(regs->pc);
+       if (fixup) {
+               regs->pc = fixup->fixup;
+               pr_debug("Found fixup at %08lx\n", fixup->fixup);
+               return;
+       }
+
+       /*
+        * Oops. The kernel tried to access some bad page. We'll have
+        * to terminate things with extreme prejudice.
+        */
+       if (address < PAGE_SIZE)
+               printk(KERN_ALERT
+                      "Unable to handle kernel NULL pointer dereference");
+       else
+               printk(KERN_ALERT
+                      "Unable to handle kernel paging request");
+       printk(" at virtual address %08lx\n", address);
+       printk(KERN_ALERT "pc = %08lx\n", regs->pc);
+
+       page = sysreg_read(PTBR);
+       printk(KERN_ALERT "ptbr = %08lx", page);
+       if (page) {
+               page = ((unsigned long *)page)[address >> 22];
+               printk(" pgd = %08lx", page);
+               if (page & _PAGE_PRESENT) {
+                       page &= PAGE_MASK;
+                       address &= 0x003ff000;
+                       page = ((unsigned long *)__va(page))[address >> PAGE_SHIFT];
+                       printk(" pte = %08lx\n", page);
+               }
+       }
+       die("\nOops", regs, ecr);
+       do_exit(SIGKILL);
+
+       /*
+        * We ran out of memory, or some other thing happened to us
+        * that made us unable to handle the page fault gracefully.
+        */
+out_of_memory:
+       printk("Out of memory\n");
+       up_read(&mm->mmap_sem);
+       if (current->pid == 1) {
+               yield();
+               down_read(&mm->mmap_sem);
+               goto survive;
+       }
+       printk("VM: Killing process %s\n", tsk->comm);
+       if (user_mode(regs))
+               do_exit(SIGKILL);
+       goto no_context;
+
+do_sigbus:
+       up_read(&mm->mmap_sem);
+
+       /*
+        * Send a sigbus, regardless of whether we were in kernel or
+        * user mode.
+        */
+       /* address, error_code, trap_no, ... */
+#ifdef DEBUG
+       show_regs(regs);
+       dump_code(regs->pc);
+#endif
+       pr_debug("Sending SIGBUS to PID %d...\n", tsk->pid);
+       force_sig(SIGBUS, tsk);
+
+       /* Kernel mode? Handle exceptions or die */
+       if (!user_mode(regs))
+               goto no_context;
+}
+
+asmlinkage void do_bus_error(unsigned long addr, int write_access,
+                            struct pt_regs *regs)
+{
+       printk(KERN_ALERT
+              "Bus error at physical address 0x%08lx (%s access)\n",
+              addr, write_access ? "write" : "read");
+       printk(KERN_INFO "DTLB dump:\n");
+       dump_dtlb();
+       die("Bus Error", regs, write_access);
+       do_exit(SIGKILL);
+}
+
+/*
+ * This functionality is currently not possible to implement because
+ * we're using segmentation to ensure a fixed mapping of the kernel
+ * virtual address space.
+ *
+ * It would be possible to implement this, but it would require us to
+ * disable segmentation at startup and load the kernel mappings into
+ * the TLB like any other pages. There will be lots of trickery to
+ * avoid recursive invocation of the TLB miss handler, though...
+ */
+#ifdef CONFIG_DEBUG_PAGEALLOC
+void kernel_map_pages(struct page *page, int numpages, int enable)
+{
+
+}
+EXPORT_SYMBOL(kernel_map_pages);
+#endif
diff --git a/arch/avr32/mm/init.c b/arch/avr32/mm/init.c
new file mode 100644 (file)
index 0000000..3e6c410
--- /dev/null
@@ -0,0 +1,480 @@
+/*
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/swap.h>
+#include <linux/init.h>
+#include <linux/initrd.h>
+#include <linux/mmzone.h>
+#include <linux/bootmem.h>
+#include <linux/pagemap.h>
+#include <linux/pfn.h>
+#include <linux/nodemask.h>
+
+#include <asm/page.h>
+#include <asm/mmu_context.h>
+#include <asm/tlb.h>
+#include <asm/io.h>
+#include <asm/dma.h>
+#include <asm/setup.h>
+#include <asm/sections.h>
+
+DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
+
+pgd_t swapper_pg_dir[PTRS_PER_PGD];
+
+struct page *empty_zero_page;
+
+/*
+ * Cache of MMU context last used.
+ */
+unsigned long mmu_context_cache = NO_CONTEXT;
+
+#define START_PFN      (NODE_DATA(0)->bdata->node_boot_start >> PAGE_SHIFT)
+#define MAX_LOW_PFN    (NODE_DATA(0)->bdata->node_low_pfn)
+
+void show_mem(void)
+{
+       int total = 0, reserved = 0, cached = 0;
+       int slab = 0, free = 0, shared = 0;
+       pg_data_t *pgdat;
+
+       printk("Mem-info:\n");
+       show_free_areas();
+
+       for_each_online_pgdat(pgdat) {
+               struct page *page, *end;
+
+               page = pgdat->node_mem_map;
+               end = page + pgdat->node_spanned_pages;
+
+               do {
+                       total++;
+                       if (PageReserved(page))
+                               reserved++;
+                       else if (PageSwapCache(page))
+                               cached++;
+                       else if (PageSlab(page))
+                               slab++;
+                       else if (!page_count(page))
+                               free++;
+                       else
+                               shared += page_count(page) - 1;
+                       page++;
+               } while (page < end);
+       }
+
+       printk ("%d pages of RAM\n", total);
+       printk ("%d free pages\n", free);
+       printk ("%d reserved pages\n", reserved);
+       printk ("%d slab pages\n", slab);
+       printk ("%d pages shared\n", shared);
+       printk ("%d pages swap cached\n", cached);
+}
+
+static void __init print_memory_map(const char *what,
+                                   struct tag_mem_range *mem)
+{
+       printk ("%s:\n", what);
+       for (; mem; mem = mem->next) {
+               printk ("  %08lx - %08lx\n",
+                       (unsigned long)mem->addr,
+                       (unsigned long)(mem->addr + mem->size));
+       }
+}
+
+#define MAX_LOWMEM     HIGHMEM_START
+#define MAX_LOWMEM_PFN PFN_DOWN(MAX_LOWMEM)
+
+/*
+ * Sort a list of memory regions in-place by ascending address.
+ *
+ * We're using bubble sort because we only have singly linked lists
+ * with few elements.
+ */
+static void __init sort_mem_list(struct tag_mem_range **pmem)
+{
+       int done;
+       struct tag_mem_range **a, **b;
+
+       if (!*pmem)
+               return;
+
+       do {
+               done = 1;
+               a = pmem, b = &(*pmem)->next;
+               while (*b) {
+                       if ((*a)->addr > (*b)->addr) {
+                               struct tag_mem_range *tmp;
+                               tmp = (*b)->next;
+                               (*b)->next = *a;
+                               *a = *b;
+                               *b = tmp;
+                               done = 0;
+                       }
+                       a = &(*a)->next;
+                       b = &(*a)->next;
+               }
+       } while (!done);
+}
+
+/*
+ * Find a free memory region large enough for storing the
+ * bootmem bitmap.
+ */
+static unsigned long __init
+find_bootmap_pfn(const struct tag_mem_range *mem)
+{
+       unsigned long bootmap_pages, bootmap_len;
+       unsigned long node_pages = PFN_UP(mem->size);
+       unsigned long bootmap_addr = mem->addr;
+       struct tag_mem_range *reserved = mem_reserved;
+       struct tag_mem_range *ramdisk = mem_ramdisk;
+       unsigned long kern_start = virt_to_phys(_stext);
+       unsigned long kern_end = virt_to_phys(_end);
+
+       bootmap_pages = bootmem_bootmap_pages(node_pages);
+       bootmap_len = bootmap_pages << PAGE_SHIFT;
+
+       /*
+        * Find a large enough region without reserved pages for
+        * storing the bootmem bitmap. We can take advantage of the
+        * fact that all lists have been sorted.
+        *
+        * We have to check explicitly reserved regions as well as the
+        * kernel image and any RAMDISK images...
+        *
+        * Oh, and we have to make sure we don't overwrite the taglist
+        * since we're going to use it until the bootmem allocator is
+        * fully up and running.
+        */
+       while (1) {
+               if ((bootmap_addr < kern_end) &&
+                   ((bootmap_addr + bootmap_len) > kern_start))
+                       bootmap_addr = kern_end;
+
+               while (reserved &&
+                      (bootmap_addr >= (reserved->addr + reserved->size)))
+                       reserved = reserved->next;
+
+               if (reserved &&
+                   ((bootmap_addr + bootmap_len) >= reserved->addr)) {
+                       bootmap_addr = reserved->addr + reserved->size;
+                       continue;
+               }
+
+               while (ramdisk &&
+                      (bootmap_addr >= (ramdisk->addr + ramdisk->size)))
+                       ramdisk = ramdisk->next;
+
+               if (!ramdisk ||
+                   ((bootmap_addr + bootmap_len) < ramdisk->addr))
+                       break;
+
+               bootmap_addr = ramdisk->addr + ramdisk->size;
+       }
+
+       if ((PFN_UP(bootmap_addr) + bootmap_len) >= (mem->addr + mem->size))
+               return ~0UL;
+
+       return PFN_UP(bootmap_addr);
+}
+
+void __init setup_bootmem(void)
+{
+       unsigned bootmap_size;
+       unsigned long first_pfn, bootmap_pfn, pages;
+       unsigned long max_pfn, max_low_pfn;
+       unsigned long kern_start = virt_to_phys(_stext);
+       unsigned long kern_end = virt_to_phys(_end);
+       unsigned node = 0;
+       struct tag_mem_range *bank, *res;
+
+       sort_mem_list(&mem_phys);
+       sort_mem_list(&mem_reserved);
+
+       print_memory_map("Physical memory", mem_phys);
+       print_memory_map("Reserved memory", mem_reserved);
+
+       nodes_clear(node_online_map);
+
+       if (mem_ramdisk) {
+#ifdef CONFIG_BLK_DEV_INITRD
+               initrd_start = __va(mem_ramdisk->addr);
+               initrd_end = initrd_start + mem_ramdisk->size;
+
+               print_memory_map("RAMDISK images", mem_ramdisk);
+               if (mem_ramdisk->next)
+                       printk(KERN_WARNING
+                              "Warning: Only the first RAMDISK image "
+                              "will be used\n");
+               sort_mem_list(&mem_ramdisk);
+#else
+               printk(KERN_WARNING "RAM disk image present, but "
+                      "no initrd support in kernel!\n");
+#endif
+       }
+
+       if (mem_phys->next)
+               printk(KERN_WARNING "Only using first memory bank\n");
+
+       for (bank = mem_phys; bank; bank = NULL) {
+               first_pfn = PFN_UP(bank->addr);
+               max_low_pfn = max_pfn = PFN_DOWN(bank->addr + bank->size);
+               bootmap_pfn = find_bootmap_pfn(bank);
+               if (bootmap_pfn > max_pfn)
+                       panic("No space for bootmem bitmap!\n");
+
+               if (max_low_pfn > MAX_LOWMEM_PFN) {
+                       max_low_pfn = MAX_LOWMEM_PFN;
+#ifndef CONFIG_HIGHMEM
+                       /*
+                        * Lowmem is memory that can be addressed
+                        * directly through P1/P2
+                        */
+                       printk(KERN_WARNING
+                              "Node %u: Only %ld MiB of memory will be used.\n",
+                              node, MAX_LOWMEM >> 20);
+                       printk(KERN_WARNING "Use a HIGHMEM enabled kernel.\n");
+#else
+#error HIGHMEM is not supported by AVR32 yet
+#endif
+               }
+
+               /* Initialize the boot-time allocator with low memory only. */
+               bootmap_size = init_bootmem_node(NODE_DATA(node), bootmap_pfn,
+                                                first_pfn, max_low_pfn);
+
+               printk("Node %u: bdata = %p, bdata->node_bootmem_map = %p\n",
+                      node, NODE_DATA(node)->bdata,
+                      NODE_DATA(node)->bdata->node_bootmem_map);
+
+               /*
+                * Register fully available RAM pages with the bootmem
+                * allocator.
+                */
+               pages = max_low_pfn - first_pfn;
+               free_bootmem_node (NODE_DATA(node), PFN_PHYS(first_pfn),
+                                  PFN_PHYS(pages));
+
+               /*
+                * Reserve space for the kernel image (if present in
+                * this node)...
+                */
+               if ((kern_start >= PFN_PHYS(first_pfn)) &&
+                   (kern_start < PFN_PHYS(max_pfn))) {
+                       printk("Node %u: Kernel image %08lx - %08lx\n",
+                              node, kern_start, kern_end);
+                       reserve_bootmem_node(NODE_DATA(node), kern_start,
+                                            kern_end - kern_start);
+               }
+
+               /* ...the bootmem bitmap... */
+               reserve_bootmem_node(NODE_DATA(node),
+                                    PFN_PHYS(bootmap_pfn),
+                                    bootmap_size);
+
+               /* ...any RAMDISK images... */
+               for (res = mem_ramdisk; res; res = res->next) {
+                       if (res->addr > PFN_PHYS(max_pfn))
+                               break;
+
+                       if (res->addr >= PFN_PHYS(first_pfn)) {
+                               printk("Node %u: RAMDISK %08lx - %08lx\n",
+                                      node,
+                                      (unsigned long)res->addr,
+                                      (unsigned long)(res->addr + res->size));
+                               reserve_bootmem_node(NODE_DATA(node),
+                                                    res->addr, res->size);
+                       }
+               }
+
+               /* ...and any other reserved regions. */
+               for (res = mem_reserved; res; res = res->next) {
+                       if (res->addr > PFN_PHYS(max_pfn))
+                               break;
+
+                       if (res->addr >= PFN_PHYS(first_pfn)) {
+                               printk("Node %u: Reserved %08lx - %08lx\n",
+                                      node,
+                                      (unsigned long)res->addr,
+                                      (unsigned long)(res->addr + res->size));
+                               reserve_bootmem_node(NODE_DATA(node),
+                                                    res->addr, res->size);
+                       }
+               }
+
+               node_set_online(node);
+       }
+}
+
+/*
+ * paging_init() sets up the page tables
+ *
+ * This routine also unmaps the page at virtual kernel address 0, so
+ * that we can trap those pesky NULL-reference errors in the kernel.
+ */
+void __init paging_init(void)
+{
+       extern unsigned long _evba;
+       void *zero_page;
+       int nid;
+
+       /*
+        * Make sure we can handle exceptions before enabling
+        * paging. Not that we should ever _get_ any exceptions this
+        * early, but you never know...
+        */
+       printk("Exception vectors start at %p\n", &_evba);
+       sysreg_write(EVBA, (unsigned long)&_evba);
+
+       /*
+        * Since we are ready to handle exceptions now, we should let
+        * the CPU generate them...
+        */
+       __asm__ __volatile__ ("csrf %0" : : "i"(SR_EM_BIT));
+
+       /*
+        * Allocate the zero page. The allocator will panic if it
+        * can't satisfy the request, so no need to check.
+        */
+       zero_page = alloc_bootmem_low_pages_node(NODE_DATA(0),
+                                                PAGE_SIZE);
+
+       {
+               pgd_t *pg_dir;
+               int i;
+
+               pg_dir = swapper_pg_dir;
+               sysreg_write(PTBR, (unsigned long)pg_dir);
+
+               for (i = 0; i < PTRS_PER_PGD; i++)
+                       pgd_val(pg_dir[i]) = 0;
+
+               enable_mmu();
+               printk ("CPU: Paging enabled\n");
+       }
+
+       for_each_online_node(nid) {
+               pg_data_t *pgdat = NODE_DATA(nid);
+               unsigned long zones_size[MAX_NR_ZONES];
+               unsigned long low, start_pfn;
+
+               start_pfn = pgdat->bdata->node_boot_start;
+               start_pfn >>= PAGE_SHIFT;
+               low = pgdat->bdata->node_low_pfn;
+
+               memset(zones_size, 0, sizeof(zones_size));
+               zones_size[ZONE_NORMAL] = low - start_pfn;
+
+               printk("Node %u: start_pfn = 0x%lx, low = 0x%lx\n",
+                      nid, start_pfn, low);
+
+               free_area_init_node(nid, pgdat, zones_size, start_pfn, NULL);
+
+               printk("Node %u: mem_map starts at %p\n",
+                      pgdat->node_id, pgdat->node_mem_map);
+       }
+
+       mem_map = NODE_DATA(0)->node_mem_map;
+
+       memset(zero_page, 0, PAGE_SIZE);
+       empty_zero_page = virt_to_page(zero_page);
+       flush_dcache_page(empty_zero_page);
+}
+
+void __init mem_init(void)
+{
+       int codesize, reservedpages, datasize, initsize;
+       int nid, i;
+
+       reservedpages = 0;
+       high_memory = NULL;
+
+       /* this will put all low memory onto the freelists */
+       for_each_online_node(nid) {
+               pg_data_t *pgdat = NODE_DATA(nid);
+               unsigned long node_pages = 0;
+               void *node_high_memory;
+
+               num_physpages += pgdat->node_present_pages;
+
+               if (pgdat->node_spanned_pages != 0)
+                       node_pages = free_all_bootmem_node(pgdat);
+
+               totalram_pages += node_pages;
+
+               for (i = 0; i < node_pages; i++)
+                       if (PageReserved(pgdat->node_mem_map + i))
+                               reservedpages++;
+
+               node_high_memory = (void *)((pgdat->node_start_pfn
+                                            + pgdat->node_spanned_pages)
+                                           << PAGE_SHIFT);
+               if (node_high_memory > high_memory)
+                       high_memory = node_high_memory;
+       }
+
+       max_mapnr = MAP_NR(high_memory);
+
+       codesize = (unsigned long)_etext - (unsigned long)_text;
+       datasize = (unsigned long)_edata - (unsigned long)_data;
+       initsize = (unsigned long)__init_end - (unsigned long)__init_begin;
+
+       printk ("Memory: %luk/%luk available (%dk kernel code, "
+               "%dk reserved, %dk data, %dk init)\n",
+               (unsigned long)nr_free_pages() << (PAGE_SHIFT - 10),
+               totalram_pages << (PAGE_SHIFT - 10),
+               codesize >> 10,
+               reservedpages << (PAGE_SHIFT - 10),
+               datasize >> 10,
+               initsize >> 10);
+}
+
+static inline void free_area(unsigned long addr, unsigned long end, char *s)
+{
+       unsigned int size = (end - addr) >> 10;
+
+       for (; addr < end; addr += PAGE_SIZE) {
+               struct page *page = virt_to_page(addr);
+               ClearPageReserved(page);
+               init_page_count(page);
+               free_page(addr);
+               totalram_pages++;
+       }
+
+       if (size && s)
+               printk(KERN_INFO "Freeing %s memory: %dK (%lx - %lx)\n",
+                      s, size, end - (size << 10), end);
+}
+
+void free_initmem(void)
+{
+       free_area((unsigned long)__init_begin, (unsigned long)__init_end,
+                 "init");
+}
+
+#ifdef CONFIG_BLK_DEV_INITRD
+
+static int keep_initrd;
+
+void free_initrd_mem(unsigned long start, unsigned long end)
+{
+       if (!keep_initrd)
+               free_area(start, end, "initrd");
+}
+
+static int __init keepinitrd_setup(char *__unused)
+{
+       keep_initrd = 1;
+       return 1;
+}
+
+__setup("keepinitrd", keepinitrd_setup);
+#endif
diff --git a/arch/avr32/mm/ioremap.c b/arch/avr32/mm/ioremap.c
new file mode 100644 (file)
index 0000000..5360218
--- /dev/null
@@ -0,0 +1,197 @@
+/*
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/vmalloc.h>
+#include <linux/module.h>
+
+#include <asm/io.h>
+#include <asm/pgtable.h>
+#include <asm/cacheflush.h>
+#include <asm/tlbflush.h>
+#include <asm/addrspace.h>
+
+static inline int remap_area_pte(pte_t *pte, unsigned long address,
+                                 unsigned long end, unsigned long phys_addr,
+                                 pgprot_t prot)
+{
+       unsigned long pfn;
+
+       pfn = phys_addr >> PAGE_SHIFT;
+       do {
+               WARN_ON(!pte_none(*pte));
+
+               set_pte(pte, pfn_pte(pfn, prot));
+               address += PAGE_SIZE;
+               pfn++;
+               pte++;
+       } while (address && (address < end));
+
+       return 0;
+}
+
+static inline int remap_area_pmd(pmd_t *pmd, unsigned long address,
+                                unsigned long end, unsigned long phys_addr,
+                                pgprot_t prot)
+{
+       unsigned long next;
+
+       phys_addr -= address;
+
+       do {
+               pte_t *pte = pte_alloc_kernel(pmd, address);
+               if (!pte)
+                       return -ENOMEM;
+
+               next = (address + PMD_SIZE) & PMD_MASK;
+               if (remap_area_pte(pte, address, next,
+                                  address + phys_addr, prot))
+                       return -ENOMEM;
+
+               address = next;
+               pmd++;
+       } while (address && (address < end));
+       return 0;
+}
+
+static int remap_area_pud(pud_t *pud, unsigned long address,
+                         unsigned long end, unsigned long phys_addr,
+                         pgprot_t prot)
+{
+       unsigned long next;
+
+       phys_addr -= address;
+
+       do {
+               pmd_t *pmd = pmd_alloc(&init_mm, pud, address);
+               if (!pmd)
+                       return -ENOMEM;
+               next = (address + PUD_SIZE) & PUD_MASK;
+               if (remap_area_pmd(pmd, address, next,
+                                  phys_addr + address, prot))
+                       return -ENOMEM;
+
+               address = next;
+               pud++;
+       } while (address && address < end);
+
+       return 0;
+}
+
+static int remap_area_pages(unsigned long address, unsigned long phys_addr,
+                           size_t size, pgprot_t prot)
+{
+       unsigned long end = address + size;
+       unsigned long next;
+       pgd_t *pgd;
+       int err = 0;
+
+       phys_addr -= address;
+
+       pgd = pgd_offset_k(address);
+       flush_cache_all();
+       BUG_ON(address >= end);
+
+       spin_lock(&init_mm.page_table_lock);
+       do {
+               pud_t *pud = pud_alloc(&init_mm, pgd, address);
+
+               err = -ENOMEM;
+               if (!pud)
+                       break;
+
+               next = (address + PGDIR_SIZE) & PGDIR_MASK;
+               if (next < address || next > end)
+                       next = end;
+               err = remap_area_pud(pud, address, next,
+                                    phys_addr + address, prot);
+               if (err)
+                       break;
+
+               address = next;
+               pgd++;
+       } while (address && (address < end));
+
+       spin_unlock(&init_mm.page_table_lock);
+       flush_tlb_all();
+       return err;
+}
+
+/*
+ * Re-map an arbitrary physical address space into the kernel virtual
+ * address space. Needed when the kernel wants to access physical
+ * memory directly.
+ */
+void __iomem *__ioremap(unsigned long phys_addr, size_t size,
+                       unsigned long flags)
+{
+       void *addr;
+       struct vm_struct *area;
+       unsigned long offset, last_addr;
+       pgprot_t prot;
+
+       /*
+        * Check if we can simply use the P4 segment. This area is
+        * uncacheable, so if caching/buffering is requested, we can't
+        * use it.
+        */
+       if ((phys_addr >= P4SEG) && (flags == 0))
+               return (void __iomem *)phys_addr;
+
+       /* Don't allow wraparound or zero size */
+       last_addr = phys_addr + size - 1;
+       if (!size || last_addr < phys_addr)
+               return NULL;
+
+       /*
+        * XXX: When mapping regular RAM, we'd better make damn sure
+        * it's never used for anything else.  But this is really the
+        * caller's responsibility...
+        */
+       if (PHYSADDR(P2SEGADDR(phys_addr)) == phys_addr)
+               return (void __iomem *)P2SEGADDR(phys_addr);
+
+       /* Mappings have to be page-aligned */
+       offset = phys_addr & ~PAGE_MASK;
+       phys_addr &= PAGE_MASK;
+       size = PAGE_ALIGN(last_addr + 1) - phys_addr;
+
+       prot = __pgprot(_PAGE_PRESENT | _PAGE_RW | _PAGE_DIRTY
+                       | _PAGE_ACCESSED | _PAGE_TYPE_SMALL | flags);
+
+       /*
+        * Ok, go for it..
+        */
+       area = get_vm_area(size, VM_IOREMAP);
+       if (!area)
+               return NULL;
+       area->phys_addr = phys_addr;
+       addr = area->addr;
+       if (remap_area_pages((unsigned long)addr, phys_addr, size, prot)) {
+               vunmap(addr);
+               return NULL;
+       }
+
+       return (void __iomem *)(offset + (char *)addr);
+}
+EXPORT_SYMBOL(__ioremap);
+
+void __iounmap(void __iomem *addr)
+{
+       struct vm_struct *p;
+
+       if ((unsigned long)addr >= P4SEG)
+               return;
+
+       p = remove_vm_area((void *)(PAGE_MASK & (unsigned long __force)addr));
+       if (unlikely(!p)) {
+               printk (KERN_ERR "iounmap: bad address %p\n", addr);
+               return;
+       }
+
+       kfree (p);
+}
+EXPORT_SYMBOL(__iounmap);
diff --git a/arch/avr32/mm/tlb.c b/arch/avr32/mm/tlb.c
new file mode 100644 (file)
index 0000000..5d0523b
--- /dev/null
@@ -0,0 +1,378 @@
+/*
+ * AVR32 TLB operations
+ *
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/mm.h>
+
+#include <asm/mmu_context.h>
+
+#define _TLBEHI_I      0x100
+
+void show_dtlb_entry(unsigned int index)
+{
+       unsigned int tlbehi, tlbehi_save, tlbelo, mmucr, mmucr_save, flags;
+
+       local_irq_save(flags);
+       mmucr_save = sysreg_read(MMUCR);
+       tlbehi_save = sysreg_read(TLBEHI);
+       mmucr = mmucr_save & 0x13;
+       mmucr |= index << 14;
+       sysreg_write(MMUCR, mmucr);
+
+       asm volatile("tlbr" : : : "memory");
+       cpu_sync_pipeline();
+
+       tlbehi = sysreg_read(TLBEHI);
+       tlbelo = sysreg_read(TLBELO);
+
+       printk("%2u: %c %c %02x   %05x %05x %o  %o  %c %c %c %c\n",
+              index,
+              (tlbehi & 0x200)?'1':'0',
+              (tlbelo & 0x100)?'1':'0',
+              (tlbehi & 0xff),
+              (tlbehi >> 12), (tlbelo >> 12),
+              (tlbelo >> 4) & 7, (tlbelo >> 2) & 3,
+              (tlbelo & 0x200)?'1':'0',
+              (tlbelo & 0x080)?'1':'0',
+              (tlbelo & 0x001)?'1':'0',
+              (tlbelo & 0x002)?'1':'0');
+
+       sysreg_write(MMUCR, mmucr_save);
+       sysreg_write(TLBEHI, tlbehi_save);
+       cpu_sync_pipeline();
+       local_irq_restore(flags);
+}
+
+void dump_dtlb(void)
+{
+       unsigned int i;
+
+       printk("ID  V G ASID VPN   PFN   AP SZ C B W D\n");
+       for (i = 0; i < 32; i++)
+               show_dtlb_entry(i);
+}
+
+static unsigned long last_mmucr;
+
+static inline void set_replacement_pointer(unsigned shift)
+{
+       unsigned long mmucr, mmucr_save;
+
+       mmucr = mmucr_save = sysreg_read(MMUCR);
+
+       /* Does this mapping already exist? */
+       __asm__ __volatile__(
+               "       tlbs\n"
+               "       mfsr %0, %1"
+               : "=r"(mmucr)
+               : "i"(SYSREG_MMUCR));
+
+       if (mmucr & SYSREG_BIT(MMUCR_N)) {
+               /* Not found -- pick a not-recently-accessed entry */
+               unsigned long rp;
+               unsigned long tlbar = sysreg_read(TLBARLO);
+
+               rp = 32 - fls(tlbar);
+               if (rp == 32) {
+                       rp = 0;
+                       sysreg_write(TLBARLO, -1L);
+               }
+
+               mmucr &= 0x13;
+               mmucr |= (rp << shift);
+
+               sysreg_write(MMUCR, mmucr);
+       }
+
+       last_mmucr = mmucr;
+}
+
+static void update_dtlb(unsigned long address, pte_t pte, unsigned long asid)
+{
+       unsigned long vpn;
+
+       vpn = (address & MMU_VPN_MASK) | _TLBEHI_VALID | asid;
+       sysreg_write(TLBEHI, vpn);
+       cpu_sync_pipeline();
+
+       set_replacement_pointer(14);
+
+       sysreg_write(TLBELO, pte_val(pte) & _PAGE_FLAGS_HARDWARE_MASK);
+
+       /* Let's go */
+       asm volatile("nop\n\ttlbw" : : : "memory");
+       cpu_sync_pipeline();
+}
+
+void update_mmu_cache(struct vm_area_struct *vma,
+                     unsigned long address, pte_t pte)
+{
+       unsigned long flags;
+
+       /* ptrace may call this routine */
+       if (vma && current->active_mm != vma->vm_mm)
+               return;
+
+       local_irq_save(flags);
+       update_dtlb(address, pte, get_asid());
+       local_irq_restore(flags);
+}
+
+void __flush_tlb_page(unsigned long asid, unsigned long page)
+{
+       unsigned long mmucr, tlbehi;
+
+       page |= asid;
+       sysreg_write(TLBEHI, page);
+       cpu_sync_pipeline();
+       asm volatile("tlbs");
+       mmucr = sysreg_read(MMUCR);
+
+       if (!(mmucr & SYSREG_BIT(MMUCR_N))) {
+               unsigned long tlbarlo;
+               unsigned long entry;
+
+               /* Clear the "valid" bit */
+               tlbehi = sysreg_read(TLBEHI);
+               tlbehi &= ~_TLBEHI_VALID;
+               sysreg_write(TLBEHI, tlbehi);
+               cpu_sync_pipeline();
+
+               /* mark the entry as "not accessed" */
+               entry = (mmucr >> 14) & 0x3f;
+               tlbarlo = sysreg_read(TLBARLO);
+               tlbarlo |= (0x80000000 >> entry);
+               sysreg_write(TLBARLO, tlbarlo);
+
+               /* update the entry with valid bit clear */
+               asm volatile("tlbw");
+               cpu_sync_pipeline();
+       }
+}
+
+void flush_tlb_page(struct vm_area_struct *vma, unsigned long page)
+{
+       if (vma->vm_mm && vma->vm_mm->context != NO_CONTEXT) {
+               unsigned long flags, asid;
+               unsigned long saved_asid = MMU_NO_ASID;
+
+               asid = vma->vm_mm->context & MMU_CONTEXT_ASID_MASK;
+               page &= PAGE_MASK;
+
+               local_irq_save(flags);
+               if (vma->vm_mm != current->mm) {
+                       saved_asid = get_asid();
+                       set_asid(asid);
+               }
+
+               __flush_tlb_page(asid, page);
+
+               if (saved_asid != MMU_NO_ASID)
+                       set_asid(saved_asid);
+               local_irq_restore(flags);
+       }
+}
+
+void flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
+                    unsigned long end)
+{
+       struct mm_struct *mm = vma->vm_mm;
+
+       if (mm->context != NO_CONTEXT) {
+               unsigned long flags;
+               int size;
+
+               local_irq_save(flags);
+               size = (end - start + (PAGE_SIZE - 1)) >> PAGE_SHIFT;
+               if (size > (MMU_DTLB_ENTRIES / 4)) { /* Too many entries to flush */
+                       mm->context = NO_CONTEXT;
+                       if (mm == current->mm)
+                               activate_context(mm);
+               } else {
+                       unsigned long asid = mm->context & MMU_CONTEXT_ASID_MASK;
+                       unsigned long saved_asid = MMU_NO_ASID;
+
+                       start &= PAGE_MASK;
+                       end += (PAGE_SIZE - 1);
+                       end &= PAGE_MASK;
+                       if (mm != current->mm) {
+                               saved_asid = get_asid();
+                               set_asid(asid);
+                       }
+
+                       while (start < end) {
+                               __flush_tlb_page(asid, start);
+                               start += PAGE_SIZE;
+                       }
+                       if (saved_asid != MMU_NO_ASID)
+                               set_asid(saved_asid);
+               }
+               local_irq_restore(flags);
+       }
+}
+
+/*
+ * TODO: If this is only called for addresses > TASK_SIZE, we can probably
+ * skip the ASID stuff and just use the Global bit...
+ */
+void flush_tlb_kernel_range(unsigned long start, unsigned long end)
+{
+       unsigned long flags;
+       int size;
+
+       local_irq_save(flags);
+       size = (end - start + (PAGE_SIZE - 1)) >> PAGE_SHIFT;
+       if (size > (MMU_DTLB_ENTRIES / 4)) { /* Too many entries to flush */
+               flush_tlb_all();
+       } else {
+               unsigned long asid = init_mm.context & MMU_CONTEXT_ASID_MASK;
+               unsigned long saved_asid = get_asid();
+
+               start &= PAGE_MASK;
+               end += (PAGE_SIZE - 1);
+               end &= PAGE_MASK;
+               set_asid(asid);
+               while (start < end) {
+                       __flush_tlb_page(asid, start);
+                       start += PAGE_SIZE;
+               }
+               set_asid(saved_asid);
+       }
+       local_irq_restore(flags);
+}
+
+void flush_tlb_mm(struct mm_struct *mm)
+{
+       /* Invalidate all TLB entries of this process by getting a new ASID */
+       if (mm->context != NO_CONTEXT) {
+               unsigned long flags;
+
+               local_irq_save(flags);
+               mm->context = NO_CONTEXT;
+               if (mm == current->mm)
+                       activate_context(mm);
+               local_irq_restore(flags);
+       }
+}
+
+void flush_tlb_all(void)
+{
+       unsigned long flags;
+
+       local_irq_save(flags);
+       sysreg_write(MMUCR, sysreg_read(MMUCR) | SYSREG_BIT(MMUCR_I));
+       local_irq_restore(flags);
+}
+
+#ifdef CONFIG_PROC_FS
+
+#include <linux/seq_file.h>
+#include <linux/proc_fs.h>
+#include <linux/init.h>
+
+static void *tlb_start(struct seq_file *tlb, loff_t *pos)
+{
+       static unsigned long tlb_index;
+
+       if (*pos >= 32)
+               return NULL;
+
+       tlb_index = 0;
+       return &tlb_index;
+}
+
+static void *tlb_next(struct seq_file *tlb, void *v, loff_t *pos)
+{
+       unsigned long *index = v;
+
+       if (*index >= 31)
+               return NULL;
+
+       ++*pos;
+       ++*index;
+       return index;
+}
+
+static void tlb_stop(struct seq_file *tlb, void *v)
+{
+
+}
+
+static int tlb_show(struct seq_file *tlb, void *v)
+{
+       unsigned int tlbehi, tlbehi_save, tlbelo, mmucr, mmucr_save, flags;
+       unsigned long *index = v;
+
+       if (*index == 0)
+               seq_puts(tlb, "ID  V G ASID VPN   PFN   AP SZ C B W D\n");
+
+       BUG_ON(*index >= 32);
+
+       local_irq_save(flags);
+       mmucr_save = sysreg_read(MMUCR);
+       tlbehi_save = sysreg_read(TLBEHI);
+       mmucr = mmucr_save & 0x13;
+       mmucr |= *index << 14;
+       sysreg_write(MMUCR, mmucr);
+
+       asm volatile("tlbr" : : : "memory");
+       cpu_sync_pipeline();
+
+       tlbehi = sysreg_read(TLBEHI);
+       tlbelo = sysreg_read(TLBELO);
+
+       sysreg_write(MMUCR, mmucr_save);
+       sysreg_write(TLBEHI, tlbehi_save);
+       cpu_sync_pipeline();
+       local_irq_restore(flags);
+
+       seq_printf(tlb, "%2lu: %c %c %02x   %05x %05x %o  %o  %c %c %c %c\n",
+              *index,
+              (tlbehi & 0x200)?'1':'0',
+              (tlbelo & 0x100)?'1':'0',
+              (tlbehi & 0xff),
+              (tlbehi >> 12), (tlbelo >> 12),
+              (tlbelo >> 4) & 7, (tlbelo >> 2) & 3,
+              (tlbelo & 0x200)?'1':'0',
+              (tlbelo & 0x080)?'1':'0',
+              (tlbelo & 0x001)?'1':'0',
+              (tlbelo & 0x002)?'1':'0');
+
+       return 0;
+}
+
+static struct seq_operations tlb_ops = {
+       .start          = tlb_start,
+       .next           = tlb_next,
+       .stop           = tlb_stop,
+       .show           = tlb_show,
+};
+
+static int tlb_open(struct inode *inode, struct file *file)
+{
+       return seq_open(file, &tlb_ops);
+}
+
+static struct file_operations proc_tlb_operations = {
+       .open           = tlb_open,
+       .read           = seq_read,
+       .llseek         = seq_lseek,
+       .release        = seq_release,
+};
+
+static int __init proctlb_init(void)
+{
+       struct proc_dir_entry *entry;
+
+       entry = create_proc_entry("tlb", 0, NULL);
+       if (entry)
+               entry->proc_fops = &proc_tlb_operations;
+       return 0;
+}
+late_initcall(proctlb_init);
+#endif /* CONFIG_PROC_FS */
diff --git a/include/asm-avr32/Kbuild b/include/asm-avr32/Kbuild
new file mode 100644 (file)
index 0000000..8770e73
--- /dev/null
@@ -0,0 +1,3 @@
+include include/asm-generic/Kbuild.asm
+
+headers-y      += cachectl.h
diff --git a/include/asm-avr32/a.out.h b/include/asm-avr32/a.out.h
new file mode 100644 (file)
index 0000000..50bf6e3
--- /dev/null
@@ -0,0 +1,26 @@
+#ifndef __ASM_AVR32_A_OUT_H
+#define __ASM_AVR32_A_OUT_H
+
+struct exec
+{
+  unsigned long a_info;                /* Use macros N_MAGIC, etc for access */
+  unsigned a_text;             /* length of text, in bytes */
+  unsigned a_data;             /* length of data, in bytes */
+  unsigned a_bss;              /* length of uninitialized data area for file, in bytes */
+  unsigned a_syms;             /* length of symbol table data in file, in bytes */
+  unsigned a_entry;            /* start address */
+  unsigned a_trsize;           /* length of relocation info for text, in bytes */
+  unsigned a_drsize;           /* length of relocation info for data, in bytes */
+};
+
+#define N_TRSIZE(a)    ((a).a_trsize)
+#define N_DRSIZE(a)    ((a).a_drsize)
+#define N_SYMSIZE(a)   ((a).a_syms)
+
+#ifdef __KERNEL__
+
+#define STACK_TOP      TASK_SIZE
+
+#endif
+
+#endif /* __ASM_AVR32_A_OUT_H */
diff --git a/include/asm-avr32/addrspace.h b/include/asm-avr32/addrspace.h
new file mode 100644 (file)
index 0000000..3667948
--- /dev/null
@@ -0,0 +1,43 @@
+/*
+ * Defitions for the address spaces of the AVR32 CPUs. Heavily based on
+ * include/asm-sh/addrspace.h
+ *
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef __ASM_AVR32_ADDRSPACE_H
+#define __ASM_AVR32_ADDRSPACE_H
+
+#ifdef CONFIG_MMU
+
+/* Memory segments when segmentation is enabled */
+#define P0SEG          0x00000000
+#define P1SEG          0x80000000
+#define P2SEG          0xa0000000
+#define P3SEG          0xc0000000
+#define P4SEG          0xe0000000
+
+/* Returns the privileged segment base of a given address */
+#define PXSEG(a)       (((unsigned long)(a)) & 0xe0000000)
+
+/* Returns the physical address of a PnSEG (n=1,2) address */
+#define PHYSADDR(a)    (((unsigned long)(a)) & 0x1fffffff)
+
+/*
+ * Map an address to a certain privileged segment
+ */
+#define P1SEGADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) \
+                                     | P1SEG))
+#define P2SEGADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) \
+                                     | P2SEG))
+#define P3SEGADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) \
+                                     | P3SEG))
+#define P4SEGADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) \
+                                     | P4SEG))
+
+#endif /* CONFIG_MMU */
+
+#endif /* __ASM_AVR32_ADDRSPACE_H */
diff --git a/include/asm-avr32/arch-at32ap/at91rm9200_pdc.h b/include/asm-avr32/arch-at32ap/at91rm9200_pdc.h
new file mode 100644 (file)
index 0000000..ce1150d
--- /dev/null
@@ -0,0 +1,36 @@
+/*
+ * include/asm-arm/arch-at91rm9200/at91rm9200_pdc.h
+ *
+ * Copyright (C) 2005 Ivan Kokshaysky
+ * Copyright (C) SAN People
+ *
+ * Peripheral Data Controller (PDC) registers.
+ * Based on AT91RM9200 datasheet revision E.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#ifndef AT91RM9200_PDC_H
+#define AT91RM9200_PDC_H
+
+#define AT91_PDC_RPR           0x100   /* Receive Pointer Register */
+#define AT91_PDC_RCR           0x104   /* Receive Counter Register */
+#define AT91_PDC_TPR           0x108   /* Transmit Pointer Register */
+#define AT91_PDC_TCR           0x10c   /* Transmit Counter Register */
+#define AT91_PDC_RNPR          0x110   /* Receive Next Pointer Register */
+#define AT91_PDC_RNCR          0x114   /* Receive Next Counter Register */
+#define AT91_PDC_TNPR          0x118   /* Transmit Next Pointer Register */
+#define AT91_PDC_TNCR          0x11c   /* Transmit Next Counter Register */
+
+#define AT91_PDC_PTCR          0x120   /* Transfer Control Register */
+#define                AT91_PDC_RXTEN          (1 << 0)        /* Receiver Transfer Enable */
+#define                AT91_PDC_RXTDIS         (1 << 1)        /* Receiver Transfer Disable */
+#define                AT91_PDC_TXTEN          (1 << 8)        /* Transmitter Transfer Enable */
+#define                AT91_PDC_TXTDIS         (1 << 9)        /* Transmitter Transfer Disable */
+
+#define AT91_PDC_PTSR          0x124   /* Transfer Status Register */
+
+#endif
diff --git a/include/asm-avr32/arch-at32ap/at91rm9200_usart.h b/include/asm-avr32/arch-at32ap/at91rm9200_usart.h
new file mode 100644 (file)
index 0000000..79f851e
--- /dev/null
@@ -0,0 +1,123 @@
+/*
+ * include/asm-arm/arch-at91rm9200/at91rm9200_usart.h
+ *
+ * Copyright (C) 2005 Ivan Kokshaysky
+ * Copyright (C) SAN People
+ *
+ * USART registers.
+ * Based on AT91RM9200 datasheet revision E.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#ifndef AT91RM9200_USART_H
+#define AT91RM9200_USART_H
+
+#define AT91_US_CR             0x00                    /* Control Register */
+#define                AT91_US_RSTRX           (1 <<  2)               /* Reset Receiver */
+#define                AT91_US_RSTTX           (1 <<  3)               /* Reset Transmitter */
+#define                AT91_US_RXEN            (1 <<  4)               /* Receiver Enable */
+#define                AT91_US_RXDIS           (1 <<  5)               /* Receiver Disable */
+#define                AT91_US_TXEN            (1 <<  6)               /* Transmitter Enable */
+#define                AT91_US_TXDIS           (1 <<  7)               /* Transmitter Disable */
+#define                AT91_US_RSTSTA          (1 <<  8)               /* Reset Status Bits */
+#define                AT91_US_STTBRK          (1 <<  9)               /* Start Break */
+#define                AT91_US_STPBRK          (1 << 10)               /* Stop Break */
+#define                AT91_US_STTTO           (1 << 11)               /* Start Time-out */
+#define                AT91_US_SENDA           (1 << 12)               /* Send Address */
+#define                AT91_US_RSTIT           (1 << 13)               /* Reset Iterations */
+#define                AT91_US_RSTNACK         (1 << 14)               /* Reset Non Acknowledge */
+#define                AT91_US_RETTO           (1 << 15)               /* Rearm Time-out */
+#define                AT91_US_DTREN           (1 << 16)               /* Data Terminal Ready Enable */
+#define                AT91_US_DTRDIS          (1 << 17)               /* Data Terminal Ready Disable */
+#define                AT91_US_RTSEN           (1 << 18)               /* Request To Send Enable */
+#define                AT91_US_RTSDIS          (1 << 19)               /* Request To Send Disable */
+
+#define AT91_US_MR             0x04                    /* Mode Register */
+#define                AT91_US_USMODE          (0xf <<  0)             /* Mode of the USART */
+#define                        AT91_US_USMODE_NORMAL           0
+#define                        AT91_US_USMODE_RS485            1
+#define                        AT91_US_USMODE_HWHS             2
+#define                        AT91_US_USMODE_MODEM            3
+#define                        AT91_US_USMODE_ISO7816_T0       4
+#define                        AT91_US_USMODE_ISO7816_T1       6
+#define                        AT91_US_USMODE_IRDA             8
+#define                AT91_US_USCLKS          (3   <<  4)             /* Clock Selection */
+#define                AT91_US_CHRL            (3   <<  6)             /* Character Length */
+#define                        AT91_US_CHRL_5                  (0 <<  6)
+#define                        AT91_US_CHRL_6                  (1 <<  6)
+#define                        AT91_US_CHRL_7                  (2 <<  6)
+#define                        AT91_US_CHRL_8                  (3 <<  6)
+#define                AT91_US_SYNC            (1 <<  8)               /* Synchronous Mode Select */
+#define                AT91_US_PAR             (7 <<  9)               /* Parity Type */
+#define                        AT91_US_PAR_EVEN                (0 <<  9)
+#define                        AT91_US_PAR_ODD                 (1 <<  9)
+#define                        AT91_US_PAR_SPACE               (2 <<  9)
+#define                        AT91_US_PAR_MARK                (3 <<  9)
+#define                        AT91_US_PAR_NONE                (4 <<  9)
+#define                        AT91_US_PAR_MULTI_DROP          (6 <<  9)
+#define                AT91_US_NBSTOP          (3 << 12)               /* Number of Stop Bits */
+#define                        AT91_US_NBSTOP_1                (0 << 12)
+#define                        AT91_US_NBSTOP_1_5              (1 << 12)
+#define                        AT91_US_NBSTOP_2                (2 << 12)
+#define                AT91_US_CHMODE          (3 << 14)               /* Channel Mode */
+#define                        AT91_US_CHMODE_NORMAL           (0 << 14)
+#define                        AT91_US_CHMODE_ECHO             (1 << 14)
+#define                        AT91_US_CHMODE_LOC_LOOP         (2 << 14)
+#define                        AT91_US_CHMODE_REM_LOOP         (3 << 14)
+#define                AT91_US_MSBF            (1 << 16)               /* Bit Order */
+#define                AT91_US_MODE9           (1 << 17)               /* 9-bit Character Length */
+#define                AT91_US_CLKO            (1 << 18)               /* Clock Output Select */
+#define                AT91_US_OVER            (1 << 19)               /* Oversampling Mode */
+#define                AT91_US_INACK           (1 << 20)               /* Inhibit Non Acknowledge */
+#define                AT91_US_DSNACK          (1 << 21)               /* Disable Successive NACK */
+#define                AT91_US_MAX_ITER        (7 << 24)               /* Max Iterations */
+#define                AT91_US_FILTER          (1 << 28)               /* Infrared Receive Line Filter */
+
+#define AT91_US_IER            0x08                    /* Interrupt Enable Register */
+#define                AT91_US_RXRDY           (1 <<  0)               /* Receiver Ready */
+#define                AT91_US_TXRDY           (1 <<  1)               /* Transmitter Ready */
+#define                AT91_US_RXBRK           (1 <<  2)               /* Break Received / End of Break */
+#define                AT91_US_ENDRX           (1 <<  3)               /* End of Receiver Transfer */
+#define                AT91_US_ENDTX           (1 <<  4)               /* End of Transmitter Transfer */
+#define                AT91_US_OVRE            (1 <<  5)               /* Overrun Error */
+#define                AT91_US_FRAME           (1 <<  6)               /* Framing Error */
+#define                AT91_US_PARE            (1 <<  7)               /* Parity Error */
+#define                AT91_US_TIMEOUT         (1 <<  8)               /* Receiver Time-out */
+#define                AT91_US_TXEMPTY         (1 <<  9)               /* Transmitter Empty */
+#define                AT91_US_ITERATION       (1 << 10)               /* Max number of Repetitions Reached */
+#define                AT91_US_TXBUFE          (1 << 11)               /* Transmission Buffer Empty */
+#define                AT91_US_RXBUFF          (1 << 12)               /* Reception Buffer Full */
+#define                AT91_US_NACK            (1 << 13)               /* Non Acknowledge */
+#define                AT91_US_RIIC            (1 << 16)               /* Ring Indicator Input Change */
+#define                AT91_US_DSRIC           (1 << 17)               /* Data Set Ready Input Change */
+#define                AT91_US_DCDIC           (1 << 18)               /* Data Carrier Detect Input Change */
+#define                AT91_US_CTSIC           (1 << 19)               /* Clear to Send Input Change */
+#define                AT91_US_RI              (1 << 20)               /* RI */
+#define                AT91_US_DSR             (1 << 21)               /* DSR */
+#define                AT91_US_DCD             (1 << 22)               /* DCD */
+#define                AT91_US_CTS             (1 << 23)               /* CTS */
+
+#define AT91_US_IDR            0x0c                    /* Interrupt Disable Register */
+#define AT91_US_IMR            0x10                    /* Interrupt Mask Register */
+#define AT91_US_CSR            0x14                    /* Channel Status Register */
+#define AT91_US_RHR            0x18                    /* Receiver Holding Register */
+#define AT91_US_THR            0x1c                    /* Transmitter Holding Register */
+
+#define AT91_US_BRGR           0x20                    /* Baud Rate Generator Register */
+#define                AT91_US_CD              (0xffff << 0)           /* Clock Divider */
+
+#define AT91_US_RTOR           0x24                    /* Receiver Time-out Register */
+#define                AT91_US_TO              (0xffff << 0)           /* Time-out Value */
+
+#define AT91_US_TTGR           0x28                    /* Transmitter Timeguard Register */
+#define                AT91_US_TG              (0xff << 0)             /* Timeguard Value */
+
+#define AT91_US_FIDI           0x40                    /* FI DI Ratio Register */
+#define AT91_US_NER            0x44                    /* Number of Errors Register */
+#define AT91_US_IF             0x4c                    /* IrDA Filter Register */
+
+#endif
diff --git a/include/asm-avr32/arch-at32ap/board.h b/include/asm-avr32/arch-at32ap/board.h
new file mode 100644 (file)
index 0000000..39368e1
--- /dev/null
@@ -0,0 +1,35 @@
+/*
+ * Platform data definitions.
+ */
+#ifndef __ASM_ARCH_BOARD_H
+#define __ASM_ARCH_BOARD_H
+
+#include <linux/types.h>
+
+/* Add basic devices: system manager, interrupt controller, portmuxes, etc. */
+void at32_add_system_devices(void);
+
+#define AT91_NR_UART   4
+extern struct platform_device *at91_default_console_device;
+
+struct platform_device *at32_add_device_usart(unsigned int id);
+
+struct eth_platform_data {
+       u8      valid;
+       u8      mii_phy_addr;
+       u8      is_rmii;
+       u8      hw_addr[6];
+};
+struct platform_device *
+at32_add_device_eth(unsigned int id, struct eth_platform_data *data);
+
+struct platform_device *at32_add_device_spi(unsigned int id);
+
+struct lcdc_platform_data {
+       unsigned long fbmem_start;
+       unsigned long fbmem_size;
+};
+struct platform_device *
+at32_add_device_lcdc(unsigned int id, struct lcdc_platform_data *data);
+
+#endif /* __ASM_ARCH_BOARD_H */
diff --git a/include/asm-avr32/arch-at32ap/init.h b/include/asm-avr32/arch-at32ap/init.h
new file mode 100644 (file)
index 0000000..4372263
--- /dev/null
@@ -0,0 +1,21 @@
+/*
+ * AT32AP platform initialization calls.
+ *
+ * Copyright (C) 2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef __ASM_AVR32_AT32AP_INIT_H__
+#define __ASM_AVR32_AT32AP_INIT_H__
+
+void setup_platform(void);
+
+/* Called by setup_platform */
+void at32_clock_init(void);
+void at32_portmux_init(void);
+
+void at32_setup_serial_console(unsigned int usart_id);
+
+#endif /* __ASM_AVR32_AT32AP_INIT_H__ */
diff --git a/include/asm-avr32/arch-at32ap/portmux.h b/include/asm-avr32/arch-at32ap/portmux.h
new file mode 100644 (file)
index 0000000..4d50421
--- /dev/null
@@ -0,0 +1,16 @@
+/*
+ * AT32 portmux interface.
+ *
+ * Copyright (C) 2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef __ASM_AVR32_AT32_PORTMUX_H__
+#define __ASM_AVR32_AT32_PORTMUX_H__
+
+void portmux_set_func(unsigned int portmux_id, unsigned int pin_id,
+                     unsigned int function_id);
+
+#endif /* __ASM_AVR32_AT32_PORTMUX_H__ */
diff --git a/include/asm-avr32/arch-at32ap/sm.h b/include/asm-avr32/arch-at32ap/sm.h
new file mode 100644 (file)
index 0000000..265a9ea
--- /dev/null
@@ -0,0 +1,27 @@
+/*
+ * AT32 System Manager interface.
+ *
+ * Copyright (C) 2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef __ASM_AVR32_AT32_SM_H__
+#define __ASM_AVR32_AT32_SM_H__
+
+struct irq_chip;
+struct platform_device;
+
+struct at32_sm {
+       spinlock_t lock;
+       void __iomem *regs;
+       struct irq_chip *eim_chip;
+       unsigned int eim_first_irq;
+       struct platform_device *pdev;
+};
+
+extern struct platform_device at32_sm_device;
+extern struct at32_sm system_manager;
+
+#endif /* __ASM_AVR32_AT32_SM_H__ */
diff --git a/include/asm-avr32/asm.h b/include/asm-avr32/asm.h
new file mode 100644 (file)
index 0000000..515c761
--- /dev/null
@@ -0,0 +1,102 @@
+/*
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef __ASM_AVR32_ASM_H__
+#define __ASM_AVR32_ASM_H__
+
+#include <asm/sysreg.h>
+#include <asm/asm-offsets.h>
+#include <asm/thread_info.h>
+
+#define mask_interrupts                ssrf    SR_GM_BIT
+#define mask_exceptions                ssrf    SR_EM_BIT
+#define unmask_interrupts      csrf    SR_GM_BIT
+#define unmask_exceptions      csrf    SR_EM_BIT
+
+#ifdef CONFIG_FRAME_POINTER
+       .macro  save_fp
+       st.w    --sp, r7
+       .endm
+       .macro  restore_fp
+       ld.w    r7, sp++
+       .endm
+       .macro  zero_fp
+       mov     r7, 0
+       .endm
+#else
+       .macro  save_fp
+       .endm
+       .macro  restore_fp
+       .endm
+       .macro  zero_fp
+       .endm
+#endif
+       .macro  get_thread_info reg
+       mov     \reg, sp
+       andl    \reg, ~(THREAD_SIZE - 1) & 0xffff
+       .endm
+
+       /* Save and restore registers */
+       .macro  save_min sr, tmp=lr
+       pushm   lr
+       mfsr    \tmp, \sr
+       zero_fp
+       st.w    --sp, \tmp
+       .endm
+
+       .macro  restore_min sr, tmp=lr
+       ld.w    \tmp, sp++
+       mtsr    \sr, \tmp
+       popm    lr
+       .endm
+
+       .macro  save_half sr, tmp=lr
+       save_fp
+       pushm   r8-r9,r10,r11,r12,lr
+       zero_fp
+       mfsr    \tmp, \sr
+       st.w    --sp, \tmp
+       .endm
+
+       .macro  restore_half sr, tmp=lr
+       ld.w    \tmp, sp++
+       mtsr    \sr, \tmp
+       popm    r8-r9,r10,r11,r12,lr
+       restore_fp
+       .endm
+
+       .macro  save_full_user sr, tmp=lr
+       stmts   --sp, r0,r1,r2,r3,r4,r5,r6,r7,r8,r9,r10,r11,r12,sp,lr
+       st.w    --sp, lr
+       zero_fp
+       mfsr    \tmp, \sr
+       st.w    --sp, \tmp
+       .endm
+
+       .macro  restore_full_user sr, tmp=lr
+       ld.w    \tmp, sp++
+       mtsr    \sr, \tmp
+       ld.w    lr, sp++
+       ldmts   sp++, r0,r1,r2,r3,r4,r5,r6,r7,r8,r9,r10,r11,r12,sp,lr
+       .endm
+
+       /* uaccess macros */
+       .macro branch_if_kernel scratch, label
+       get_thread_info \scratch
+       ld.w    \scratch, \scratch[TI_flags]
+       bld     \scratch, TIF_USERSPACE
+       brcc    \label
+       .endm
+
+       .macro ret_if_privileged scratch, addr, size, ret
+       sub     \scratch, \size, 1
+       add     \scratch, \addr
+       retcs   \ret
+       retmi   \ret
+       .endm
+
+#endif /* __ASM_AVR32_ASM_H__ */
diff --git a/include/asm-avr32/atomic.h b/include/asm-avr32/atomic.h
new file mode 100644 (file)
index 0000000..e0b9c44
--- /dev/null
@@ -0,0 +1,201 @@
+/*
+ * Atomic operations that C can't guarantee us.  Useful for
+ * resource counting etc.
+ *
+ * But use these as seldom as possible since they are slower than
+ * regular operations.
+ *
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef __ASM_AVR32_ATOMIC_H
+#define __ASM_AVR32_ATOMIC_H
+
+#include <asm/system.h>
+
+typedef struct { volatile int counter; } atomic_t;
+#define ATOMIC_INIT(i)  { (i) }
+
+#define atomic_read(v)         ((v)->counter)
+#define atomic_set(v, i)       (((v)->counter) = i)
+
+/*
+ * atomic_sub_return - subtract the atomic variable
+ * @i: integer value to subtract
+ * @v: pointer of type atomic_t
+ *
+ * Atomically subtracts @i from @v. Returns the resulting value.
+ */
+static inline int atomic_sub_return(int i, atomic_t *v)
+{
+       int result;
+
+       asm volatile(
+               "/* atomic_sub_return */\n"
+               "1:     ssrf    5\n"
+               "       ld.w    %0, %2\n"
+               "       sub     %0, %3\n"
+               "       stcond  %1, %0\n"
+               "       brne    1b"
+               : "=&r"(result), "=o"(v->counter)
+               : "m"(v->counter), "ir"(i)
+               : "cc");
+
+       return result;
+}
+
+/*
+ * atomic_add_return - add integer to atomic variable
+ * @i: integer value to add
+ * @v: pointer of type atomic_t
+ *
+ * Atomically adds @i to @v. Returns the resulting value.
+ */
+static inline int atomic_add_return(int i, atomic_t *v)
+{
+       int result;
+
+       if (__builtin_constant_p(i))
+               result = atomic_sub_return(-i, v);
+       else
+               asm volatile(
+                       "/* atomic_add_return */\n"
+                       "1:     ssrf    5\n"
+                       "       ld.w    %0, %1\n"
+                       "       add     %0, %3\n"
+                       "       stcond  %2, %0\n"
+                       "       brne    1b"
+                       : "=&r"(result), "=o"(v->counter)
+                       : "m"(v->counter), "r"(i)
+                       : "cc", "memory");
+
+       return result;
+}
+
+/*
+ * atomic_sub_unless - sub unless the number is a given value
+ * @v: pointer of type atomic_t
+ * @a: the amount to add to v...
+ * @u: ...unless v is equal to u.
+ *
+ * If the atomic value v is not equal to u, this function subtracts a
+ * from v, and returns non zero. If v is equal to u then it returns
+ * zero. This is done as an atomic operation.
+*/
+static inline int atomic_sub_unless(atomic_t *v, int a, int u)
+{
+       int tmp, result = 0;
+
+       asm volatile(
+               "/* atomic_sub_unless */\n"
+               "1:     ssrf    5\n"
+               "       ld.w    %0, %3\n"
+               "       cp.w    %0, %5\n"
+               "       breq    1f\n"
+               "       sub     %0, %4\n"
+               "       stcond  %2, %0\n"
+               "       brne    1b\n"
+               "       mov     %1, 1\n"
+               "1:"
+               : "=&r"(tmp), "=&r"(result), "=o"(v->counter)
+               : "m"(v->counter), "ir"(a), "ir"(u)
+               : "cc", "memory");
+
+       return result;
+}
+
+/*
+ * atomic_add_unless - add unless the number is a given value
+ * @v: pointer of type atomic_t
+ * @a: the amount to add to v...
+ * @u: ...unless v is equal to u.
+ *
+ * If the atomic value v is not equal to u, this function adds a to v,
+ * and returns non zero. If v is equal to u then it returns zero. This
+ * is done as an atomic operation.
+*/
+static inline int atomic_add_unless(atomic_t *v, int a, int u)
+{
+       int tmp, result;
+
+       if (__builtin_constant_p(a))
+               result = atomic_sub_unless(v, -a, u);
+       else {
+               result = 0;
+               asm volatile(
+                       "/* atomic_add_unless */\n"
+                       "1:     ssrf    5\n"
+                       "       ld.w    %0, %3\n"
+                       "       cp.w    %0, %5\n"
+                       "       breq    1f\n"
+                       "       add     %0, %4\n"
+                       "       stcond  %2, %0\n"
+                       "       brne    1b\n"
+                       "       mov     %1, 1\n"
+                       "1:"
+                       : "=&r"(tmp), "=&r"(result), "=o"(v->counter)
+                       : "m"(v->counter), "r"(a), "ir"(u)
+                       : "cc", "memory");
+       }
+
+       return result;
+}
+
+/*
+ * atomic_sub_if_positive - conditionally subtract integer from atomic variable
+ * @i: integer value to subtract
+ * @v: pointer of type atomic_t
+ *
+ * Atomically test @v and subtract @i if @v is greater or equal than @i.
+ * The function returns the old value of @v minus @i.
+ */
+static inline int atomic_sub_if_positive(int i, atomic_t *v)
+{
+       int result;
+
+       asm volatile(
+               "/* atomic_sub_if_positive */\n"
+               "1:     ssrf    5\n"
+               "       ld.w    %0, %2\n"
+               "       sub     %0, %3\n"
+               "       brlt    1f\n"
+               "       stcond  %1, %0\n"
+               "       brne    1b\n"
+               "1:"
+               : "=&r"(result), "=o"(v->counter)
+               : "m"(v->counter), "ir"(i)
+               : "cc", "memory");
+
+       return result;
+}
+
+#define atomic_xchg(v, new)    (xchg(&((v)->counter), new))
+#define atomic_cmpxchg(v, o, n)        ((int)cmpxchg(&((v)->counter), (o), (n)))
+
+#define atomic_sub(i, v)       (void)atomic_sub_return(i, v)
+#define atomic_add(i, v)       (void)atomic_add_return(i, v)
+#define atomic_dec(v)          atomic_sub(1, (v))
+#define atomic_inc(v)          atomic_add(1, (v))
+
+#define atomic_dec_return(v)   atomic_sub_return(1, v)
+#define atomic_inc_return(v)   atomic_add_return(1, v)
+
+#define atomic_sub_and_test(i, v) (atomic_sub_return(i, v) == 0)
+#define atomic_inc_and_test(v) (atomic_add_return(1, v) == 0)
+#define atomic_dec_and_test(v) (atomic_sub_return(1, v) == 0)
+#define atomic_add_negative(i, v) (atomic_add_return(i, v) < 0)
+
+#define atomic_inc_not_zero(v) atomic_add_unless(v, 1, 0)
+#define atomic_dec_if_positive(v) atomic_sub_if_positive(1, v)
+
+#define smp_mb__before_atomic_dec()    barrier()
+#define smp_mb__after_atomic_dec()     barrier()
+#define smp_mb__before_atomic_inc()    barrier()
+#define smp_mb__after_atomic_inc()     barrier()
+
+#include <asm-generic/atomic.h>
+
+#endif /*  __ASM_AVR32_ATOMIC_H */
diff --git a/include/asm-avr32/auxvec.h b/include/asm-avr32/auxvec.h
new file mode 100644 (file)
index 0000000..d5dd435
--- /dev/null
@@ -0,0 +1,4 @@
+#ifndef __ASM_AVR32_AUXVEC_H
+#define __ASM_AVR32_AUXVEC_H
+
+#endif /* __ASM_AVR32_AUXVEC_H */
diff --git a/include/asm-avr32/bitops.h b/include/asm-avr32/bitops.h
new file mode 100644 (file)
index 0000000..5299f8c
--- /dev/null
@@ -0,0 +1,296 @@
+/*
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef __ASM_AVR32_BITOPS_H
+#define __ASM_AVR32_BITOPS_H
+
+#include <asm/byteorder.h>
+#include <asm/system.h>
+
+/*
+ * clear_bit() doesn't provide any barrier for the compiler
+ */
+#define smp_mb__before_clear_bit()     barrier()
+#define smp_mb__after_clear_bit()      barrier()
+
+/*
+ * set_bit - Atomically set a bit in memory
+ * @nr: the bit to set
+ * @addr: the address to start counting from
+ *
+ * This function is atomic and may not be reordered.  See __set_bit()
+ * if you do not require the atomic guarantees.
+ *
+ * Note that @nr may be almost arbitrarily large; this function is not
+ * restricted to acting on a single-word quantity.
+ */
+static inline void set_bit(int nr, volatile void * addr)
+{
+       unsigned long *p = ((unsigned long *)addr) + nr / BITS_PER_LONG;
+       unsigned long tmp;
+
+       if (__builtin_constant_p(nr)) {
+               asm volatile(
+                       "1:     ssrf    5\n"
+                       "       ld.w    %0, %2\n"
+                       "       sbr     %0, %3\n"
+                       "       stcond  %1, %0\n"
+                       "       brne    1b"
+                       : "=&r"(tmp), "=o"(*p)
+                       : "m"(*p), "i"(nr)
+                       : "cc");
+       } else {
+               unsigned long mask = 1UL << (nr % BITS_PER_LONG);
+               asm volatile(
+                       "1:     ssrf    5\n"
+                       "       ld.w    %0, %2\n"
+                       "       or      %0, %3\n"
+                       "       stcond  %1, %0\n"
+                       "       brne    1b"
+                       : "=&r"(tmp), "=o"(*p)
+                       : "m"(*p), "r"(mask)
+                       : "cc");
+       }
+}
+
+/*
+ * clear_bit - Clears a bit in memory
+ * @nr: Bit to clear
+ * @addr: Address to start counting from
+ *
+ * clear_bit() is atomic and may not be reordered.  However, it does
+ * not contain a memory barrier, so if it is used for locking purposes,
+ * you should call smp_mb__before_clear_bit() and/or smp_mb__after_clear_bit()
+ * in order to ensure changes are visible on other processors.
+ */
+static inline void clear_bit(int nr, volatile void * addr)
+{
+       unsigned long *p = ((unsigned long *)addr) + nr / BITS_PER_LONG;
+       unsigned long tmp;
+
+       if (__builtin_constant_p(nr)) {
+               asm volatile(
+                       "1:     ssrf    5\n"
+                       "       ld.w    %0, %2\n"
+                       "       cbr     %0, %3\n"
+                       "       stcond  %1, %0\n"
+                       "       brne    1b"
+                       : "=&r"(tmp), "=o"(*p)
+                       : "m"(*p), "i"(nr)
+                       : "cc");
+       } else {
+               unsigned long mask = 1UL << (nr % BITS_PER_LONG);
+               asm volatile(
+                       "1:     ssrf    5\n"
+                       "       ld.w    %0, %2\n"
+                       "       andn    %0, %3\n"
+                       "       stcond  %1, %0\n"
+                       "       brne    1b"
+                       : "=&r"(tmp), "=o"(*p)
+                       : "m"(*p), "r"(mask)
+                       : "cc");
+       }
+}
+
+/*
+ * change_bit - Toggle a bit in memory
+ * @nr: Bit to change
+ * @addr: Address to start counting from
+ *
+ * change_bit() is atomic and may not be reordered.
+ * Note that @nr may be almost arbitrarily large; this function is not
+ * restricted to acting on a single-word quantity.
+ */
+static inline void change_bit(int nr, volatile void * addr)
+{
+       unsigned long *p = ((unsigned long *)addr) + nr / BITS_PER_LONG;
+       unsigned long mask = 1UL << (nr % BITS_PER_LONG);
+       unsigned long tmp;
+
+       asm volatile(
+               "1:     ssrf    5\n"
+               "       ld.w    %0, %2\n"
+               "       eor     %0, %3\n"
+               "       stcond  %1, %0\n"
+               "       brne    1b"
+               : "=&r"(tmp), "=o"(*p)
+               : "m"(*p), "r"(mask)
+               : "cc");
+}
+
+/*
+ * test_and_set_bit - Set a bit and return its old value
+ * @nr: Bit to set
+ * @addr: Address to count from
+ *
+ * This operation is atomic and cannot be reordered.
+ * It also implies a memory barrier.
+ */
+static inline int test_and_set_bit(int nr, volatile void * addr)
+{
+       unsigned long *p = ((unsigned long *)addr) + nr / BITS_PER_LONG;
+       unsigned long mask = 1UL << (nr % BITS_PER_LONG);
+       unsigned long tmp, old;
+
+       if (__builtin_constant_p(nr)) {
+               asm volatile(
+                       "1:     ssrf    5\n"
+                       "       ld.w    %0, %3\n"
+                       "       mov     %2, %0\n"
+                       "       sbr     %0, %4\n"
+                       "       stcond  %1, %0\n"
+                       "       brne    1b"
+                       : "=&r"(tmp), "=o"(*p), "=&r"(old)
+                       : "m"(*p), "i"(nr)
+                       : "memory", "cc");
+       } else {
+               asm volatile(
+                       "1:     ssrf    5\n"
+                       "       ld.w    %2, %3\n"
+                       "       or      %0, %2, %4\n"
+                       "       stcond  %1, %0\n"
+                       "       brne    1b"
+                       : "=&r"(tmp), "=o"(*p), "=&r"(old)
+                       : "m"(*p), "r"(mask)
+                       : "memory", "cc");
+       }
+
+       return (old & mask) != 0;
+}
+
+/*
+ * test_and_clear_bit - Clear a bit and return its old value
+ * @nr: Bit to clear
+ * @addr: Address to count from
+ *
+ * This operation is atomic and cannot be reordered.
+ * It also implies a memory barrier.
+ */
+static inline int test_and_clear_bit(int nr, volatile void * addr)
+{
+       unsigned long *p = ((unsigned long *)addr) + nr / BITS_PER_LONG;
+       unsigned long mask = 1UL << (nr % BITS_PER_LONG);
+       unsigned long tmp, old;
+
+       if (__builtin_constant_p(nr)) {
+               asm volatile(
+                       "1:     ssrf    5\n"
+                       "       ld.w    %0, %3\n"
+                       "       mov     %2, %0\n"
+                       "       cbr     %0, %4\n"
+                       "       stcond  %1, %0\n"
+                       "       brne    1b"
+                       : "=&r"(tmp), "=o"(*p), "=&r"(old)
+                       : "m"(*p), "i"(nr)
+                       : "memory", "cc");
+       } else {
+               asm volatile(
+                       "1:     ssrf    5\n"
+                       "       ld.w    %0, %3\n"
+                       "       mov     %2, %0\n"
+                       "       andn    %0, %4\n"
+                       "       stcond  %1, %0\n"
+                       "       brne    1b"
+                       : "=&r"(tmp), "=o"(*p), "=&r"(old)
+                       : "m"(*p), "r"(mask)
+                       : "memory", "cc");
+       }
+
+       return (old & mask) != 0;
+}
+
+/*
+ * test_and_change_bit - Change a bit and return its old value
+ * @nr: Bit to change
+ * @addr: Address to count from
+ *
+ * This operation is atomic and cannot be reordered.
+ * It also implies a memory barrier.
+ */
+static inline int test_and_change_bit(int nr, volatile void * addr)
+{
+       unsigned long *p = ((unsigned long *)addr) + nr / BITS_PER_LONG;
+       unsigned long mask = 1UL << (nr % BITS_PER_LONG);
+       unsigned long tmp, old;
+
+       asm volatile(
+               "1:     ssrf    5\n"
+               "       ld.w    %2, %3\n"
+               "       eor     %0, %2, %4\n"
+               "       stcond  %1, %0\n"
+               "       brne    1b"
+               : "=&r"(tmp), "=o"(*p), "=&r"(old)
+               : "m"(*p), "r"(mask)
+               : "memory", "cc");
+
+       return (old & mask) != 0;
+}
+
+#include <asm-generic/bitops/non-atomic.h>
+
+/* Find First bit Set */
+static inline unsigned long __ffs(unsigned long word)
+{
+       unsigned long result;
+
+       asm("brev %1\n\t"
+           "clz %0,%1"
+           : "=r"(result), "=&r"(word)
+           : "1"(word));
+       return result;
+}
+
+/* Find First Zero */
+static inline unsigned long ffz(unsigned long word)
+{
+       return __ffs(~word);
+}
+
+/* Find Last bit Set */
+static inline int fls(unsigned long word)
+{
+       unsigned long result;
+
+       asm("clz %0,%1" : "=r"(result) : "r"(word));
+       return 32 - result;
+}
+
+unsigned long find_first_zero_bit(const unsigned long *addr,
+                                 unsigned long size);
+unsigned long find_next_zero_bit(const unsigned long *addr,
+                                unsigned long size,
+                                unsigned long offset);
+unsigned long find_first_bit(const unsigned long *addr,
+                            unsigned long size);
+unsigned long find_next_bit(const unsigned long *addr,
+                                unsigned long size,
+                                unsigned long offset);
+
+/*
+ * ffs: find first bit set. This is defined the same way as
+ * the libc and compiler builtin ffs routines, therefore
+ * differs in spirit from the above ffz (man ffs).
+ *
+ * The difference is that bit numbering starts at 1, and if no bit is set,
+ * the function returns 0.
+ */
+static inline int ffs(unsigned long word)
+{
+       if(word == 0)
+               return 0;
+       return __ffs(word) + 1;
+}
+
+#include <asm-generic/bitops/fls64.h>
+#include <asm-generic/bitops/sched.h>
+#include <asm-generic/bitops/hweight.h>
+
+#include <asm-generic/bitops/ext2-non-atomic.h>
+#include <asm-generic/bitops/ext2-atomic.h>
+#include <asm-generic/bitops/minix-le.h>
+
+#endif /* __ASM_AVR32_BITOPS_H */
diff --git a/include/asm-avr32/bug.h b/include/asm-avr32/bug.h
new file mode 100644 (file)
index 0000000..521766b
--- /dev/null
@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef __ASM_AVR32_BUG_H
+#define __ASM_AVR32_BUG_H
+
+#ifdef CONFIG_BUG
+
+/*
+ * According to our Chief Architect, this compact opcode is very
+ * unlikely to ever be implemented.
+ */
+#define AVR32_BUG_OPCODE       0x5df0
+
+#ifdef CONFIG_DEBUG_BUGVERBOSE
+
+#define BUG()                                                          \
+       do {                                                            \
+               asm volatile(".hword    %0\n\t"                         \
+                            ".hword    %1\n\t"                         \
+                            ".long     %2"                             \
+                            :                                          \
+                            : "n"(AVR32_BUG_OPCODE),                   \
+                              "i"(__LINE__), "X"(__FILE__));           \
+       } while (0)
+
+#else
+
+#define BUG()                                                          \
+       do {                                                            \
+               asm volatile(".hword    %0\n\t"                         \
+                            : : "n"(AVR32_BUG_OPCODE));                \
+       } while (0)
+
+#endif /* CONFIG_DEBUG_BUGVERBOSE */
+
+#define HAVE_ARCH_BUG
+
+#endif /* CONFIG_BUG */
+
+#include <asm-generic/bug.h>
+
+#endif /* __ASM_AVR32_BUG_H */
diff --git a/include/asm-avr32/bugs.h b/include/asm-avr32/bugs.h
new file mode 100644 (file)
index 0000000..7635e77
--- /dev/null
@@ -0,0 +1,15 @@
+/*
+ * This is included by init/main.c to check for architecture-dependent bugs.
+ *
+ * Needs:
+ *      void check_bugs(void);
+ */
+#ifndef __ASM_AVR32_BUGS_H
+#define __ASM_AVR32_BUGS_H
+
+static void __init check_bugs(void)
+{
+       cpu_data->loops_per_jiffy = loops_per_jiffy;
+}
+
+#endif /* __ASM_AVR32_BUGS_H */
diff --git a/include/asm-avr32/byteorder.h b/include/asm-avr32/byteorder.h
new file mode 100644 (file)
index 0000000..402ff41
--- /dev/null
@@ -0,0 +1,25 @@
+/*
+ * AVR32 endian-conversion functions.
+ */
+#ifndef __ASM_AVR32_BYTEORDER_H
+#define __ASM_AVR32_BYTEORDER_H
+
+#include <asm/types.h>
+#include <linux/compiler.h>
+
+#ifdef __CHECKER__
+extern unsigned long __builtin_bswap_32(unsigned long x);
+extern unsigned short __builtin_bswap_16(unsigned short x);
+#endif
+
+#define __arch__swab32(x) __builtin_bswap_32(x)
+#define __arch__swab16(x) __builtin_bswap_16(x)
+
+#if !defined(__STRICT_ANSI__) || defined(__KERNEL__)
+# define __BYTEORDER_HAS_U64__
+# define __SWAB_64_THRU_32__
+#endif
+
+#include <linux/byteorder/big_endian.h>
+
+#endif /* __ASM_AVR32_BYTEORDER_H */
diff --git a/include/asm-avr32/cache.h b/include/asm-avr32/cache.h
new file mode 100644 (file)
index 0000000..dabb955
--- /dev/null
@@ -0,0 +1,29 @@
+#ifndef __ASM_AVR32_CACHE_H
+#define __ASM_AVR32_CACHE_H
+
+#define L1_CACHE_SHIFT 5
+#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
+
+#ifndef __ASSEMBLER__
+struct cache_info {
+       unsigned int ways;
+       unsigned int sets;
+       unsigned int linesz;
+};
+#endif /* __ASSEMBLER */
+
+/* Cache operation constants */
+#define ICACHE_FLUSH           0x00
+#define ICACHE_INVALIDATE      0x01
+#define ICACHE_LOCK            0x02
+#define ICACHE_UNLOCK          0x03
+#define ICACHE_PREFETCH                0x04
+
+#define DCACHE_FLUSH           0x08
+#define DCACHE_LOCK            0x09
+#define DCACHE_UNLOCK          0x0a
+#define DCACHE_INVALIDATE      0x0b
+#define DCACHE_CLEAN           0x0c
+#define DCACHE_CLEAN_INVAL     0x0d
+
+#endif /* __ASM_AVR32_CACHE_H */
diff --git a/include/asm-avr32/cachectl.h b/include/asm-avr32/cachectl.h
new file mode 100644 (file)
index 0000000..4faf1ce
--- /dev/null
@@ -0,0 +1,11 @@
+#ifndef __ASM_AVR32_CACHECTL_H
+#define __ASM_AVR32_CACHECTL_H
+
+/*
+ * Operations that can be performed through the cacheflush system call
+ */
+
+/* Clean the data cache, then invalidate the icache */
+#define CACHE_IFLUSH   0
+
+#endif /* __ASM_AVR32_CACHECTL_H */
diff --git a/include/asm-avr32/cacheflush.h b/include/asm-avr32/cacheflush.h
new file mode 100644 (file)
index 0000000..f1bf170
--- /dev/null
@@ -0,0 +1,129 @@
+/*
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef __ASM_AVR32_CACHEFLUSH_H
+#define __ASM_AVR32_CACHEFLUSH_H
+
+/* Keep includes the same across arches.  */
+#include <linux/mm.h>
+
+#define CACHE_OP_ICACHE_INVALIDATE     0x01
+#define CACHE_OP_DCACHE_INVALIDATE     0x0b
+#define CACHE_OP_DCACHE_CLEAN          0x0c
+#define CACHE_OP_DCACHE_CLEAN_INVAL    0x0d
+
+/*
+ * Invalidate any cacheline containing virtual address vaddr without
+ * writing anything back to memory.
+ *
+ * Note that this function may corrupt unrelated data structures when
+ * applied on buffers that are not cacheline aligned in both ends.
+ */
+static inline void invalidate_dcache_line(void *vaddr)
+{
+       asm volatile("cache %0[0], %1"
+                    :
+                    : "r"(vaddr), "n"(CACHE_OP_DCACHE_INVALIDATE)
+                    : "memory");
+}
+
+/*
+ * Make sure any cacheline containing virtual address vaddr is written
+ * to memory.
+ */
+static inline void clean_dcache_line(void *vaddr)
+{
+       asm volatile("cache %0[0], %1"
+                    :
+                    : "r"(vaddr), "n"(CACHE_OP_DCACHE_CLEAN)
+                    : "memory");
+}
+
+/*
+ * Make sure any cacheline containing virtual address vaddr is written
+ * to memory and then invalidate it.
+ */
+static inline void flush_dcache_line(void *vaddr)
+{
+       asm volatile("cache %0[0], %1"
+                    :
+                    : "r"(vaddr), "n"(CACHE_OP_DCACHE_CLEAN_INVAL)
+                    : "memory");
+}
+
+/*
+ * Invalidate any instruction cacheline containing virtual address
+ * vaddr.
+ */
+static inline void invalidate_icache_line(void *vaddr)
+{
+       asm volatile("cache %0[0], %1"
+                    :
+                    : "r"(vaddr), "n"(CACHE_OP_ICACHE_INVALIDATE)
+                    : "memory");
+}
+
+/*
+ * Applies the above functions on all lines that are touched by the
+ * specified virtual address range.
+ */
+void invalidate_dcache_region(void *start, size_t len);
+void clean_dcache_region(void *start, size_t len);
+void flush_dcache_region(void *start, size_t len);
+void invalidate_icache_region(void *start, size_t len);
+
+/*
+ * Make sure any pending writes are completed before continuing.
+ */
+#define flush_write_buffer() asm volatile("sync 0" : : : "memory")
+
+/*
+ * The following functions are called when a virtual mapping changes.
+ * We do not need to flush anything in this case.
+ */
+#define flush_cache_all()                      do { } while (0)
+#define flush_cache_mm(mm)                     do { } while (0)
+#define flush_cache_range(vma, start, end)     do { } while (0)
+#define flush_cache_page(vma, vmaddr, pfn)     do { } while (0)
+#define flush_cache_vmap(start, end)           do { } while (0)
+#define flush_cache_vunmap(start, end)         do { } while (0)
+
+/*
+ * I think we need to implement this one to be able to reliably
+ * execute pages from RAMDISK. However, if we implement the
+ * flush_dcache_*() functions, it might not be needed anymore.
+ *
+ * #define flush_icache_page(vma, page)                do { } while (0)
+ */
+extern void flush_icache_page(struct vm_area_struct *vma, struct page *page);
+
+/*
+ * These are (I think) related to D-cache aliasing.  We might need to
+ * do something here, but only for certain configurations.  No such
+ * configurations exist at this time.
+ */
+#define flush_dcache_page(page)                        do { } while (0)
+#define flush_dcache_mmap_lock(page)           do { } while (0)
+#define flush_dcache_mmap_unlock(page)         do { } while (0)
+
+/*
+ * These are for I/D cache coherency. In this case, we do need to
+ * flush with all configurations.
+ */
+extern void flush_icache_range(unsigned long start, unsigned long end);
+extern void flush_icache_user_range(struct vm_area_struct *vma,
+                                   struct page *page,
+                                   unsigned long addr, int len);
+
+#define copy_to_user_page(vma, page, vaddr, dst, src, len) do {        \
+       memcpy(dst, src, len);                                  \
+       flush_icache_user_range(vma, page, vaddr, len);         \
+} while(0)
+#define copy_from_user_page(vma, page, vaddr, dst, src, len)   \
+       memcpy(dst, src, len)
+
+#endif /* __ASM_AVR32_CACHEFLUSH_H */
diff --git a/include/asm-avr32/checksum.h b/include/asm-avr32/checksum.h
new file mode 100644 (file)
index 0000000..41b7af0
--- /dev/null
@@ -0,0 +1,156 @@
+/*
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef __ASM_AVR32_CHECKSUM_H
+#define __ASM_AVR32_CHECKSUM_H
+
+/*
+ * computes the checksum of a memory block at buff, length len,
+ * and adds in "sum" (32-bit)
+ *
+ * returns a 32-bit number suitable for feeding into itself
+ * or csum_tcpudp_magic
+ *
+ * this function must be called with even lengths, except
+ * for the last fragment, which may be odd
+ *
+ * it's best to have buff aligned on a 32-bit boundary
+ */
+unsigned int csum_partial(const unsigned char * buff, int len,
+                         unsigned int sum);
+
+/*
+ * the same as csum_partial, but copies from src while it
+ * checksums, and handles user-space pointer exceptions correctly, when needed.
+ *
+ * here even more important to align src and dst on a 32-bit (or even
+ * better 64-bit) boundary
+ */
+unsigned int csum_partial_copy_generic(const char *src, char *dst, int len,
+                                      int sum, int *src_err_ptr,
+                                      int *dst_err_ptr);
+
+/*
+ *     Note: when you get a NULL pointer exception here this means someone
+ *     passed in an incorrect kernel address to one of these functions.
+ *
+ *     If you use these functions directly please don't forget the
+ *     verify_area().
+ */
+static inline
+unsigned int csum_partial_copy_nocheck(const char *src, char *dst,
+                                      int len, int sum)
+{
+       return csum_partial_copy_generic(src, dst, len, sum, NULL, NULL);
+}
+
+static inline
+unsigned int csum_partial_copy_from_user (const char __user *src, char *dst,
+                                         int len, int sum, int *err_ptr)
+{
+       return csum_partial_copy_generic((const char __force *)src, dst, len,
+                                        sum, err_ptr, NULL);
+}
+
+/*
+ *     This is a version of ip_compute_csum() optimized for IP headers,
+ *     which always checksum on 4 octet boundaries.
+ */
+static inline unsigned short ip_fast_csum(unsigned char *iph,
+                                         unsigned int ihl)
+{
+       unsigned int sum, tmp;
+
+       __asm__ __volatile__(
+               "       ld.w    %0, %1++\n"
+               "       ld.w    %3, %1++\n"
+               "       sub     %2, 4\n"
+               "       add     %0, %3\n"
+               "       ld.w    %3, %1++\n"
+               "       adc     %0, %0, %3\n"
+               "       ld.w    %3, %1++\n"
+               "       adc     %0, %0, %3\n"
+               "       acr     %0\n"
+               "1:     ld.w    %3, %1++\n"
+               "       add     %0, %3\n"
+               "       acr     %0\n"
+               "       sub     %2, 1\n"
+               "       brne    1b\n"
+               "       lsl     %3, %0, 16\n"
+               "       andl    %0, 0\n"
+               "       mov     %2, 0xffff\n"
+               "       add     %0, %3\n"
+               "       adc     %0, %0, %2\n"
+               "       com     %0\n"
+               "       lsr     %0, 16\n"
+               : "=r"(sum), "=r"(iph), "=r"(ihl), "=r"(tmp)
+               : "1"(iph), "2"(ihl)
+               : "memory", "cc");
+       return sum;
+}
+
+/*
+ *     Fold a partial checksum
+ */
+
+static inline unsigned int csum_fold(unsigned int sum)
+{
+       unsigned int tmp;
+
+       asm("   bfextu  %1, %0, 0, 16\n"
+           "   lsr     %0, 16\n"
+           "   add     %0, %1\n"
+           "   bfextu  %1, %0, 16, 16\n"
+           "   add     %0, %1"
+           : "=&r"(sum), "=&r"(tmp)
+           : "0"(sum));
+
+       return ~sum;
+}
+
+static inline unsigned long csum_tcpudp_nofold(unsigned long saddr,
+                                              unsigned long daddr,
+                                              unsigned short len,
+                                              unsigned short proto,
+                                              unsigned int sum)
+{
+       asm("   add     %0, %1\n"
+           "   adc     %0, %0, %2\n"
+           "   adc     %0, %0, %3\n"
+           "   acr     %0"
+           : "=r"(sum)
+           : "r"(daddr), "r"(saddr), "r"(ntohs(len) | (proto << 16)),
+             "0"(sum)
+           : "cc");
+
+       return sum;
+}
+
+/*
+ * computes the checksum of the TCP/UDP pseudo-header
+ * returns a 16-bit checksum, already complemented
+ */
+static inline unsigned short int csum_tcpudp_magic(unsigned long saddr,
+                                                  unsigned long daddr,
+                                                  unsigned short len,
+                                                  unsigned short proto,
+                                                  unsigned int sum)
+{
+       return csum_fold(csum_tcpudp_nofold(saddr,daddr,len,proto,sum));
+}
+
+/*
+ * this routine is used for miscellaneous IP-like checksums, mainly
+ * in icmp.c
+ */
+
+static inline unsigned short ip_compute_csum(unsigned char * buff, int len)
+{
+    return csum_fold(csum_partial(buff, len, 0));
+}
+
+#endif /* __ASM_AVR32_CHECKSUM_H */
diff --git a/include/asm-avr32/cputime.h b/include/asm-avr32/cputime.h
new file mode 100644 (file)
index 0000000..e87e0f8
--- /dev/null
@@ -0,0 +1,6 @@
+#ifndef __ASM_AVR32_CPUTIME_H
+#define __ASM_AVR32_CPUTIME_H
+
+#include <asm-generic/cputime.h>
+
+#endif /* __ASM_AVR32_CPUTIME_H */
diff --git a/include/asm-avr32/current.h b/include/asm-avr32/current.h
new file mode 100644 (file)
index 0000000..c7b0549
--- /dev/null
@@ -0,0 +1,15 @@
+#ifndef __ASM_AVR32_CURRENT_H
+#define __ASM_AVR32_CURRENT_H
+
+#include <linux/thread_info.h>
+
+struct task_struct;
+
+inline static struct task_struct * get_current(void)
+{
+       return current_thread_info()->task;
+}
+
+#define current get_current()
+
+#endif /* __ASM_AVR32_CURRENT_H */
diff --git a/include/asm-avr32/delay.h b/include/asm-avr32/delay.h
new file mode 100644 (file)
index 0000000..cc3b2e3
--- /dev/null
@@ -0,0 +1,26 @@
+#ifndef __ASM_AVR32_DELAY_H
+#define __ASM_AVR32_DELAY_H
+
+/*
+ * Copyright (C) 1993 Linus Torvalds
+ *
+ * Delay routines calling functions in arch/avr32/lib/delay.c
+ */
+
+extern void __bad_udelay(void);
+extern void __bad_ndelay(void);
+
+extern void __udelay(unsigned long usecs);
+extern void __ndelay(unsigned long nsecs);
+extern void __const_udelay(unsigned long usecs);
+extern void __delay(unsigned long loops);
+
+#define udelay(n) (__builtin_constant_p(n) ? \
+       ((n) > 20000 ? __bad_udelay() : __const_udelay((n) * 0x10c6ul)) : \
+       __udelay(n))
+
+#define ndelay(n) (__builtin_constant_p(n) ? \
+       ((n) > 20000 ? __bad_ndelay() : __const_udelay((n) * 5ul)) : \
+       __ndelay(n))
+
+#endif /* __ASM_AVR32_DELAY_H */
diff --git a/include/asm-avr32/div64.h b/include/asm-avr32/div64.h
new file mode 100644 (file)
index 0000000..d7ddd4f
--- /dev/null
@@ -0,0 +1,6 @@
+#ifndef __ASM_AVR32_DIV64_H
+#define __ASM_AVR32_DIV64_H
+
+#include <asm-generic/div64.h>
+
+#endif /* __ASM_AVR32_DIV64_H */
diff --git a/include/asm-avr32/dma-mapping.h b/include/asm-avr32/dma-mapping.h
new file mode 100644 (file)
index 0000000..4c40cb4
--- /dev/null
@@ -0,0 +1,320 @@
+#ifndef __ASM_AVR32_DMA_MAPPING_H
+#define __ASM_AVR32_DMA_MAPPING_H
+
+#include <linux/mm.h>
+#include <linux/device.h>
+#include <asm/scatterlist.h>
+#include <asm/processor.h>
+#include <asm/cacheflush.h>
+#include <asm/io.h>
+
+extern void dma_cache_sync(void *vaddr, size_t size, int direction);
+
+/*
+ * Return whether the given device DMA address mask can be supported
+ * properly.  For example, if your device can only drive the low 24-bits
+ * during bus mastering, then you would pass 0x00ffffff as the mask
+ * to this function.
+ */
+static inline int dma_supported(struct device *dev, u64 mask)
+{
+       /* Fix when needed. I really don't know of any limitations */
+       return 1;
+}
+
+static inline int dma_set_mask(struct device *dev, u64 dma_mask)
+{
+       if (!dev->dma_mask || !dma_supported(dev, dma_mask))
+               return -EIO;
+
+       *dev->dma_mask = dma_mask;
+       return 0;
+}
+
+/**
+ * dma_alloc_coherent - allocate consistent memory for DMA
+ * @dev: valid struct device pointer, or NULL for ISA and EISA-like devices
+ * @size: required memory size
+ * @handle: bus-specific DMA address
+ *
+ * Allocate some uncached, unbuffered memory for a device for
+ * performing DMA.  This function allocates pages, and will
+ * return the CPU-viewed address, and sets @handle to be the
+ * device-viewed address.
+ */
+extern void *dma_alloc_coherent(struct device *dev, size_t size,
+                               dma_addr_t *handle, gfp_t gfp);
+
+/**
+ * dma_free_coherent - free memory allocated by dma_alloc_coherent
+ * @dev: valid struct device pointer, or NULL for ISA and EISA-like devices
+ * @size: size of memory originally requested in dma_alloc_coherent
+ * @cpu_addr: CPU-view address returned from dma_alloc_coherent
+ * @handle: device-view address returned from dma_alloc_coherent
+ *
+ * Free (and unmap) a DMA buffer previously allocated by
+ * dma_alloc_coherent().
+ *
+ * References to memory and mappings associated with cpu_addr/handle
+ * during and after this call executing are illegal.
+ */
+extern void dma_free_coherent(struct device *dev, size_t size,
+                             void *cpu_addr, dma_addr_t handle);
+
+/**
+ * dma_alloc_writecombine - allocate write-combining memory for DMA
+ * @dev: valid struct device pointer, or NULL for ISA and EISA-like devices
+ * @size: required memory size
+ * @handle: bus-specific DMA address
+ *
+ * Allocate some uncached, buffered memory for a device for
+ * performing DMA.  This function allocates pages, and will
+ * return the CPU-viewed address, and sets @handle to be the
+ * device-viewed address.
+ */
+extern void *dma_alloc_writecombine(struct device *dev, size_t size,
+                                   dma_addr_t *handle, gfp_t gfp);
+
+/**
+ * dma_free_coherent - free memory allocated by dma_alloc_writecombine
+ * @dev: valid struct device pointer, or NULL for ISA and EISA-like devices
+ * @size: size of memory originally requested in dma_alloc_writecombine
+ * @cpu_addr: CPU-view address returned from dma_alloc_writecombine
+ * @handle: device-view address returned from dma_alloc_writecombine
+ *
+ * Free (and unmap) a DMA buffer previously allocated by
+ * dma_alloc_writecombine().
+ *
+ * References to memory and mappings associated with cpu_addr/handle
+ * during and after this call executing are illegal.
+ */
+extern void dma_free_writecombine(struct device *dev, size_t size,
+                                 void *cpu_addr, dma_addr_t handle);
+
+/**
+ * dma_map_single - map a single buffer for streaming DMA
+ * @dev: valid struct device pointer, or NULL for ISA and EISA-like devices
+ * @cpu_addr: CPU direct mapped address of buffer
+ * @size: size of buffer to map
+ * @dir: DMA transfer direction
+ *
+ * Ensure that any data held in the cache is appropriately discarded
+ * or written back.
+ *
+ * The device owns this memory once this call has completed.  The CPU
+ * can regain ownership by calling dma_unmap_single() or dma_sync_single().
+ */
+static inline dma_addr_t
+dma_map_single(struct device *dev, void *cpu_addr, size_t size,
+              enum dma_data_direction direction)
+{
+       dma_cache_sync(cpu_addr, size, direction);
+       return virt_to_bus(cpu_addr);
+}
+
+/**
+ * dma_unmap_single - unmap a single buffer previously mapped
+ * @dev: valid struct device pointer, or NULL for ISA and EISA-like devices
+ * @handle: DMA address of buffer
+ * @size: size of buffer to map
+ * @dir: DMA transfer direction
+ *
+ * Unmap a single streaming mode DMA translation.  The handle and size
+ * must match what was provided in the previous dma_map_single() call.
+ * All other usages are undefined.
+ *
+ * After this call, reads by the CPU to the buffer are guaranteed to see
+ * whatever the device wrote there.
+ */
+static inline void
+dma_unmap_single(struct device *dev, dma_addr_t dma_addr, size_t size,
+                enum dma_data_direction direction)
+{
+
+}
+
+/**
+ * dma_map_page - map a portion of a page for streaming DMA
+ * @dev: valid struct device pointer, or NULL for ISA and EISA-like devices
+ * @page: page that buffer resides in
+ * @offset: offset into page for start of buffer
+ * @size: size of buffer to map
+ * @dir: DMA transfer direction
+ *
+ * Ensure that any data held in the cache is appropriately discarded
+ * or written back.
+ *
+ * The device owns this memory once this call has completed.  The CPU
+ * can regain ownership by calling dma_unmap_page() or dma_sync_single().
+ */
+static inline dma_addr_t
+dma_map_page(struct device *dev, struct page *page,
+            unsigned long offset, size_t size,
+            enum dma_data_direction direction)
+{
+       return dma_map_single(dev, page_address(page) + offset,
+                             size, direction);
+}
+
+/**
+ * dma_unmap_page - unmap a buffer previously mapped through dma_map_page()
+ * @dev: valid struct device pointer, or NULL for ISA and EISA-like devices
+ * @handle: DMA address of buffer
+ * @size: size of buffer to map
+ * @dir: DMA transfer direction
+ *
+ * Unmap a single streaming mode DMA translation.  The handle and size
+ * must match what was provided in the previous dma_map_single() call.
+ * All other usages are undefined.
+ *
+ * After this call, reads by the CPU to the buffer are guaranteed to see
+ * whatever the device wrote there.
+ */
+static inline void
+dma_unmap_page(struct device *dev, dma_addr_t dma_address, size_t size,
+              enum dma_data_direction direction)
+{
+       dma_unmap_single(dev, dma_address, size, direction);
+}
+
+/**
+ * dma_map_sg - map a set of SG buffers for streaming mode DMA
+ * @dev: valid struct device pointer, or NULL for ISA and EISA-like devices
+ * @sg: list of buffers
+ * @nents: number of buffers to map
+ * @dir: DMA transfer direction
+ *
+ * Map a set of buffers described by scatterlist in streaming
+ * mode for DMA.  This is the scatter-gather version of the
+ * above pci_map_single interface.  Here the scatter gather list
+ * elements are each tagged with the appropriate dma address
+ * and length.  They are obtained via sg_dma_{address,length}(SG).
+ *
+ * NOTE: An implementation may be able to use a smaller number of
+ *       DMA address/length pairs than there are SG table elements.
+ *       (for example via virtual mapping capabilities)
+ *       The routine returns the number of addr/length pairs actually
+ *       used, at most nents.
+ *
+ * Device ownership issues as mentioned above for pci_map_single are
+ * the same here.
+ */
+static inline int
+dma_map_sg(struct device *dev, struct scatterlist *sg, int nents,
+          enum dma_data_direction direction)
+{
+       int i;
+
+       for (i = 0; i < nents; i++) {
+               char *virt;
+
+               sg[i].dma_address = page_to_bus(sg[i].page) + sg[i].offset;
+               virt = page_address(sg[i].page) + sg[i].offset;
+               dma_cache_sync(virt, sg[i].length, direction);
+       }
+
+       return nents;
+}
+
+/**
+ * dma_unmap_sg - unmap a set of SG buffers mapped by dma_map_sg
+ * @dev: valid struct device pointer, or NULL for ISA and EISA-like devices
+ * @sg: list of buffers
+ * @nents: number of buffers to map
+ * @dir: DMA transfer direction
+ *
+ * Unmap a set of streaming mode DMA translations.
+ * Again, CPU read rules concerning calls here are the same as for
+ * pci_unmap_single() above.
+ */
+static inline void
+dma_unmap_sg(struct device *dev, struct scatterlist *sg, int nhwentries,
+            enum dma_data_direction direction)
+{
+
+}
+
+/**
+ * dma_sync_single_for_cpu
+ * @dev: valid struct device pointer, or NULL for ISA and EISA-like devices
+ * @handle: DMA address of buffer
+ * @size: size of buffer to map
+ * @dir: DMA transfer direction
+ *
+ * Make physical memory consistent for a single streaming mode DMA
+ * translation after a transfer.
+ *
+ * If you perform a dma_map_single() but wish to interrogate the
+ * buffer using the cpu, yet do not wish to teardown the DMA mapping,
+ * you must call this function before doing so.  At the next point you
+ * give the DMA address back to the card, you must first perform a
+ * dma_sync_single_for_device, and then the device again owns the
+ * buffer.
+ */
+static inline void
+dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle,
+                       size_t size, enum dma_data_direction direction)
+{
+       dma_cache_sync(bus_to_virt(dma_handle), size, direction);
+}
+
+static inline void
+dma_sync_single_for_device(struct device *dev, dma_addr_t dma_handle,
+                          size_t size, enum dma_data_direction direction)
+{
+       dma_cache_sync(bus_to_virt(dma_handle), size, direction);
+}
+
+/**
+ * dma_sync_sg_for_cpu
+ * @dev: valid struct device pointer, or NULL for ISA and EISA-like devices
+ * @sg: list of buffers
+ * @nents: number of buffers to map
+ * @dir: DMA transfer direction
+ *
+ * Make physical memory consistent for a set of streaming
+ * mode DMA translations after a transfer.
+ *
+ * The same as dma_sync_single_for_* but for a scatter-gather list,
+ * same rules and usage.
+ */
+static inline void
+dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg,
+                   int nents, enum dma_data_direction direction)
+{
+       int i;
+
+       for (i = 0; i < nents; i++) {
+               dma_cache_sync(page_address(sg[i].page) + sg[i].offset,
+                              sg[i].length, direction);
+       }
+}
+
+static inline void
+dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg,
+                      int nents, enum dma_data_direction direction)
+{
+       int i;
+
+       for (i = 0; i < nents; i++) {
+               dma_cache_sync(page_address(sg[i].page) + sg[i].offset,
+                              sg[i].length, direction);
+       }
+}
+
+/* Now for the API extensions over the pci_ one */
+
+#define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f)
+#define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h)
+
+static inline int dma_is_consistent(dma_addr_t dma_addr)
+{
+       return 1;
+}
+
+static inline int dma_get_cache_alignment(void)
+{
+       return boot_cpu_data.dcache.linesz;
+}
+
+#endif /* __ASM_AVR32_DMA_MAPPING_H */
diff --git a/include/asm-avr32/dma.h b/include/asm-avr32/dma.h
new file mode 100644 (file)
index 0000000..9e91205
--- /dev/null
@@ -0,0 +1,8 @@
+#ifndef __ASM_AVR32_DMA_H
+#define __ASM_AVR32_DMA_H
+
+/* The maximum address that we can perform a DMA transfer to on this platform.
+ * Not really applicable to AVR32, but some functions need it. */
+#define MAX_DMA_ADDRESS                0xffffffff
+
+#endif /* __ASM_AVR32_DMA_H */
diff --git a/include/asm-avr32/elf.h b/include/asm-avr32/elf.h
new file mode 100644 (file)
index 0000000..d334b49
--- /dev/null
@@ -0,0 +1,110 @@
+#ifndef __ASM_AVR32_ELF_H
+#define __ASM_AVR32_ELF_H
+
+/* AVR32 relocation numbers */
+#define R_AVR32_NONE           0
+#define R_AVR32_32             1
+#define R_AVR32_16             2
+#define R_AVR32_8              3
+#define R_AVR32_32_PCREL       4
+#define R_AVR32_16_PCREL       5
+#define R_AVR32_8_PCREL                6
+#define R_AVR32_DIFF32         7
+#define R_AVR32_DIFF16         8
+#define R_AVR32_DIFF8          9
+#define R_AVR32_GOT32          10
+#define R_AVR32_GOT16          11
+#define R_AVR32_GOT8           12
+#define R_AVR32_21S            13
+#define R_AVR32_16U            14
+#define R_AVR32_16S            15
+#define R_AVR32_8S             16
+#define R_AVR32_8S_EXT         17
+#define R_AVR32_22H_PCREL      18
+#define R_AVR32_18W_PCREL      19
+#define R_AVR32_16B_PCREL      20
+#define R_AVR32_16N_PCREL      21
+#define R_AVR32_14UW_PCREL     22
+#define R_AVR32_11H_PCREL      23
+#define R_AVR32_10UW_PCREL     24
+#define R_AVR32_9H_PCREL       25
+#define R_AVR32_9UW_PCREL      26
+#define R_AVR32_HI16           27
+#define R_AVR32_LO16           28
+#define R_AVR32_GOTPC          29
+#define R_AVR32_GOTCALL                30
+#define R_AVR32_LDA_GOT                31
+#define R_AVR32_GOT21S         32
+#define R_AVR32_GOT18SW                33
+#define R_AVR32_GOT16S         34
+#define R_AVR32_GOT7UW         35
+#define R_AVR32_32_CPENT       36
+#define R_AVR32_CPCALL         37
+#define R_AVR32_16_CP          38
+#define R_AVR32_9W_CP          39
+#define R_AVR32_RELATIVE       40
+#define R_AVR32_GLOB_DAT       41
+#define R_AVR32_JMP_SLOT       42
+#define R_AVR32_ALIGN          43
+
+/*
+ * ELF register definitions..
+ */
+
+#include <asm/ptrace.h>
+#include <asm/user.h>
+
+typedef unsigned long elf_greg_t;
+
+#define ELF_NGREG (sizeof (struct pt_regs) / sizeof (elf_greg_t))
+typedef elf_greg_t elf_gregset_t[ELF_NGREG];
+
+typedef struct user_fpu_struct elf_fpregset_t;
+
+/*
+ * This is used to ensure we don't load something for the wrong architecture.
+ */
+#define elf_check_arch(x) ( (x)->e_machine == EM_AVR32 )
+
+/*
+ * These are used to set parameters in the core dumps.
+ */
+#define ELF_CLASS      ELFCLASS32
+#ifdef __LITTLE_ENDIAN__
+#define ELF_DATA       ELFDATA2LSB
+#else
+#define ELF_DATA       ELFDATA2MSB
+#endif
+#define ELF_ARCH       EM_AVR32
+
+#define USE_ELF_CORE_DUMP
+#define ELF_EXEC_PAGESIZE      4096
+
+/* This is the location that an ET_DYN program is loaded if exec'ed.  Typical
+   use of this is to invoke "./ld.so someprog" to test out a new version of
+   the loader.  We need to make sure that it is out of the way of the program
+   that it will "exec", and that there is sufficient room for the brk.  */
+
+#define ELF_ET_DYN_BASE         (2 * TASK_SIZE / 3)
+
+
+/* This yields a mask that user programs can use to figure out what
+   instruction set this CPU supports.  This could be done in user space,
+   but it's not easy, and we've already done it here.  */
+
+#define ELF_HWCAP      (0)
+
+/* This yields a string that ld.so will use to load implementation
+   specific libraries for optimization.  This is more specific in
+   intent than poking at uname or /proc/cpuinfo.
+
+   For the moment, we have only optimizations for the Intel generations,
+   but that could change... */
+
+#define ELF_PLATFORM  (NULL)
+
+#ifdef __KERNEL__
+#define SET_PERSONALITY(ex, ibcs2) set_personality(PER_LINUX_32BIT)
+#endif
+
+#endif /* __ASM_AVR32_ELF_H */
diff --git a/include/asm-avr32/emergency-restart.h b/include/asm-avr32/emergency-restart.h
new file mode 100644 (file)
index 0000000..3e7e014
--- /dev/null
@@ -0,0 +1,6 @@
+#ifndef __ASM_AVR32_EMERGENCY_RESTART_H
+#define __ASM_AVR32_EMERGENCY_RESTART_H
+
+#include <asm-generic/emergency-restart.h>
+
+#endif /* __ASM_AVR32_EMERGENCY_RESTART_H */
diff --git a/include/asm-avr32/errno.h b/include/asm-avr32/errno.h
new file mode 100644 (file)
index 0000000..558a724
--- /dev/null
@@ -0,0 +1,6 @@
+#ifndef __ASM_AVR32_ERRNO_H
+#define __ASM_AVR32_ERRNO_H
+
+#include <asm-generic/errno.h>
+
+#endif /* __ASM_AVR32_ERRNO_H */
diff --git a/include/asm-avr32/fcntl.h b/include/asm-avr32/fcntl.h
new file mode 100644 (file)
index 0000000..14c0c44
--- /dev/null
@@ -0,0 +1,6 @@
+#ifndef __ASM_AVR32_FCNTL_H
+#define __ASM_AVR32_FCNTL_H
+
+#include <asm-generic/fcntl.h>
+
+#endif /* __ASM_AVR32_FCNTL_H */
diff --git a/include/asm-avr32/futex.h b/include/asm-avr32/futex.h
new file mode 100644 (file)
index 0000000..10419f1
--- /dev/null
@@ -0,0 +1,6 @@
+#ifndef __ASM_AVR32_FUTEX_H
+#define __ASM_AVR32_FUTEX_H
+
+#include <asm-generic/futex.h>
+
+#endif /* __ASM_AVR32_FUTEX_H */
diff --git a/include/asm-avr32/hardirq.h b/include/asm-avr32/hardirq.h
new file mode 100644 (file)
index 0000000..2673543
--- /dev/null
@@ -0,0 +1,34 @@
+#ifndef __ASM_AVR32_HARDIRQ_H
+#define __ASM_AVR32_HARDIRQ_H
+
+#include <linux/threads.h>
+#include <asm/irq.h>
+
+#ifndef __ASSEMBLY__
+
+#include <linux/cache.h>
+
+/* entry.S is sensitive to the offsets of these fields */
+typedef struct {
+       unsigned int __softirq_pending;
+} ____cacheline_aligned irq_cpustat_t;
+
+void ack_bad_irq(unsigned int irq);
+
+/* Standard mappings for irq_cpustat_t above */
+#include <linux/irq_cpustat.h>
+
+#endif /* __ASSEMBLY__ */
+
+#define HARDIRQ_BITS   12
+
+/*
+ * The hardirq mask has to be large enough to have
+ * space for potentially all IRQ sources in the system
+ * nesting on a single CPU:
+ */
+#if (1 << HARDIRQ_BITS) < NR_IRQS
+# error HARDIRQ_BITS is too low!
+#endif
+
+#endif /* __ASM_AVR32_HARDIRQ_H */
diff --git a/include/asm-avr32/hw_irq.h b/include/asm-avr32/hw_irq.h
new file mode 100644 (file)
index 0000000..218b0a6
--- /dev/null
@@ -0,0 +1,9 @@
+#ifndef __ASM_AVR32_HW_IRQ_H
+#define __ASM_AVR32_HW_IRQ_H
+
+static inline void hw_resend_irq(struct hw_interrupt_type *h, unsigned int i)
+{
+       /* Nothing to do */
+}
+
+#endif /* __ASM_AVR32_HW_IRQ_H */
diff --git a/include/asm-avr32/intc.h b/include/asm-avr32/intc.h
new file mode 100644 (file)
index 0000000..1ac9ca7
--- /dev/null
@@ -0,0 +1,128 @@
+#ifndef __ASM_AVR32_INTC_H
+#define __ASM_AVR32_INTC_H
+
+#include <linux/sysdev.h>
+#include <linux/interrupt.h>
+
+struct irq_controller;
+struct irqaction;
+struct pt_regs;
+
+struct platform_device;
+
+/* Information about the internal interrupt controller */
+struct intc_device {
+       /* ioremapped address of configuration block */
+       void __iomem *regs;
+
+       /* the physical device */
+       struct platform_device *pdev;
+
+       /* Number of interrupt lines per group. */
+       unsigned int irqs_per_group;
+
+       /* The highest group ID + 1 */
+       unsigned int nr_groups;
+
+       /*
+        * Bitfield indicating which groups are actually in use.  The
+        * size of the array is
+        * ceil(group_max / (8 * sizeof(unsigned int))).
+        */
+       unsigned int group_mask[];
+};
+
+struct irq_controller_class {
+       /*
+        * A short name identifying this kind of controller.
+        */
+       const char *typename;
+       /*
+        * Handle the IRQ.  Must do any necessary acking and masking.
+        */
+       irqreturn_t (*handle)(int irq, void *dev_id, struct pt_regs *regs);
+       /*
+        * Register a new IRQ handler.
+        */
+       int (*setup)(struct irq_controller *ctrl, unsigned int irq,
+                    struct irqaction *action);
+       /*
+        * Unregister a IRQ handler.
+        */
+       void (*free)(struct irq_controller *ctrl, unsigned int irq,
+                    void *dev_id);
+       /*
+        * Mask the IRQ in the interrupt controller.
+        */
+       void (*mask)(struct irq_controller *ctrl, unsigned int irq);
+       /*
+        * Unmask the IRQ in the interrupt controller.
+        */
+       void (*unmask)(struct irq_controller *ctrl, unsigned int irq);
+       /*
+        * Set the type of the IRQ. See below for possible types.
+        * Return -EINVAL if a given type is not supported
+        */
+       int (*set_type)(struct irq_controller *ctrl, unsigned int irq,
+                       unsigned int type);
+       /*
+        * Return the IRQ type currently set
+        */
+       unsigned int (*get_type)(struct irq_controller *ctrl, unsigned int irq);
+};
+
+struct irq_controller {
+       struct irq_controller_class *class;
+       unsigned int irq_group;
+       unsigned int first_irq;
+       unsigned int nr_irqs;
+       struct list_head list;
+};
+
+struct intc_group_desc {
+       struct irq_controller *ctrl;
+       irqreturn_t (*handle)(int, void *, struct pt_regs *);
+       unsigned long flags;
+       void *dev_id;
+       const char *devname;
+};
+
+/*
+ * The internal interrupt controller.  Defined in board/part-specific
+ * devices.c.
+ * TODO: Should probably be defined per-cpu.
+ */
+extern struct intc_device intc;
+
+extern int request_internal_irq(unsigned int irq,
+                               irqreturn_t (*handler)(int, void *, struct pt_regs *),
+                               unsigned long irqflags,
+                               const char *devname, void *dev_id);
+extern void free_internal_irq(unsigned int irq);
+
+/* Only used by time_init() */
+extern int setup_internal_irq(unsigned int irq, struct intc_group_desc *desc);
+
+/*
+ * Set interrupt priority for a given group. `group' can be found by
+ * using irq_to_group(irq). Priority can be from 0 (lowest) to 3
+ * (highest). Higher-priority interrupts will preempt lower-priority
+ * interrupts (unless interrupts are masked globally).
+ *
+ * This function does not check for conflicts within a group.
+ */
+extern int intc_set_priority(unsigned int group,
+                            unsigned int priority);
+
+/*
+ * Returns a bitmask of pending interrupts in a group.
+ */
+extern unsigned long intc_get_pending(unsigned int group);
+
+/*
+ * Register a new external interrupt controller.  Returns the first
+ * external IRQ number that is assigned to the new controller.
+ */
+extern int intc_register_controller(struct irq_controller *ctrl);
+
+#endif /* __ASM_AVR32_INTC_H */
diff --git a/include/asm-avr32/io.h b/include/asm-avr32/io.h
new file mode 100644 (file)
index 0000000..2fc8f11
--- /dev/null
@@ -0,0 +1,253 @@
+#ifndef __ASM_AVR32_IO_H
+#define __ASM_AVR32_IO_H
+
+#include <linux/string.h>
+
+#ifdef __KERNEL__
+
+#include <asm/addrspace.h>
+#include <asm/byteorder.h>
+
+/* virt_to_phys will only work when address is in P1 or P2 */
+static __inline__ unsigned long virt_to_phys(volatile void *address)
+{
+       return PHYSADDR(address);
+}
+
+static __inline__ void * phys_to_virt(unsigned long address)
+{
+       return (void *)P1SEGADDR(address);
+}
+
+#define cached_to_phys(addr)   ((unsigned long)PHYSADDR(addr))
+#define uncached_to_phys(addr) ((unsigned long)PHYSADDR(addr))
+#define phys_to_cached(addr)   ((void *)P1SEGADDR(addr))
+#define phys_to_uncached(addr) ((void *)P2SEGADDR(addr))
+
+/*
+ * Generic IO read/write.  These perform native-endian accesses.  Note
+ * that some architectures will want to re-define __raw_{read,write}w.
+ */
+extern void __raw_writesb(unsigned int addr, const void *data, int bytelen);
+extern void __raw_writesw(unsigned int addr, const void *data, int wordlen);
+extern void __raw_writesl(unsigned int addr, const void *data, int longlen);
+
+extern void __raw_readsb(unsigned int addr, void *data, int bytelen);
+extern void __raw_readsw(unsigned int addr, void *data, int wordlen);
+extern void __raw_readsl(unsigned int addr, void *data, int longlen);
+
+static inline void writeb(unsigned char b, volatile void __iomem *addr)
+{
+       *(volatile unsigned char __force *)addr = b;
+}
+static inline void writew(unsigned short b, volatile void __iomem *addr)
+{
+       *(volatile unsigned short __force *)addr = b;
+}
+static inline void writel(unsigned int b, volatile void __iomem *addr)
+{
+       *(volatile unsigned int __force *)addr = b;
+}
+#define __raw_writeb writeb
+#define __raw_writew writew
+#define __raw_writel writel
+
+static inline unsigned char readb(const volatile void __iomem *addr)
+{
+       return *(const volatile unsigned char __force *)addr;
+}
+static inline unsigned short readw(const volatile void __iomem *addr)
+{
+       return *(const volatile unsigned short __force *)addr;
+}
+static inline unsigned int readl(const volatile void __iomem *addr)
+{
+       return *(const volatile unsigned int __force *)addr;
+}
+#define __raw_readb readb
+#define __raw_readw readw
+#define __raw_readl readl
+
+#define writesb(p, d, l)       __raw_writesb((unsigned int)p, d, l)
+#define writesw(p, d, l)       __raw_writesw((unsigned int)p, d, l)
+#define writesl(p, d, l)       __raw_writesl((unsigned int)p, d, l)
+
+#define readsb(p, d, l)                __raw_readsb((unsigned int)p, d, l)
+#define readsw(p, d, l)                __raw_readsw((unsigned int)p, d, l)
+#define readsl(p, d, l)                __raw_readsl((unsigned int)p, d, l)
+
+/*
+ * These two are only here because ALSA _thinks_ it needs them...
+ */
+static inline void memcpy_fromio(void * to, const volatile void __iomem *from,
+                                unsigned long count)
+{
+       char *p = to;
+       while (count) {
+               count--;
+               *p = readb(from);
+               p++;
+               from++;
+       }
+}
+
+static inline void  memcpy_toio(volatile void __iomem *to, const void * from,
+                               unsigned long count)
+{
+       const char *p = from;
+       while (count) {
+               count--;
+               writeb(*p, to);
+               p++;
+               to++;
+       }
+}
+
+static inline void memset_io(volatile void __iomem *addr, unsigned char val,
+                            unsigned long count)
+{
+       memset((void __force *)addr, val, count);
+}
+
+/*
+ * Bad read/write accesses...
+ */
+extern void __readwrite_bug(const char *fn);
+
+#define IO_SPACE_LIMIT 0xffffffff
+
+/* Convert I/O port address to virtual address */
+#define __io(p)                ((void __iomem *)phys_to_uncached(p))
+
+/*
+ *  IO port access primitives
+ *  -------------------------
+ *
+ * The AVR32 doesn't have special IO access instructions; all IO is memory
+ * mapped. Note that these are defined to perform little endian accesses
+ * only. Their primary purpose is to access PCI and ISA peripherals.
+ *
+ * Note that for a big endian machine, this implies that the following
+ * big endian mode connectivity is in place.
+ *
+ * The machine specific io.h include defines __io to translate an "IO"
+ * address to a memory address.
+ *
+ * Note that we prevent GCC re-ordering or caching values in expressions
+ * by introducing sequence points into the in*() definitions.  Note that
+ * __raw_* do not guarantee this behaviour.
+ *
+ * The {in,out}[bwl] macros are for emulating x86-style PCI/ISA IO space.
+ */
+#define outb(v, p)             __raw_writeb(v, __io(p))
+#define outw(v, p)             __raw_writew(cpu_to_le16(v), __io(p))
+#define outl(v, p)             __raw_writel(cpu_to_le32(v), __io(p))
+
+#define inb(p)                 __raw_readb(__io(p))
+#define inw(p)                 le16_to_cpu(__raw_readw(__io(p)))
+#define inl(p)                 le32_to_cpu(__raw_readl(__io(p)))
+
+static inline void __outsb(unsigned long port, void *addr, unsigned int count)
+{
+       while (count--) {
+               outb(*(u8 *)addr, port);
+               addr++;
+       }
+}
+
+static inline void __insb(unsigned long port, void *addr, unsigned int count)
+{
+       while (count--) {
+               *(u8 *)addr = inb(port);
+               addr++;
+       }
+}
+
+static inline void __outsw(unsigned long port, void *addr, unsigned int count)
+{
+       while (count--) {
+               outw(*(u16 *)addr, port);
+               addr += 2;
+       }
+}
+
+static inline void __insw(unsigned long port, void *addr, unsigned int count)
+{
+       while (count--) {
+               *(u16 *)addr = inw(port);
+               addr += 2;
+       }
+}
+
+static inline void __outsl(unsigned long port, void *addr, unsigned int count)
+{
+       while (count--) {
+               outl(*(u32 *)addr, port);
+               addr += 4;
+       }
+}
+
+static inline void __insl(unsigned long port, void *addr, unsigned int count)
+{
+       while (count--) {
+               *(u32 *)addr = inl(port);
+               addr += 4;
+       }
+}
+
+#define outsb(port, addr, count)       __outsb(port, addr, count)
+#define insb(port, addr, count)                __insb(port, addr, count)
+#define outsw(port, addr, count)       __outsw(port, addr, count)
+#define insw(port, addr, count)                __insw(port, addr, count)
+#define outsl(port, addr, count)       __outsl(port, addr, count)
+#define insl(port, addr, count)                __insl(port, addr, count)
+
+extern void __iomem *__ioremap(unsigned long offset, size_t size,
+                              unsigned long flags);
+extern void __iounmap(void __iomem *addr);
+
+/*
+ * ioremap     -   map bus memory into CPU space
+ * @offset     bus address of the memory
+ * @size       size of the resource to map
+ *
+ * ioremap performs a platform specific sequence of operations to make
+ * bus memory CPU accessible via the readb/.../writel functions and
+ * the other mmio helpers. The returned address is not guaranteed to
+ * be usable directly as a virtual address.
+ */
+#define ioremap(offset, size)                  \
+       __ioremap((offset), (size), 0)
+
+#define iounmap(addr)                          \
+       __iounmap(addr)
+
+#define cached(addr) P1SEGADDR(addr)
+#define uncached(addr) P2SEGADDR(addr)
+
+#define virt_to_bus virt_to_phys
+#define bus_to_virt phys_to_virt
+#define page_to_bus page_to_phys
+#define bus_to_page phys_to_page
+
+#define dma_cache_wback_inv(_start, _size)     \
+       flush_dcache_region(_start, _size)
+#define dma_cache_inv(_start, _size)           \
+       invalidate_dcache_region(_start, _size)
+#define dma_cache_wback(_start, _size)         \
+       clean_dcache_region(_start, _size)
+
+/*
+ * Convert a physical pointer to a virtual kernel pointer for /dev/mem
+ * access
+ */
+#define xlate_dev_mem_ptr(p)    __va(p)
+
+/*
+ * Convert a virtual cached pointer to an uncached pointer
+ */
+#define xlate_dev_kmem_ptr(p)   p
+
+#endif /* __KERNEL__ */
+
+#endif /* __ASM_AVR32_IO_H */
diff --git a/include/asm-avr32/ioctl.h b/include/asm-avr32/ioctl.h
new file mode 100644 (file)
index 0000000..c8472c1
--- /dev/null
@@ -0,0 +1,6 @@
+#ifndef __ASM_AVR32_IOCTL_H
+#define __ASM_AVR32_IOCTL_H
+
+#include <asm-generic/ioctl.h>
+
+#endif /* __ASM_AVR32_IOCTL_H */
diff --git a/include/asm-avr32/ioctls.h b/include/asm-avr32/ioctls.h
new file mode 100644 (file)
index 0000000..0500426
--- /dev/null
@@ -0,0 +1,83 @@
+#ifndef __ASM_AVR32_IOCTLS_H
+#define __ASM_AVR32_IOCTLS_H
+
+#include <asm/ioctl.h>
+
+/* 0x54 is just a magic number to make these relatively unique ('T') */
+
+#define TCGETS         0x5401
+#define TCSETS         0x5402 /* Clashes with SNDCTL_TMR_START sound ioctl */
+#define TCSETSW                0x5403
+#define TCSETSF                0x5404
+#define TCGETA         0x5405
+#define TCSETA         0x5406
+#define TCSETAW                0x5407
+#define TCSETAF                0x5408
+#define TCSBRK         0x5409
+#define TCXONC         0x540A
+#define TCFLSH         0x540B
+#define TIOCEXCL       0x540C
+#define TIOCNXCL       0x540D
+#define TIOCSCTTY      0x540E
+#define TIOCGPGRP      0x540F
+#define TIOCSPGRP      0x5410
+#define TIOCOUTQ       0x5411
+#define TIOCSTI                0x5412
+#define TIOCGWINSZ     0x5413
+#define TIOCSWINSZ     0x5414
+#define TIOCMGET       0x5415
+#define TIOCMBIS       0x5416
+#define TIOCMBIC       0x5417
+#define TIOCMSET       0x5418
+#define TIOCGSOFTCAR   0x5419
+#define TIOCSSOFTCAR   0x541A
+#define FIONREAD       0x541B
+#define TIOCINQ                FIONREAD
+#define TIOCLINUX      0x541C
+#define TIOCCONS       0x541D
+#define TIOCGSERIAL    0x541E
+#define TIOCSSERIAL    0x541F
+#define TIOCPKT                0x5420
+#define FIONBIO                0x5421
+#define TIOCNOTTY      0x5422
+#define TIOCSETD       0x5423
+#define TIOCGETD       0x5424
+#define TCSBRKP                0x5425  /* Needed for POSIX tcsendbreak() */
+/* #define TIOCTTYGSTRUCT 0x5426 - Former debugging-only ioctl */
+#define TIOCSBRK       0x5427  /* BSD compatibility */
+#define TIOCCBRK       0x5428  /* BSD compatibility */
+#define TIOCGSID       0x5429  /* Return the session ID of FD */
+#define TIOCGPTN       _IOR('T',0x30, unsigned int) /* Get Pty Number (of pty-mux device) */
+#define TIOCSPTLCK     _IOW('T',0x31, int)  /* Lock/unlock Pty */
+
+#define FIONCLEX       0x5450
+#define FIOCLEX                0x5451
+#define FIOASYNC       0x5452
+#define TIOCSERCONFIG  0x5453
+#define TIOCSERGWILD   0x5454
+#define TIOCSERSWILD   0x5455
+#define TIOCGLCKTRMIOS 0x5456
+#define TIOCSLCKTRMIOS 0x5457
+#define TIOCSERGSTRUCT 0x5458 /* For debugging only */
+#define TIOCSERGETLSR   0x5459 /* Get line status register */
+#define TIOCSERGETMULTI 0x545A /* Get multiport config  */
+#define TIOCSERSETMULTI 0x545B /* Set multiport config */
+
+#define TIOCMIWAIT     0x545C  /* wait for a change on serial input line(s) */
+#define TIOCGICOUNT    0x545D  /* read serial port inline interrupt counts */
+#define TIOCGHAYESESP   0x545E  /* Get Hayes ESP configuration */
+#define TIOCSHAYESESP   0x545F  /* Set Hayes ESP configuration */
+#define FIOQSIZE       0x5460
+
+/* Used for packet mode */
+#define TIOCPKT_DATA            0
+#define TIOCPKT_FLUSHREAD       1
+#define TIOCPKT_FLUSHWRITE      2
+#define TIOCPKT_STOP            4
+#define TIOCPKT_START           8
+#define TIOCPKT_NOSTOP         16
+#define TIOCPKT_DOSTOP         32
+
+#define TIOCSER_TEMT    0x01   /* Transmitter physically empty */
+
+#endif /* __ASM_AVR32_IOCTLS_H */
diff --git a/include/asm-avr32/ipcbuf.h b/include/asm-avr32/ipcbuf.h
new file mode 100644 (file)
index 0000000..1552c96
--- /dev/null
@@ -0,0 +1,29 @@
+#ifndef __ASM_AVR32_IPCBUF_H
+#define __ASM_AVR32_IPCBUF_H
+
+/*
+* The user_ipc_perm structure for AVR32 architecture.
+* Note extra padding because this structure is passed back and forth
+* between kernel and user space.
+*
+* Pad space is left for:
+* - 32-bit mode_t and seq
+* - 2 miscellaneous 32-bit values
+*/
+
+struct ipc64_perm
+{
+        __kernel_key_t          key;
+        __kernel_uid32_t        uid;
+        __kernel_gid32_t        gid;
+        __kernel_uid32_t        cuid;
+        __kernel_gid32_t        cgid;
+        __kernel_mode_t         mode;
+        unsigned short          __pad1;
+        unsigned short          seq;
+        unsigned short          __pad2;
+        unsigned long           __unused1;
+        unsigned long           __unused2;
+};
+
+#endif /* __ASM_AVR32_IPCBUF_H */
diff --git a/include/asm-avr32/irq.h b/include/asm-avr32/irq.h
new file mode 100644 (file)
index 0000000..f7e7257
--- /dev/null
@@ -0,0 +1,10 @@
+#ifndef __ASM_AVR32_IRQ_H
+#define __ASM_AVR32_IRQ_H
+
+#define NR_INTERNAL_IRQS       64
+#define NR_EXTERNAL_IRQS       64
+#define NR_IRQS                        (NR_INTERNAL_IRQS + NR_EXTERNAL_IRQS)
+
+#define irq_canonicalize(i)    (i)
+
+#endif /* __ASM_AVR32_IOCTLS_H */
diff --git a/include/asm-avr32/irqflags.h b/include/asm-avr32/irqflags.h
new file mode 100644 (file)
index 0000000..93570da
--- /dev/null
@@ -0,0 +1,68 @@
+/*
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef __ASM_AVR32_IRQFLAGS_H
+#define __ASM_AVR32_IRQFLAGS_H
+
+#include <asm/sysreg.h>
+
+static inline unsigned long __raw_local_save_flags(void)
+{
+       return sysreg_read(SR);
+}
+
+#define raw_local_save_flags(x)                                        \
+       do { (x) = __raw_local_save_flags(); } while (0)
+
+/*
+ * This will restore ALL status register flags, not only the interrupt
+ * mask flag.
+ *
+ * The empty asm statement informs the compiler of this fact while
+ * also serving as a barrier.
+ */
+static inline void raw_local_irq_restore(unsigned long flags)
+{
+       sysreg_write(SR, flags);
+       asm volatile("" : : : "memory", "cc");
+}
+
+static inline void raw_local_irq_disable(void)
+{
+       asm volatile("ssrf %0" : : "n"(SYSREG_GM_OFFSET) : "memory");
+}
+
+static inline void raw_local_irq_enable(void)
+{
+       asm volatile("csrf %0" : : "n"(SYSREG_GM_OFFSET) : "memory");
+}
+
+static inline int raw_irqs_disabled_flags(unsigned long flags)
+{
+       return (flags & SYSREG_BIT(GM)) != 0;
+}
+
+static inline int raw_irqs_disabled(void)
+{
+       unsigned long flags = __raw_local_save_flags();
+
+       return raw_irqs_disabled_flags(flags);
+}
+
+static inline unsigned long __raw_local_irq_save(void)
+{
+       unsigned long flags = __raw_local_save_flags();
+
+       raw_local_irq_disable();
+
+       return flags;
+}
+
+#define raw_local_irq_save(flags)                              \
+       do { (flags) = __raw_local_irq_save(); } while (0)
+
+#endif /* __ASM_AVR32_IRQFLAGS_H */
diff --git a/include/asm-avr32/kdebug.h b/include/asm-avr32/kdebug.h
new file mode 100644 (file)
index 0000000..f583b64
--- /dev/null
@@ -0,0 +1,38 @@
+#ifndef __ASM_AVR32_KDEBUG_H
+#define __ASM_AVR32_KDEBUG_H
+
+#include <linux/notifier.h>
+
+struct pt_regs;
+
+struct die_args {
+       struct pt_regs *regs;
+       int trapnr;
+};
+
+int register_die_notifier(struct notifier_block *nb);
+int unregister_die_notifier(struct notifier_block *nb);
+int register_page_fault_notifier(struct notifier_block *nb);
+int unregister_page_fault_notifier(struct notifier_block *nb);
+extern struct atomic_notifier_head avr32_die_chain;
+
+/* Grossly misnamed. */
+enum die_val {
+       DIE_FAULT,
+       DIE_BREAKPOINT,
+       DIE_SSTEP,
+       DIE_PAGE_FAULT,
+};
+
+static inline int notify_die(enum die_val val, struct pt_regs *regs,
+                            int trap, int sig)
+{
+       struct die_args args = {
+               .regs = regs,
+               .trapnr = trap,
+       };
+
+       return atomic_notifier_call_chain(&avr32_die_chain, val, &args);
+}
+
+#endif /* __ASM_AVR32_KDEBUG_H */
diff --git a/include/asm-avr32/kmap_types.h b/include/asm-avr32/kmap_types.h
new file mode 100644 (file)
index 0000000..b7f5c68
--- /dev/null
@@ -0,0 +1,30 @@
+#ifndef __ASM_AVR32_KMAP_TYPES_H
+#define __ASM_AVR32_KMAP_TYPES_H
+
+#ifdef CONFIG_DEBUG_HIGHMEM
+# define D(n) __KM_FENCE_##n ,
+#else
+# define D(n)
+#endif
+
+enum km_type {
+D(0)   KM_BOUNCE_READ,
+D(1)   KM_SKB_SUNRPC_DATA,
+D(2)   KM_SKB_DATA_SOFTIRQ,
+D(3)   KM_USER0,
+D(4)   KM_USER1,
+D(5)   KM_BIO_SRC_IRQ,
+D(6)   KM_BIO_DST_IRQ,
+D(7)   KM_PTE0,
+D(8)   KM_PTE1,
+D(9)   KM_PTE2,
+D(10)  KM_IRQ0,
+D(11)  KM_IRQ1,
+D(12)  KM_SOFTIRQ0,
+D(13)  KM_SOFTIRQ1,
+D(14)  KM_TYPE_NR
+};
+
+#undef D
+
+#endif /* __ASM_AVR32_KMAP_TYPES_H */
diff --git a/include/asm-avr32/kprobes.h b/include/asm-avr32/kprobes.h
new file mode 100644 (file)
index 0000000..09a5cbe
--- /dev/null
@@ -0,0 +1,34 @@
+/*
+ * Kernel Probes (KProbes)
+ *
+ * Copyright (C) 2005-2006 Atmel Corporation
+ * Copyright (C) IBM Corporation, 2002, 2004
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef __ASM_AVR32_KPROBES_H
+#define __ASM_AVR32_KPROBES_H
+
+#include <linux/types.h>
+
+typedef u16    kprobe_opcode_t;
+#define BREAKPOINT_INSTRUCTION 0xd673  /* breakpoint */
+#define MAX_INSN_SIZE          2
+
+#define ARCH_INACTIVE_KPROBE_COUNT 1
+
+#define arch_remove_kprobe(p)  do { } while (0)
+
+/* Architecture specific copy of original instruction */
+struct arch_specific_insn {
+       kprobe_opcode_t insn[MAX_INSN_SIZE];
+};
+
+extern int kprobe_exceptions_notify(struct notifier_block *self,
+                                   unsigned long val, void *data);
+
+#define flush_insn_slot(p)     do { } while (0)
+
+#endif /* __ASM_AVR32_KPROBES_H */
diff --git a/include/asm-avr32/linkage.h b/include/asm-avr32/linkage.h
new file mode 100644 (file)
index 0000000..f7b285e
--- /dev/null
@@ -0,0 +1,7 @@
+#ifndef __ASM_LINKAGE_H
+#define __ASM_LINKAGE_H
+
+#define __ALIGN .balign 2
+#define __ALIGN_STR ".balign 2"
+
+#endif /* __ASM_LINKAGE_H */
diff --git a/include/asm-avr32/local.h b/include/asm-avr32/local.h
new file mode 100644 (file)
index 0000000..1c16196
--- /dev/null
@@ -0,0 +1,6 @@
+#ifndef __ASM_AVR32_LOCAL_H
+#define __ASM_AVR32_LOCAL_H
+
+#include <asm-generic/local.h>
+
+#endif /* __ASM_AVR32_LOCAL_H */
diff --git a/include/asm-avr32/mach/serial_at91.h b/include/asm-avr32/mach/serial_at91.h
new file mode 100644 (file)
index 0000000..1290bb3
--- /dev/null
@@ -0,0 +1,33 @@
+/*
+ *  linux/include/asm-arm/mach/serial_at91.h
+ *
+ *  Based on serial_sa1100.h  by Nicolas Pitre
+ *
+ *  Copyright (C) 2002 ATMEL Rousset
+ *
+ *  Low level machine dependent UART functions.
+ */
+
+struct uart_port;
+
+/*
+ * This is a temporary structure for registering these
+ * functions; it is intended to be discarded after boot.
+ */
+struct at91_port_fns {
+       void    (*set_mctrl)(struct uart_port *, u_int);
+       u_int   (*get_mctrl)(struct uart_port *);
+       void    (*enable_ms)(struct uart_port *);
+       void    (*pm)(struct uart_port *, u_int, u_int);
+       int     (*set_wake)(struct uart_port *, u_int);
+       int     (*open)(struct uart_port *);
+       void    (*close)(struct uart_port *);
+};
+
+#if defined(CONFIG_SERIAL_AT91)
+void at91_register_uart_fns(struct at91_port_fns *fns);
+#else
+#define at91_register_uart_fns(fns) do { } while (0)
+#endif
+
+
diff --git a/include/asm-avr32/mman.h b/include/asm-avr32/mman.h
new file mode 100644 (file)
index 0000000..648f91e
--- /dev/null
@@ -0,0 +1,17 @@
+#ifndef __ASM_AVR32_MMAN_H__
+#define __ASM_AVR32_MMAN_H__
+
+#include <asm-generic/mman.h>
+
+#define MAP_GROWSDOWN  0x0100          /* stack-like segment */
+#define MAP_DENYWRITE  0x0800          /* ETXTBSY */
+#define MAP_EXECUTABLE 0x1000          /* mark it as an executable */
+#define MAP_LOCKED     0x2000          /* pages are locked */
+#define MAP_NORESERVE  0x4000          /* don't check for reservations */
+#define MAP_POPULATE   0x8000          /* populate (prefault) page tables */
+#define MAP_NONBLOCK   0x10000         /* do not block on IO */
+
+#define MCL_CURRENT    1               /* lock all current mappings */
+#define MCL_FUTURE     2               /* lock all future mappings */
+
+#endif /* __ASM_AVR32_MMAN_H__ */
diff --git a/include/asm-avr32/mmu.h b/include/asm-avr32/mmu.h
new file mode 100644 (file)
index 0000000..60c2d26
--- /dev/null
@@ -0,0 +1,10 @@
+#ifndef __ASM_AVR32_MMU_H
+#define __ASM_AVR32_MMU_H
+
+/* Default "unsigned long" context */
+typedef unsigned long mm_context_t;
+
+#define MMU_ITLB_ENTRIES       64
+#define MMU_DTLB_ENTRIES       64
+
+#endif /* __ASM_AVR32_MMU_H */
diff --git a/include/asm-avr32/mmu_context.h b/include/asm-avr32/mmu_context.h
new file mode 100644 (file)
index 0000000..31add1a
--- /dev/null
@@ -0,0 +1,148 @@
+/*
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * ASID handling taken from SH implementation.
+ *   Copyright (C) 1999 Niibe Yutaka
+ *   Copyright (C) 2003 Paul Mundt
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef __ASM_AVR32_MMU_CONTEXT_H
+#define __ASM_AVR32_MMU_CONTEXT_H
+
+#include <asm/tlbflush.h>
+#include <asm/pgalloc.h>
+#include <asm/sysreg.h>
+
+/*
+ * The MMU "context" consists of two things:
+ *    (a) TLB cache version
+ *    (b) ASID (Address Space IDentifier)
+ */
+#define MMU_CONTEXT_ASID_MASK          0x000000ff
+#define MMU_CONTEXT_VERSION_MASK       0xffffff00
+#define MMU_CONTEXT_FIRST_VERSION       0x00000100
+#define NO_CONTEXT                     0
+
+#define MMU_NO_ASID                    0x100
+
+/* Virtual Page Number mask */
+#define MMU_VPN_MASK   0xfffff000
+
+/* Cache of MMU context last used */
+extern unsigned long mmu_context_cache;
+
+/*
+ * Get MMU context if needed
+ */
+static inline void
+get_mmu_context(struct mm_struct *mm)
+{
+       unsigned long mc = mmu_context_cache;
+
+       if (((mm->context ^ mc) & MMU_CONTEXT_VERSION_MASK) == 0)
+               /* It's up to date, do nothing */
+               return;
+
+       /* It's old, we need to get new context with new version */
+       mc = ++mmu_context_cache;
+       if (!(mc & MMU_CONTEXT_ASID_MASK)) {
+               /*
+                * We have exhausted all ASIDs of this version.
+                * Flush the TLB and start new cycle.
+                */
+               flush_tlb_all();
+               /*
+                * Fix version. Note that we avoid version #0
+                * to distinguish NO_CONTEXT.
+                */
+               if (!mc)
+                       mmu_context_cache = mc = MMU_CONTEXT_FIRST_VERSION;
+       }
+       mm->context = mc;
+}
+
+/*
+ * Initialize the context related info for a new mm_struct
+ * instance.
+ */
+static inline int init_new_context(struct task_struct *tsk,
+                                      struct mm_struct *mm)
+{
+       mm->context = NO_CONTEXT;
+       return 0;
+}
+
+/*
+ * Destroy context related info for an mm_struct that is about
+ * to be put to rest.
+ */
+static inline void destroy_context(struct mm_struct *mm)
+{
+       /* Do nothing */
+}
+
+static inline void set_asid(unsigned long asid)
+{
+       /* XXX: We're destroying TLBEHI[8:31] */
+       sysreg_write(TLBEHI, asid & MMU_CONTEXT_ASID_MASK);
+       cpu_sync_pipeline();
+}
+
+static inline unsigned long get_asid(void)
+{
+       unsigned long asid;
+
+       asid = sysreg_read(TLBEHI);
+       return asid & MMU_CONTEXT_ASID_MASK;
+}
+
+static inline void activate_context(struct mm_struct *mm)
+{
+       get_mmu_context(mm);
+       set_asid(mm->context & MMU_CONTEXT_ASID_MASK);
+}
+
+static inline void switch_mm(struct mm_struct *prev,
+                                struct mm_struct *next,
+                                struct task_struct *tsk)
+{
+       if (likely(prev != next)) {
+               unsigned long __pgdir = (unsigned long)next->pgd;
+
+               sysreg_write(PTBR, __pgdir);
+               activate_context(next);
+       }
+}
+
+#define deactivate_mm(tsk,mm) do { } while(0)
+
+#define activate_mm(prev, next) switch_mm((prev), (next), NULL)
+
+static inline void
+enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk)
+{
+}
+
+
+static inline void enable_mmu(void)
+{
+       sysreg_write(MMUCR, (SYSREG_BIT(MMUCR_S)
+                            | SYSREG_BIT(E)
+                            | SYSREG_BIT(MMUCR_I)));
+       nop(); nop(); nop(); nop(); nop(); nop(); nop(); nop();
+
+       if (mmu_context_cache == NO_CONTEXT)
+               mmu_context_cache = MMU_CONTEXT_FIRST_VERSION;
+
+       set_asid(mmu_context_cache & MMU_CONTEXT_ASID_MASK);
+}
+
+static inline void disable_mmu(void)
+{
+       sysreg_write(MMUCR, SYSREG_BIT(MMUCR_S));
+}
+
+#endif /* __ASM_AVR32_MMU_CONTEXT_H */
diff --git a/include/asm-avr32/module.h b/include/asm-avr32/module.h
new file mode 100644 (file)
index 0000000..4514445
--- /dev/null
@@ -0,0 +1,28 @@
+#ifndef __ASM_AVR32_MODULE_H
+#define __ASM_AVR32_MODULE_H
+
+struct mod_arch_syminfo {
+       unsigned long got_offset;
+       int got_initialized;
+};
+
+struct mod_arch_specific {
+       /* Starting offset of got in the module core memory. */
+       unsigned long got_offset;
+       /* Size of the got. */
+       unsigned long got_size;
+       /* Number of symbols in syminfo. */
+       int nsyms;
+       /* Additional symbol information (got offsets). */
+       struct mod_arch_syminfo *syminfo;
+};
+
+#define Elf_Shdr               Elf32_Shdr
+#define Elf_Sym                        Elf32_Sym
+#define Elf_Ehdr               Elf32_Ehdr
+
+#define MODULE_PROC_FAMILY "AVR32v1"
+
+#define MODULE_ARCH_VERMAGIC MODULE_PROC_FAMILY
+
+#endif /* __ASM_AVR32_MODULE_H */
diff --git a/include/asm-avr32/msgbuf.h b/include/asm-avr32/msgbuf.h
new file mode 100644 (file)
index 0000000..ac18bc4
--- /dev/null
@@ -0,0 +1,31 @@
+#ifndef __ASM_AVR32_MSGBUF_H
+#define __ASM_AVR32_MSGBUF_H
+
+/*
+ * The msqid64_ds structure for i386 architecture.
+ * Note extra padding because this structure is passed back and forth
+ * between kernel and user space.
+ *
+ * Pad space is left for:
+ * - 64-bit time_t to solve y2038 problem
+ * - 2 miscellaneous 32-bit values
+ */
+
+struct msqid64_ds {
+       struct ipc64_perm msg_perm;
+       __kernel_time_t msg_stime;      /* last msgsnd time */
+       unsigned long   __unused1;
+       __kernel_time_t msg_rtime;      /* last msgrcv time */
+       unsigned long   __unused2;
+       __kernel_time_t msg_ctime;      /* last change time */
+       unsigned long   __unused3;
+       unsigned long  msg_cbytes;      /* current number of bytes on queue */
+       unsigned long  msg_qnum;        /* number of messages in queue */
+       unsigned long  msg_qbytes;      /* max number of bytes on queue */
+       __kernel_pid_t msg_lspid;       /* pid of last msgsnd */
+       __kernel_pid_t msg_lrpid;       /* last receive pid */
+       unsigned long  __unused4;
+       unsigned long  __unused5;
+};
+
+#endif /* __ASM_AVR32_MSGBUF_H */
diff --git a/include/asm-avr32/mutex.h b/include/asm-avr32/mutex.h
new file mode 100644 (file)
index 0000000..458c1f7
--- /dev/null
@@ -0,0 +1,9 @@
+/*
+ * Pull in the generic implementation for the mutex fastpath.
+ *
+ * TODO: implement optimized primitives instead, or leave the generic
+ * implementation in place, or pick the atomic_xchg() based generic
+ * implementation. (see asm-generic/mutex-xchg.h for details)
+ */
+
+#include <asm-generic/mutex-dec.h>
diff --git a/include/asm-avr32/namei.h b/include/asm-avr32/namei.h
new file mode 100644 (file)
index 0000000..f0a26de
--- /dev/null
@@ -0,0 +1,7 @@
+#ifndef __ASM_AVR32_NAMEI_H
+#define __ASM_AVR32_NAMEI_H
+
+/* This dummy routine may be changed to something useful */
+#define __emul_prefix() NULL
+
+#endif /* __ASM_AVR32_NAMEI_H */
diff --git a/include/asm-avr32/numnodes.h b/include/asm-avr32/numnodes.h
new file mode 100644 (file)
index 0000000..0b864d7
--- /dev/null
@@ -0,0 +1,7 @@
+#ifndef __ASM_AVR32_NUMNODES_H
+#define __ASM_AVR32_NUMNODES_H
+
+/* Max 4 nodes */
+#define NODES_SHIFT    2
+
+#endif /* __ASM_AVR32_NUMNODES_H */
diff --git a/include/asm-avr32/ocd.h b/include/asm-avr32/ocd.h
new file mode 100644 (file)
index 0000000..46f7318
--- /dev/null
@@ -0,0 +1,78 @@
+/*
+ * AVR32 OCD Registers
+ *
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef __ASM_AVR32_OCD_H
+#define __ASM_AVR32_OCD_H
+
+/* Debug Registers */
+#define DBGREG_DID               0
+#define DBGREG_DC                8
+#define DBGREG_DS               16
+#define DBGREG_RWCS             28
+#define DBGREG_RWA              36
+#define DBGREG_RWD              40
+#define DBGREG_WT               44
+#define DBGREG_DTC              52
+#define DBGREG_DTSA0            56
+#define DBGREG_DTSA1            60
+#define DBGREG_DTEA0            72
+#define DBGREG_DTEA1            76
+#define DBGREG_BWC0A            88
+#define DBGREG_BWC0B            92
+#define DBGREG_BWC1A            96
+#define DBGREG_BWC1B           100
+#define DBGREG_BWC2A           104
+#define DBGREG_BWC2B           108
+#define DBGREG_BWC3A           112
+#define DBGREG_BWC3B           116
+#define DBGREG_BWA0A           120
+#define DBGREG_BWA0B           124
+#define DBGREG_BWA1A           128
+#define DBGREG_BWA1B           132
+#define DBGREG_BWA2A           136
+#define DBGREG_BWA2B           140
+#define DBGREG_BWA3A           144
+#define DBGREG_BWA3B           148
+#define DBGREG_BWD3A           153
+#define DBGREG_BWD3B           156
+
+#define DBGREG_PID             284
+
+#define SABAH_OCD              0x01
+#define SABAH_ICACHE           0x02
+#define SABAH_MEM_CACHED       0x04
+#define SABAH_MEM_UNCACHED     0x05
+
+/* Fields in the Development Control register */
+#define DC_SS_BIT              8
+
+#define DC_SS                  (1 <<  DC_SS_BIT)
+#define DC_DBE                 (1 << 13)
+#define DC_RID                 (1 << 27)
+#define DC_ORP                 (1 << 28)
+#define DC_MM                  (1 << 29)
+#define DC_RES                 (1 << 30)
+
+/* Fields in the Development Status register */
+#define DS_SSS                 (1 <<  0)
+#define DS_SWB                 (1 <<  1)
+#define DS_HWB                 (1 <<  2)
+#define DS_BP_SHIFT            8
+#define DS_BP_MASK             (0xff << DS_BP_SHIFT)
+
+#define __mfdr(addr)                                                   \
+({                                                                     \
+       register unsigned long value;                                   \
+       asm volatile("mfdr      %0, %1" : "=r"(value) : "i"(addr));     \
+       value;                                                          \
+})
+#define __mtdr(addr, value)                                            \
+       asm volatile("mtdr      %0, %1" : : "i"(addr), "r"(value))
+
+#endif /* __ASM_AVR32_OCD_H */
diff --git a/include/asm-avr32/page.h b/include/asm-avr32/page.h
new file mode 100644 (file)
index 0000000..0f630b3
--- /dev/null
@@ -0,0 +1,112 @@
+/*
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef __ASM_AVR32_PAGE_H
+#define __ASM_AVR32_PAGE_H
+
+#ifdef __KERNEL__
+
+/* PAGE_SHIFT determines the page size */
+#define PAGE_SHIFT     12
+#ifdef __ASSEMBLY__
+#define PAGE_SIZE      (1 << PAGE_SHIFT)
+#else
+#define PAGE_SIZE      (1UL << PAGE_SHIFT)
+#endif
+#define PAGE_MASK      (~(PAGE_SIZE-1))
+#define PTE_MASK       PAGE_MASK
+
+#ifndef __ASSEMBLY__
+
+#include <asm/addrspace.h>
+
+extern void clear_page(void *to);
+extern void copy_page(void *to, void *from);
+
+#define clear_user_page(page, vaddr, pg)       clear_page(page)
+#define copy_user_page(to, from, vaddr, pg)    copy_page(to, from)
+
+/*
+ * These are used to make use of C type-checking..
+ */
+typedef struct { unsigned long pte; } pte_t;
+typedef struct { unsigned long pgd; } pgd_t;
+typedef struct { unsigned long pgprot; } pgprot_t;
+
+#define pte_val(x)             ((x).pte)
+#define pgd_val(x)             ((x).pgd)
+#define pgprot_val(x)          ((x).pgprot)
+
+#define __pte(x)               ((pte_t) { (x) })
+#define __pgd(x)               ((pgd_t) { (x) })
+#define __pgprot(x)            ((pgprot_t) { (x) })
+
+/* FIXME: These should be removed soon */
+extern unsigned long memory_start, memory_end;
+
+/* Pure 2^n version of get_order */
+static inline int get_order(unsigned long size)
+{
+       unsigned lz;
+
+       size = (size - 1) >> PAGE_SHIFT;
+       asm("clz %0, %1" : "=r"(lz) : "r"(size));
+       return 32 - lz;
+}
+
+#endif /* !__ASSEMBLY__ */
+
+/* Align the pointer to the (next) page boundary */
+#define PAGE_ALIGN(addr)       (((addr) + PAGE_SIZE - 1) & PAGE_MASK)
+
+/*
+ * The hardware maps the virtual addresses 0x80000000 -> 0x9fffffff
+ * permanently to the physical addresses 0x00000000 -> 0x1fffffff when
+ * segmentation is enabled. We want to make use of this in order to
+ * minimize TLB pressure.
+ */
+#define PAGE_OFFSET            (0x80000000UL)
+
+/*
+ * ALSA uses virt_to_page() on DMA pages, which I'm not entirely sure
+ * is a good idea. Anyway, we can't simply subtract PAGE_OFFSET here
+ * in that case, so we'll have to mask out the three most significant
+ * bits of the address instead...
+ *
+ * What's the difference between __pa() and virt_to_phys() anyway?
+ */
+#define __pa(x)                PHYSADDR(x)
+#define __va(x)                ((void *)(P1SEGADDR(x)))
+
+#define MAP_NR(addr)   (((unsigned long)(addr) - PAGE_OFFSET) >> PAGE_SHIFT)
+
+#define phys_to_page(phys)     (pfn_to_page(phys >> PAGE_SHIFT))
+#define page_to_phys(page)     (page_to_pfn(page) << PAGE_SHIFT)
+
+#ifndef CONFIG_NEED_MULTIPLE_NODES
+
+#define PHYS_PFN_OFFSET                (CONFIG_PHYS_OFFSET >> PAGE_SHIFT)
+
+#define pfn_to_page(pfn)       (mem_map + ((pfn) - PHYS_PFN_OFFSET))
+#define page_to_pfn(page)      ((unsigned long)((page) - mem_map) + PHYS_PFN_OFFSET)
+#define pfn_valid(pfn)         ((pfn) >= PHYS_PFN_OFFSET && (pfn) < (PHYS_PFN_OFFSET + max_mapnr))
+#endif /* CONFIG_NEED_MULTIPLE_NODES */
+
+#define virt_to_page(kaddr)    pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
+#define virt_addr_valid(kaddr) pfn_valid(__pa(kaddr) >> PAGE_SHIFT)
+
+#define VM_DATA_DEFAULT_FLAGS  (VM_READ | VM_WRITE |   \
+                                VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
+
+/*
+ * Memory above this physical address will be considered highmem.
+ */
+#define HIGHMEM_START          0x20000000UL
+
+#endif /* __KERNEL__ */
+
+#endif /* __ASM_AVR32_PAGE_H */
diff --git a/include/asm-avr32/param.h b/include/asm-avr32/param.h
new file mode 100644 (file)
index 0000000..34bc8d4
--- /dev/null
@@ -0,0 +1,23 @@
+#ifndef __ASM_AVR32_PARAM_H
+#define __ASM_AVR32_PARAM_H
+
+#ifdef __KERNEL__
+# define HZ            CONFIG_HZ
+# define USER_HZ       100             /* User interfaces are in "ticks" */
+# define CLOCKS_PER_SEC        (USER_HZ)       /* frequency at which times() counts */
+#endif
+
+#ifndef HZ
+# define HZ            100
+#endif
+
+/* TODO: Should be configurable */
+#define EXEC_PAGESIZE  4096
+
+#ifndef NOGROUP
+# define NOGROUP       (-1)
+#endif
+
+#define MAXHOSTNAMELEN 64
+
+#endif /* __ASM_AVR32_PARAM_H */
diff --git a/include/asm-avr32/pci.h b/include/asm-avr32/pci.h
new file mode 100644 (file)
index 0000000..0f5f134
--- /dev/null
@@ -0,0 +1,8 @@
+#ifndef __ASM_AVR32_PCI_H__
+#define __ASM_AVR32_PCI_H__
+
+/* We don't support PCI yet, but some drivers require this file anyway */
+
+#define PCI_DMA_BUS_IS_PHYS    (1)
+
+#endif /* __ASM_AVR32_PCI_H__ */
diff --git a/include/asm-avr32/percpu.h b/include/asm-avr32/percpu.h
new file mode 100644 (file)
index 0000000..69227b4
--- /dev/null
@@ -0,0 +1,6 @@
+#ifndef __ASM_AVR32_PERCPU_H
+#define __ASM_AVR32_PERCPU_H
+
+#include <asm-generic/percpu.h>
+
+#endif /* __ASM_AVR32_PERCPU_H */
diff --git a/include/asm-avr32/pgalloc.h b/include/asm-avr32/pgalloc.h
new file mode 100644 (file)
index 0000000..7492cfb
--- /dev/null
@@ -0,0 +1,96 @@
+/*
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef __ASM_AVR32_PGALLOC_H
+#define __ASM_AVR32_PGALLOC_H
+
+#include <asm/processor.h>
+#include <linux/threads.h>
+#include <linux/slab.h>
+#include <linux/mm.h>
+
+#define pmd_populate_kernel(mm, pmd, pte) \
+       set_pmd(pmd, __pmd(_PAGE_TABLE + __pa(pte)))
+
+static __inline__ void pmd_populate(struct mm_struct *mm, pmd_t *pmd,
+                                   struct page *pte)
+{
+       set_pmd(pmd, __pmd(_PAGE_TABLE + page_to_phys(pte)));
+}
+
+/*
+ * Allocate and free page tables
+ */
+static __inline__ pgd_t *pgd_alloc(struct mm_struct *mm)
+{
+       unsigned int pgd_size = (USER_PTRS_PER_PGD * sizeof(pgd_t));
+       pgd_t *pgd = (pgd_t *)kmalloc(pgd_size, GFP_KERNEL);
+
+       if (pgd)
+               memset(pgd, 0, pgd_size);
+
+       return pgd;
+}
+
+static inline void pgd_free(pgd_t *pgd)
+{
+       kfree(pgd);
+}
+
+static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
+                                         unsigned long address)
+{
+       int count = 0;
+       pte_t *pte;
+
+       do {
+               pte = (pte_t *) __get_free_page(GFP_KERNEL | __GFP_REPEAT);
+               if (pte)
+                       clear_page(pte);
+               else {
+                       current->state = TASK_UNINTERRUPTIBLE;
+                       schedule_timeout(HZ);
+               }
+       } while (!pte && (count++ < 10));
+
+       return pte;
+}
+
+static inline struct page *pte_alloc_one(struct mm_struct *mm,
+                                        unsigned long address)
+{
+       int count = 0;
+       struct page *pte;
+
+       do {
+               pte = alloc_pages(GFP_KERNEL, 0);
+               if (pte)
+                       clear_page(page_address(pte));
+               else {
+                       current->state = TASK_UNINTERRUPTIBLE;
+                       schedule_timeout(HZ);
+               }
+       } while (!pte && (count++ < 10));
+
+       return pte;
+}
+
+static inline void pte_free_kernel(pte_t *pte)
+{
+       free_page((unsigned long)pte);
+}
+
+static inline void pte_free(struct page *pte)
+{
+       __free_page(pte);
+}
+
+#define __pte_free_tlb(tlb,pte) tlb_remove_page((tlb),(pte))
+
+#define check_pgt_cache() do { } while(0)
+
+#endif /* __ASM_AVR32_PGALLOC_H */
diff --git a/include/asm-avr32/pgtable-2level.h b/include/asm-avr32/pgtable-2level.h
new file mode 100644 (file)
index 0000000..425dd56
--- /dev/null
@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef __ASM_AVR32_PGTABLE_2LEVEL_H
+#define __ASM_AVR32_PGTABLE_2LEVEL_H
+
+#include <asm-generic/pgtable-nopmd.h>
+
+/*
+ * Traditional 2-level paging structure
+ */
+#define PGDIR_SHIFT    22
+#define PTRS_PER_PGD   1024
+
+#define PTRS_PER_PTE   1024
+
+#ifndef __ASSEMBLY__
+#define pte_ERROR(e) \
+       printk("%s:%d: bad pte %08lx.\n", __FILE__, __LINE__, pte_val(e))
+#define pgd_ERROR(e) \
+       printk("%s:%d: bad pgd %08lx.\n", __FILE__, __LINE__, pgd_val(e))
+
+/*
+ * Certain architectures need to do special things when PTEs
+ * within a page table are directly modified.  Thus, the following
+ * hook is made available.
+ */
+#define set_pte(pteptr, pteval) (*(pteptr) = pteval)
+#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep, pteval)
+
+/*
+ * (pmds are folded into pgds so this doesn't get actually called,
+ * but the define is needed for a generic inline function.)
+ */
+#define set_pmd(pmdptr, pmdval) (*(pmdptr) = pmdval)
+
+#define pte_pfn(x)             ((unsigned long)(((x).pte >> PAGE_SHIFT)))
+#define pfn_pte(pfn, prot)     __pte(((pfn) << PAGE_SHIFT) | pgprot_val(prot))
+#define pfn_pmd(pfn, prot)     __pmd(((pfn) << PAGE_SHIFT) | pgprot_val(prot))
+
+#endif /* !__ASSEMBLY__ */
+
+#endif /* __ASM_AVR32_PGTABLE_2LEVEL_H */
diff --git a/include/asm-avr32/pgtable.h b/include/asm-avr32/pgtable.h
new file mode 100644 (file)
index 0000000..6b8ca9d
--- /dev/null
@@ -0,0 +1,408 @@
+/*
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef __ASM_AVR32_PGTABLE_H
+#define __ASM_AVR32_PGTABLE_H
+
+#include <asm/addrspace.h>
+
+#ifndef __ASSEMBLY__
+#include <linux/sched.h>
+
+#endif /* !__ASSEMBLY__ */
+
+/*
+ * Use two-level page tables just as the i386 (without PAE)
+ */
+#include <asm/pgtable-2level.h>
+
+/*
+ * The following code might need some cleanup when the values are
+ * final...
+ */
+#define PMD_SIZE       (1UL << PMD_SHIFT)
+#define PMD_MASK       (~(PMD_SIZE-1))
+#define PGDIR_SIZE     (1UL << PGDIR_SHIFT)
+#define PGDIR_MASK     (~(PGDIR_SIZE-1))
+
+#define USER_PTRS_PER_PGD      (TASK_SIZE / PGDIR_SIZE)
+#define FIRST_USER_ADDRESS     0
+
+#define PTE_PHYS_MASK  0x1ffff000
+
+#ifndef __ASSEMBLY__
+extern pgd_t swapper_pg_dir[PTRS_PER_PGD];
+extern void paging_init(void);
+
+/*
+ * ZERO_PAGE is a global shared page that is always zero: used for
+ * zero-mapped memory areas etc.
+ */
+extern struct page *empty_zero_page;
+#define ZERO_PAGE(vaddr) (empty_zero_page)
+
+/*
+ * Just any arbitrary offset to the start of the vmalloc VM area: the
+ * current 8 MiB value just means that there will be a 8 MiB "hole"
+ * after the uncached physical memory (P2 segment) until the vmalloc
+ * area starts. That means that any out-of-bounds memory accesses will
+ * hopefully be caught; we don't know if the end of the P1/P2 segments
+ * are actually used for anything, but it is anyway safer to let the
+ * MMU catch these kinds of errors than to rely on the memory bus.
+ *
+ * A "hole" of the same size is added to the end of the P3 segment as
+ * well. It might seem wasteful to use 16 MiB of virtual address space
+ * on this, but we do have 512 MiB of it...
+ *
+ * The vmalloc() routines leave a hole of 4 KiB between each vmalloced
+ * area for the same reason.
+ */
+#define VMALLOC_OFFSET (8 * 1024 * 1024)
+#define VMALLOC_START  (P3SEG + VMALLOC_OFFSET)
+#define VMALLOC_END    (P4SEG - VMALLOC_OFFSET)
+#endif /* !__ASSEMBLY__ */
+
+/*
+ * Page flags. Some of these flags are not directly supported by
+ * hardware, so we have to emulate them.
+ */
+#define _TLBEHI_BIT_VALID      9
+#define _TLBEHI_VALID          (1 << _TLBEHI_BIT_VALID)
+
+#define _PAGE_BIT_WT           0  /* W-bit   : write-through */
+#define _PAGE_BIT_DIRTY                1  /* D-bit   : page changed */
+#define _PAGE_BIT_SZ0          2  /* SZ0-bit : Size of page */
+#define _PAGE_BIT_SZ1          3  /* SZ1-bit : Size of page */
+#define _PAGE_BIT_EXECUTE      4  /* X-bit   : execute access allowed */
+#define _PAGE_BIT_RW           5  /* AP0-bit : write access allowed */
+#define _PAGE_BIT_USER         6  /* AP1-bit : user space access allowed */
+#define _PAGE_BIT_BUFFER       7  /* B-bit   : bufferable */
+#define _PAGE_BIT_GLOBAL       8  /* G-bit   : global (ignore ASID) */
+#define _PAGE_BIT_CACHABLE     9  /* C-bit   : cachable */
+
+/* If we drop support for 1K pages, we get two extra bits */
+#define _PAGE_BIT_PRESENT      10
+#define _PAGE_BIT_ACCESSED     11 /* software: page was accessed */
+
+/* The following flags are only valid when !PRESENT */
+#define _PAGE_BIT_FILE         0 /* software: pagecache or swap? */
+
+#define _PAGE_WT               (1 << _PAGE_BIT_WT)
+#define _PAGE_DIRTY            (1 << _PAGE_BIT_DIRTY)
+#define _PAGE_EXECUTE          (1 << _PAGE_BIT_EXECUTE)
+#define _PAGE_RW               (1 << _PAGE_BIT_RW)
+#define _PAGE_USER             (1 << _PAGE_BIT_USER)
+#define _PAGE_BUFFER           (1 << _PAGE_BIT_BUFFER)
+#define _PAGE_GLOBAL           (1 << _PAGE_BIT_GLOBAL)
+#define _PAGE_CACHABLE         (1 << _PAGE_BIT_CACHABLE)
+
+/* Software flags */
+#define _PAGE_ACCESSED         (1 << _PAGE_BIT_ACCESSED)
+#define _PAGE_PRESENT          (1 << _PAGE_BIT_PRESENT)
+#define _PAGE_FILE             (1 << _PAGE_BIT_FILE)
+
+/*
+ * Page types, i.e. sizes. _PAGE_TYPE_NONE corresponds to what is
+ * usually called _PAGE_PROTNONE on other architectures.
+ *
+ * XXX: Find out if _PAGE_PROTNONE is equivalent with !_PAGE_USER. If
+ * so, we can encode all possible page sizes (although we can't really
+ * support 1K pages anyway due to the _PAGE_PRESENT and _PAGE_ACCESSED
+ * bits)
+ *
+ */
+#define _PAGE_TYPE_MASK                ((1 << _PAGE_BIT_SZ0) | (1 << _PAGE_BIT_SZ1))
+#define _PAGE_TYPE_NONE                (0 << _PAGE_BIT_SZ0)
+#define _PAGE_TYPE_SMALL       (1 << _PAGE_BIT_SZ0)
+#define _PAGE_TYPE_MEDIUM      (2 << _PAGE_BIT_SZ0)
+#define _PAGE_TYPE_LARGE       (3 << _PAGE_BIT_SZ0)
+
+/*
+ * Mask which drop software flags. We currently can't handle more than
+ * 512 MiB of physical memory, so we can use bits 29-31 for other
+ * stuff.  With a fixed 4K page size, we can use bits 10-11 as well as
+ * bits 2-3 (SZ)
+ */
+#define _PAGE_FLAGS_HARDWARE_MASK      0xfffff3ff
+
+#define _PAGE_FLAGS_CACHE_MASK (_PAGE_CACHABLE | _PAGE_BUFFER | _PAGE_WT)
+
+/* TODO: Check for saneness */
+/* User-mode page table flags (to be set in a pgd or pmd entry) */
+#define _PAGE_TABLE            (_PAGE_PRESENT | _PAGE_TYPE_SMALL | _PAGE_RW \
+                                | _PAGE_USER | _PAGE_ACCESSED | _PAGE_DIRTY)
+/* Kernel-mode page table flags */
+#define _KERNPG_TABLE          (_PAGE_PRESENT | _PAGE_TYPE_SMALL | _PAGE_RW \
+                                | _PAGE_ACCESSED | _PAGE_DIRTY)
+/* Flags that may be modified by software */
+#define _PAGE_CHG_MASK         (PTE_MASK | _PAGE_ACCESSED | _PAGE_DIRTY \
+                                | _PAGE_FLAGS_CACHE_MASK)
+
+#define _PAGE_FLAGS_READ       (_PAGE_CACHABLE | _PAGE_BUFFER)
+#define _PAGE_FLAGS_WRITE      (_PAGE_FLAGS_READ | _PAGE_RW | _PAGE_DIRTY)
+
+#define _PAGE_NORMAL(x)        __pgprot((x) | _PAGE_PRESENT | _PAGE_TYPE_SMALL \
+                                | _PAGE_ACCESSED)
+
+#define PAGE_NONE      (_PAGE_ACCESSED | _PAGE_TYPE_NONE)
+#define PAGE_READ      (_PAGE_FLAGS_READ | _PAGE_USER)
+#define PAGE_EXEC      (_PAGE_FLAGS_READ | _PAGE_EXECUTE | _PAGE_USER)
+#define PAGE_WRITE     (_PAGE_FLAGS_WRITE | _PAGE_USER)
+#define PAGE_KERNEL    _PAGE_NORMAL(_PAGE_FLAGS_WRITE | _PAGE_EXECUTE | _PAGE_GLOBAL)
+#define PAGE_KERNEL_RO _PAGE_NORMAL(_PAGE_FLAGS_READ | _PAGE_EXECUTE | _PAGE_GLOBAL)
+
+#define _PAGE_P(x)     _PAGE_NORMAL((x) & ~(_PAGE_RW | _PAGE_DIRTY))
+#define _PAGE_S(x)     _PAGE_NORMAL(x)
+
+#define PAGE_COPY      _PAGE_P(PAGE_WRITE | PAGE_READ)
+
+#ifndef __ASSEMBLY__
+/*
+ * The hardware supports flags for write- and execute access. Read is
+ * always allowed if the page is loaded into the TLB, so the "-w-",
+ * "--x" and "-wx" mappings are implemented as "rw-", "r-x" and "rwx",
+ * respectively.
+ *
+ * The "---" case is handled by software; the page will simply not be
+ * loaded into the TLB if the page type is _PAGE_TYPE_NONE.
+ */
+
+#define __P000 __pgprot(PAGE_NONE)
+#define __P001 _PAGE_P(PAGE_READ)
+#define __P010 _PAGE_P(PAGE_WRITE)
+#define __P011 _PAGE_P(PAGE_WRITE | PAGE_READ)
+#define __P100 _PAGE_P(PAGE_EXEC)
+#define __P101 _PAGE_P(PAGE_EXEC | PAGE_READ)
+#define __P110 _PAGE_P(PAGE_EXEC | PAGE_WRITE)
+#define __P111 _PAGE_P(PAGE_EXEC | PAGE_WRITE | PAGE_READ)
+
+#define __S000 __pgprot(PAGE_NONE)
+#define __S001 _PAGE_S(PAGE_READ)
+#define __S010 _PAGE_S(PAGE_WRITE)
+#define __S011 _PAGE_S(PAGE_WRITE | PAGE_READ)
+#define __S100 _PAGE_S(PAGE_EXEC)
+#define __S101 _PAGE_S(PAGE_EXEC | PAGE_READ)
+#define __S110 _PAGE_S(PAGE_EXEC | PAGE_WRITE)
+#define __S111 _PAGE_S(PAGE_EXEC | PAGE_WRITE | PAGE_READ)
+
+#define pte_none(x)    (!pte_val(x))
+#define pte_present(x) (pte_val(x) & _PAGE_PRESENT)
+
+#define pte_clear(mm,addr,xp)                                  \
+       do {                                                    \
+               set_pte_at(mm, addr, xp, __pte(0));             \
+       } while (0)
+
+/*
+ * The following only work if pte_present() is true.
+ * Undefined behaviour if not..
+ */
+static inline int pte_read(pte_t pte)
+{
+       return pte_val(pte) & _PAGE_USER;
+}
+static inline int pte_write(pte_t pte)
+{
+       return pte_val(pte) & _PAGE_RW;
+}
+static inline int pte_exec(pte_t pte)
+{
+       return pte_val(pte) & _PAGE_EXECUTE;
+}
+static inline int pte_dirty(pte_t pte)
+{
+       return pte_val(pte) & _PAGE_DIRTY;
+}
+static inline int pte_young(pte_t pte)
+{
+       return pte_val(pte) & _PAGE_ACCESSED;
+}
+
+/*
+ * The following only work if pte_present() is not true.
+ */
+static inline int pte_file(pte_t pte)
+{
+       return pte_val(pte) & _PAGE_FILE;
+}
+
+/* Mutator functions for PTE bits */
+static inline pte_t pte_rdprotect(pte_t pte)
+{
+       set_pte(&pte, __pte(pte_val(pte) & ~_PAGE_USER));
+       return pte;
+}
+static inline pte_t pte_wrprotect(pte_t pte)
+{
+       set_pte(&pte, __pte(pte_val(pte) & ~_PAGE_RW));
+       return pte;
+}
+static inline pte_t pte_exprotect(pte_t pte)
+{
+       set_pte(&pte, __pte(pte_val(pte) & ~_PAGE_EXECUTE));
+       return pte;
+}
+static inline pte_t pte_mkclean(pte_t pte)
+{
+       set_pte(&pte, __pte(pte_val(pte) & ~_PAGE_DIRTY));
+       return pte;
+}
+static inline pte_t pte_mkold(pte_t pte)
+{
+       set_pte(&pte, __pte(pte_val(pte) & ~_PAGE_ACCESSED));
+       return pte;
+}
+static inline pte_t pte_mkread(pte_t pte)
+{
+       set_pte(&pte, __pte(pte_val(pte) | _PAGE_USER));
+       return pte;
+}
+static inline pte_t pte_mkwrite(pte_t pte)
+{
+       set_pte(&pte, __pte(pte_val(pte) | _PAGE_RW));
+       return pte;
+}
+static inline pte_t pte_mkexec(pte_t pte)
+{
+       set_pte(&pte, __pte(pte_val(pte) | _PAGE_EXECUTE));
+       return pte;
+}
+static inline pte_t pte_mkdirty(pte_t pte)
+{
+       set_pte(&pte, __pte(pte_val(pte) | _PAGE_DIRTY));
+       return pte;
+}
+static inline pte_t pte_mkyoung(pte_t pte)
+{
+       set_pte(&pte, __pte(pte_val(pte) | _PAGE_ACCESSED));
+       return pte;
+}
+
+#define pmd_none(x)    (!pmd_val(x))
+#define pmd_present(x) (pmd_val(x) & _PAGE_PRESENT)
+#define pmd_clear(xp)  do { set_pmd(xp, __pmd(0)); } while (0)
+#define        pmd_bad(x)      ((pmd_val(x) & (~PAGE_MASK & ~_PAGE_USER))      \
+                        != _KERNPG_TABLE)
+
+/*
+ * Permanent address of a page. We don't support highmem, so this is
+ * trivial.
+ */
+#define pages_to_mb(x) ((x) >> (20-PAGE_SHIFT))
+#define pte_page(x)    phys_to_page(pte_val(x) & PTE_PHYS_MASK)
+
+/*
+ * Mark the prot value as uncacheable and unbufferable
+ */
+#define pgprot_noncached(prot)                                         \
+       __pgprot(pgprot_val(prot) & ~(_PAGE_BUFFER | _PAGE_CACHABLE))
+
+/*
+ * Mark the prot value as uncacheable but bufferable
+ */
+#define pgprot_writecombine(prot)                                      \
+       __pgprot((pgprot_val(prot) & ~_PAGE_CACHABLE) | _PAGE_BUFFER)
+
+/*
+ * Conversion functions: convert a page and protection to a page entry,
+ * and a page entry and page directory to the page they refer to.
+ *
+ * extern pte_t mk_pte(struct page *page, pgprot_t pgprot)
+ */
+#define mk_pte(page, pgprot)   pfn_pte(page_to_pfn(page), (pgprot))
+
+static inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
+{
+       set_pte(&pte, __pte((pte_val(pte) & _PAGE_CHG_MASK)
+                           | pgprot_val(newprot)));
+       return pte;
+}
+
+#define page_pte(page) page_pte_prot(page, __pgprot(0))
+
+#define pmd_page_vaddr(pmd)                                    \
+       ((unsigned long) __va(pmd_val(pmd) & PAGE_MASK))
+
+#define pmd_page(pmd)  (phys_to_page(pmd_val(pmd)))
+
+/* to find an entry in a page-table-directory. */
+#define pgd_index(address) (((address) >> PGDIR_SHIFT) & (PTRS_PER_PGD-1))
+#define pgd_offset(mm, address) ((mm)->pgd+pgd_index(address))
+#define pgd_offset_current(address)                            \
+       ((pgd_t *)__mfsr(SYSREG_PTBR) + pgd_index(address))
+
+/* to find an entry in a kernel page-table-directory */
+#define pgd_offset_k(address) pgd_offset(&init_mm, address)
+
+/* Find an entry in the third-level page table.. */
+#define pte_index(address)                             \
+       ((address >> PAGE_SHIFT) & (PTRS_PER_PTE - 1))
+#define pte_offset(dir, address)                                       \
+       ((pte_t *) pmd_page_vaddr(*(dir)) + pte_index(address))
+#define pte_offset_kernel(dir, address)                                        \
+       ((pte_t *) pmd_page_vaddr(*(dir)) + pte_index(address))
+#define pte_offset_map(dir, address) pte_offset_kernel(dir, address)
+#define pte_offset_map_nested(dir, address) pte_offset_kernel(dir, address)
+#define pte_unmap(pte)         do { } while (0)
+#define pte_unmap_nested(pte)  do { } while (0)
+
+struct vm_area_struct;
+extern void update_mmu_cache(struct vm_area_struct * vma,
+                            unsigned long address, pte_t pte);
+
+/*
+ * Encode and decode a swap entry
+ *
+ * Constraints:
+ *   _PAGE_FILE at bit 0
+ *   _PAGE_TYPE_* at bits 2-3 (for emulating _PAGE_PROTNONE)
+ *   _PAGE_PRESENT at bit 10
+ *
+ * We encode the type into bits 4-9 and offset into bits 11-31. This
+ * gives us a 21 bits offset, or 2**21 * 4K = 8G usable swap space per
+ * device, and 64 possible types.
+ *
+ * NOTE: We should set ZEROs at the position of _PAGE_PRESENT
+ *       and _PAGE_PROTNONE bits
+ */
+#define __swp_type(x)          (((x).val >> 4) & 0x3f)
+#define __swp_offset(x)                ((x).val >> 11)
+#define __swp_entry(type, offset) ((swp_entry_t) { ((type) << 4) | ((offset) << 11) })
+#define __pte_to_swp_entry(pte)        ((swp_entry_t) { pte_val(pte) })
+#define __swp_entry_to_pte(x)  ((pte_t) { (x).val })
+
+/*
+ * Encode and decode a nonlinear file mapping entry. We have to
+ * preserve _PAGE_FILE and _PAGE_PRESENT here. _PAGE_TYPE_* isn't
+ * necessary, since _PAGE_FILE implies !_PAGE_PROTNONE (?)
+ */
+#define PTE_FILE_MAX_BITS      30
+#define pte_to_pgoff(pte)      (((pte_val(pte) >> 1) & 0x1ff)          \
+                                | ((pte_val(pte) >> 11) << 9))
+#define pgoff_to_pte(off)      ((pte_t) { ((((off) & 0x1ff) << 1)      \
+                                           | (((off) >> 9) << 11)      \
+                                           | _PAGE_FILE) })
+
+typedef pte_t *pte_addr_t;
+
+#define kern_addr_valid(addr)  (1)
+
+#define io_remap_pfn_range(vma, vaddr, pfn, size, prot)        \
+       remap_pfn_range(vma, vaddr, pfn, size, prot)
+
+#define MK_IOSPACE_PFN(space, pfn)     (pfn)
+#define GET_IOSPACE(pfn)               0
+#define GET_PFN(pfn)                   (pfn)
+
+/* No page table caches to initialize (?) */
+#define pgtable_cache_init()   do { } while(0)
+
+#include <asm-generic/pgtable.h>
+
+#endif /* !__ASSEMBLY__ */
+
+#endif /* __ASM_AVR32_PGTABLE_H */
diff --git a/include/asm-avr32/poll.h b/include/asm-avr32/poll.h
new file mode 100644 (file)
index 0000000..736e297
--- /dev/null
@@ -0,0 +1,27 @@
+#ifndef __ASM_AVR32_POLL_H
+#define __ASM_AVR32_POLL_H
+
+/* These are specified by iBCS2 */
+#define POLLIN         0x0001
+#define POLLPRI                0x0002
+#define POLLOUT                0x0004
+#define POLLERR                0x0008
+#define POLLHUP                0x0010
+#define POLLNVAL       0x0020
+
+/* The rest seem to be more-or-less nonstandard. Check them! */
+#define POLLRDNORM     0x0040
+#define POLLRDBAND     0x0080
+#define POLLWRNORM     0x0100
+#define POLLWRBAND     0x0200
+#define POLLMSG                0x0400
+#define POLLREMOVE     0x1000
+#define POLLRDHUP      0x2000
+
+struct pollfd {
+       int fd;
+       short events;
+       short revents;
+};
+
+#endif /* __ASM_AVR32_POLL_H */
diff --git a/include/asm-avr32/posix_types.h b/include/asm-avr32/posix_types.h
new file mode 100644 (file)
index 0000000..2831b03
--- /dev/null
@@ -0,0 +1,129 @@
+/*
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef __ASM_AVR32_POSIX_TYPES_H
+#define __ASM_AVR32_POSIX_TYPES_H
+
+/*
+ * This file is generally used by user-level software, so you need to
+ * be a little careful about namespace pollution etc.  Also, we cannot
+ * assume GCC is being used.
+ */
+
+typedef unsigned long   __kernel_ino_t;
+typedef unsigned short  __kernel_mode_t;
+typedef unsigned short  __kernel_nlink_t;
+typedef long            __kernel_off_t;
+typedef int             __kernel_pid_t;
+typedef unsigned short  __kernel_ipc_pid_t;
+typedef unsigned int   __kernel_uid_t;
+typedef unsigned int   __kernel_gid_t;
+typedef unsigned long  __kernel_size_t;
+typedef int             __kernel_ssize_t;
+typedef int             __kernel_ptrdiff_t;
+typedef long            __kernel_time_t;
+typedef long            __kernel_suseconds_t;
+typedef long            __kernel_clock_t;
+typedef int             __kernel_timer_t;
+typedef int             __kernel_clockid_t;
+typedef int             __kernel_daddr_t;
+typedef char *          __kernel_caddr_t;
+typedef unsigned short  __kernel_uid16_t;
+typedef unsigned short  __kernel_gid16_t;
+typedef unsigned int    __kernel_uid32_t;
+typedef unsigned int    __kernel_gid32_t;
+
+typedef unsigned short  __kernel_old_uid_t;
+typedef unsigned short  __kernel_old_gid_t;
+typedef unsigned short  __kernel_old_dev_t;
+
+#ifdef __GNUC__
+typedef long long       __kernel_loff_t;
+#endif
+
+typedef struct {
+#if defined(__KERNEL__) || defined(__USE_ALL)
+    int     val[2];
+#else /* !defined(__KERNEL__) && !defined(__USE_ALL) */
+    int     __val[2];
+#endif /* !defined(__KERNEL__) && !defined(__USE_ALL) */
+} __kernel_fsid_t;
+
+#if defined(__KERNEL__)
+
+#undef  __FD_SET
+static __inline__ void __FD_SET(unsigned long __fd, __kernel_fd_set *__fdsetp)
+{
+    unsigned long __tmp = __fd / __NFDBITS;
+    unsigned long __rem = __fd % __NFDBITS;
+    __fdsetp->fds_bits[__tmp] |= (1UL<<__rem);
+}
+
+#undef  __FD_CLR
+static __inline__ void __FD_CLR(unsigned long __fd, __kernel_fd_set *__fdsetp)
+{
+    unsigned long __tmp = __fd / __NFDBITS;
+    unsigned long __rem = __fd % __NFDBITS;
+    __fdsetp->fds_bits[__tmp] &= ~(1UL<<__rem);
+}
+
+
+#undef  __FD_ISSET
+static __inline__ int __FD_ISSET(unsigned long __fd, const __kernel_fd_set *__p)
+{
+    unsigned long __tmp = __fd / __NFDBITS;
+    unsigned long __rem = __fd % __NFDBITS;
+    return (__p->fds_bits[__tmp] & (1UL<<__rem)) != 0;
+}
+
+/*
+ * This will unroll the loop for the normal constant case (8 ints,
+ * for a 256-bit fd_set)
+ */
+#undef  __FD_ZERO
+static __inline__ void __FD_ZERO(__kernel_fd_set *__p)
+{
+    unsigned long *__tmp = __p->fds_bits;
+    int __i;
+
+    if (__builtin_constant_p(__FDSET_LONGS)) {
+        switch (__FDSET_LONGS) {
+            case 16:
+                __tmp[ 0] = 0; __tmp[ 1] = 0;
+                __tmp[ 2] = 0; __tmp[ 3] = 0;
+                __tmp[ 4] = 0; __tmp[ 5] = 0;
+                __tmp[ 6] = 0; __tmp[ 7] = 0;
+                __tmp[ 8] = 0; __tmp[ 9] = 0;
+                __tmp[10] = 0; __tmp[11] = 0;
+                __tmp[12] = 0; __tmp[13] = 0;
+                __tmp[14] = 0; __tmp[15] = 0;
+                return;
+
+            case 8:
+                __tmp[ 0] = 0; __tmp[ 1] = 0;
+                __tmp[ 2] = 0; __tmp[ 3] = 0;
+                __tmp[ 4] = 0; __tmp[ 5] = 0;
+                __tmp[ 6] = 0; __tmp[ 7] = 0;
+                return;
+
+            case 4:
+                __tmp[ 0] = 0; __tmp[ 1] = 0;
+                __tmp[ 2] = 0; __tmp[ 3] = 0;
+                return;
+        }
+    }
+    __i = __FDSET_LONGS;
+    while (__i) {
+        __i--;
+        *__tmp = 0;
+        __tmp++;
+    }
+}
+
+#endif /* defined(__KERNEL__) */
+
+#endif /* __ASM_AVR32_POSIX_TYPES_H */
diff --git a/include/asm-avr32/processor.h b/include/asm-avr32/processor.h
new file mode 100644 (file)
index 0000000..f691377
--- /dev/null
@@ -0,0 +1,147 @@
+/*
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef __ASM_AVR32_PROCESSOR_H
+#define __ASM_AVR32_PROCESSOR_H
+
+#include <asm/page.h>
+#include <asm/cache.h>
+
+#define TASK_SIZE      0x80000000
+
+#ifndef __ASSEMBLY__
+
+static inline void *current_text_addr(void)
+{
+       register void *pc asm("pc");
+       return pc;
+}
+
+enum arch_type {
+       ARCH_AVR32A,
+       ARCH_AVR32B,
+       ARCH_MAX
+};
+
+enum cpu_type {
+       CPU_MORGAN,
+       CPU_AT32AP,
+       CPU_MAX
+};
+
+enum tlb_config {
+       TLB_NONE,
+       TLB_SPLIT,
+       TLB_UNIFIED,
+       TLB_INVALID
+};
+
+struct avr32_cpuinfo {
+       struct clk *clk;
+       unsigned long loops_per_jiffy;
+       enum arch_type arch_type;
+       enum cpu_type cpu_type;
+       unsigned short arch_revision;
+       unsigned short cpu_revision;
+       enum tlb_config tlb_config;
+
+       struct cache_info icache;
+       struct cache_info dcache;
+};
+
+extern struct avr32_cpuinfo boot_cpu_data;
+
+#ifdef CONFIG_SMP
+extern struct avr32_cpuinfo cpu_data[];
+#define current_cpu_data cpu_data[smp_processor_id()]
+#else
+#define cpu_data (&boot_cpu_data)
+#define current_cpu_data boot_cpu_data
+#endif
+
+/* This decides where the kernel will search for a free chunk of vm
+ * space during mmap's
+ */
+#define TASK_UNMAPPED_BASE     (PAGE_ALIGN(TASK_SIZE / 3))
+
+#define cpu_relax()            barrier()
+#define cpu_sync_pipeline()    asm volatile("sub pc, -2" : : : "memory")
+
+struct cpu_context {
+       unsigned long sr;
+       unsigned long pc;
+       unsigned long ksp;      /* Kernel stack pointer */
+       unsigned long r7;
+       unsigned long r6;
+       unsigned long r5;
+       unsigned long r4;
+       unsigned long r3;
+       unsigned long r2;
+       unsigned long r1;
+       unsigned long r0;
+};
+
+/* This struct contains the CPU context as stored by switch_to() */
+struct thread_struct {
+       struct cpu_context cpu_context;
+       unsigned long single_step_addr;
+       u16 single_step_insn;
+};
+
+#define INIT_THREAD {                                          \
+       .cpu_context = {                                        \
+               .ksp = sizeof(init_stack) + (long)&init_stack,  \
+       },                                                      \
+}
+
+/*
+ * Do necessary setup to start up a newly executed thread.
+ */
+#define start_thread(regs, new_pc, new_sp)      \
+       do {                                     \
+               set_fs(USER_DS);                 \
+               memset(regs, 0, sizeof(*regs));  \
+               regs->sr = MODE_USER;            \
+               regs->pc = new_pc & ~1;          \
+               regs->sp = new_sp;               \
+       } while(0)
+
+struct task_struct;
+
+/* Free all resources held by a thread */
+extern void release_thread(struct task_struct *);
+
+/* Create a kernel thread without removing it from tasklists */
+extern int kernel_thread(int (*fn)(void *), void *arg, unsigned long flags);
+
+/* Prepare to copy thread state - unlazy all lazy status */
+#define prepare_to_copy(tsk) do { } while(0)
+
+/* Return saved PC of a blocked thread */
+#define thread_saved_pc(tsk)    ((tsk)->thread.cpu_context.pc)
+
+struct pt_regs;
+void show_trace(struct task_struct *task, unsigned long *stack,
+               struct pt_regs *regs);
+
+extern unsigned long get_wchan(struct task_struct *p);
+
+#define KSTK_EIP(tsk)  ((tsk)->thread.cpu_context.pc)
+#define KSTK_ESP(tsk)  ((tsk)->thread.cpu_context.ksp)
+
+#define ARCH_HAS_PREFETCH
+
+static inline void prefetch(const void *x)
+{
+       const char *c = x;
+       asm volatile("pref %0" : : "r"(c));
+}
+#define PREFETCH_STRIDE        L1_CACHE_BYTES
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* __ASM_AVR32_PROCESSOR_H */
diff --git a/include/asm-avr32/ptrace.h b/include/asm-avr32/ptrace.h
new file mode 100644 (file)
index 0000000..60f0f19
--- /dev/null
@@ -0,0 +1,154 @@
+/*
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef __ASM_AVR32_PTRACE_H
+#define __ASM_AVR32_PTRACE_H
+
+#define PTRACE_GETREGS         12
+#define PTRACE_SETREGS         13
+
+/*
+ * Status Register bits
+ */
+#define SR_H           0x40000000
+#define SR_R           0x20000000
+#define SR_J           0x10000000
+#define SR_DM          0x08000000
+#define SR_D           0x04000000
+#define MODE_NMI       0x01c00000
+#define MODE_EXCEPTION 0x01800000
+#define MODE_INT3      0x01400000
+#define MODE_INT2      0x01000000
+#define MODE_INT1      0x00c00000
+#define MODE_INT0      0x00800000
+#define MODE_SUPERVISOR        0x00400000
+#define MODE_USER      0x00000000
+#define MODE_MASK      0x01c00000
+#define SR_EM          0x00200000
+#define SR_I3M         0x00100000
+#define SR_I2M         0x00080000
+#define SR_I1M         0x00040000
+#define SR_I0M         0x00020000
+#define SR_GM          0x00010000
+
+#define SR_H_BIT       30
+#define SR_R_BIT       29
+#define SR_J_BIT       28
+#define SR_DM_BIT      27
+#define SR_D_BIT       26
+#define MODE_SHIFT     22
+#define SR_EM_BIT      21
+#define SR_I3M_BIT     20
+#define SR_I2M_BIT     19
+#define SR_I1M_BIT     18
+#define SR_I0M_BIT     17
+#define SR_GM_BIT      16
+
+/* The user-visible part */
+#define SR_L           0x00000020
+#define SR_Q           0x00000010
+#define SR_V           0x00000008
+#define SR_N           0x00000004
+#define SR_Z           0x00000002
+#define SR_C           0x00000001
+
+#define SR_L_BIT       5
+#define SR_Q_BIT       4
+#define SR_V_BIT       3
+#define SR_N_BIT       2
+#define SR_Z_BIT       1
+#define SR_C_BIT       0
+
+/*
+ * The order is defined by the stmts instruction. r0 is stored first,
+ * so it gets the highest address.
+ *
+ * Registers 0-12 are general-purpose registers (r12 is normally used for
+ * the function return value).
+ * Register 13 is the stack pointer
+ * Register 14 is the link register
+ * Register 15 is the program counter (retrieved from the RAR sysreg)
+ */
+#define FRAME_SIZE_FULL 72
+#define REG_R12_ORIG   68
+#define REG_R0         64
+#define REG_R1         60
+#define REG_R2         56
+#define REG_R3         52
+#define REG_R4         48
+#define REG_R5         44
+#define REG_R6         40
+#define REG_R7         36
+#define REG_R8         32
+#define REG_R9         28
+#define REG_R10                24
+#define REG_R11                20
+#define REG_R12                16
+#define REG_SP         12
+#define REG_LR          8
+
+#define FRAME_SIZE_MIN  8
+#define REG_PC          4
+#define REG_SR          0
+
+#ifndef __ASSEMBLY__
+struct pt_regs {
+       /* These are always saved */
+       unsigned long sr;
+       unsigned long pc;
+
+       /* These are sometimes saved */
+       unsigned long lr;
+       unsigned long sp;
+       unsigned long r12;
+       unsigned long r11;
+       unsigned long r10;
+       unsigned long r9;
+       unsigned long r8;
+       unsigned long r7;
+       unsigned long r6;
+       unsigned long r5;
+       unsigned long r4;
+       unsigned long r3;
+       unsigned long r2;
+       unsigned long r1;
+       unsigned long r0;
+
+       /* Only saved on system call */
+       unsigned long r12_orig;
+};
+
+#ifdef __KERNEL__
+# define user_mode(regs) (((regs)->sr & MODE_MASK) == MODE_USER)
+extern void show_regs (struct pt_regs *);
+
+static __inline__ int valid_user_regs(struct pt_regs *regs)
+{
+       /*
+        * Some of the Java bits might be acceptable if/when we
+        * implement some support for that stuff...
+        */
+       if ((regs->sr & 0xffff0000) == 0)
+               return 1;
+
+       /*
+        * Force status register flags to be sane and report this
+        * illegal behaviour...
+        */
+       regs->sr &= 0x0000ffff;
+       return 0;
+}
+
+#define instruction_pointer(regs) ((regs)->pc)
+
+#define profile_pc(regs) instruction_pointer(regs)
+
+#endif /* __KERNEL__ */
+
+#endif /* ! __ASSEMBLY__ */
+
+#endif /* __ASM_AVR32_PTRACE_H */
diff --git a/include/asm-avr32/resource.h b/include/asm-avr32/resource.h
new file mode 100644 (file)
index 0000000..c6dd101
--- /dev/null
@@ -0,0 +1,6 @@
+#ifndef __ASM_AVR32_RESOURCE_H
+#define __ASM_AVR32_RESOURCE_H
+
+#include <asm-generic/resource.h>
+
+#endif /* __ASM_AVR32_RESOURCE_H */
diff --git a/include/asm-avr32/scatterlist.h b/include/asm-avr32/scatterlist.h
new file mode 100644 (file)
index 0000000..bfe7d75
--- /dev/null
@@ -0,0 +1,21 @@
+#ifndef __ASM_AVR32_SCATTERLIST_H
+#define __ASM_AVR32_SCATTERLIST_H
+
+struct scatterlist {
+    struct page                *page;
+    unsigned int       offset;
+    dma_addr_t         dma_address;
+    unsigned int       length;
+};
+
+/* These macros should be used after a pci_map_sg call has been done
+ * to get bus addresses of each of the SG entries and their lengths.
+ * You should only work with the number of sg entries pci_map_sg
+ * returns.
+ */
+#define sg_dma_address(sg)     ((sg)->dma_address)
+#define sg_dma_len(sg)         ((sg)->length)
+
+#define ISA_DMA_THRESHOLD (0xffffffff)
+
+#endif /* __ASM_AVR32_SCATTERLIST_H */
diff --git a/include/asm-avr32/sections.h b/include/asm-avr32/sections.h
new file mode 100644 (file)
index 0000000..aa14252
--- /dev/null
@@ -0,0 +1,6 @@
+#ifndef __ASM_AVR32_SECTIONS_H
+#define __ASM_AVR32_SECTIONS_H
+
+#include <asm-generic/sections.h>
+
+#endif /* __ASM_AVR32_SECTIONS_H */
diff --git a/include/asm-avr32/semaphore.h b/include/asm-avr32/semaphore.h
new file mode 100644 (file)
index 0000000..ef99ddc
--- /dev/null
@@ -0,0 +1,109 @@
+/*
+ * SMP- and interrupt-safe semaphores.
+ *
+ * Copyright (C) 2006 Atmel Corporation
+ *
+ * Based on include/asm-i386/semaphore.h
+ *   Copyright (C) 1996 Linus Torvalds
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef __ASM_AVR32_SEMAPHORE_H
+#define __ASM_AVR32_SEMAPHORE_H
+
+#include <linux/linkage.h>
+
+#include <asm/system.h>
+#include <asm/atomic.h>
+#include <linux/wait.h>
+#include <linux/rwsem.h>
+
+struct semaphore {
+       atomic_t count;
+       int sleepers;
+       wait_queue_head_t wait;
+};
+
+#define __SEMAPHORE_INITIALIZER(name, n)                               \
+{                                                                      \
+       .count          = ATOMIC_INIT(n),                               \
+       .wait           = __WAIT_QUEUE_HEAD_INITIALIZER((name).wait)    \
+}
+
+#define __DECLARE_SEMAPHORE_GENERIC(name,count) \
+       struct semaphore name = __SEMAPHORE_INITIALIZER(name,count)
+
+#define DECLARE_MUTEX(name) __DECLARE_SEMAPHORE_GENERIC(name,1)
+#define DECLARE_MUTEX_LOCKED(name) __DECLARE_SEMAPHORE_GENERIC(name,0)
+
+static inline void sema_init (struct semaphore *sem, int val)
+{
+       atomic_set(&sem->count, val);
+       sem->sleepers = 0;
+       init_waitqueue_head(&sem->wait);
+}
+
+static inline void init_MUTEX (struct semaphore *sem)
+{
+       sema_init(sem, 1);
+}
+
+static inline void init_MUTEX_LOCKED (struct semaphore *sem)
+{
+       sema_init(sem, 0);
+}
+
+void __down(struct semaphore * sem);
+int  __down_interruptible(struct semaphore * sem);
+void __up(struct semaphore * sem);
+
+/*
+ * This is ugly, but we want the default case to fall through.
+ * "__down_failed" is a special asm handler that calls the C
+ * routine that actually waits. See arch/i386/kernel/semaphore.c
+ */
+static inline void down(struct semaphore * sem)
+{
+       might_sleep();
+       if (unlikely(atomic_dec_return (&sem->count) < 0))
+               __down (sem);
+}
+
+/*
+ * Interruptible try to acquire a semaphore.  If we obtained
+ * it, return zero.  If we were interrupted, returns -EINTR
+ */
+static inline int down_interruptible(struct semaphore * sem)
+{
+       int ret = 0;
+
+       might_sleep();
+       if (unlikely(atomic_dec_return (&sem->count) < 0))
+               ret = __down_interruptible (sem);
+       return ret;
+}
+
+/*
+ * Non-blockingly attempt to down() a semaphore.
+ * Returns zero if we acquired it
+ */
+static inline int down_trylock(struct semaphore * sem)
+{
+       return atomic_dec_if_positive(&sem->count) < 0;
+}
+
+/*
+ * Note! This is subtle. We jump to wake people up only if
+ * the semaphore was negative (== somebody was waiting on it).
+ * The default case (no contention) will result in NO
+ * jumps for both down() and up().
+ */
+static inline void up(struct semaphore * sem)
+{
+       if (unlikely(atomic_inc_return (&sem->count) <= 0))
+               __up (sem);
+}
+
+#endif /*__ASM_AVR32_SEMAPHORE_H */
diff --git a/include/asm-avr32/sembuf.h b/include/asm-avr32/sembuf.h
new file mode 100644 (file)
index 0000000..e472216
--- /dev/null
@@ -0,0 +1,25 @@
+#ifndef __ASM_AVR32_SEMBUF_H
+#define __ASM_AVR32_SEMBUF_H
+
+/*
+* The semid64_ds structure for AVR32 architecture.
+ * Note extra padding because this structure is passed back and forth
+ * between kernel and user space.
+ *
+ * Pad space is left for:
+ * - 64-bit time_t to solve y2038 problem
+ * - 2 miscellaneous 32-bit values
+ */
+
+struct semid64_ds {
+        struct ipc64_perm sem_perm;             /* permissions .. see ipc.h */
+        __kernel_time_t sem_otime;              /* last semop time */
+        unsigned long   __unused1;
+        __kernel_time_t sem_ctime;              /* last change time */
+        unsigned long   __unused2;
+        unsigned long   sem_nsems;              /* no. of semaphores in array */
+        unsigned long   __unused3;
+        unsigned long   __unused4;
+};
+
+#endif /* __ASM_AVR32_SEMBUF_H */
diff --git a/include/asm-avr32/setup.h b/include/asm-avr32/setup.h
new file mode 100644 (file)
index 0000000..10193da
--- /dev/null
@@ -0,0 +1,141 @@
+/*
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * Based on linux/include/asm-arm/setup.h
+ *   Copyright (C) 1997-1999 Russel King
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef __ASM_AVR32_SETUP_H__
+#define __ASM_AVR32_SETUP_H__
+
+#define COMMAND_LINE_SIZE 256
+
+/* Magic number indicating that a tag table is present */
+#define ATAG_MAGIC     0xa2a25441
+
+#ifndef __ASSEMBLY__
+
+/*
+ * Generic memory range, used by several tags.
+ *
+ *   addr is always physical.
+ *   size is measured in bytes.
+ *   next is for use by the OS, e.g. for grouping regions into
+ *        linked lists.
+ */
+struct tag_mem_range {
+       u32                     addr;
+       u32                     size;
+       struct tag_mem_range *  next;
+};
+
+/* The list ends with an ATAG_NONE node. */
+#define ATAG_NONE      0x00000000
+
+struct tag_header {
+       u32 size;
+       u32 tag;
+};
+
+/* The list must start with an ATAG_CORE node */
+#define ATAG_CORE      0x54410001
+
+struct tag_core {
+       u32 flags;
+       u32 pagesize;
+       u32 rootdev;
+};
+
+/* it is allowed to have multiple ATAG_MEM nodes */
+#define ATAG_MEM       0x54410002
+/* ATAG_MEM uses tag_mem_range */
+
+/* command line: \0 terminated string */
+#define ATAG_CMDLINE   0x54410003
+
+struct tag_cmdline {
+       char    cmdline[1];     /* this is the minimum size */
+};
+
+/* Ramdisk image (may be compressed) */
+#define ATAG_RDIMG     0x54410004
+/* ATAG_RDIMG uses tag_mem_range */
+
+/* Information about various clocks present in the system */
+#define ATAG_CLOCK     0x54410005
+
+struct tag_clock {
+       u32     clock_id;       /* Which clock are we talking about? */
+       u32     clock_flags;    /* Special features */
+       u64     clock_hz;       /* Clock speed in Hz */
+};
+
+/* The clock types we know about */
+#define CLOCK_BOOTCPU  0
+
+/* Memory reserved for the system (e.g. the bootloader) */
+#define ATAG_RSVD_MEM  0x54410006
+/* ATAG_RSVD_MEM uses tag_mem_range */
+
+/* Ethernet information */
+
+#define ATAG_ETHERNET  0x54410007
+
+struct tag_ethernet {
+       u8      mac_index;
+       u8      mii_phy_addr;
+       u8      hw_address[6];
+};
+
+#define ETH_INVALID_PHY        0xff
+
+struct tag {
+       struct tag_header hdr;
+       union {
+               struct tag_core core;
+               struct tag_mem_range mem_range;
+               struct tag_cmdline cmdline;
+               struct tag_clock clock;
+               struct tag_ethernet ethernet;
+       } u;
+};
+
+struct tagtable {
+       u32     tag;
+       int     (*parse)(struct tag *);
+};
+
+#define __tag __attribute_used__ __attribute__((__section__(".taglist")))
+#define __tagtable(tag, fn)                                            \
+       static struct tagtable __tagtable_##fn __tag = { tag, fn }
+
+#define tag_member_present(tag,member)                                 \
+       ((unsigned long)(&((struct tag *)0L)->member + 1)               \
+        <= (tag)->hdr.size * 4)
+
+#define tag_next(t)    ((struct tag *)((u32 *)(t) + (t)->hdr.size))
+#define tag_size(type) ((sizeof(struct tag_header) + sizeof(struct type)) >> 2)
+
+#define for_each_tag(t,base)                                           \
+       for (t = base; t->hdr.size; t = tag_next(t))
+
+extern struct tag_mem_range *mem_phys;
+extern struct tag_mem_range *mem_reserved;
+extern struct tag_mem_range *mem_ramdisk;
+
+extern struct tag *bootloader_tags;
+
+extern void setup_bootmem(void);
+extern void setup_processor(void);
+extern void board_setup_fbmem(unsigned long fbmem_start,
+                             unsigned long fbmem_size);
+
+/* Chip-specific hook to enable the use of SDRAM */
+void chip_enable_sdram(void);
+
+#endif /* !__ASSEMBLY__ */
+
+#endif /* __ASM_AVR32_SETUP_H__ */
diff --git a/include/asm-avr32/shmbuf.h b/include/asm-avr32/shmbuf.h
new file mode 100644 (file)
index 0000000..c62fba4
--- /dev/null
@@ -0,0 +1,42 @@
+#ifndef __ASM_AVR32_SHMBUF_H
+#define __ASM_AVR32_SHMBUF_H
+
+/*
+ * The shmid64_ds structure for i386 architecture.
+ * Note extra padding because this structure is passed back and forth
+ * between kernel and user space.
+ *
+ * Pad space is left for:
+ * - 64-bit time_t to solve y2038 problem
+ * - 2 miscellaneous 32-bit values
+ */
+
+struct shmid64_ds {
+       struct ipc64_perm       shm_perm;       /* operation perms */
+       size_t                  shm_segsz;      /* size of segment (bytes) */
+       __kernel_time_t         shm_atime;      /* last attach time */
+       unsigned long           __unused1;
+       __kernel_time_t         shm_dtime;      /* last detach time */
+       unsigned long           __unused2;
+       __kernel_time_t         shm_ctime;      /* last change time */
+       unsigned long           __unused3;
+       __kernel_pid_t          shm_cpid;       /* pid of creator */
+       __kernel_pid_t          shm_lpid;       /* pid of last operator */
+       unsigned long           shm_nattch;     /* no. of current attaches */
+       unsigned long           __unused4;
+       unsigned long           __unused5;
+};
+
+struct shminfo64 {
+       unsigned long   shmmax;
+       unsigned long   shmmin;
+       unsigned long   shmmni;
+       unsigned long   shmseg;
+       unsigned long   shmall;
+       unsigned long   __unused1;
+       unsigned long   __unused2;
+       unsigned long   __unused3;
+       unsigned long   __unused4;
+};
+
+#endif /* __ASM_AVR32_SHMBUF_H */
diff --git a/include/asm-avr32/shmparam.h b/include/asm-avr32/shmparam.h
new file mode 100644 (file)
index 0000000..3681266
--- /dev/null
@@ -0,0 +1,6 @@
+#ifndef __ASM_AVR32_SHMPARAM_H
+#define __ASM_AVR32_SHMPARAM_H
+
+#define SHMLBA PAGE_SIZE       /* attach addr a multiple of this */
+
+#endif /* __ASM_AVR32_SHMPARAM_H */
diff --git a/include/asm-avr32/sigcontext.h b/include/asm-avr32/sigcontext.h
new file mode 100644 (file)
index 0000000..e04062b
--- /dev/null
@@ -0,0 +1,34 @@
+/*
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef __ASM_AVR32_SIGCONTEXT_H
+#define __ASM_AVR32_SIGCONTEXT_H
+
+struct sigcontext {
+       unsigned long   oldmask;
+
+       /* CPU registers */
+       unsigned long   sr;
+       unsigned long   pc;
+       unsigned long   lr;
+       unsigned long   sp;
+       unsigned long   r12;
+       unsigned long   r11;
+       unsigned long   r10;
+       unsigned long   r9;
+       unsigned long   r8;
+       unsigned long   r7;
+       unsigned long   r6;
+       unsigned long   r5;
+       unsigned long   r4;
+       unsigned long   r3;
+       unsigned long   r2;
+       unsigned long   r1;
+       unsigned long   r0;
+};
+
+#endif /* __ASM_AVR32_SIGCONTEXT_H */
diff --git a/include/asm-avr32/siginfo.h b/include/asm-avr32/siginfo.h
new file mode 100644 (file)
index 0000000..5ee93f4
--- /dev/null
@@ -0,0 +1,6 @@
+#ifndef _AVR32_SIGINFO_H
+#define _AVR32_SIGINFO_H
+
+#include <asm-generic/siginfo.h>
+
+#endif
diff --git a/include/asm-avr32/signal.h b/include/asm-avr32/signal.h
new file mode 100644 (file)
index 0000000..caffefe
--- /dev/null
@@ -0,0 +1,168 @@
+/*
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef __ASM_AVR32_SIGNAL_H
+#define __ASM_AVR32_SIGNAL_H
+
+#include <linux/types.h>
+
+/* Avoid too many header ordering problems.  */
+struct siginfo;
+
+#ifdef __KERNEL__
+/* Most things should be clean enough to redefine this at will, if care
+   is taken to make libc match.  */
+
+#define _NSIG          64
+#define _NSIG_BPW      32
+#define _NSIG_WORDS    (_NSIG / _NSIG_BPW)
+
+typedef unsigned long old_sigset_t;            /* at least 32 bits */
+
+typedef struct {
+       unsigned long sig[_NSIG_WORDS];
+} sigset_t;
+
+#else
+/* Here we must cater to libcs that poke about in kernel headers.  */
+
+#define NSIG           32
+typedef unsigned long sigset_t;
+
+#endif /* __KERNEL__ */
+
+#define SIGHUP          1
+#define SIGINT          2
+#define SIGQUIT                 3
+#define SIGILL          4
+#define SIGTRAP                 5
+#define SIGABRT                 6
+#define SIGIOT          6
+#define SIGBUS          7
+#define SIGFPE          8
+#define SIGKILL                 9
+#define SIGUSR1                10
+#define SIGSEGV                11
+#define SIGUSR2                12
+#define SIGPIPE                13
+#define SIGALRM                14
+#define SIGTERM                15
+#define SIGSTKFLT      16
+#define SIGCHLD                17
+#define SIGCONT                18
+#define SIGSTOP                19
+#define SIGTSTP                20
+#define SIGTTIN                21
+#define SIGTTOU                22
+#define SIGURG         23
+#define SIGXCPU                24
+#define SIGXFSZ                25
+#define SIGVTALRM      26
+#define SIGPROF                27
+#define SIGWINCH       28
+#define SIGIO          29
+#define SIGPOLL                SIGIO
+/*
+#define SIGLOST                29
+*/
+#define SIGPWR         30
+#define SIGSYS         31
+#define        SIGUNUSED       31
+
+/* These should not be considered constants from userland.  */
+#define SIGRTMIN       32
+#define SIGRTMAX       (_NSIG-1)
+
+/*
+ * SA_FLAGS values:
+ *
+ * SA_NOCLDSTOP                flag to turn off SIGCHLD when children stop.
+ * SA_NOCLDWAIT                flag on SIGCHLD to inhibit zombies.
+ * SA_SIGINFO          deliver the signal with SIGINFO structs
+ * SA_ONSTACK          indicates that a registered stack_t will be used.
+ * SA_RESTART          flag to get restarting signals (which were the default long ago)
+ * SA_NODEFER          prevents the current signal from being masked in the handler.
+ * SA_RESETHAND                clears the handler when the signal is delivered.
+ *
+ * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
+ * Unix names RESETHAND and NODEFER respectively.
+ */
+#define SA_NOCLDSTOP   0x00000001
+#define SA_NOCLDWAIT   0x00000002
+#define SA_SIGINFO     0x00000004
+#define SA_RESTORER    0x04000000
+#define SA_ONSTACK     0x08000000
+#define SA_RESTART     0x10000000
+#define SA_NODEFER     0x40000000
+#define SA_RESETHAND   0x80000000
+
+#define SA_NOMASK      SA_NODEFER
+#define SA_ONESHOT     SA_RESETHAND
+
+/*
+ * sigaltstack controls
+ */
+#define SS_ONSTACK     1
+#define SS_DISABLE     2
+
+#define MINSIGSTKSZ    2048
+#define SIGSTKSZ       8192
+
+#include <asm-generic/signal.h>
+
+#ifdef __KERNEL__
+struct old_sigaction {
+       __sighandler_t sa_handler;
+       old_sigset_t sa_mask;
+       unsigned long sa_flags;
+       __sigrestore_t sa_restorer;
+};
+
+struct sigaction {
+       __sighandler_t sa_handler;
+       unsigned long sa_flags;
+       __sigrestore_t sa_restorer;
+       sigset_t sa_mask;               /* mask last for extensibility */
+};
+
+struct k_sigaction {
+       struct sigaction sa;
+};
+#else
+/* Here we must cater to libcs that poke about in kernel headers.  */
+
+struct sigaction {
+       union {
+               __sighandler_t _sa_handler;
+               void (*_sa_sigaction)(int, struct siginfo *, void *);
+       } _u;
+       sigset_t sa_mask;
+       unsigned long sa_flags;
+       void (*sa_restorer)(void);
+};
+
+#define sa_handler     _u._sa_handler
+#define sa_sigaction   _u._sa_sigaction
+
+#endif /* __KERNEL__ */
+
+typedef struct sigaltstack {
+       void __user *ss_sp;
+       int ss_flags;
+       size_t ss_size;
+} stack_t;
+
+#ifdef __KERNEL__
+
+#include <asm/sigcontext.h>
+#undef __HAVE_ARCH_SIG_BITOPS
+
+#define ptrace_signal_deliver(regs, cookie) do { } while (0)
+
+#endif /* __KERNEL__ */
+
+#endif
diff --git a/include/asm-avr32/socket.h b/include/asm-avr32/socket.h
new file mode 100644 (file)
index 0000000..543229d
--- /dev/null
@@ -0,0 +1,53 @@
+#ifndef __ASM_AVR32_SOCKET_H
+#define __ASM_AVR32_SOCKET_H
+
+#include <asm/sockios.h>
+
+/* For setsockopt(2) */
+#define SOL_SOCKET     1
+
+#define SO_DEBUG       1
+#define SO_REUSEADDR   2
+#define SO_TYPE                3
+#define SO_ERROR       4
+#define SO_DONTROUTE   5
+#define SO_BROADCAST   6
+#define SO_SNDBUF      7
+#define SO_RCVBUF      8
+#define SO_SNDBUFFORCE 32
+#define SO_RCVBUFFORCE 33
+#define SO_KEEPALIVE   9
+#define SO_OOBINLINE   10
+#define SO_NO_CHECK    11
+#define SO_PRIORITY    12
+#define SO_LINGER      13
+#define SO_BSDCOMPAT   14
+/* To add :#define SO_REUSEPORT 15 */
+#define SO_PASSCRED    16
+#define SO_PEERCRED    17
+#define SO_RCVLOWAT    18
+#define SO_SNDLOWAT    19
+#define SO_RCVTIMEO    20
+#define SO_SNDTIMEO    21
+
+/* Security levels - as per NRL IPv6 - don't actually do anything */
+#define SO_SECURITY_AUTHENTICATION             22
+#define SO_SECURITY_ENCRYPTION_TRANSPORT       23
+#define SO_SECURITY_ENCRYPTION_NETWORK         24
+
+#define SO_BINDTODEVICE        25
+
+/* Socket filtering */
+#define SO_ATTACH_FILTER        26
+#define SO_DETACH_FILTER        27
+
+#define SO_PEERNAME            28
+#define SO_TIMESTAMP           29
+#define SCM_TIMESTAMP          SO_TIMESTAMP
+
+#define SO_ACCEPTCONN          30
+
+#define SO_PEERSEC             31
+#define SO_PASSSEC             34
+
+#endif /* __ASM_AVR32_SOCKET_H */
diff --git a/include/asm-avr32/sockios.h b/include/asm-avr32/sockios.h
new file mode 100644 (file)
index 0000000..84f3d65
--- /dev/null
@@ -0,0 +1,12 @@
+#ifndef __ASM_AVR32_SOCKIOS_H
+#define __ASM_AVR32_SOCKIOS_H
+
+/* Socket-level I/O control calls. */
+#define FIOSETOWN      0x8901
+#define SIOCSPGRP      0x8902
+#define FIOGETOWN      0x8903
+#define SIOCGPGRP      0x8904
+#define SIOCATMARK     0x8905
+#define SIOCGSTAMP     0x8906          /* Get stamp */
+
+#endif /* __ASM_AVR32_SOCKIOS_H */
diff --git a/include/asm-avr32/stat.h b/include/asm-avr32/stat.h
new file mode 100644 (file)
index 0000000..e72881e
--- /dev/null
@@ -0,0 +1,79 @@
+/*
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef __ASM_AVR32_STAT_H
+#define __ASM_AVR32_STAT_H
+
+struct __old_kernel_stat {
+        unsigned short st_dev;
+        unsigned short st_ino;
+        unsigned short st_mode;
+        unsigned short st_nlink;
+        unsigned short st_uid;
+        unsigned short st_gid;
+        unsigned short st_rdev;
+        unsigned long  st_size;
+        unsigned long  st_atime;
+        unsigned long  st_mtime;
+        unsigned long  st_ctime;
+};
+
+struct stat {
+        unsigned long st_dev;
+        unsigned long st_ino;
+        unsigned short st_mode;
+        unsigned short st_nlink;
+        unsigned short st_uid;
+        unsigned short st_gid;
+        unsigned long  st_rdev;
+        unsigned long  st_size;
+        unsigned long  st_blksize;
+        unsigned long  st_blocks;
+        unsigned long  st_atime;
+        unsigned long  st_atime_nsec;
+        unsigned long  st_mtime;
+        unsigned long  st_mtime_nsec;
+        unsigned long  st_ctime;
+        unsigned long  st_ctime_nsec;
+        unsigned long  __unused4;
+        unsigned long  __unused5;
+};
+
+#define STAT_HAVE_NSEC 1
+
+struct stat64 {
+       unsigned long long st_dev;
+
+       unsigned long long st_ino;
+       unsigned int    st_mode;
+       unsigned int    st_nlink;
+
+       unsigned long   st_uid;
+       unsigned long   st_gid;
+
+       unsigned long long st_rdev;
+
+       long long       st_size;
+       unsigned long   __pad1;         /* align 64-bit st_blocks */
+       unsigned long   st_blksize;
+
+       unsigned long long st_blocks;   /* Number 512-byte blocks allocated. */
+
+       unsigned long   st_atime;
+       unsigned long   st_atime_nsec;
+
+       unsigned long   st_mtime;
+       unsigned long   st_mtime_nsec;
+
+       unsigned long   st_ctime;
+       unsigned long   st_ctime_nsec;
+
+       unsigned long   __unused1;
+       unsigned long   __unused2;
+};
+
+#endif /* __ASM_AVR32_STAT_H */
diff --git a/include/asm-avr32/statfs.h b/include/asm-avr32/statfs.h
new file mode 100644 (file)
index 0000000..2961bd1
--- /dev/null
@@ -0,0 +1,6 @@
+#ifndef __ASM_AVR32_STATFS_H
+#define __ASM_AVR32_STATFS_H
+
+#include <asm-generic/statfs.h>
+
+#endif /* __ASM_AVR32_STATFS_H */
diff --git a/include/asm-avr32/string.h b/include/asm-avr32/string.h
new file mode 100644 (file)
index 0000000..c91a623
--- /dev/null
@@ -0,0 +1,17 @@
+/*
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef __ASM_AVR32_STRING_H
+#define __ASM_AVR32_STRING_H
+
+#define __HAVE_ARCH_MEMSET
+extern void *memset(void *b, int c, size_t len);
+
+#define __HAVE_ARCH_MEMCPY
+extern void *memcpy(void *to, const void *from, size_t len);
+
+#endif /* __ASM_AVR32_STRING_H */
diff --git a/include/asm-avr32/sysreg.h b/include/asm-avr32/sysreg.h
new file mode 100644 (file)
index 0000000..f91975f
--- /dev/null
@@ -0,0 +1,332 @@
+/*
+ * AVR32 System Registers
+ *
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef __ASM_AVR32_SYSREG_H__
+#define __ASM_AVR32_SYSREG_H__
+
+/* sysreg register offsets */
+#define SYSREG_SR                               0x0000
+#define SYSREG_EVBA                             0x0004
+#define SYSREG_ACBA                             0x0008
+#define SYSREG_CPUCR                            0x000c
+#define SYSREG_ECR                              0x0010
+#define SYSREG_RSR_SUP                          0x0014
+#define SYSREG_RSR_INT0                         0x0018
+#define SYSREG_RSR_INT1                         0x001c
+#define SYSREG_RSR_INT2                         0x0020
+#define SYSREG_RSR_INT3                         0x0024
+#define SYSREG_RSR_EX                           0x0028
+#define SYSREG_RSR_NMI                          0x002c
+#define SYSREG_RSR_DBG                          0x0030
+#define SYSREG_RAR_SUP                          0x0034
+#define SYSREG_RAR_INT0                         0x0038
+#define SYSREG_RAR_INT1                         0x003c
+#define SYSREG_RAR_INT2                         0x0040
+#define SYSREG_RAR_INT3                         0x0044
+#define SYSREG_RAR_EX                           0x0048
+#define SYSREG_RAR_NMI                          0x004c
+#define SYSREG_RAR_DBG                          0x0050
+#define SYSREG_JECR                             0x0054
+#define SYSREG_JOSP                             0x0058
+#define SYSREG_JAVA_LV0                         0x005c
+#define SYSREG_JAVA_LV1                         0x0060
+#define SYSREG_JAVA_LV2                         0x0064
+#define SYSREG_JAVA_LV3                         0x0068
+#define SYSREG_JAVA_LV4                         0x006c
+#define SYSREG_JAVA_LV5                         0x0070
+#define SYSREG_JAVA_LV6                         0x0074
+#define SYSREG_JAVA_LV7                         0x0078
+#define SYSREG_JTBA                             0x007c
+#define SYSREG_JBCR                             0x0080
+#define SYSREG_CONFIG0                          0x0100
+#define SYSREG_CONFIG1                          0x0104
+#define SYSREG_COUNT                            0x0108
+#define SYSREG_COMPARE                          0x010c
+#define SYSREG_TLBEHI                           0x0110
+#define SYSREG_TLBELO                           0x0114
+#define SYSREG_PTBR                             0x0118
+#define SYSREG_TLBEAR                           0x011c
+#define SYSREG_MMUCR                            0x0120
+#define SYSREG_TLBARLO                          0x0124
+#define SYSREG_TLBARHI                          0x0128
+#define SYSREG_PCCNT                            0x012c
+#define SYSREG_PCNT0                            0x0130
+#define SYSREG_PCNT1                            0x0134
+#define SYSREG_PCCR                             0x0138
+#define SYSREG_BEAR                             0x013c
+
+/* Bitfields in SR */
+#define SYSREG_SR_C_OFFSET                      0
+#define SYSREG_SR_C_SIZE                        1
+#define SYSREG_Z_OFFSET                         1
+#define SYSREG_Z_SIZE                           1
+#define SYSREG_SR_N_OFFSET                      2
+#define SYSREG_SR_N_SIZE                        1
+#define SYSREG_SR_V_OFFSET                      3
+#define SYSREG_SR_V_SIZE                        1
+#define SYSREG_Q_OFFSET                         4
+#define SYSREG_Q_SIZE                           1
+#define SYSREG_GM_OFFSET                        16
+#define SYSREG_GM_SIZE                          1
+#define SYSREG_I0M_OFFSET                       17
+#define SYSREG_I0M_SIZE                         1
+#define SYSREG_I1M_OFFSET                       18
+#define SYSREG_I1M_SIZE                         1
+#define SYSREG_I2M_OFFSET                       19
+#define SYSREG_I2M_SIZE                         1
+#define SYSREG_I3M_OFFSET                       20
+#define SYSREG_I3M_SIZE                         1
+#define SYSREG_EM_OFFSET                        21
+#define SYSREG_EM_SIZE                          1
+#define SYSREG_M0_OFFSET                        22
+#define SYSREG_M0_SIZE                          1
+#define SYSREG_M1_OFFSET                        23
+#define SYSREG_M1_SIZE                          1
+#define SYSREG_M2_OFFSET                        24
+#define SYSREG_M2_SIZE                          1
+#define SYSREG_SR_D_OFFSET                      26
+#define SYSREG_SR_D_SIZE                        1
+#define SYSREG_DM_OFFSET                        27
+#define SYSREG_DM_SIZE                          1
+#define SYSREG_SR_J_OFFSET                      28
+#define SYSREG_SR_J_SIZE                        1
+#define SYSREG_R_OFFSET                         29
+#define SYSREG_R_SIZE                           1
+#define SYSREG_H_OFFSET                         30
+#define SYSREG_H_SIZE                           1
+
+/* Bitfields in EVBA */
+
+/* Bitfields in ACBA */
+
+/* Bitfields in CPUCR */
+#define SYSREG_BI_OFFSET                        0
+#define SYSREG_BI_SIZE                          1
+#define SYSREG_BE_OFFSET                        1
+#define SYSREG_BE_SIZE                          1
+#define SYSREG_FE_OFFSET                        2
+#define SYSREG_FE_SIZE                          1
+#define SYSREG_RE_OFFSET                        3
+#define SYSREG_RE_SIZE                          1
+#define SYSREG_IBE_OFFSET                       4
+#define SYSREG_IBE_SIZE                         1
+#define SYSREG_IEE_OFFSET                       5
+#define SYSREG_IEE_SIZE                         1
+
+/* Bitfields in ECR */
+#define SYSREG_ECR_OFFSET                       0
+#define SYSREG_ECR_SIZE                         32
+
+/* Bitfields in RSR_SUP */
+
+/* Bitfields in RSR_INT0 */
+
+/* Bitfields in RSR_INT1 */
+
+/* Bitfields in RSR_INT2 */
+
+/* Bitfields in RSR_INT3 */
+
+/* Bitfields in RSR_EX */
+
+/* Bitfields in RSR_NMI */
+
+/* Bitfields in RSR_DBG */
+
+/* Bitfields in RAR_SUP */
+
+/* Bitfields in RAR_INT0 */
+
+/* Bitfields in RAR_INT1 */
+
+/* Bitfields in RAR_INT2 */
+
+/* Bitfields in RAR_INT3 */
+
+/* Bitfields in RAR_EX */
+
+/* Bitfields in RAR_NMI */
+
+/* Bitfields in RAR_DBG */
+
+/* Bitfields in JECR */
+
+/* Bitfields in JOSP */
+
+/* Bitfields in JAVA_LV0 */
+
+/* Bitfields in JAVA_LV1 */
+
+/* Bitfields in JAVA_LV2 */
+
+/* Bitfields in JAVA_LV3 */
+
+/* Bitfields in JAVA_LV4 */
+
+/* Bitfields in JAVA_LV5 */
+
+/* Bitfields in JAVA_LV6 */
+
+/* Bitfields in JAVA_LV7 */
+
+/* Bitfields in JTBA */
+
+/* Bitfields in JBCR */
+
+/* Bitfields in CONFIG0 */
+#define SYSREG_CONFIG0_D_OFFSET                 1
+#define SYSREG_CONFIG0_D_SIZE                   1
+#define SYSREG_CONFIG0_S_OFFSET                 2
+#define SYSREG_CONFIG0_S_SIZE                   1
+#define SYSREG_O_OFFSET                         3
+#define SYSREG_O_SIZE                           1
+#define SYSREG_P_OFFSET                         4
+#define SYSREG_P_SIZE                           1
+#define SYSREG_CONFIG0_J_OFFSET                 5
+#define SYSREG_CONFIG0_J_SIZE                   1
+#define SYSREG_F_OFFSET                         6
+#define SYSREG_F_SIZE                           1
+#define SYSREG_MMUT_OFFSET                      7
+#define SYSREG_MMUT_SIZE                        3
+#define SYSREG_AR_OFFSET                        10
+#define SYSREG_AR_SIZE                          3
+#define SYSREG_AT_OFFSET                        13
+#define SYSREG_AT_SIZE                          3
+#define SYSREG_PROCESSORREVISION_OFFSET         16
+#define SYSREG_PROCESSORREVISION_SIZE           8
+#define SYSREG_PROCESSORID_OFFSET               24
+#define SYSREG_PROCESSORID_SIZE                 8
+
+/* Bitfields in CONFIG1 */
+#define SYSREG_DASS_OFFSET                      0
+#define SYSREG_DASS_SIZE                        3
+#define SYSREG_DLSZ_OFFSET                      3
+#define SYSREG_DLSZ_SIZE                        3
+#define SYSREG_DSET_OFFSET                      6
+#define SYSREG_DSET_SIZE                        4
+#define SYSREG_IASS_OFFSET                      10
+#define SYSREG_IASS_SIZE                        2
+#define SYSREG_ILSZ_OFFSET                      13
+#define SYSREG_ILSZ_SIZE                        3
+#define SYSREG_ISET_OFFSET                      16
+#define SYSREG_ISET_SIZE                        4
+#define SYSREG_DMMUSZ_OFFSET                    20
+#define SYSREG_DMMUSZ_SIZE                      6
+#define SYSREG_IMMUSZ_OFFSET                    26
+#define SYSREG_IMMUSZ_SIZE                      6
+
+/* Bitfields in COUNT */
+
+/* Bitfields in COMPARE */
+
+/* Bitfields in TLBEHI */
+#define SYSREG_ASID_OFFSET                      0
+#define SYSREG_ASID_SIZE                        8
+#define SYSREG_TLBEHI_I_OFFSET                  8
+#define SYSREG_TLBEHI_I_SIZE                    1
+#define SYSREG_TLBEHI_V_OFFSET                  9
+#define SYSREG_TLBEHI_V_SIZE                    1
+#define SYSREG_VPN_OFFSET                       10
+#define SYSREG_VPN_SIZE                         22
+
+/* Bitfields in TLBELO */
+#define SYSREG_W_OFFSET                         0
+#define SYSREG_W_SIZE                           1
+#define SYSREG_TLBELO_D_OFFSET                  1
+#define SYSREG_TLBELO_D_SIZE                    1
+#define SYSREG_SZ_OFFSET                        2
+#define SYSREG_SZ_SIZE                          2
+#define SYSREG_AP_OFFSET                        4
+#define SYSREG_AP_SIZE                          3
+#define SYSREG_B_OFFSET                         7
+#define SYSREG_B_SIZE                           1
+#define SYSREG_G_OFFSET                         8
+#define SYSREG_G_SIZE                           1
+#define SYSREG_TLBELO_C_OFFSET                  9
+#define SYSREG_TLBELO_C_SIZE                    1
+#define SYSREG_PFN_OFFSET                       10
+#define SYSREG_PFN_SIZE                         22
+
+/* Bitfields in PTBR */
+
+/* Bitfields in TLBEAR */
+
+/* Bitfields in MMUCR */
+#define SYSREG_E_OFFSET                         0
+#define SYSREG_E_SIZE                           1
+#define SYSREG_M_OFFSET                         1
+#define SYSREG_M_SIZE                           1
+#define SYSREG_MMUCR_I_OFFSET                   2
+#define SYSREG_MMUCR_I_SIZE                     1
+#define SYSREG_MMUCR_N_OFFSET                   3
+#define SYSREG_MMUCR_N_SIZE                     1
+#define SYSREG_MMUCR_S_OFFSET                   4
+#define SYSREG_MMUCR_S_SIZE                     1
+#define SYSREG_DLA_OFFSET                       8
+#define SYSREG_DLA_SIZE                         6
+#define SYSREG_DRP_OFFSET                       14
+#define SYSREG_DRP_SIZE                         6
+#define SYSREG_ILA_OFFSET                       20
+#define SYSREG_ILA_SIZE                         6
+#define SYSREG_IRP_OFFSET                       26
+#define SYSREG_IRP_SIZE                         6
+
+/* Bitfields in TLBARLO */
+
+/* Bitfields in TLBARHI */
+
+/* Bitfields in PCCNT */
+
+/* Bitfields in PCNT0 */
+
+/* Bitfields in PCNT1 */
+
+/* Bitfields in PCCR */
+
+/* Bitfields in BEAR */
+
+/* Constants for ECR */
+#define ECR_UNRECOVERABLE                       0
+#define ECR_TLB_MULTIPLE                        1
+#define ECR_BUS_ERROR_WRITE                     2
+#define ECR_BUS_ERROR_READ                      3
+#define ECR_NMI                                 4
+#define ECR_ADDR_ALIGN_X                        5
+#define ECR_PROTECTION_X                        6
+#define ECR_DEBUG                               7
+#define ECR_ILLEGAL_OPCODE                      8
+#define ECR_UNIMPL_INSTRUCTION                  9
+#define ECR_PRIVILEGE_VIOLATION                 10
+#define ECR_FPE                                 11
+#define ECR_COPROC_ABSENT                       12
+#define ECR_ADDR_ALIGN_R                        13
+#define ECR_ADDR_ALIGN_W                        14
+#define ECR_PROTECTION_R                        15
+#define ECR_PROTECTION_W                        16
+#define ECR_DTLB_MODIFIED                       17
+#define ECR_TLB_MISS_X                          20
+#define ECR_TLB_MISS_R                          24
+#define ECR_TLB_MISS_W                          28
+
+/* Bit manipulation macros */
+#define SYSREG_BIT(name)                        (1 << SYSREG_##name##_OFFSET)
+#define SYSREG_BF(name,value)                   (((value) & ((1 << SYSREG_##name##_SIZE) - 1)) << SYSREG_##name##_OFFSET)
+#define SYSREG_BFEXT(name,value)                (((value) >> SYSREG_##name##_OFFSET) & ((1 << SYSREG_##name##_SIZE) - 1))
+#define SYSREG_BFINS(name,value,old)            (((old) & ~(((1 << SYSREG_##name##_SIZE) - 1) << SYSREG_##name##_OFFSET)) | SYSREG_BF(name,value))
+
+#ifdef __CHECKER__
+extern unsigned long __builtin_mfsr(unsigned long reg);
+extern void __builtin_mtsr(unsigned long reg, unsigned long value);
+#endif
+
+/* Register access macros */
+#define sysreg_read(reg)                        __builtin_mfsr(SYSREG_##reg)
+#define sysreg_write(reg, value)                __builtin_mtsr(SYSREG_##reg, value)
+
+#endif /* __ASM_AVR32_SYSREG_H__ */
diff --git a/include/asm-avr32/system.h b/include/asm-avr32/system.h
new file mode 100644 (file)
index 0000000..ac59605
--- /dev/null
@@ -0,0 +1,155 @@
+/*
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef __ASM_AVR32_SYSTEM_H
+#define __ASM_AVR32_SYSTEM_H
+
+#include <linux/compiler.h>
+#include <linux/types.h>
+
+#include <asm/ptrace.h>
+#include <asm/sysreg.h>
+
+#define xchg(ptr,x) \
+       ((__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr))))
+
+#define nop() asm volatile("nop")
+
+#define mb()                   asm volatile("" : : : "memory")
+#define rmb()                  mb()
+#define wmb()                  asm volatile("sync 0" : : : "memory")
+#define read_barrier_depends()  do { } while(0)
+#define set_mb(var, value)      do { var = value; mb(); } while(0)
+
+/*
+ * Help PathFinder and other Nexus-compliant debuggers keep track of
+ * the current PID by emitting an Ownership Trace Message each time we
+ * switch task.
+ */
+#ifdef CONFIG_OWNERSHIP_TRACE
+#include <asm/ocd.h>
+#define finish_arch_switch(prev)                       \
+       do {                                            \
+               __mtdr(DBGREG_PID, prev->pid);          \
+               __mtdr(DBGREG_PID, current->pid);       \
+       } while(0)
+#endif
+
+/*
+ * switch_to(prev, next, last) should switch from task `prev' to task
+ * `next'. `prev' will never be the same as `next'.
+ *
+ * We just delegate everything to the __switch_to assembly function,
+ * which is implemented in arch/avr32/kernel/switch_to.S
+ *
+ * mb() tells GCC not to cache `current' across this call.
+ */
+struct cpu_context;
+struct task_struct;
+extern struct task_struct *__switch_to(struct task_struct *,
+                                      struct cpu_context *,
+                                      struct cpu_context *);
+#define switch_to(prev, next, last)                                    \
+       do {                                                            \
+               last = __switch_to(prev, &prev->thread.cpu_context + 1, \
+                                  &next->thread.cpu_context);          \
+       } while (0)
+
+#ifdef CONFIG_SMP
+# error "The AVR32 port does not support SMP"
+#else
+# define smp_mb()              barrier()
+# define smp_rmb()             barrier()
+# define smp_wmb()             barrier()
+# define smp_read_barrier_depends() do { } while(0)
+#endif
+
+#include <linux/irqflags.h>
+
+extern void __xchg_called_with_bad_pointer(void);
+
+#ifdef __CHECKER__
+extern unsigned long __builtin_xchg(void *ptr, unsigned long x);
+#endif
+
+#define xchg_u32(val, m) __builtin_xchg((void *)m, val)
+
+static inline unsigned long __xchg(unsigned long x,
+                                      volatile void *ptr,
+                                      int size)
+{
+       switch(size) {
+       case 4:
+               return xchg_u32(x, ptr);
+       default:
+               __xchg_called_with_bad_pointer();
+               return x;
+       }
+}
+
+static inline unsigned long __cmpxchg_u32(volatile int *m, unsigned long old,
+                                         unsigned long new)
+{
+       __u32 ret;
+
+       asm volatile(
+               "1:     ssrf    5\n"
+               "       ld.w    %[ret], %[m]\n"
+               "       cp.w    %[ret], %[old]\n"
+               "       brne    2f\n"
+               "       stcond  %[m], %[new]\n"
+               "       brne    1b\n"
+               "2:\n"
+               : [ret] "=&r"(ret), [m] "=m"(*m)
+               : "m"(m), [old] "ir"(old), [new] "r"(new)
+               : "memory", "cc");
+       return ret;
+}
+
+extern unsigned long __cmpxchg_u64_unsupported_on_32bit_kernels(
+        volatile int * m, unsigned long old, unsigned long new);
+#define __cmpxchg_u64 __cmpxchg_u64_unsupported_on_32bit_kernels
+
+/* This function doesn't exist, so you'll get a linker error
+   if something tries to do an invalid cmpxchg().  */
+extern void __cmpxchg_called_with_bad_pointer(void);
+
+#define __HAVE_ARCH_CMPXCHG 1
+
+static inline unsigned long __cmpxchg(volatile void *ptr, unsigned long old,
+                                     unsigned long new, int size)
+{
+       switch (size) {
+       case 4:
+               return __cmpxchg_u32(ptr, old, new);
+       case 8:
+               return __cmpxchg_u64(ptr, old, new);
+       }
+
+       __cmpxchg_called_with_bad_pointer();
+       return old;
+}
+
+#define cmpxchg(ptr, old, new)                                 \
+       ((typeof(*(ptr)))__cmpxchg((ptr), (unsigned long)(old), \
+                                  (unsigned long)(new),        \
+                                  sizeof(*(ptr))))
+
+struct pt_regs;
+extern void __die(const char *, struct pt_regs *, unsigned long,
+                 const char *, const char *, unsigned long);
+extern void __die_if_kernel(const char *, struct pt_regs *, unsigned long,
+                           const char *, const char *, unsigned long);
+
+#define die(msg, regs, err)                                    \
+       __die(msg, regs, err, __FILE__ ":", __FUNCTION__, __LINE__)
+#define die_if_kernel(msg, regs, err)                                  \
+       __die_if_kernel(msg, regs, err, __FILE__ ":", __FUNCTION__, __LINE__)
+
+#define arch_align_stack(x)    (x)
+
+#endif /* __ASM_AVR32_SYSTEM_H */
diff --git a/include/asm-avr32/termbits.h b/include/asm-avr32/termbits.h
new file mode 100644 (file)
index 0000000..9dc6eac
--- /dev/null
@@ -0,0 +1,173 @@
+#ifndef __ASM_AVR32_TERMBITS_H
+#define __ASM_AVR32_TERMBITS_H
+
+#include <linux/posix_types.h>
+
+typedef unsigned char  cc_t;
+typedef unsigned int   speed_t;
+typedef unsigned int   tcflag_t;
+
+#define NCCS 19
+struct termios {
+       tcflag_t c_iflag;               /* input mode flags */
+       tcflag_t c_oflag;               /* output mode flags */
+       tcflag_t c_cflag;               /* control mode flags */
+       tcflag_t c_lflag;               /* local mode flags */
+       cc_t c_line;                    /* line discipline */
+       cc_t c_cc[NCCS];                /* control characters */
+};
+
+/* c_cc characters */
+#define VINTR 0
+#define VQUIT 1
+#define VERASE 2
+#define VKILL 3
+#define VEOF 4
+#define VTIME 5
+#define VMIN 6
+#define VSWTC 7
+#define VSTART 8
+#define VSTOP 9
+#define VSUSP 10
+#define VEOL 11
+#define VREPRINT 12
+#define VDISCARD 13
+#define VWERASE 14
+#define VLNEXT 15
+#define VEOL2 16
+
+/* c_iflag bits */
+#define IGNBRK 0000001
+#define BRKINT 0000002
+#define IGNPAR 0000004
+#define PARMRK 0000010
+#define INPCK  0000020
+#define ISTRIP 0000040
+#define INLCR  0000100
+#define IGNCR  0000200
+#define ICRNL  0000400
+#define IUCLC  0001000
+#define IXON   0002000
+#define IXANY  0004000
+#define IXOFF  0010000
+#define IMAXBEL        0020000
+#define IUTF8  0040000
+
+/* c_oflag bits */
+#define OPOST  0000001
+#define OLCUC  0000002
+#define ONLCR  0000004
+#define OCRNL  0000010
+#define ONOCR  0000020
+#define ONLRET 0000040
+#define OFILL  0000100
+#define OFDEL  0000200
+#define NLDLY  0000400
+#define   NL0  0000000
+#define   NL1  0000400
+#define CRDLY  0003000
+#define   CR0  0000000
+#define   CR1  0001000
+#define   CR2  0002000
+#define   CR3  0003000
+#define TABDLY 0014000
+#define   TAB0 0000000
+#define   TAB1 0004000
+#define   TAB2 0010000
+#define   TAB3 0014000
+#define   XTABS        0014000
+#define BSDLY  0020000
+#define   BS0  0000000
+#define   BS1  0020000
+#define VTDLY  0040000
+#define   VT0  0000000
+#define   VT1  0040000
+#define FFDLY  0100000
+#define   FF0  0000000
+#define   FF1  0100000
+
+/* c_cflag bit meaning */
+#define CBAUD  0010017
+#define  B0    0000000         /* hang up */
+#define  B50   0000001
+#define  B75   0000002
+#define  B110  0000003
+#define  B134  0000004
+#define  B150  0000005
+#define  B200  0000006
+#define  B300  0000007
+#define  B600  0000010
+#define  B1200 0000011
+#define  B1800 0000012
+#define  B2400 0000013
+#define  B4800 0000014
+#define  B9600 0000015
+#define  B19200        0000016
+#define  B38400        0000017
+#define EXTA B19200
+#define EXTB B38400
+#define CSIZE  0000060
+#define   CS5  0000000
+#define   CS6  0000020
+#define   CS7  0000040
+#define   CS8  0000060
+#define CSTOPB 0000100
+#define CREAD  0000200
+#define PARENB 0000400
+#define PARODD 0001000
+#define HUPCL  0002000
+#define CLOCAL 0004000
+#define CBAUDEX 0010000
+#define    B57600 0010001
+#define   B115200 0010002
+#define   B230400 0010003
+#define   B460800 0010004
+#define   B500000 0010005
+#define   B576000 0010006
+#define   B921600 0010007
+#define  B1000000 0010010
+#define  B1152000 0010011
+#define  B1500000 0010012
+#define  B2000000 0010013
+#define  B2500000 0010014
+#define  B3000000 0010015
+#define  B3500000 0010016
+#define  B4000000 0010017
+#define CIBAUD   002003600000  /* input baud rate (not used) */
+#define CMSPAR   010000000000          /* mark or space (stick) parity */
+#define CRTSCTS          020000000000          /* flow control */
+
+/* c_lflag bits */
+#define ISIG   0000001
+#define ICANON 0000002
+#define XCASE  0000004
+#define ECHO   0000010
+#define ECHOE  0000020
+#define ECHOK  0000040
+#define ECHONL 0000100
+#define NOFLSH 0000200
+#define TOSTOP 0000400
+#define ECHOCTL        0001000
+#define ECHOPRT        0002000
+#define ECHOKE 0004000
+#define FLUSHO 0010000
+#define PENDIN 0040000
+#define IEXTEN 0100000
+
+/* tcflow() and TCXONC use these */
+#define        TCOOFF          0
+#define        TCOON           1
+#define        TCIOFF          2
+#define        TCION           3
+
+/* tcflush() and TCFLSH use these */
+#define        TCIFLUSH        0
+#define        TCOFLUSH        1
+#define        TCIOFLUSH       2
+
+/* tcsetattr uses these */
+#define        TCSANOW         0
+#define        TCSADRAIN       1
+#define        TCSAFLUSH       2
+
+#endif /* __ASM_AVR32_TERMBITS_H */
diff --git a/include/asm-avr32/termios.h b/include/asm-avr32/termios.h
new file mode 100644 (file)
index 0000000..615bc06
--- /dev/null
@@ -0,0 +1,80 @@
+/*
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef __ASM_AVR32_TERMIOS_H
+#define __ASM_AVR32_TERMIOS_H
+
+#include <asm/termbits.h>
+#include <asm/ioctls.h>
+
+struct winsize {
+       unsigned short ws_row;
+       unsigned short ws_col;
+       unsigned short ws_xpixel;
+       unsigned short ws_ypixel;
+};
+
+#define NCC 8
+struct termio {
+       unsigned short c_iflag;         /* input mode flags */
+       unsigned short c_oflag;         /* output mode flags */
+       unsigned short c_cflag;         /* control mode flags */
+       unsigned short c_lflag;         /* local mode flags */
+       unsigned char c_line;           /* line discipline */
+       unsigned char c_cc[NCC];        /* control characters */
+};
+
+/* modem lines */
+#define TIOCM_LE       0x001
+#define TIOCM_DTR      0x002
+#define TIOCM_RTS      0x004
+#define TIOCM_ST       0x008
+#define TIOCM_SR       0x010
+#define TIOCM_CTS      0x020
+#define TIOCM_CAR      0x040
+#define TIOCM_RNG      0x080
+#define TIOCM_DSR      0x100
+#define TIOCM_CD       TIOCM_CAR
+#define TIOCM_RI       TIOCM_RNG
+#define TIOCM_OUT1     0x2000
+#define TIOCM_OUT2     0x4000
+#define TIOCM_LOOP     0x8000
+
+/* ioctl (fd, TIOCSERGETLSR, &result) where result may be as below */
+
+/* line disciplines */
+#define N_TTY          0
+#define N_SLIP         1
+#define N_MOUSE                2
+#define N_PPP          3
+#define N_STRIP                4
+#define N_AX25         5
+#define N_X25          6       /* X.25 async */
+#define N_6PACK                7
+#define N_MASC         8       /* Reserved for Mobitex module <kaz@cafe.net> */
+#define N_R3964                9       /* Reserved for Simatic R3964 module */
+#define N_PROFIBUS_FDL 10      /* Reserved for Profibus <Dave@mvhi.com> */
+#define N_IRDA         11      /* Linux IR - http://irda.sourceforge.net/ */
+#define N_SMSBLOCK     12      /* SMS block mode - for talking to GSM data cards about SMS messages */
+#define N_HDLC         13      /* synchronous HDLC */
+#define N_SYNC_PPP     14      /* synchronous PPP */
+#define N_HCI          15  /* Bluetooth HCI UART */
+
+#ifdef __KERNEL__
+/*     intr=^C         quit=^\         erase=del       kill=^U
+       eof=^D          vtime=\0        vmin=\1         sxtc=\0
+       start=^Q        stop=^S         susp=^Z         eol=\0
+       reprint=^R      discard=^U      werase=^W       lnext=^V
+       eol2=\0
+*/
+#define INIT_C_CC "\003\034\177\025\004\0\1\0\021\023\032\0\022\017\027\026\0"
+
+#include <asm-generic/termios.h>
+
+#endif /* __KERNEL__ */
+
+#endif /* __ASM_AVR32_TERMIOS_H */
diff --git a/include/asm-avr32/thread_info.h b/include/asm-avr32/thread_info.h
new file mode 100644 (file)
index 0000000..d1f5b35
--- /dev/null
@@ -0,0 +1,106 @@
+/*
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef __ASM_AVR32_THREAD_INFO_H
+#define __ASM_AVR32_THREAD_INFO_H
+
+#include <asm/page.h>
+
+#define THREAD_SIZE_ORDER      1
+#define THREAD_SIZE            (PAGE_SIZE << THREAD_SIZE_ORDER)
+
+#ifndef __ASSEMBLY__
+#include <asm/types.h>
+
+struct task_struct;
+struct exec_domain;
+
+struct thread_info {
+       struct task_struct      *task;          /* main task structure */
+       struct exec_domain      *exec_domain;   /* execution domain */
+       unsigned long           flags;          /* low level flags */
+       __u32                   cpu;
+       __s32                   preempt_count;  /* 0 => preemptable, <0 => BUG */
+       struct restart_block    restart_block;
+       __u8                    supervisor_stack[0];
+};
+
+#define INIT_THREAD_INFO(tsk)                                          \
+{                                                                      \
+       .task           = &tsk,                                         \
+       .exec_domain    = &default_exec_domain,                         \
+       .flags          = 0,                                            \
+       .cpu            = 0,                                            \
+       .preempt_count  = 1,                                            \
+       .restart_block  = {                                             \
+               .fn     = do_no_restart_syscall                         \
+       }                                                               \
+}
+
+#define init_thread_info       (init_thread_union.thread_info)
+#define init_stack             (init_thread_union.stack)
+
+/*
+ * Get the thread information struct from C.
+ * We do the usual trick and use the lower end of the stack for this
+ */
+static inline struct thread_info *current_thread_info(void)
+{
+       unsigned long addr = ~(THREAD_SIZE - 1);
+
+       asm("and %0, sp" : "=r"(addr) : "0"(addr));
+       return (struct thread_info *)addr;
+}
+
+/* thread information allocation */
+#define alloc_thread_info(ti) \
+       ((struct thread_info *) __get_free_pages(GFP_KERNEL, THREAD_SIZE_ORDER))
+#define free_thread_info(ti) free_pages((unsigned long)(ti), 1)
+#define get_thread_info(ti) get_task_struct((ti)->task)
+#define put_thread_info(ti) put_task_struct((ti)->task)
+
+#endif /* !__ASSEMBLY__ */
+
+#define PREEMPT_ACTIVE         0x40000000
+
+/*
+ * Thread information flags
+ * - these are process state flags that various assembly files may need to access
+ * - pending work-to-be-done flags are in LSW
+ * - other flags in MSW
+ */
+#define TIF_SYSCALL_TRACE       0       /* syscall trace active */
+#define TIF_NOTIFY_RESUME       1       /* resumption notification requested */
+#define TIF_SIGPENDING          2       /* signal pending */
+#define TIF_NEED_RESCHED        3       /* rescheduling necessary */
+#define TIF_POLLING_NRFLAG      4       /* true if poll_idle() is polling
+                                          TIF_NEED_RESCHED */
+#define TIF_BREAKPOINT         5       /* true if we should break after return */
+#define TIF_SINGLE_STEP                6       /* single step after next break */
+#define TIF_MEMDIE             7
+#define TIF_RESTORE_SIGMASK    8       /* restore signal mask in do_signal */
+#define TIF_USERSPACE          31      /* true if FS sets userspace */
+
+#define _TIF_SYSCALL_TRACE     (1 << TIF_SYSCALL_TRACE)
+#define _TIF_NOTIFY_RESUME     (1 << TIF_NOTIFY_RESUME)
+#define _TIF_SIGPENDING                (1 << TIF_SIGPENDING)
+#define _TIF_NEED_RESCHED      (1 << TIF_NEED_RESCHED)
+#define _TIF_POLLING_NRFLAG    (1 << TIF_POLLING_NRFLAG)
+#define _TIF_BREAKPOINT                (1 << TIF_BREAKPOINT)
+#define _TIF_SINGLE_STEP       (1 << TIF_SINGLE_STEP)
+#define _TIF_MEMDIE            (1 << TIF_MEMDIE)
+#define _TIF_RESTORE_SIGMASK   (1 << TIF_RESTORE_SIGMASK)
+
+/* XXX: These two masks must never span more than 16 bits! */
+/* work to do on interrupt/exception return */
+#define _TIF_WORK_MASK         0x0000013e
+/* work to do on any return to userspace */
+#define _TIF_ALLWORK_MASK      0x0000013f
+/* work to do on return from debug mode */
+#define _TIF_DBGWORK_MASK      0x0000017e
+
+#endif /* __ASM_AVR32_THREAD_INFO_H */
diff --git a/include/asm-avr32/timex.h b/include/asm-avr32/timex.h
new file mode 100644 (file)
index 0000000..5e44ecb
--- /dev/null
@@ -0,0 +1,40 @@
+/*
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef __ASM_AVR32_TIMEX_H
+#define __ASM_AVR32_TIMEX_H
+
+/*
+ * This is the frequency of the timer used for Linux's timer interrupt.
+ * The value should be defined as accurate as possible or under certain
+ * circumstances Linux timekeeping might become inaccurate or fail.
+ *
+ * For many system the exact clockrate of the timer isn't known but due to
+ * the way this value is used we can get away with a wrong value as long
+ * as this value is:
+ *
+ *  - a multiple of HZ
+ *  - a divisor of the actual rate
+ *
+ * 500000 is a good such cheat value.
+ *
+ * The obscure number 1193182 is the same as used by the original i8254
+ * time in legacy PC hardware; the chip is never found in AVR32 systems.
+ */
+#define CLOCK_TICK_RATE                500000  /* Underlying HZ */
+
+typedef unsigned long cycles_t;
+
+static inline cycles_t get_cycles (void)
+{
+       return 0;
+}
+
+extern int read_current_timer(unsigned long *timer_value);
+#define ARCH_HAS_READ_CURRENT_TIMER    1
+
+#endif /* __ASM_AVR32_TIMEX_H */
diff --git a/include/asm-avr32/tlb.h b/include/asm-avr32/tlb.h
new file mode 100644 (file)
index 0000000..5c55f9c
--- /dev/null
@@ -0,0 +1,32 @@
+/*
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef __ASM_AVR32_TLB_H
+#define __ASM_AVR32_TLB_H
+
+#define tlb_start_vma(tlb, vma) \
+       flush_cache_range(vma, vma->vm_start, vma->vm_end)
+
+#define tlb_end_vma(tlb, vma) \
+       flush_tlb_range(vma, vma->vm_start, vma->vm_end)
+
+#define __tlb_remove_tlb_entry(tlb, pte, address) do { } while(0)
+
+/*
+ * Flush whole TLB for MM
+ */
+#define tlb_flush(tlb) flush_tlb_mm((tlb)->mm)
+
+#include <asm-generic/tlb.h>
+
+/*
+ * For debugging purposes
+ */
+extern void show_dtlb_entry(unsigned int index);
+extern void dump_dtlb(void);
+
+#endif /* __ASM_AVR32_TLB_H */
diff --git a/include/asm-avr32/tlbflush.h b/include/asm-avr32/tlbflush.h
new file mode 100644 (file)
index 0000000..730e268
--- /dev/null
@@ -0,0 +1,40 @@
+/*
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef __ASM_AVR32_TLBFLUSH_H
+#define __ASM_AVR32_TLBFLUSH_H
+
+#include <asm/mmu.h>
+
+/*
+ * TLB flushing:
+ *
+ *  - flush_tlb() flushes the current mm struct TLBs
+ *  - flush_tlb_all() flushes all processes' TLB entries
+ *  - flush_tlb_mm(mm) flushes the specified mm context TLBs
+ *  - flush_tlb_page(vma, vmaddr) flushes one page
+ *  - flush_tlb_range(vma, start, end) flushes a range of pages
+ *  - flush_tlb_kernel_range(start, end) flushes a range of kernel pages
+ *  - flush_tlb_pgtables(mm, start, end) flushes a range of page tables
+ */
+extern void flush_tlb(void);
+extern void flush_tlb_all(void);
+extern void flush_tlb_mm(struct mm_struct *mm);
+extern void flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
+                           unsigned long end);
+extern void flush_tlb_page(struct vm_area_struct *vma, unsigned long page);
+extern void __flush_tlb_page(unsigned long asid, unsigned long page);
+
+static inline void flush_tlb_pgtables(struct mm_struct *mm,
+                                     unsigned long start, unsigned long end)
+{
+       /* Nothing to do */
+}
+
+extern void flush_tlb_kernel_range(unsigned long start, unsigned long end);
+
+#endif /* __ASM_AVR32_TLBFLUSH_H */
diff --git a/include/asm-avr32/topology.h b/include/asm-avr32/topology.h
new file mode 100644 (file)
index 0000000..5b766cb
--- /dev/null
@@ -0,0 +1,6 @@
+#ifndef __ASM_AVR32_TOPOLOGY_H
+#define __ASM_AVR32_TOPOLOGY_H
+
+#include <asm-generic/topology.h>
+
+#endif /* __ASM_AVR32_TOPOLOGY_H */
diff --git a/include/asm-avr32/traps.h b/include/asm-avr32/traps.h
new file mode 100644 (file)
index 0000000..6a8fb94
--- /dev/null
@@ -0,0 +1,23 @@
+/*
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef __ASM_AVR32_TRAPS_H
+#define __ASM_AVR32_TRAPS_H
+
+#include <linux/list.h>
+
+struct undef_hook {
+       struct list_head node;
+       u32 insn_mask;
+       u32 insn_val;
+       int (*fn)(struct pt_regs *regs, u32 insn);
+};
+
+void register_undef_hook(struct undef_hook *hook);
+void unregister_undef_hook(struct undef_hook *hook);
+
+#endif /* __ASM_AVR32_TRAPS_H */
diff --git a/include/asm-avr32/types.h b/include/asm-avr32/types.h
new file mode 100644 (file)
index 0000000..3f47db9
--- /dev/null
@@ -0,0 +1,70 @@
+/*
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef __ASM_AVR32_TYPES_H
+#define __ASM_AVR32_TYPES_H
+
+#ifndef __ASSEMBLY__
+
+typedef unsigned short umode_t;
+
+/*
+ * __xx is ok: it doesn't pollute the POSIX namespace. Use these in the
+ * header files exported to user space
+ */
+typedef __signed__ char __s8;
+typedef unsigned char __u8;
+
+typedef __signed__ short __s16;
+typedef unsigned short __u16;
+
+typedef __signed__ int __s32;
+typedef unsigned int __u32;
+
+#if defined(__GNUC__) && !defined(__STRICT_ANSI__)
+typedef __signed__ long long __s64;
+typedef unsigned long long __u64;
+#endif
+
+#endif /* __ASSEMBLY__ */
+
+/*
+ * These aren't exported outside the kernel to avoid name space clashes
+ */
+#ifdef __KERNEL__
+
+#define BITS_PER_LONG 32
+
+#ifndef __ASSEMBLY__
+
+typedef signed char s8;
+typedef unsigned char u8;
+
+typedef signed short s16;
+typedef unsigned short u16;
+
+typedef signed int s32;
+typedef unsigned int u32;
+
+typedef signed long long s64;
+typedef unsigned long long u64;
+
+/* Dma addresses are 32-bits wide.  */
+
+typedef u32 dma_addr_t;
+
+#ifdef CONFIG_LBD
+typedef u64 sector_t;
+#define HAVE_SECTOR_T
+#endif
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* __KERNEL__ */
+
+
+#endif /* __ASM_AVR32_TYPES_H */
diff --git a/include/asm-avr32/uaccess.h b/include/asm-avr32/uaccess.h
new file mode 100644 (file)
index 0000000..821deb5
--- /dev/null
@@ -0,0 +1,335 @@
+/*
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef __ASM_AVR32_UACCESS_H
+#define __ASM_AVR32_UACCESS_H
+
+#include <linux/errno.h>
+#include <linux/sched.h>
+
+#define VERIFY_READ    0
+#define VERIFY_WRITE   1
+
+typedef struct {
+       unsigned int is_user_space;
+} mm_segment_t;
+
+/*
+ * The fs value determines whether argument validity checking should be
+ * performed or not.  If get_fs() == USER_DS, checking is performed, with
+ * get_fs() == KERNEL_DS, checking is bypassed.
+ *
+ * For historical reasons (Data Segment Register?), these macros are misnamed.
+ */
+#define MAKE_MM_SEG(s) ((mm_segment_t) { (s) })
+#define segment_eq(a,b)        ((a).is_user_space == (b).is_user_space)
+
+#define USER_ADDR_LIMIT 0x80000000
+
+#define KERNEL_DS      MAKE_MM_SEG(0)
+#define USER_DS                MAKE_MM_SEG(1)
+
+#define get_ds()       (KERNEL_DS)
+
+static inline mm_segment_t get_fs(void)
+{
+       return MAKE_MM_SEG(test_thread_flag(TIF_USERSPACE));
+}
+
+static inline void set_fs(mm_segment_t s)
+{
+       if (s.is_user_space)
+               set_thread_flag(TIF_USERSPACE);
+       else
+               clear_thread_flag(TIF_USERSPACE);
+}
+
+/*
+ * Test whether a block of memory is a valid user space address.
+ * Returns 0 if the range is valid, nonzero otherwise.
+ *
+ * We do the following checks:
+ *   1. Is the access from kernel space?
+ *   2. Does (addr + size) set the carry bit?
+ *   3. Is (addr + size) a negative number (i.e. >= 0x80000000)?
+ *
+ * If yes on the first check, access is granted.
+ * If no on any of the others, access is denied.
+ */
+#define __range_ok(addr, size)                                         \
+       (test_thread_flag(TIF_USERSPACE)                                \
+        && (((unsigned long)(addr) >= 0x80000000)                      \
+            || ((unsigned long)(size) > 0x80000000)                    \
+            || (((unsigned long)(addr) + (unsigned long)(size)) > 0x80000000)))
+
+#define access_ok(type, addr, size) (likely(__range_ok(addr, size) == 0))
+
+static inline int
+verify_area(int type, const void __user *addr, unsigned long size)
+{
+       return access_ok(type, addr, size) ? 0 : -EFAULT;
+}
+
+/* Generic arbitrary sized copy. Return the number of bytes NOT copied */
+extern __kernel_size_t __copy_user(void *to, const void *from,
+                                  __kernel_size_t n);
+
+extern __kernel_size_t copy_to_user(void __user *to, const void *from,
+                                   __kernel_size_t n);
+extern __kernel_size_t copy_from_user(void *to, const void __user *from,
+                                     __kernel_size_t n);
+
+static inline __kernel_size_t __copy_to_user(void __user *to, const void *from,
+                                            __kernel_size_t n)
+{
+       return __copy_user((void __force *)to, from, n);
+}
+static inline __kernel_size_t __copy_from_user(void *to,
+                                              const void __user *from,
+                                              __kernel_size_t n)
+{
+       return __copy_user(to, (const void __force *)from, n);
+}
+
+#define __copy_to_user_inatomic __copy_to_user
+#define __copy_from_user_inatomic __copy_from_user
+
+/*
+ * put_user: - Write a simple value into user space.
+ * @x:   Value to copy to user space.
+ * @ptr: Destination address, in user space.
+ *
+ * Context: User context only.  This function may sleep.
+ *
+ * This macro copies a single simple value from kernel space to user
+ * space.  It supports simple types like char and int, but not larger
+ * data types like structures or arrays.
+ *
+ * @ptr must have pointer-to-simple-variable type, and @x must be assignable
+ * to the result of dereferencing @ptr.
+ *
+ * Returns zero on success, or -EFAULT on error.
+ */
+#define put_user(x,ptr)        \
+       __put_user_check((x),(ptr),sizeof(*(ptr)))
+
+/*
+ * get_user: - Get a simple variable from user space.
+ * @x:   Variable to store result.
+ * @ptr: Source address, in user space.
+ *
+ * Context: User context only.  This function may sleep.
+ *
+ * This macro copies a single simple variable from user space to kernel
+ * space.  It supports simple types like char and int, but not larger
+ * data types like structures or arrays.
+ *
+ * @ptr must have pointer-to-simple-variable type, and the result of
+ * dereferencing @ptr must be assignable to @x without a cast.
+ *
+ * Returns zero on success, or -EFAULT on error.
+ * On error, the variable @x is set to zero.
+ */
+#define get_user(x,ptr) \
+       __get_user_check((x),(ptr),sizeof(*(ptr)))
+
+/*
+ * __put_user: - Write a simple value into user space, with less checking.
+ * @x:   Value to copy to user space.
+ * @ptr: Destination address, in user space.
+ *
+ * Context: User context only.  This function may sleep.
+ *
+ * This macro copies a single simple value from kernel space to user
+ * space.  It supports simple types like char and int, but not larger
+ * data types like structures or arrays.
+ *
+ * @ptr must have pointer-to-simple-variable type, and @x must be assignable
+ * to the result of dereferencing @ptr.
+ *
+ * Caller must check the pointer with access_ok() before calling this
+ * function.
+ *
+ * Returns zero on success, or -EFAULT on error.
+ */
+#define __put_user(x,ptr) \
+       __put_user_nocheck((x),(ptr),sizeof(*(ptr)))
+
+/*
+ * __get_user: - Get a simple variable from user space, with less checking.
+ * @x:   Variable to store result.
+ * @ptr: Source address, in user space.
+ *
+ * Context: User context only.  This function may sleep.
+ *
+ * This macro copies a single simple variable from user space to kernel
+ * space.  It supports simple types like char and int, but not larger
+ * data types like structures or arrays.
+ *
+ * @ptr must have pointer-to-simple-variable type, and the result of
+ * dereferencing @ptr must be assignable to @x without a cast.
+ *
+ * Caller must check the pointer with access_ok() before calling this
+ * function.
+ *
+ * Returns zero on success, or -EFAULT on error.
+ * On error, the variable @x is set to zero.
+ */
+#define __get_user(x,ptr) \
+       __get_user_nocheck((x),(ptr),sizeof(*(ptr)))
+
+extern int __get_user_bad(void);
+extern int __put_user_bad(void);
+
+#define __get_user_nocheck(x, ptr, size)                               \
+({                                                                     \
+       typeof(*(ptr)) __gu_val = (typeof(*(ptr)) __force)0;            \
+       int __gu_err = 0;                                               \
+                                                                       \
+       switch (size) {                                                 \
+       case 1: __get_user_asm("ub", __gu_val, ptr, __gu_err); break;   \
+       case 2: __get_user_asm("uh", __gu_val, ptr, __gu_err); break;   \
+       case 4: __get_user_asm("w", __gu_val, ptr, __gu_err); break;    \
+       case 8: __get_user_asm("d", __gu_val, ptr, __gu_err); break;    \
+       default: __gu_err = __get_user_bad(); break;                    \
+       }                                                               \
+                                                                       \
+       x = __gu_val;                                                   \
+       __gu_err;                                                       \
+})
+
+#define __get_user_check(x, ptr, size)                                 \
+({                                                                     \
+       typeof(*(ptr)) __gu_val = (typeof(*(ptr)) __force)0;            \
+       const typeof(*(ptr)) __user * __gu_addr = (ptr);                \
+       int __gu_err = 0;                                               \
+                                                                       \
+       if (access_ok(VERIFY_READ, __gu_addr, size)) {                  \
+               switch (size) {                                         \
+               case 1:                                                 \
+                       __get_user_asm("ub", __gu_val, __gu_addr,       \
+                                      __gu_err);                       \
+                       break;                                          \
+               case 2:                                                 \
+                       __get_user_asm("uh", __gu_val, __gu_addr,       \
+                                      __gu_err);                       \
+                       break;                                          \
+               case 4:                                                 \
+                       __get_user_asm("w", __gu_val, __gu_addr,        \
+                                      __gu_err);                       \
+                       break;                                          \
+               case 8:                                                 \
+                       __get_user_asm("d", __gu_val, __gu_addr,        \
+                                      __gu_err);                       \
+                       break;                                          \
+               default:                                                \
+                       __gu_err = __get_user_bad();                    \
+                       break;                                          \
+               }                                                       \
+       } else {                                                        \
+               __gu_err = -EFAULT;                                     \
+       }                                                               \
+       x = __gu_val;                                                   \
+       __gu_err;                                                       \
+})
+
+#define __get_user_asm(suffix, __gu_val, ptr, __gu_err)                        \
+       asm volatile(                                                   \
+               "1:     ld." suffix "   %1, %3                  \n"     \
+               "2:                                             \n"     \
+               "       .section .fixup, \"ax\"                 \n"     \
+               "3:     mov     %0, %4                          \n"     \
+               "       rjmp    2b                              \n"     \
+               "       .previous                               \n"     \
+               "       .section __ex_table, \"a\"              \n"     \
+               "       .long   1b, 3b                          \n"     \
+               "       .previous                               \n"     \
+               : "=r"(__gu_err), "=r"(__gu_val)                        \
+               : "0"(__gu_err), "m"(*(ptr)), "i"(-EFAULT))
+
+#define __put_user_nocheck(x, ptr, size)                               \
+({                                                                     \
+       typeof(*(ptr)) __pu_val;                                        \
+       int __pu_err = 0;                                               \
+                                                                       \
+       __pu_val = (x);                                                 \
+       switch (size) {                                                 \
+       case 1: __put_user_asm("b", ptr, __pu_val, __pu_err); break;    \
+       case 2: __put_user_asm("h", ptr, __pu_val, __pu_err); break;    \
+       case 4: __put_user_asm("w", ptr, __pu_val, __pu_err); break;    \
+       case 8: __put_user_asm("d", ptr, __pu_val, __pu_err); break;    \
+       default: __pu_err = __put_user_bad(); break;                    \
+       }                                                               \
+       __pu_err;                                                       \
+})
+
+#define __put_user_check(x, ptr, size)                                 \
+({                                                                     \
+       typeof(*(ptr)) __pu_val;                                        \
+       typeof(*(ptr)) __user *__pu_addr = (ptr);                       \
+       int __pu_err = 0;                                               \
+                                                                       \
+       __pu_val = (x);                                                 \
+       if (access_ok(VERIFY_WRITE, __pu_addr, size)) {                 \
+               switch (size) {                                         \
+               case 1:                                                 \
+                       __put_user_asm("b", __pu_addr, __pu_val,        \
+                                      __pu_err);                       \
+                       break;                                          \
+               case 2:                                                 \
+                       __put_user_asm("h", __pu_addr, __pu_val,        \
+                                      __pu_err);                       \
+                       break;                                          \
+               case 4:                                                 \
+                       __put_user_asm("w", __pu_addr, __pu_val,        \
+                                      __pu_err);                       \
+                       break;                                          \
+               case 8:                                                 \
+                       __put_user_asm("d", __pu_addr, __pu_val,                \
+                                      __pu_err);                       \
+                       break;                                          \
+               default:                                                \
+                       __pu_err = __put_user_bad();                    \
+                       break;                                          \
+               }                                                       \
+       } else {                                                        \
+               __pu_err = -EFAULT;                                     \
+       }                                                               \
+       __pu_err;                                                       \
+})
+
+#define __put_user_asm(suffix, ptr, __pu_val, __gu_err)                        \
+       asm volatile(                                                   \
+               "1:     st." suffix "   %1, %3                  \n"     \
+               "2:                                             \n"     \
+               "       .section .fixup, \"ax\"                 \n"     \
+               "3:     mov     %0, %4                          \n"     \
+               "       rjmp    2b                              \n"     \
+               "       .previous                               \n"     \
+               "       .section __ex_table, \"a\"              \n"     \
+               "       .long   1b, 3b                          \n"     \
+               "       .previous                               \n"     \
+               : "=r"(__gu_err), "=m"(*(ptr))                          \
+               : "0"(__gu_err), "r"(__pu_val), "i"(-EFAULT))
+
+extern __kernel_size_t clear_user(void __user *addr, __kernel_size_t size);
+extern __kernel_size_t __clear_user(void __user *addr, __kernel_size_t size);
+
+extern long strncpy_from_user(char *dst, const char __user *src, long count);
+extern long __strncpy_from_user(char *dst, const char __user *src, long count);
+
+extern long strnlen_user(const char __user *__s, long __n);
+extern long __strnlen_user(const char __user *__s, long __n);
+
+#define strlen_user(s) strnlen_user(s, ~0UL >> 1)
+
+struct exception_table_entry
+{
+       unsigned long insn, fixup;
+};
+
+#endif /* __ASM_AVR32_UACCESS_H */
diff --git a/include/asm-avr32/ucontext.h b/include/asm-avr32/ucontext.h
new file mode 100644 (file)
index 0000000..ac7259c
--- /dev/null
@@ -0,0 +1,12 @@
+#ifndef __ASM_AVR32_UCONTEXT_H
+#define __ASM_AVR32_UCONTEXT_H
+
+struct ucontext {
+       unsigned long           uc_flags;
+       struct ucontext *       uc_link;
+       stack_t                 uc_stack;
+       struct sigcontext       uc_mcontext;
+       sigset_t                uc_sigmask;
+};
+
+#endif /* __ASM_AVR32_UCONTEXT_H */
diff --git a/include/asm-avr32/unaligned.h b/include/asm-avr32/unaligned.h
new file mode 100644 (file)
index 0000000..3042723
--- /dev/null
@@ -0,0 +1,25 @@
+#ifndef __ASM_AVR32_UNALIGNED_H
+#define __ASM_AVR32_UNALIGNED_H
+
+/*
+ * AVR32 can handle some unaligned accesses, depending on the
+ * implementation.  The AVR32 AP implementation can handle unaligned
+ * words, but halfwords must be halfword-aligned, and doublewords must
+ * be word-aligned.
+ *
+ * TODO: Make all this CPU-specific and optimize.
+ */
+
+#include <linux/string.h>
+
+/* Use memmove here, so gcc does not insert a __builtin_memcpy. */
+
+#define get_unaligned(ptr) \
+  ({ __typeof__(*(ptr)) __tmp; memmove(&__tmp, (ptr), sizeof(*(ptr))); __tmp; })
+
+#define put_unaligned(val, ptr)                                \
+  ({ __typeof__(*(ptr)) __tmp = (val);                 \
+     memmove((ptr), &__tmp, sizeof(*(ptr)));           \
+     (void)0; })
+
+#endif /* __ASM_AVR32_UNALIGNED_H */
diff --git a/include/asm-avr32/unistd.h b/include/asm-avr32/unistd.h
new file mode 100644 (file)
index 0000000..1f528f9
--- /dev/null
@@ -0,0 +1,387 @@
+/*
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef __ASM_AVR32_UNISTD_H
+#define __ASM_AVR32_UNISTD_H
+
+/*
+ * This file contains the system call numbers.
+ */
+
+#define __NR_restart_syscall      0
+#define __NR_exit                1
+#define __NR_fork                2
+#define __NR_read                3
+#define __NR_write               4
+#define __NR_open                5
+#define __NR_close               6
+#define __NR_umask               7
+#define __NR_creat               8
+#define __NR_link                9
+#define __NR_unlink             10
+#define __NR_execve             11
+#define __NR_chdir              12
+#define __NR_time               13
+#define __NR_mknod              14
+#define __NR_chmod              15
+#define __NR_chown              16
+#define __NR_lchown             17
+#define __NR_lseek              18
+#define __NR__llseek            19
+#define __NR_getpid             20
+#define __NR_mount              21
+#define __NR_umount2            22
+#define __NR_setuid             23
+#define __NR_getuid             24
+#define __NR_stime              25
+#define __NR_ptrace             26
+#define __NR_alarm              27
+#define __NR_pause              28
+#define __NR_utime              29
+#define __NR_stat               30
+#define __NR_fstat              31
+#define __NR_lstat              32
+#define __NR_access             33
+#define __NR_chroot             34
+#define __NR_sync               35
+#define __NR_fsync              36
+#define __NR_kill               37
+#define __NR_rename             38
+#define __NR_mkdir              39
+#define __NR_rmdir              40
+#define __NR_dup                41
+#define __NR_pipe               42
+#define __NR_times              43
+#define __NR_clone              44
+#define __NR_brk                45
+#define __NR_setgid             46
+#define __NR_getgid             47
+#define __NR_getcwd             48
+#define __NR_geteuid            49
+#define __NR_getegid            50
+#define __NR_acct               51
+#define __NR_setfsuid           52
+#define __NR_setfsgid           53
+#define __NR_ioctl              54
+#define __NR_fcntl              55
+#define __NR_setpgid            56
+#define __NR_mremap             57
+#define __NR_setresuid          58
+#define __NR_getresuid          59
+#define __NR_setreuid           60
+#define __NR_setregid           61
+#define __NR_ustat              62
+#define __NR_dup2               63
+#define __NR_getppid            64
+#define __NR_getpgrp            65
+#define __NR_setsid             66
+#define __NR_rt_sigaction       67
+#define __NR_rt_sigreturn       68
+#define __NR_rt_sigprocmask     69
+#define __NR_rt_sigpending      70
+#define __NR_rt_sigtimedwait    71
+#define __NR_rt_sigqueueinfo    72
+#define __NR_rt_sigsuspend      73
+#define __NR_sethostname        74
+#define __NR_setrlimit          75
+#define __NR_getrlimit          76     /* SuS compliant getrlimit */
+#define __NR_getrusage          77
+#define __NR_gettimeofday       78
+#define __NR_settimeofday       79
+#define __NR_getgroups          80
+#define __NR_setgroups          81
+#define __NR_select             82
+#define __NR_symlink            83
+#define __NR_fchdir             84
+#define __NR_readlink           85
+#define __NR_pread              86
+#define __NR_pwrite             87
+#define __NR_swapon             88
+#define __NR_reboot             89
+#define __NR_mmap2              90
+#define __NR_munmap             91
+#define __NR_truncate           92
+#define __NR_ftruncate          93
+#define __NR_fchmod             94
+#define __NR_fchown             95
+#define __NR_getpriority        96
+#define __NR_setpriority        97
+#define __NR_wait4              98
+#define __NR_statfs             99
+#define __NR_fstatfs           100
+#define __NR_vhangup           101
+#define __NR_sigaltstack       102
+#define __NR_syslog            103
+#define __NR_setitimer         104
+#define __NR_getitimer         105
+#define __NR_swapoff           106
+#define __NR_sysinfo           107
+#define __NR_ipc               108
+#define __NR_sendfile          109
+#define __NR_setdomainname     110
+#define __NR_uname             111
+#define __NR_adjtimex          112
+#define __NR_mprotect          113
+#define __NR_vfork             114
+#define __NR_init_module       115
+#define __NR_delete_module     116
+#define __NR_quotactl          117
+#define __NR_getpgid           118
+#define __NR_bdflush           119
+#define __NR_sysfs             120
+#define __NR_personality       121
+#define __NR_afs_syscall       122 /* Syscall for Andrew File System */
+#define __NR_getdents          123
+#define __NR_flock             124
+#define __NR_msync             125
+#define __NR_readv             126
+#define __NR_writev            127
+#define __NR_getsid            128
+#define __NR_fdatasync         129
+#define __NR__sysctl           130
+#define __NR_mlock             131
+#define __NR_munlock           132
+#define __NR_mlockall          133
+#define __NR_munlockall                134
+#define __NR_sched_setparam            135
+#define __NR_sched_getparam            136
+#define __NR_sched_setscheduler                137
+#define __NR_sched_getscheduler                138
+#define __NR_sched_yield               139
+#define __NR_sched_get_priority_max    140
+#define __NR_sched_get_priority_min    141
+#define __NR_sched_rr_get_interval     142
+#define __NR_nanosleep         143
+#define __NR_poll              144
+#define __NR_nfsservctl                145
+#define __NR_setresgid         146
+#define __NR_getresgid         147
+#define __NR_prctl              148
+#define __NR_socket            149
+#define __NR_bind              150
+#define __NR_connect           151
+#define __NR_listen            152
+#define __NR_accept            153
+#define __NR_getsockname       154
+#define __NR_getpeername       155
+#define __NR_socketpair                156
+#define __NR_send              157
+#define __NR_recv              158
+#define __NR_sendto            159
+#define __NR_recvfrom          160
+#define __NR_shutdown          161
+#define __NR_setsockopt                162
+#define __NR_getsockopt                163
+#define __NR_sendmsg           164
+#define __NR_recvmsg           165
+#define __NR_truncate64                166
+#define __NR_ftruncate64       167
+#define __NR_stat64            168
+#define __NR_lstat64           169
+#define __NR_fstat64           170
+#define __NR_pivot_root                171
+#define __NR_mincore           172
+#define __NR_madvise           173
+#define __NR_getdents64                174
+#define __NR_fcntl64           175
+#define __NR_gettid            176
+#define __NR_readahead         177
+#define __NR_setxattr          178
+#define __NR_lsetxattr         179
+#define __NR_fsetxattr         180
+#define __NR_getxattr          181
+#define __NR_lgetxattr         182
+#define __NR_fgetxattr         183
+#define __NR_listxattr         184
+#define __NR_llistxattr                185
+#define __NR_flistxattr                186
+#define __NR_removexattr       187
+#define __NR_lremovexattr      188
+#define __NR_fremovexattr      189
+#define __NR_tkill             190
+#define __NR_sendfile64                191
+#define __NR_futex             192
+#define __NR_sched_setaffinity 193
+#define __NR_sched_getaffinity 194
+#define __NR_capget            195
+#define __NR_capset            196
+#define __NR_io_setup          197
+#define __NR_io_destroy                198
+#define __NR_io_getevents      199
+#define __NR_io_submit         200
+#define __NR_io_cancel         201
+#define __NR_fadvise64         202
+#define __NR_exit_group                203
+#define __NR_lookup_dcookie    204
+#define __NR_epoll_create      205
+#define __NR_epoll_ctl         206
+#define __NR_epoll_wait                207
+#define __NR_remap_file_pages  208
+#define __NR_set_tid_address   209
+
+#define __NR_timer_create      210
+#define __NR_timer_settime     211
+#define __NR_timer_gettime     212
+#define __NR_timer_getoverrun  213
+#define __NR_timer_delete      214
+#define __NR_clock_settime     215
+#define __NR_clock_gettime     216
+#define __NR_clock_getres      217
+#define __NR_clock_nanosleep   218
+#define __NR_statfs64          219
+#define __NR_fstatfs64         220
+#define __NR_tgkill            221
+                               /* 222 reserved for tux */
+#define __NR_utimes            223
+#define __NR_fadvise64_64      224
+
+#define __NR_cacheflush                225
+
+#define __NR_vserver           226
+#define __NR_mq_open           227
+#define __NR_mq_unlink         228
+#define __NR_mq_timedsend      229
+#define __NR_mq_timedreceive   230
+#define __NR_mq_notify         231
+#define __NR_mq_getsetattr     232
+#define __NR_kexec_load                233
+#define __NR_waitid            234
+#define __NR_add_key           235
+#define __NR_request_key       236
+#define __NR_keyctl            237
+#define __NR_ioprio_set                238
+#define __NR_ioprio_get                239
+#define __NR_inotify_init      240
+#define __NR_inotify_add_watch 241
+#define __NR_inotify_rm_watch  242
+#define __NR_openat            243
+#define __NR_mkdirat           244
+#define __NR_mknodat           245
+#define __NR_fchownat          246
+#define __NR_futimesat         247
+#define __NR_fstatat64         248
+#define __NR_unlinkat          249
+#define __NR_renameat          250
+#define __NR_linkat            251
+#define __NR_symlinkat         252
+#define __NR_readlinkat                253
+#define __NR_fchmodat          254
+#define __NR_faccessat         255
+#define __NR_pselect6          256
+#define __NR_ppoll             257
+#define __NR_unshare           258
+#define __NR_set_robust_list   259
+#define __NR_get_robust_list   260
+#define __NR_splice            261
+#define __NR_sync_file_range   262
+#define __NR_tee               263
+#define __NR_vmsplice          264
+
+#define NR_syscalls            265
+
+
+/*
+ * AVR32 calling convention for system calls:
+ *   - System call number in r8
+ *   - Parameters in r12 and downwards to r9 as well as r6 and r5.
+ *   - Return value in r12
+ */
+
+/*
+ * user-visible error numbers are in the range -1 - -124: see
+ * <asm-generic/errno.h>
+ */
+
+#define __syscall_return(type, res) do {                               \
+               if ((unsigned long)(res) >= (unsigned long)(-125)) {    \
+                       errno = -(res);                                 \
+                       res = -1;                                       \
+               }                                                       \
+               return (type) (res);                                    \
+       } while (0)
+
+#ifdef __KERNEL__
+#define __ARCH_WANT_IPC_PARSE_VERSION
+#define __ARCH_WANT_STAT64
+#define __ARCH_WANT_SYS_ALARM
+#define __ARCH_WANT_SYS_GETHOSTNAME
+#define __ARCH_WANT_SYS_PAUSE
+#define __ARCH_WANT_SYS_TIME
+#define __ARCH_WANT_SYS_UTIME
+#define __ARCH_WANT_SYS_WAITPID
+#define __ARCH_WANT_SYS_FADVISE64
+#define __ARCH_WANT_SYS_GETPGRP
+#define __ARCH_WANT_SYS_LLSEEK
+#define __ARCH_WANT_SYS_GETPGRP
+#define __ARCH_WANT_SYS_RT_SIGACTION
+#define __ARCH_WANT_SYS_RT_SIGSUSPEND
+#endif
+
+#if defined(__KERNEL_SYSCALLS__) || defined(__CHECKER__)
+
+#include <linux/types.h>
+#include <linux/linkage.h>
+#include <asm/signal.h>
+
+struct pt_regs;
+
+/*
+ * we need this inline - forking from kernel space will result
+ * in NO COPY ON WRITE (!!!), until an execve is executed. This
+ * is no problem, but for the stack. This is handled by not letting
+ * main() use the stack at all after fork(). Thus, no function
+ * calls - which means inline code for fork too, as otherwise we
+ * would use the stack upon exit from 'fork()'.
+ *
+ * Actually only pause and fork are needed inline, so that there
+ * won't be any messing with the stack from main(), but we define
+ * some others too.
+ */
+static inline int execve(const char *file, char **argv, char **envp)
+{
+       register long scno asm("r8") = __NR_execve;
+       register long sc1 asm("r12") = (long)file;
+       register long sc2 asm("r11") = (long)argv;
+       register long sc3 asm("r10") = (long)envp;
+       int res;
+
+       asm volatile("scall"
+                    : "=r"(sc1)
+                    : "r"(scno), "0"(sc1), "r"(sc2), "r"(sc3)
+                    : "lr", "memory");
+       res = sc1;
+       __syscall_return(int, res);
+}
+
+asmlinkage long sys_rt_sigsuspend(sigset_t __user *unewset, size_t sigsetsize);
+asmlinkage int sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss,
+                              struct pt_regs *regs);
+asmlinkage int sys_rt_sigreturn(struct pt_regs *regs);
+asmlinkage int sys_pipe(unsigned long __user *filedes);
+asmlinkage long sys_mmap2(unsigned long addr, unsigned long len,
+                         unsigned long prot, unsigned long flags,
+                         unsigned long fd, off_t offset);
+asmlinkage int sys_cacheflush(int operation, void __user *addr, size_t len);
+asmlinkage int sys_fork(struct pt_regs *regs);
+asmlinkage int sys_clone(unsigned long clone_flags, unsigned long newsp,
+                        unsigned long parent_tidptr,
+                        unsigned long child_tidptr, struct pt_regs *regs);
+asmlinkage int sys_vfork(struct pt_regs *regs);
+asmlinkage int sys_execve(char __user *ufilename, char __user *__user *uargv,
+                         char __user *__user *uenvp, struct pt_regs *regs);
+
+#endif
+
+/*
+ * "Conditional" syscalls
+ *
+ * What we want is __attribute__((weak,alias("sys_ni_syscall"))),
+ * but it doesn't work on all toolchains, so we just do it by hand
+ */
+#define cond_syscall(x) asm(".weak\t" #x "\n\t.set\t" #x ",sys_ni_syscall");
+
+#endif /* __ASM_AVR32_UNISTD_H */
diff --git a/include/asm-avr32/user.h b/include/asm-avr32/user.h
new file mode 100644 (file)
index 0000000..060fb3a
--- /dev/null
@@ -0,0 +1,65 @@
+/*
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Note: We may not need these definitions for AVR32, as we don't
+ * support a.out.
+ */
+#ifndef __ASM_AVR32_USER_H
+#define __ASM_AVR32_USER_H
+
+#include <linux/types.h>
+#include <asm/ptrace.h>
+#include <asm/page.h>
+
+/*
+ * Core file format: The core file is written in such a way that gdb
+ * can understand it and provide useful information to the user (under
+ * linux we use the `trad-core' bfd).  The file contents are as follows:
+ *
+ *  upage: 1 page consisting of a user struct that tells gdb
+ *     what is present in the file.  Directly after this is a
+ *     copy of the task_struct, which is currently not used by gdb,
+ *     but it may come in handy at some point.  All of the registers
+ *     are stored as part of the upage.  The upage should always be
+ *     only one page long.
+ *  data: The data segment follows next.  We use current->end_text to
+ *     current->brk to pick up all of the user variables, plus any memory
+ *     that may have been sbrk'ed.  No attempt is made to determine if a
+ *     page is demand-zero or if a page is totally unused, we just cover
+ *     the entire range.  All of the addresses are rounded in such a way
+ *     that an integral number of pages is written.
+ *  stack: We need the stack information in order to get a meaningful
+ *     backtrace.  We need to write the data from usp to
+ *     current->start_stack, so we round each of these in order to be able
+ *     to write an integer number of pages.
+ */
+
+struct user_fpu_struct {
+       /* We have no FPU (yet) */
+};
+
+struct user {
+       struct pt_regs  regs;                   /* entire machine state */
+       size_t          u_tsize;                /* text size (pages) */
+       size_t          u_dsize;                /* data size (pages) */
+       size_t          u_ssize;                /* stack size (pages) */
+       unsigned long   start_code;             /* text starting address */
+       unsigned long   start_data;             /* data starting address */
+       unsigned long   start_stack;            /* stack starting address */
+       long int        signal;                 /* signal causing core dump */
+       struct regs *   u_ar0;                  /* help gdb find registers */
+       unsigned long   magic;                  /* identifies a core file */
+       char            u_comm[32];             /* user command name */
+};
+
+#define NBPG                   PAGE_SIZE
+#define UPAGES                 1
+#define HOST_TEXT_START_ADDR   (u.start_code)
+#define HOST_DATA_START_ADDR   (u.start_data)
+#define HOST_STACK_END_ADDR    (u.start_stack + u.u_ssize * NBPG)
+
+#endif /* __ASM_AVR32_USER_H */
index 6a5796c81c900c97ead2d871a6f612c398391afa..666e0a5f00fc7a760da1ee5759159afc41bc698a 100644 (file)
@@ -31,6 +31,7 @@
 #define EM_M32R                88      /* Renesas M32R */
 #define EM_H8_300      46      /* Renesas H8/300,300H,H8S */
 #define EM_FRV         0x5441  /* Fujitsu FR-V */
+#define EM_AVR32       0x18ad  /* Atmel AVR32 */
 
 /*
  * This is an interim value that we will use until the committee comes
index 554ee688a9f8a397cad63a96458ca5d1198b88e7..3f21cc79a1346b40e03d75c9d2e764925dff9dd0 100644 (file)
@@ -277,7 +277,7 @@ config DEBUG_HIGHMEM
 config DEBUG_BUGVERBOSE
        bool "Verbose BUG() reporting (adds 70K)" if DEBUG_KERNEL && EMBEDDED
        depends on BUG
-       depends on ARM || ARM26 || M32R || M68K || SPARC32 || SPARC64 || X86_32 || FRV
+       depends on ARM || ARM26 || AVR32 || M32R || M68K || SPARC32 || SPARC64 || X86_32 || FRV
        default !EMBEDDED
        help
          Say Y here to make BUG() panics output the file name and line number
@@ -315,7 +315,7 @@ config DEBUG_VM
 
 config FRAME_POINTER
        bool "Compile the kernel with frame pointers"
-       depends on DEBUG_KERNEL && (X86 || CRIS || M68K || M68KNOMMU || FRV || UML || S390)
+       depends on DEBUG_KERNEL && (X86 || CRIS || M68K || M68KNOMMU || FRV || UML || S390 || AVR32)
        default y if DEBUG_INFO && UML
        help
          If you say Y here the resulting kernel image will be slightly larger