Ralf Baechle [Thu, 12 Nov 2015 10:36:03 +0000 (11:36 +0100)]
Merge branch '4.3-fixes' into mips-for-linux-next
Aurelien Jarno [Sat, 5 Sep 2015 16:47:31 +0000 (18:47 +0200)]
MIPS: idle: add case for CPU_5KE
While the 5KE processors have never been taped out, they exists though
a CP0.PRId and experimental RTLs or QEMU implementations. Add a case
entry in the idle code, as they can use the standard idle loop like the
5K processors.
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11099/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Aaro Koskinen [Fri, 11 Sep 2015 14:46:15 +0000 (17:46 +0300)]
MIPS: Octeon: Support APPENDED_DTB
Use appended DTB when available.
Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11115/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Aaro Koskinen [Fri, 11 Sep 2015 14:46:14 +0000 (17:46 +0300)]
MIPS: vmlinux: create a section for appended DTB
For bootloaders that support booting only ELF kernels and load only ELF
segments to memory there is no easy way to supply DTB without kernel
recompilation. For that purpose, create a section called .appended_dtb
that can be later updated with board-specific DTB using binutils e.g. at
kernel installation time.
Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11114/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Amanieu d'Antras [Thu, 5 Nov 2015 00:50:24 +0000 (00:50 +0000)]
MIPS: Clean up compat_siginfo_t
While mips can't use the generic compat_siginfo_t directly because
its si_code and si_errno are inverted, we can still make it as
close to the generic version as possible. This makes it easier
to update when new members are added to siginfo_t.
The main changes are adding a missing _sigsys union member and
eliminating the unused _irix_sigchld one.
Signed-off-by: Amanieu d'Antras <amanieu@gmail.com>
Cc: linux-kernel@vger.kernel.org
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11455/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Dan Williams [Sat, 10 Oct 2015 00:56:28 +0000 (20:56 -0400)]
MIPS: Fix PAGE_MASK definition
Make PAGE_MASK an unsigned long, like it is on x86, to avoid:
In file included from arch/mips/kernel/asm-offsets.c:14:0:
include/linux/mm.h: In function '__pfn_to_pfn_t':
include/linux/mm.h:1050:2: warning: left shift count >= width of type
pfn_t pfn_t = { .val = pfn | (flags & PFN_FLAGS_MASK), };
...where PFN_FLAGS_MASK is:
#define PFN_FLAGS_MASK (~PAGE_MASK << (BITS_PER_LONG - PAGE_SHIFT))
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Cc: ross.zwisler@linux.intel.com
Cc: hch@lst.de
Cc: linux-mips@linux-mips.org
Cc: linux-nvdimm@lists.01.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-mm@kvack.org
Patchwork: https://patchwork.linux-mips.org/patch/11280/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Florian Fainelli [Fri, 16 Oct 2015 19:51:58 +0000 (12:51 -0700)]
MIPS: BMIPS: Enable GZIP ramdisk and timed printks
Update bmips_be_defconfig and bmips_stb_defconfig to have GZIP ramdisk
support enabled by default as well was timed printks.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Kevin Cernekee <cernekee@gmail.com>
Reviewed-by: Dragan Stancevic <dragan.stancevic@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: blogic@openwrt.org
Cc: jogo@openwrt.org
Patchwork: https://patchwork.linux-mips.org/patch/11307/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Zubair Lutfullah Kakakhel [Mon, 26 Oct 2015 11:30:57 +0000 (11:30 +0000)]
MIPS: Add xilfpga defconfig
Add defconfig for MIPSfpga
Signed-off-by: Zubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com>
Cc: robh+dt@kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Cc: devicetree@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11363/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Zubair Lutfullah Kakakhel [Mon, 26 Oct 2015 11:30:56 +0000 (11:30 +0000)]
MIPS: xilfpga: Add mipsfpga platform code
The xilfpga platform will be DT only.
Add required platform code.
DT files have already been added separately.
Signed-off-by: Zubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com>
Cc: robh+dt@kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Cc: devicetree@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11364/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Zubair Lutfullah Kakakhel [Mon, 26 Oct 2015 11:30:55 +0000 (11:30 +0000)]
MIPS: xilfpga: Add xilfpga device tree files.
Add device tree files for the MIPSfpga platform.
See Documentation/devicetree/bindings/mips/img/xilfpga.txt
for details about MIPSfpga
Signed-off-by: Zubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com>
Cc: robh+dt@kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Cc: devicetree@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11362/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Zubair Lutfullah Kakakhel [Mon, 26 Oct 2015 11:30:54 +0000 (11:30 +0000)]
dt-bindings: MIPS: Document xilfpga bindings and boot style
Xilfpga boots only with device-tree. Document the required properties
and the unique boot style
Signed-off-by: Zubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com>
Cc: robh+dt@kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Cc: devicetree@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11361/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Jonas Gorski [Mon, 12 Oct 2015 11:13:03 +0000 (13:13 +0200)]
MIPS: Make MIPS_CMDLINE_DTB default
Seval of-enabled machines (bmips, lantiq, xlp, pistachio, ralink) copied
the arguments from dtb to arcs_command_line to prevent the kernel from
overwriting them.
Since there is now an option to keep the dtb arguments, default to the
new option remove the "backup" to arcs_command_line in case of USE_OF is
enabled, except for those platforms that still take the bootloader
arguments or do not use any at all.
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Cc: linux-mips@linux-mips.org
Cc: Kevin Cernekee <cernekee@gmail.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Zubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com>
Cc: James Hogan <james.hogan@imgtec.com>
Cc: John Crispin <blogic@openwrt.org>
Cc: Ganesan Ramalingam <ganesanr@broadcom.com>
Cc: Jayachandran C <jchandra@broadcom.com>
Cc: Andrew Bresticker <abrestic@chromium.org>
Cc: James Hartley <james.hartley@imgtec.com>
Patchwork: https://patchwork.linux-mips.org/patch/11285/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Jonas Gorski [Mon, 12 Oct 2015 11:13:02 +0000 (13:13 +0200)]
MIPS: Make the kernel arguments from dtb available
Similar to how arm allows using selecting between bootloader arguments,
dtb arguments and both, allow to select them on mips. But since we have
less control over the place of the dtb do not modify it but instead use
the boot_command_line for merging them.
The default is "use bootloader arguments" to keep the current behaviour
as default.
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Cc: linux-mips@linux-mips.org
Cc: Kevin Cernekee <cernekee@gmail.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Zubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com>
Cc: James Hogan <james.hogan@imgtec.com>
Cc: John Crispin <blogic@openwrt.org>
Cc: Ganesan Ramalingam <ganesanr@broadcom.com>
Cc: Jayachandran C <jchandra@broadcom.com>
Cc: Andrew Bresticker <abrestic@chromium.org>
Cc: James Hartley <james.hartley@imgtec.com>
Patchwork: https://patchwork.linux-mips.org/patch/11284/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Jonas Gorski [Mon, 12 Oct 2015 11:13:01 +0000 (13:13 +0200)]
MIPS: Use USE_OF as the guard for appended dtb
Since OF is now a user selectable symbol, the choice for appended dtb
support should only be visible when USE_OF is selected, as this
indicates actual machine support for device tree in MIPS.
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Cc: linux-mips@linux-mips.org
Cc: Kevin Cernekee <cernekee@gmail.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Zubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com>
Cc: James Hogan <james.hogan@imgtec.com>
Cc: John Crispin <blogic@openwrt.org>
Cc: Ganesan Ramalingam <ganesanr@broadcom.com>
Cc: Jayachandran C <jchandra@broadcom.com>
Cc: Andrew Bresticker <abrestic@chromium.org>
Cc: James Hartley <james.hartley@imgtec.com>
Patchwork: https://patchwork.linux-mips.org/patch/11283/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Gregory Fong [Wed, 14 Oct 2015 11:27:38 +0000 (04:27 -0700)]
MIPS: BCM63XX: Use pr_* instead of printk
Signed-off-by: Gregory Fong <gregory.0xf0@gmail.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Jonas Gorski <jogo@openwrt.org>
Cc: Joe Perches <joe@perches.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Nicolas Schichan <nschichan@freebox.fr>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11300/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Huacai Chen [Wed, 7 Oct 2015 06:07:59 +0000 (14:07 +0800)]
MIPS: Loongson: Cleanup CONFIG_LOONGSON_SUSPEND.
Now LOONGSON_CHIPCFG register definition doesn't depend on CPUFREQ any
more, so CPU_SUPPORTS_CPUFREQ is no longer needed for suspend/resume.
Remove CONFIG_LOONGSON_SUSPEND and use CONFIG_SUSPEND instead.
Signed-off-by: Huacai Chen <chenhc@lemote.com>
Cc: John Crispin <john@phrozen.org>
Cc: Steven J. Hill <Steven.Hill@imgtec.com>
Cc: Fuxin Zhang <zhangfx@lemote.com>
Cc: Zhangjin Wu <wuzhangjin@gmail.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11274/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
John Crispin [Thu, 5 Nov 2015 02:56:23 +0000 (03:56 +0100)]
MIPS: lantiq: Disable xbar fpi burst mode
Signed-off-by: John Crispin <blogic@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11458/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
John Crispin [Wed, 4 Nov 2015 12:14:15 +0000 (13:14 +0100)]
MIPS: lantiq: Force the crossbar to big endian
Signed-off-by: John Crispin <blogic@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11450/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
John Crispin [Wed, 4 Nov 2015 12:14:14 +0000 (13:14 +0100)]
MIPS: lantiq: Initialize the USB core on boot
There is a DWC2 USB core in these SoCs. To make USB work we need to first
reset and power the state machine. These are SoC specific registers and
not part of the actual USB core.
Signed-off-by: Antti Seppälä <a.seppala@gmail.com>
Signed-off-by: John Crispin <blogic@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11449/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
John Crispin [Wed, 4 Nov 2015 12:14:13 +0000 (13:14 +0100)]
MIPS: lantiq: Return correct value for fpi clock on ar9
Some configurations of AR9 reported the incorrect speed for the fpi bus.
Signed-off-by: Ben Mulvihill <ben.mulvihill@gmail.com>
Signed-off-by: John Crispin <blogic@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11448/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
John Crispin [Wed, 4 Nov 2015 10:50:14 +0000 (11:50 +0100)]
MIPS: ralink: Add missing clock on rt305x
The rt305x support is missing a clock required by the ethernet driver.
Signed-off-by: John Crispin <blogic@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11447/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
John Crispin [Wed, 4 Nov 2015 10:50:13 +0000 (11:50 +0100)]
MIPS: ralink: Put the pci bus into reset state before rebooting the SoC
Some pcie cards have problems after a reboot without this.
Signed-off-by: John Crispin <blogic@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11446/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
John Crispin [Wed, 4 Nov 2015 10:50:12 +0000 (11:50 +0100)]
MIPS: ralink: Don't set pm_power_off
Setting pm_power_off is apprently wrong and makes drivers such as
gpio-poweroff not work.
Signed-off-by: John Crispin <blogic@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11445/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
John Crispin [Wed, 4 Nov 2015 10:50:11 +0000 (11:50 +0100)]
MIPS: ralink: Remove check for CONFIG_PCI on non-PCI SoCs
The code currently panics if PCI is enabled but the SoC has no PCI bus.
This check is superfluous as the driver only loads if enabled in the
devicetree.
Signed-off-by: John Crispin <blogic@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11444/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
John Crispin [Wed, 4 Nov 2015 10:50:10 +0000 (11:50 +0100)]
MIPS: ralink: Fix invalid tick count
The current code adds the delta twice, which is obviously wrong.
Signed-off-by: John Crispin <blogic@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11443/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
John Crispin [Thu, 5 Nov 2015 02:59:58 +0000 (03:59 +0100)]
MIPS: ralink: Add tty detection
MT7688 has several uarts that can be used for console. There are several
boards in the wild, that use ttyS1 or ttyS2. This patch applies a simply
autodetection routine to figure out which ttyS the bootloader used as
console. The uarts come up in 6 bit mode by default. The bootloader will
have set 8 bit mode on the console. Find that 8bit tty and use it.
Signed-off-by: John Crispin <blogic@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11459/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
John Crispin [Wed, 4 Nov 2015 10:50:08 +0000 (11:50 +0100)]
MIPS: ralink: Fix usb issue during frequency scaling
If the USB HCD is running and the cpu is scaled too low, then the USB
stops working. Increase the idle speed of the core to fix this if the
kernel is built with USB support.
The "magic" values are taken from the Ralink SDK Kernel.
Signed-off-by: John Crispin <blogic@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11441/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
John Crispin [Wed, 4 Nov 2015 10:50:07 +0000 (11:50 +0100)]
MIPS: ralink: Unify SoC id handling
This makes detection a lot easier for audio, wifi, ... drivers.
Signed-off-by: John Crispin <blogic@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11440/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
John Crispin [Wed, 4 Nov 2015 10:50:06 +0000 (11:50 +0100)]
MIPS: ralink: Add support for mt7688
MT7688 is similar tot he MT7628 but has a different wifi radio.
Signed-off-by: John Crispin <blogic@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11439/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Jaedon Shin [Tue, 27 Oct 2015 06:48:11 +0000 (15:48 +0900)]
MIPS: BMIPS: Add SATA/PHY nodes for bcm7362
Add AHCI and PHY device nodes to MIPS-based BCM7362 set-top box
platform.
Signed-off-by: Jaedon Shin <jaedon.shin@gmail.com>
Cc: Brian Norris <computersforpeace@gmail.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Kishon Vijay Abraham I <kishon@ti.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Kevin Cernekee <cernekee@gmail.com>
Cc: Dragan Stancevic <dragan.stancevic@gmail.com>
Cc: linux-ide@vger.kernel.org
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Cc: devicetree@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11379/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Jaedon Shin [Tue, 27 Oct 2015 06:48:10 +0000 (15:48 +0900)]
MIPS: BMIPS: Add SATA/PHY nodes for bcm7346
Add AHCI and PHY device nodes to MIPS-based BCM7346 set-top box
platform.
Signed-off-by: Jaedon Shin <jaedon.shin@gmail.com>
Cc: Brian Norris <computersforpeace@gmail.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Kishon Vijay Abraham I <kishon@ti.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Kevin Cernekee <cernekee@gmail.com>
Cc: Dragan Stancevic <dragan.stancevic@gmail.com>
Cc: linux-ide@vger.kernel.org
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Cc: devicetree@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11378/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Jaedon Shin [Tue, 27 Oct 2015 06:48:09 +0000 (15:48 +0900)]
MIPS: BMIPS: Add SATA/PHY nodes for bcm7425
Add AHCI and PHY device nodes to MIPS-based BCM7425 set-top box
platform.
Signed-off-by: Jaedon Shin <jaedon.shin@gmail.com>
Cc: Brian Norris <computersforpeace@gmail.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Kishon Vijay Abraham I <kishon@ti.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Kevin Cernekee <cernekee@gmail.com>
Cc: Dragan Stancevic <dragan.stancevic@gmail.com>
Cc: linux-ide@vger.kernel.org
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Cc: devicetree@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11377/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Jaedon Shin [Wed, 21 Oct 2015 02:37:01 +0000 (11:37 +0900)]
MIPS: BMIPS: Add I2C node for bcm7362
Add I2C device nodes to BMIPS based BCM7362 platform.
Signed-off-by: Jaedon Shin <jaedon.shin@gmail.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Cc: Wolfram Sang <wsa@the-dreams.de>
Cc: Kamal Dasu <kdasu.kdev@gmail.com>
Cc: linux-i2c@vger.kernel.org
Cc: devicetree@vger.kernel.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11336/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Jaedon Shin [Wed, 21 Oct 2015 02:37:00 +0000 (11:37 +0900)]
MIPS: BMIPS: Add I2C node for bcm7360
Add I2C device nodes to BMIPS based BCM7360 platform.
Signed-off-by: Jaedon Shin <jaedon.shin@gmail.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Cc: Wolfram Sang <wsa@the-dreams.de>
Cc: Kamal Dasu <kdasu.kdev@gmail.com>
Cc: linux-i2c@vger.kernel.org
Cc: devicetree@vger.kernel.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11335/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Jaedon Shin [Wed, 21 Oct 2015 02:36:59 +0000 (11:36 +0900)]
MIPS: BMIPS: Add I2C node for bcm7358
Add I2C device nodes to BMIPS based BCM7358 platform.
Signed-off-by: Jaedon Shin <jaedon.shin@gmail.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Cc: Wolfram Sang <wsa@the-dreams.de>
Cc: Kamal Dasu <kdasu.kdev@gmail.com>
Cc: linux-i2c@vger.kernel.org
Cc: devicetree@vger.kernel.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11334/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Jaedon Shin [Wed, 21 Oct 2015 02:36:58 +0000 (11:36 +0900)]
MIPS: BMIPS: Add I2C node for bcm7346
Add I2C device nodes to BMIPS based BCM7346 platform.
Signed-off-by: Jaedon Shin <jaedon.shin@gmail.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Cc: Wolfram Sang <wsa@the-dreams.de>
Cc: Kamal Dasu <kdasu.kdev@gmail.com>
Cc: linux-i2c@vger.kernel.org
Cc: devicetree@vger.kernel.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11333/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Hauke Mehrtens [Wed, 28 Oct 2015 22:37:44 +0000 (23:37 +0100)]
MIPS: Lantiq: Fix check for return value of request_mem_region()
request_mem_region() returns a pointer and not an integer with an error
value. A check for "< 0" on a pointer will cause problems, replace it
with not null checks instead. This was found with sparse.
Signed-off-by: Hauke Mehrtens <hauke.mehrtens@lantiq.com>
Acked-by: John Crispin <blogic@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11395/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Hauke Mehrtens [Wed, 28 Oct 2015 22:37:43 +0000 (23:37 +0100)]
MIPS: Lantiq: Add support for xRX220 SoC
Signed-off-by: Hauke Mehrtens <hauke.mehrtens@lantiq.com>
Acked-by: John Crispin <blogic@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11394/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Hauke Mehrtens [Wed, 28 Oct 2015 22:37:42 +0000 (23:37 +0100)]
MIPS: Lantiq: Add misc clocks
Signed-off-by: Hauke Mehrtens <hauke.mehrtens@lantiq.com>
Acked-by: John Crispin <blogic@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11393/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Hauke Mehrtens [Wed, 28 Oct 2015 22:37:41 +0000 (23:37 +0100)]
MIPS: Lantiq: Add
1e103100.deu clock
Signed-off-by: Hauke Mehrtens <hauke.mehrtens@lantiq.com>
Acked-by: John Crispin <blogic@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11392/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Hauke Mehrtens [Wed, 28 Oct 2015 22:37:40 +0000 (23:37 +0100)]
MIPS: Lantiq: Add clock for mei driver
Signed-off-by: Hauke Mehrtens <hauke.mehrtens@lantiq.com>
Acked-by: John Crispin <blogic@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11391/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Hauke Mehrtens [Wed, 28 Oct 2015 22:37:39 +0000 (23:37 +0100)]
MIPS: Lantiq: Add SoC detection for ar10 and grx390
Signed-off-by: Hauke Mehrtens <hauke.mehrtens@lantiq.com>
Acked-by: John Crispin <blogic@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11390/
Patchwork: https://patchwork.linux-mips.org/patch/11399/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Hauke Mehrtens [Wed, 28 Oct 2015 22:37:38 +0000 (23:37 +0100)]
MIPS: Lantiq: Add support for gphy firmware loading for ar10 and grx390
Signed-off-by: Hauke Mehrtens <hauke.mehrtens@lantiq.com>
Acked-by: John Crispin <blogic@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11389/
Patchwork: https://patchwork.linux-mips.org/patch/11398/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Hauke Mehrtens [Wed, 28 Oct 2015 22:37:37 +0000 (23:37 +0100)]
MIPS: Lantiq: Add pmu bits for ar10 and grx390
Signed-off-by: Hauke Mehrtens <hauke.mehrtens@lantiq.com>
Acked-by: John Crispin <blogic@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11388/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Hauke Mehrtens [Wed, 28 Oct 2015 22:37:36 +0000 (23:37 +0100)]
MIPS: Lantiq: Add PMU bits for USB and SDIO devices
This adds the PUM bits for USB and SDIO devices
Signed-off-by: Hauke Mehrtens <hauke.mehrtens@lantiq.com>
Acked-by: John Crispin <blogic@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11387/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Hauke Mehrtens [Wed, 28 Oct 2015 22:37:35 +0000 (23:37 +0100)]
MIPS: Lantiq: Deactivate most of the devices by default
When the SoC starts up most of the devices should be deactivated by the
PMU, they should be activated when they get used by their drivers. Some
devices should not get deactivate at startup like the serial, register
them in a special way.
Signed-off-by: Hauke Mehrtens <hauke.mehrtens@lantiq.com>
Acked-by: John Crispin <blogic@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11386/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Hauke Mehrtens [Wed, 28 Oct 2015 22:37:34 +0000 (23:37 +0100)]
MIPS: Lantiq: Add clock detection for grx390 and ar10
This add detection of some clocks on the ar10 and grx390.
Signed-off-by: Hauke Mehrtens <hauke.mehrtens@lantiq.com>
Acked-by: John Crispin <blogic@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11385/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Hauke Mehrtens [Wed, 28 Oct 2015 22:37:33 +0000 (23:37 +0100)]
MIPS: Lantiq: Fix pp32 clock on vr9
The vendor code uses different clock values for this clock.
Signed-off-by: Hauke Mehrtens <hauke.mehrtens@lantiq.com>
Acked-by: John Crispin <blogic@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11384/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Hauke Mehrtens [Wed, 28 Oct 2015 22:37:32 +0000 (23:37 +0100)]
MIPS: Lantiq: Rename CGU_SYS_VR9 register
This register is also used on other SoCs.
Signed-off-by: Hauke Mehrtens <hauke.mehrtens@lantiq.com>
Acked-by: John Crispin <blogic@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11383/
Patchwork: https://patchwork.linux-mips.org/patch/11397/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Hauke Mehrtens [Wed, 28 Oct 2015 22:37:31 +0000 (23:37 +0100)]
MIPS: Lantiq: Add support for setting PMU register on AR10 and GRX390
This adds support for setting the PMU register on the AR10 and GRX390.
Signed-off-by: Hauke Mehrtens <hauke.mehrtens@lantiq.com>
Acked-by: John Crispin <blogic@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11382/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Hauke Mehrtens [Wed, 28 Oct 2015 22:37:30 +0000 (23:37 +0100)]
MIPS: Lantiq: Add locking for PMU register and check status afterwards
The PMU register are accessed in a non atomic way and they could be
accessed by different threads simultaneously, which could cause
problems this patch adds locking around the PMU registers. In
addition we now also wait till the PMU is actually deactivated.
[ralf@linux-mips.org: Fix spelling mistake in commit message as noticed
by Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>.]
Signed-off-by: Hauke Mehrtens <hauke.mehrtens@lantiq.com>
Acked-by: John Crispin <blogic@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11381/
Patchwork: https://patchwork.linux-mips.org/patch/11396/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Rafał Miłecki [Mon, 26 Oct 2015 10:13:16 +0000 (11:13 +0100)]
MIPS: BCM47xx: Fetch board info directly in callback function
This drops another symbol dependency between setup.c and sprom.c which
will allow us to make SPROM code a separated module (and share it with
ARM).
Patch tested on Linksys WRT300N V1.
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Cc: Hauke Mehrtens <hauke@hauke-m.de>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11360/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Rafał Miłecki [Sun, 25 Oct 2015 21:16:48 +0000 (22:16 +0100)]
MIPS: BCM47xx: Fix some WARNINGs pointed in sprom.c by checkpatch.pl
There are still few left:
1) Most of them about lines over 80 chars (increased readability exception)
2) Wrong parsing of preprocessor macros
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: Hauke Mehrtens <hauke@hauke-m.de>
Patchwork: https://patchwork.linux-mips.org/patch/11356/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Rafał Miłecki [Sun, 25 Oct 2015 21:16:47 +0000 (22:16 +0100)]
MIPS: BCM47xx: Support on-SoC bus in SPROM reading function
To support (extract) SPROM on Broadcom ARM devices we should separate
SPROM code and make it a separated module. We won't want to export
bcm47xx_fill_sprom symbol so we should support SoC SPROM in the standard
fallback function and then modify ssb to use it.
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Acked-by: Hauke Mehrtens <hauke@hauke-m.de>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11355/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Hauke Mehrtens [Sun, 25 Oct 2015 22:21:42 +0000 (23:21 +0100)]
MIPS: lantiq: add clk_round_rate()
This adds a basic implementation of clk_round_rate()
The clk_round_rate() function is called by multiple drivers and
subsystems now and the lantiq clk driver is supposed to export this,
but doesn't do so, this causes linking problems like this one:
ERROR: "clk_round_rate" [drivers/media/v4l2-core/videodev.ko] undefined!
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Acked-by: John Crispin <blogic@openwrt.org>
Cc: <stable@vger.kernel.org> # 4.1+
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11358/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Aaro Koskinen [Fri, 23 Oct 2015 12:39:02 +0000 (15:39 +0300)]
MIPS: Add LATENCYTOP support
Add LATENCYTOP support for MIPS. Tested on OCTEON.
Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11353/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Julia Lawall [Sun, 25 Oct 2015 21:24:25 +0000 (22:24 +0100)]
MIPS: pci-rt3883: drop unneeded of_node_get
for_each_child_of_node performs an of_node_get on each iteration, so no
of_node_get is needed on breaking out of the loop when the device_node
structure is saved in another variable.
A simplified semantic match that finds this problem is as follows
(http://coccinelle.lip6.fr):
// <smpl>
@@
expression root;
local idexpression child;
@@
for_each_child_of_node(root, child) {
...
* of_node_get(child)
...
break;
}
// </smpl>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Cc: kernel-janitors@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Cc: Russell King - ARM Linux <linux@arm.linux.org.uk>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Jason Cooper <jason@lakedaemon.net>
Patchwork: https://patchwork.linux-mips.org/patch/11357/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Alex Smith [Wed, 21 Oct 2015 08:57:44 +0000 (09:57 +0100)]
MIPS: VDSO: Add implementations of gettimeofday() and clock_gettime()
Add user-mode implementations of gettimeofday() and clock_gettime() to
the VDSO. This is currently usable with 2 clocksources: the CP0 count
register, which is accessible to user-mode via RDHWR on R2 and later
cores, or the MIPS Global Interrupt Controller (GIC) timer, which
provides a "user-mode visible" section containing a mirror of its
counter registers. This section must be mapped into user memory, which
is done below the VDSO data page.
When a supported clocksource is not in use, the VDSO functions will
return -ENOSYS, which causes libc to fall back on the standard syscall
path.
When support for neither of these clocksources is compiled into the
kernel at all, the VDSO still provides clock_gettime(), as the coarse
realtime/monotonic clocks can still be implemented. However,
gettimeofday() is not provided in this case as nothing can be done
without a suitable clocksource. This causes the symbol lookup to fail
in libc and it will then always use the standard syscall path.
This patch includes a workaround for a bug in QEMU which results in
RDHWR on the CP0 count register always returning a constant (incorrect)
value. A fix for this has been submitted, and the workaround can be
removed after the fix has been in stable releases for a reasonable
amount of time.
A simple performance test which calls gettimeofday() 1000 times in a
loop and calculates the average execution time gives the following
results on a Malta + I6400 (running at 20MHz):
- Syscall: ~31000 ns
- VDSO (GIC): ~15000 ns
- VDSO (CP0): ~9500 ns
[markos.chandras@imgtec.com:
- Minor code re-arrangements in order for mappings to be made
in the order they appear to the process' address space.
- Move do_{monotonic, realtime} outside of the MIPS_CLOCK_VSYSCALL ifdef
- Use gic_get_usm_range so we can do the GIC mapping in the
arch/mips/kernel/vdso instead of the GIC irqchip driver]
Signed-off-by: Alex Smith <alex.smith@imgtec.com>
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11338/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Alex Smith [Mon, 12 Oct 2015 09:40:43 +0000 (10:40 +0100)]
irqchip: irq-mips-gic: Provide function to map GIC user section
The GIC provides a "user-mode visible" section containing a mirror of
the counter registers which can be mapped into user memory. This will
be used by the VDSO time function implementations, so provide a
function to map it in.
When the GIC is not enabled in Kconfig a dummy inline version of this
function is provided, along with "#define gic_present 0", so that we
don't have to litter the VDSO code with ifdefs.
[markos.chandras@imgtec.com:
- Move mapping code to arch/mips/kernel/vdso.c and use a resource
type to get the GIC usermode information
- Avoid renaming function arguments and use __gic_base_addr to hold
the base GIC address prior to ioremap.]
[ralf@linux-mips.org: Fix up gic_get_usm_range() to compile and make inline
again.]
Signed-off-by: Alex Smith <alex.smith@imgtec.com>
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Reviewed-by: Marc Zyngier <marc.zyngier@arm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Alex Smith <alex.smith@imgtec.com>
Cc: Markos Chandras <markos.chandras@imgtec.com>
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Patchwork: http://patchwork.linux-mips.org/patch/11281/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Alex Smith [Wed, 21 Oct 2015 08:54:38 +0000 (09:54 +0100)]
MIPS: Initial implementation of a VDSO
Add an initial implementation of a proper (i.e. an ELF shared library)
VDSO. With this commit it does not export any symbols, it only replaces
the current signal return trampoline page. A later commit will add user
implementations of gettimeofday()/clock_gettime().
To support both new toolchains and old ones which don't generate ABI
flags section, we define its content manually and then use a tool
(genvdso) to patch up the section to have the correct name and type.
genvdso also extracts symbol offsets ({,rt_}sigreturn) needed by the
kernel, and generates a C file containing a "struct mips_vdso_image"
containing both the VDSO data and these offsets. This C file is
compiled into the kernel.
On 64-bit kernels we require a different VDSO for each supported ABI,
so we may build up to 3 different VDSOs. The VDSO to use is selected by
the mips_abi structure.
A kernel/user shared data page is created and mapped below the VDSO
image. This is currently empty, but will be used by the user time
function implementations which are added later.
[markos.chandras@imgtec.com:
- Add more comments
- Move abi detection in genvdso.h since it's the get_symbol function
that needs it.
- Add an R6 specific way to calculate the base address of VDSO in order
to avoid the branch instruction which affects performance.
- Do not patch .gnu.attributes since it's not needed for dynamic linking.
- Simplify Makefile a little bit.
- checkpatch fixes
- Restrict VDSO support for binutils < 2.25 for pre-R6
- Include atomic64.h for O32 variant on MIPS64]
Signed-off-by: Alex Smith <alex.smith@imgtec.com>
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Cc: Matthew Fortune <matthew.fortune@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11337/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Bartlomiej Zolnierkiewicz [Mon, 14 Sep 2015 15:51:56 +0000 (17:51 +0200)]
MIPS: mpc30x_defconfig: Convert to use libata PATA drivers
IDE subsystem has been deprecated since 2009 and the majority
(if not all) of Linux distributions have switched to use
libata for ATA support exclusively. However there are still
some users (mostly old or/and embedded non-x86 systems) that
have not converted from using IDE subsystem to libata PATA
drivers. This doesn't seem to be good thing in the long-term
for Linux as while there is less and less PATA systems left
in use:
* testing efforts are divided between two subsystems
* having duplicate drivers for same hardware confuses users
This patch converts mpc30x_defconfig to use libata PATA
drivers.
PS This platform still uses "ide0=base[,ctl[,irq]]" hack in
its defconfig. The hack itself has been removed in 2008 and
this platform should be converted to using PATA platform host
driver (pata_platform) instead.
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Cc: linux-mips@linux-mips.org
Cc: linux-ide@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11141/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Bartlomiej Zolnierkiewicz [Mon, 14 Sep 2015 15:51:55 +0000 (17:51 +0200)]
MIPS: maltaup_xpa_defconfig: Convert to use libata PATA drivers
IDE subsystem has been deprecated since 2009 and the majority
(if not all) of Linux distributions have switched to use
libata for ATA support exclusively. However there are still
some users (mostly old or/and embedded non-x86 systems) that
have not converted from using IDE subsystem to libata PATA
drivers. This doesn't seem to be good thing in the long-term
for Linux as while there is less and less PATA systems left
in use:
* testing efforts are divided between two subsystems
* having duplicate drivers for same hardware confuses users
This patch converts maltaup_xpa_defconfig to use libata PATA
drivers (tc86c001 IDE host driver has no corresponding libata
driver yet so it is not converted).
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Cc: Paul Burton <paul.burton@imgtec.com>
Cc: Markos Chandras <markos.chandras@imgtec.com>
Cc: Steven J. Hill <Steven.Hill@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: linux-ide@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11140/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Bartlomiej Zolnierkiewicz [Mon, 14 Sep 2015 15:51:54 +0000 (17:51 +0200)]
MIPS: maltaup_defconfig: Convert to use libata PATA drivers
IDE subsystem has been deprecated since 2009 and the majority
(if not all) of Linux distributions have switched to use
libata for ATA support exclusively. However there are still
some users (mostly old or/and embedded non-x86 systems) that
have not converted from using IDE subsystem to libata PATA
drivers. This doesn't seem to be good thing in the long-term
for Linux as while there is less and less PATA systems left
in use:
* testing efforts are divided between two subsystems
* having duplicate drivers for same hardware confuses users
This patch converts maltaup_defconfig to use libata PATA
drivers.
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Cc: Paul Burton <paul.burton@imgtec.com>
Cc: Markos Chandras <markos.chandras@imgtec.com>
Cc: Steven J. Hill <Steven.Hill@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: linux-ide@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11142/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Bartlomiej Zolnierkiewicz [Mon, 14 Sep 2015 15:51:53 +0000 (17:51 +0200)]
MIPS: maltasmvp_eva_defconfig: Convert to use libata PATA drivers
IDE subsystem has been deprecated since 2009 and the majority
(if not all) of Linux distributions have switched to use
libata for ATA support exclusively. However there are still
some users (mostly old or/and embedded non-x86 systems) that
have not converted from using IDE subsystem to libata PATA
drivers. This doesn't seem to be good thing in the long-term
for Linux as while there is less and less PATA systems left
in use:
* testing efforts are divided between two subsystems
* having duplicate drivers for same hardware confuses users
This patch converts maltasmvp_eva_defconfig to use libata PATA
drivers.
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Cc: Paul Burton <paul.burton@imgtec.com>
Cc: Markos Chandras <markos.chandras@imgtec.com>
Cc: Steven J. Hill <Steven.Hill@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: linux-ide@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11139/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Bartlomiej Zolnierkiewicz [Mon, 14 Sep 2015 15:51:52 +0000 (17:51 +0200)]
MIPS: maltaaprp_defconfig: Convert to use libata PATA drivers
IDE subsystem has been deprecated since 2009 and the majority
(if not all) of Linux distributions have switched to use
libata for ATA support exclusively. However there are still
some users (mostly old or/and embedded non-x86 systems) that
have not converted from using IDE subsystem to libata PATA
drivers. This doesn't seem to be good thing in the long-term
for Linux as while there is less and less PATA systems left
in use:
* testing efforts are divided between two subsystems
* having duplicate drivers for same hardware confuses users
This patch converts maltaaprp_defconfig to use libata PATA
drivers.
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Cc: Paul Burton <paul.burton@imgtec.com>
Cc: Markos Chandras <markos.chandras@imgtec.com>
Cc: Steven J. Hill <Steven.Hill@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: linux-ide@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: b.zolnierkie@samsung.com
Patchwork: https://patchwork.linux-mips.org/patch/11137/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Bartlomiej Zolnierkiewicz [Mon, 14 Sep 2015 15:51:51 +0000 (17:51 +0200)]
MIPS: malta_qemu_32r6_defconfig: Convert to use libata PATA drivers
IDE subsystem has been deprecated since 2009 and the majority
(if not all) of Linux distributions have switched to use
libata for ATA support exclusively. However there are still
some users (mostly old or/and embedded non-x86 systems) that
have not converted from using IDE subsystem to libata PATA
drivers. This doesn't seem to be good thing in the long-term
for Linux as while there is less and less PATA systems left
in use:
* testing efforts are divided between two subsystems
* having duplicate drivers for same hardware confuses users
This patch converts malta_qemu_32r6_defconfig to use libata
PATA drivers.
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Cc: Markos Chandras <markos.chandras@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: linux-ide@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: b.zolnierkie@samsung.com
Patchwork: https://patchwork.linux-mips.org/patch/11138/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Bartlomiej Zolnierkiewicz [Mon, 14 Sep 2015 15:51:50 +0000 (17:51 +0200)]
MIPS: malta_kvm_guest_defconfig: Convert to use libata PATA drivers
IDE subsystem has been deprecated since 2009 and the majority
(if not all) of Linux distributions have switched to use
libata for ATA support exclusively. However there are still
some users (mostly old or/and embedded non-x86 systems) that
have not converted from using IDE subsystem to libata PATA
drivers. This doesn't seem to be good thing in the long-term
for Linux as while there is less and less PATA systems left
in use:
* testing efforts are divided between two subsystems
* having duplicate drivers for same hardware confuses users
This patch converts malta_kvm_guest_defconfig to use libata
PATA drivers (tc86c001 IDE host driver has no corresponding
libata driver yet so it is not converted).
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Cc: Paul Burton <paul.burton@imgtec.com>
Cc: Markos Chandras <markos.chandras@imgtec.com>
Cc: Sanjay Lal <sanjayl@kymasys.com>
Cc: linux-mips@linux-mips.org
Cc: linux-ide@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11136/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Bartlomiej Zolnierkiewicz [Mon, 14 Sep 2015 15:51:49 +0000 (17:51 +0200)]
MIPS: malta_kvm_defconfig: Convert to use libata PATA drivers
IDE subsystem has been deprecated since 2009 and the majority
(if not all) of Linux distributions have switched to use
libata for ATA support exclusively. However there are still
some users (mostly old or/and embedded non-x86 systems) that
have not converted from using IDE subsystem to libata PATA
drivers. This doesn't seem to be good thing in the long-term
for Linux as while there is less and less PATA systems left
in use:
* testing efforts are divided between two subsystems
* having duplicate drivers for same hardware confuses users
This patch converts malta_kvm_defconfig to use libata PATA
drivers (tc86c001 IDE host driver has no corresponding libata
driver yet so it is not converted).
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Cc: Paul Burton <paul.burton@imgtec.com>
Cc: Markos Chandras <markos.chandras@imgtec.com>
Cc: Sanjay Lal <sanjayl@kymasys.com>
Cc: linux-mips@linux-mips.org
Cc: linux-ide@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11135/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Bartlomiej Zolnierkiewicz [Mon, 14 Sep 2015 15:51:48 +0000 (17:51 +0200)]
MIPS: malta_defconfig: Convert to use libata PATA drivers
IDE subsystem has been deprecated since 2009 and the majority
(if not all) of Linux distributions have switched to use
libata for ATA support exclusively. However there are still
some users (mostly old or/and embedded non-x86 systems) that
have not converted from using IDE subsystem to libata PATA
drivers. This doesn't seem to be good thing in the long-term
for Linux as while there is less and less PATA systems left
in use:
* testing efforts are divided between two subsystems
* having duplicate drivers for same hardware confuses users
This patch converts malta_defconfig to use libata PATA
drivers.
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Cc: Paul Burton <paul.burton@imgtec.com>
Cc: Markos Chandras <markos.chandras@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: linux-ide@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11134/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Bartlomiej Zolnierkiewicz [Mon, 14 Sep 2015 15:51:47 +0000 (17:51 +0200)]
MIPS: lemote2f_defconfig: Convert to use libata PATA drivers
IDE subsystem has been deprecated since 2009 and the majority
(if not all) of Linux distributions have switched to use
libata for ATA support exclusively. However there are still
some users (mostly old or/and embedded non-x86 systems) that
have not converted from using IDE subsystem to libata PATA
drivers. This doesn't seem to be good thing in the long-term
for Linux as while there is less and less PATA systems left
in use:
* testing efforts are divided between two subsystems
* having duplicate drivers for same hardware confuses users
This patch converts lemote2f_defconfig to use libata PATA
drivers.
PS This platform uses CS5536 chipset which (due to historical
reasons) has basic support in AMD/nVidia PATA host driver and
full support in a newer CS5536 PATA one (pata_cs5536). Thus
most likely this platform should switch to using the latter
host driver.
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Cc: Huacai Chen <chenhc@lemote.com>
Cc: linux-mips@linux-mips.org
Cc: linux-ide@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11133/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Bartlomiej Zolnierkiewicz [Mon, 14 Sep 2015 15:51:46 +0000 (17:51 +0200)]
MIPS: lasat_defconfig: Convert to use libata PATA drivers
IDE subsystem has been deprecated since 2009 and the majority
(if not all) of Linux distributions have switched to use
libata for ATA support exclusively. However there are still
some users (mostly old or/and embedded non-x86 systems) that
have not converted from using IDE subsystem to libata PATA
drivers. This doesn't seem to be good thing in the long-term
for Linux as while there is less and less PATA systems left
in use:
* testing efforts are divided between two subsystems
* having duplicate drivers for same hardware confuses users
This patch converts lasat_defconfig to use libata PATA
drivers.
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Cc: Brian Murphy <brian@murphy.dk>
Cc: linux-mips@linux-mips.org
Cc: linux-ide@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11132/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Bartlomiej Zolnierkiewicz [Mon, 14 Sep 2015 15:51:45 +0000 (17:51 +0200)]
MIPS: fuloong2e_defconfig: Convert to use libata PATA drivers
IDE subsystem has been deprecated since 2009 and the majority
(if not all) of Linux distributions have switched to use
libata for ATA support exclusively. However there are still
some users (mostly old or/and embedded non-x86 systems) that
have not converted from using IDE subsystem to libata PATA
drivers. This doesn't seem to be good thing in the long-term
for Linux as while there is less and less PATA systems left
in use:
* testing efforts are divided between two subsystems
* having duplicate drivers for same hardware confuses users
This patch converts fuloong2e_defconfig to use libata PATA
drivers.
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Cc: Wu Zhangjin <wuzhangjin@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: linux-ide@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11131/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Bartlomiej Zolnierkiewicz [Mon, 14 Sep 2015 15:51:44 +0000 (17:51 +0200)]
MIPS: e55_defconfig: Convert to use libata PATA drivers
IDE subsystem has been deprecated since 2009 and the majority
(if not all) of Linux distributions have switched to use
libata for ATA support exclusively. However there are still
some users (mostly old or/and embedded non-x86 systems) that
have not converted from using IDE subsystem to libata PATA
drivers. This doesn't seem to be good thing in the long-term
for Linux as while there is less and less PATA systems left
in use:
* testing efforts are divided between two subsystems
* having duplicate drivers for same hardware confuses users
This patch converts e55_defconfig to use libata PATA drivers.
PS This platform still uses "ide0=base[,ctl[,irq]]" hack in
its defconfig. The hack itself has been removed in 2008 and
this platform should be converted to using PATA platform host
driver (pata_platform) instead.
Cc: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Bartlomiej Zolnierkiewicz [Mon, 14 Sep 2015 15:51:43 +0000 (17:51 +0200)]
MIPS: capcella_defconfig: Convert to use libata PATA drivers
IDE subsystem has been deprecated since 2009 and the majority
(if not all) of Linux distributions have switched to use
libata for ATA support exclusively. However there are still
some users (mostly old or/and embedded non-x86 systems) that
have not converted from using IDE subsystem to libata PATA
drivers. This doesn't seem to be good thing in the long-term
for Linux as while there is less and less PATA systems left
in use:
* testing efforts are divided between two subsystems
* having duplicate drivers for same hardware confuses users
This patch converts capcella_defconfig to use libata PATA
drivers.
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Cc: linux-mips@linux-mips.org
Cc: linux-ide@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11129/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Bartlomiej Zolnierkiewicz [Mon, 14 Sep 2015 15:51:42 +0000 (17:51 +0200)]
MIPS: bigsur_defconfig: Convert to use libata PATA drivers
IDE subsystem has been deprecated since 2009 and the majority
(if not all) of Linux distributions have switched to use
libata for ATA support exclusively. However there are still
some users (mostly old or/and embedded non-x86 systems) that
have not converted from using IDE subsystem to libata PATA
drivers. This doesn't seem to be good thing in the long-term
for Linux as while there is less and less PATA systems left
in use:
* testing efforts are divided between two subsystems
* having duplicate drivers for same hardware confuses users
This patch converts bigsur_defconfig to use libata PATA
drivers (tc86c001 IDE host driver has no corresponding libata
driver yet so it is not converted).
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Cc: linux-mips@linux-mips.org
Cc: linux-ide@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11128/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Paul Burton [Tue, 22 Sep 2015 19:03:37 +0000 (12:03 -0700)]
MIPS: Extend hardware table walking support to MIPS64
Extend the existing support for Hardware Table Walking (HTW) to MIPS64
systems by supporting PMDs & setting the pointer size bit in PWSize,
then ceasing to blacklist HTW on MIPS64 systems.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: Steven J. Hill <Steven.Hill@imgtec.com>
Cc: Joshua Kinard <kumba@gentoo.org>
Cc: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com>
Cc: Maciej W. Rozycki <macro@linux-mips.org>
Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
Cc: linux-kernel@vger.kernel.org
Cc: James Hogan <james.hogan@imgtec.com>
Cc: Markos Chandras <markos.chandras@imgtec.com>
Patchwork: https://patchwork.linux-mips.org/patch/11224/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Paul Burton [Tue, 22 Sep 2015 18:58:43 +0000 (11:58 -0700)]
MIPS: Malta: Register UP SMP ops if all else fails
If we fail to register any real SMP implementations, fall back to
registering the dummy UP implementation. Otherwise when we build an SMP
kernel & run it on a system where the SMP implementations fail to probe
(eg. QEMU) the kernel will perform a NULL dereference attempting to call
mp_ops->smp_setup() from plat_smp_setup().
Notably this fixes booting kernels with CPS SMP enabled on QEMU, which
doesn't currently implement the CM, CPC or GIC.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: Peter Hurley <peter@hurleysoftware.com>
Cc: Rob Herring <robh@kernel.org>
Cc: linux-kernel@vger.kernel.org
Cc: Markos Chandras <markos.chandras@imgtec.com>
Patchwork: https://patchwork.linux-mips.org/patch/11223/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Paul Burton [Tue, 22 Sep 2015 18:56:38 +0000 (11:56 -0700)]
MIPS: Malta: Setup RAM regions via DT
Move memory configuration to be performed via device tree for the Malta
board. This moves more Malta specific code to malta-dtshim.c, leaving
the rest of the mti-malta code a little more board-agnostic. This will
be useful to share more code between boards, with the device tree
providing the board specifics as intended.
Since we can't rely upon Malta boards running a bootloader capable of
handling devictrees & filling in the required information, a piece of
shim code (malta_dt_shim) is added to consume the (e)memsize variables
provided as part of the bootloader environment (or on the kernel command
line) then generate the DT memory node using the provided values.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: devicetree@vger.kernel.org
Cc: Kumar Gala <galak@codeaurora.org>
Cc: linux-kernel@vger.kernel.org
Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: James Hogan <james.hogan@imgtec.com>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Markos Chandras <markos.chandras@imgtec.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Patchwork: https://patchwork.linux-mips.org/patch/11222/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Paul Burton [Tue, 22 Sep 2015 18:56:37 +0000 (11:56 -0700)]
MIPS: Malta: Remove fw_memblock_t abstraction
The fw_getmdesc function & fw_memblock_t abstraction is only used by
Malta, and so far as I can tell serves no purpose beyond making the code
less clear than it could be. Remove the useless level of abstraction.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Cc: James Hogan <james.hogan@imgtec.com>
Cc: Markos Chandras <markos.chandras@imgtec.com>
Patchwork: https://patchwork.linux-mips.org/patch/11221/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Paul Burton [Tue, 22 Sep 2015 18:56:36 +0000 (11:56 -0700)]
MIPS: Malta: Split obj-y entries across lines
Split the obj-y entries to their own lines such that it's easier to see
what's going on when adding or removing entries.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: Markos Chandras <markos.chandras@imgtec.com>
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11220/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Paul Burton [Tue, 22 Sep 2015 18:42:53 +0000 (11:42 -0700)]
MIPS: Allow RIXI for 32-bit kernels on MIPS64
Commit
a68d09a156b2 ("MIPS: Don't use RI/XI with 32-bit kernels on
64-bit CPUs") prevented use of RIXI on MIPS64 systems, stating that the
"TLB handlers cannot handle this case". What they actually couldn't
handle was cases where there were less fill bits in the Entry{Lo,Hi}
registers than bits used by software in PTEs. The handlers can now deal
with this case, so enable RIXI for MIPS32 kernels on MIPS64 systems.
Note that beyond the obvious benefits provided by having RIXI on such
systems, this is required for systems implementing MIPSr6 where RIXI
cannot be disabled.
This reverts commit
a68d09a156b2 ("MIPS: Don't use RI/XI with 32-bit
kernels on 64-bit CPUs").
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: Joshua Kinard <kumba@gentoo.org>
Cc: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com>
Cc: Maciej W. Rozycki <macro@linux-mips.org>
Cc: linux-kernel@vger.kernel.org
Cc: James Hogan <james.hogan@imgtec.com>
Cc: Markos Chandras <markos.chandras@imgtec.com>
Patchwork: https://patchwork.linux-mips.org/patch/11219/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Paul Burton [Tue, 22 Sep 2015 18:42:52 +0000 (11:42 -0700)]
MIPS: tlbex: Avoid placing software PTE bits in Entry* PFN fields
Commit
748e787eb6de ("MIPS: Optimize TLB refill for RI/XI
configurations.") stopped explicitly clearing the bits used by software
in PTEs by making use of a rotate instruction that rotates them into the
fill bits of the Entry{Lo,Hi} register. This can only work if there are
actually enough fill bits in the register to cover the software
maintained bits, otherwise we end up writing those bits into the upper
bits of the PFN or PFNX field of the Entry{Lo,Hi} register.
Fix this by detecting the number of fill bits present in the
Entry{Lo,Hi} registers & explicitly clearing the software bits where
necessary.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: Steven J. Hill <Steven.Hill@imgtec.com>
Cc: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com>
Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
Cc: linux-kernel@vger.kernel.org
Cc: James Hogan <james.hogan@imgtec.com>
Cc: Markos Chandras <markos.chandras@imgtec.com>
Patchwork: https://patchwork.linux-mips.org/patch/11218/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Paul Burton [Tue, 22 Sep 2015 18:42:51 +0000 (11:42 -0700)]
MIPS: Tidy EntryLo bit definitions, add PFN
Tidy up the definition of the EntryLo RI & XI bits using BITS_PER_LONG
rather than #ifdef'ing on CONFIG_64BIT, and add a definition for the
offset to the PFN field for use by a later patch.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: Steven J. Hill <Steven.Hill@imgtec.com>
Cc: Maciej W. Rozycki <macro@linux-mips.org>
Cc: linux-kernel@vger.kernel.org
Cc: James Hogan <james.hogan@imgtec.com>
Cc: Markos Chandras <markos.chandras@imgtec.com>
Patchwork: https://patchwork.linux-mips.org/patch/11217/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Paul Burton [Tue, 22 Sep 2015 18:42:50 +0000 (11:42 -0700)]
MIPS: tlbex: Share MIPS32 32 bit phys & MIPS64 64 bit phys code
The code in build_update_entries for 64 bit physical addresses on a
MIPS64 CPU and 32 bit physical addresses on a MIPS32 CPU is now
identical, with the exception of r4k bug workaround in the latter which
would simply not apply to the former. Remove the duplication and some
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: Steven J. Hill <Steven.Hill@imgtec.com>
Cc: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com>
Cc: linux-kernel@vger.kernel.org
Cc: James Hogan <james.hogan@imgtec.com>
Cc: Markos Chandras <markos.chandras@imgtec.com>
Patchwork: https://patchwork.linux-mips.org/patch/11216/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Paul Burton [Tue, 22 Sep 2015 18:42:49 +0000 (11:42 -0700)]
MIPS: tlbex: Remove some RIXI redundancy
The cpu_has_rixi cases in build_update_entries are now identical to the
non-RIXI cases with the one exception of the r45k_bvahwbug case which is
hardcoded as never happening anyway & presumably was either missed from
the RIXI path or would never happen on a CPU with RIXI support. Remove
the redundant checks & duplication.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: Steven J. Hill <Steven.Hill@imgtec.com>
Cc: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com>
Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
Cc: linux-kernel@vger.kernel.org
Cc: James Hogan <james.hogan@imgtec.com>
Cc: Markos Chandras <markos.chandras@imgtec.com>
Patchwork: https://patchwork.linux-mips.org/patch/11215/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Paul Burton [Tue, 22 Sep 2015 18:42:48 +0000 (11:42 -0700)]
MIPS: tlbex: Stop open-coding build_convert_pte_to_entrylo
Make use of build_convert_pte_to_entrylo in the RIXI cases within
build_update_entries rather than open-coding it 4 times.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: Steven J. Hill <Steven.Hill@imgtec.com>
Cc: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com>
Cc: linux-kernel@vger.kernel.org
Cc: James Hogan <james.hogan@imgtec.com>
Cc: Markos Chandras <markos.chandras@imgtec.com>
Patchwork: https://patchwork.linux-mips.org/patch/11214/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Paul Burton [Tue, 22 Sep 2015 18:24:20 +0000 (11:24 -0700)]
MIPS: Always use r4k_wait_irqoff for MIPSr6
Prior to release 6 of the MIPS architecture it has been implementation
dependent whether masked interrupts cause a wait instruction to return,
so the kernel has effectively had to maintain a whitelist of cores upon
which it is safe to use the r4k_wait_irqoff cpu_wait implementation.
With MIPSr6 this is no longer implementation dependent and
r4k_wait_irqoff can always be used.
Remove the existing I6400 case which will no longer ever be hit, and was
incorrect anyway since I6400 & r6 in general doesn't have the WII bit.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com>
Cc: linux-kernel@vger.kernel.org
Cc: James Hogan <james.hogan@imgtec.com>
Cc: Markos Chandras <markos.chandras@imgtec.com>
Patchwork: https://patchwork.linux-mips.org/patch/11210/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Paul Burton [Tue, 22 Sep 2015 18:12:18 +0000 (11:12 -0700)]
MIPS: CM, CPC: Ensure core-other GCRs reflect the correct core
Ensure the update to which core the core-other GCR regions reflect has
taken place before any core-other GCRs are accessed by placing a memory
barrier (sync instruction) between the write to the core-other registers
and any such GCR accesses.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: linux-kernel@vger.kernel.org
Cc: Markos Chandras <markos.chandras@imgtec.com>
Patchwork: https://patchwork.linux-mips.org/patch/11209/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Paul Burton [Tue, 22 Sep 2015 18:12:17 +0000 (11:12 -0700)]
MIPS: CM: make use of mips_cm_{lock,unlock}_other
Document that CPC core-other accesses must take place within the bounds
of the CM lock, and begin using the CM lock functions where we access
the GCRs of other cores. This is required because with CM3 the CPC began
using GCR_CL_OTHER instead of CPC_CL_OTHER.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Andrew Bresticker <abrestic@chromium.org>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: linux-kernel@vger.kernel.org
Cc: Niklas Cassel <niklas.cassel@axis.com>
Cc: Ezequiel Garcia <ezequiel.garcia@imgtec.com>
Cc: Markos Chandras <markos.chandras@imgtec.com>
Patchwork: https://patchwork.linux-mips.org/patch/11208/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Paul Burton [Tue, 22 Sep 2015 18:12:16 +0000 (11:12 -0700)]
MIPS: CM: Introduce core-other locking functions
Introduce mips_cm_lock_other & mips_cm_unlock_other, mirroring the
existing CPC equivalents, in order to lock access from the current core
to another via the core-other GCR region. This hasn't been required in
the past but with CM3 the CPC starts using GCR_CL_OTHER rather than
CPC_CL_OTHER and this will be required for safety.
[ralf@linux-mips.org: Fix merge conflict.]
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Cc: James Hogan <james.hogan@imgtec.com>
Cc: Markos Chandras <markos.chandras@imgtec.com>
Patchwork: https://patchwork.linux-mips.org/patch/11207/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Paul Burton [Tue, 22 Sep 2015 18:12:15 +0000 (11:12 -0700)]
MIPS: CM: Fix GCR_Cx_CONFIG PVPE mask
The PVPE (or PVP in >= CM3) field is 10 bits wide, but the mask
previously only covered the bottom 9 bits. Extend the mask to cover all
10 bits of the field.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Cc: James Hogan <james.hogan@imgtec.com>
Cc: Markos Chandras <markos.chandras@imgtec.com>
Patchwork: https://patchwork.linux-mips.org/patch/11206/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Paul Burton [Tue, 22 Sep 2015 18:12:14 +0000 (11:12 -0700)]
MIPS: CPS: Warn if a core doesn't start
When debugging core bringup it is useful to see the state of the CPC
sequencer, so output that value if the core hasn't started within a
reasonable amount of time (1 second). This avoids simply appearing to
the user to hang if a secondary core fails to start.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Andrew Bresticker <abrestic@chromium.org>
Cc: linux-kernel@vger.kernel.org
Cc: Niklas Cassel <niklas.cassel@axis.com>
Cc: Ezequiel Garcia <ezequiel.garcia@imgtec.com>
Cc: Markos Chandras <markos.chandras@imgtec.com>
Patchwork: https://patchwork.linux-mips.org/patch/11205/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Paul Burton [Tue, 22 Sep 2015 18:12:13 +0000 (11:12 -0700)]
MIPS: CPS: Skip Config1 presence check
The Config1 register is architecturally defined as required, and is thus
present in all systems which may make use of cps-vec.S. Skip the check
for its presence via the Config.M bit.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: Markos Chandras <markos.chandras@imgtec.com>
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11204/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Paul Burton [Tue, 22 Sep 2015 18:12:12 +0000 (11:12 -0700)]
MIPS: CPS: Read CM GCR base from cop0
Rather than patching the start of mips_cps_core_entry to provide the
base address of the CM GCRs, simply read that base address from the cop0
CMGCRBase register, converting from the physical address to an uncached
virtual address.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Andrew Bresticker <abrestic@chromium.org>
Cc: linux-kernel@vger.kernel.org
Cc: Niklas Cassel <niklas.cassel@axis.com>
Cc: Ezequiel Garcia <ezequiel.garcia@imgtec.com>
Cc: Markos Chandras <markos.chandras@imgtec.com>
Patchwork: https://patchwork.linux-mips.org/patch/11203/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Paul Burton [Tue, 22 Sep 2015 18:12:11 +0000 (11:12 -0700)]
MIPS: CPS: Early debug using an ns16550-compatible UART
Provide support for outputting early debug information, in the form of
various register values should an exception occur, during the early
bringup of secondary cores. This code requires an ns16550-compatible
UART accessible from the secondary core, and is written in assembly due
to the environment in which such early exceptions occur where way may
not have a stack, be coherent or even have initialised caches.
[ralf@linux-mips.org: Fix merge conflict.]
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: Steven J. Hill <Steven.Hill@imgtec.com>
Cc: Andrew Bresticker <abrestic@chromium.org>
Cc: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com>
Cc: Maciej W. Rozycki <macro@linux-mips.org>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: linux-kernel@vger.kernel.org
Cc: James Hogan <james.hogan@imgtec.com>
Cc: Markos Chandras <markos.chandras@imgtec.com>
Patchwork: https://patchwork.linux-mips.org/patch/11202/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
James Hogan [Tue, 10 Nov 2015 17:06:37 +0000 (17:06 +0000)]
MIPS: Fix duplicate CP0_* definitions.
Remove the definition in locore.S and move a few of the other similar
definitions in asm/mipsregs.h too. CP0_INTCTL, CP0_SRSCTL, & CP0_SRSMAP
are unused so they're just dropped instead. CP0_DDATA_LO is left where
it is as I have patches to eliminate its use in locore.S and it
otherwise is unlikely to need to be used from assembly code.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Paul Burton <paul.burton@imgtec.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Gleb Natapov <gleb@kernel.org>
Cc: linux-mips@linux-mips.org
Cc: kvm@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11461/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
David Daney [Thu, 29 Oct 2015 22:54:48 +0000 (00:54 +0200)]
MIPS: OCTEON: omit ELF NOTE segments
OCTEON Pre-SDK-1.8.1 bootloaders can not handle PT_NOTE program headers,
so do not emit them.
Before the patch:
$ readelf --program-headers octeon-vmlinux
Elf file type is EXEC (Executable file)
Entry point 0xffffffff815d09d0
There are 2 program headers, starting at offset 64
Program Headers:
Type Offset VirtAddr PhysAddr
FileSiz MemSiz Flags Align
LOAD 0x0000000000001000 0xffffffff81100000 0xffffffff81100000
0x0000000000b57f80 0x0000000001b86360 RWE 1000
NOTE 0x00000000004e02e0 0xffffffff815df2e0 0xffffffff815df2e0
0x0000000000000024 0x0000000000000024 R 4
After the patch:
$ readelf --program-headers octeon-vmlinux
Elf file type is EXEC (Executable file)
Entry point 0xffffffff815d09d0
There are 1 program headers, starting at offset 64
Program Headers:
Type Offset VirtAddr PhysAddr
FileSiz MemSiz Flags Align
LOAD 0x0000000000001000 0xffffffff81100000 0xffffffff81100000
0x0000000000b57f80 0x0000000001b86360 RWE 1000
The patch was tested on DSR-1000N router.
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Cc: Matthew Fortune <Matthew.Fortune@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11403/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Aaro Koskinen [Thu, 29 Oct 2015 22:54:47 +0000 (00:54 +0200)]
MIPS: vmlinux: discard .MIPS.abiflags
Discard .MIPS.abiflags from vmlinux. It's not needed and will cause
issues e.g. with old OCTEON bootloaders that cannot tolerate
additional program headers.
Before the patch:
$ readelf --program-headers octeon-vmlinux
Elf file type is EXEC (Executable file)
Entry point 0xffffffff815d09d0
There are 3 program headers, starting at offset 64
Program Headers:
Type Offset VirtAddr PhysAddr
FileSiz MemSiz Flags Align
ABIFLAGS 0x00000000005e77f0 0xffffffff816e67f0 0xffffffff816e67f0
0x0000000000000018 0x0000000000000018 R 8
LOAD 0x0000000000001000 0xffffffff81100000 0xffffffff81100000
0x0000000000b57f80 0x0000000001b86360 RWE 1000
NOTE 0x00000000004e02e0 0xffffffff815df2e0 0xffffffff815df2e0
0x0000000000000024 0x0000000000000024 R 4
After the patch:
$ readelf --program-headers octeon-vmlinux
Elf file type is EXEC (Executable file)
Entry point 0xffffffff815d09d0
There are 2 program headers, starting at offset 64
Program Headers:
Type Offset VirtAddr PhysAddr
FileSiz MemSiz Flags Align
LOAD 0x0000000000001000 0xffffffff81100000 0xffffffff81100000
0x0000000000b57f80 0x0000000001b86360 RWE 1000
NOTE 0x00000000004e02e0 0xffffffff815df2e0 0xffffffff815df2e0
0x0000000000000024 0x0000000000000024 R 4
Suggested-by: Matthew Fortune <matthew.fortune@imgtec.com>
Suggested-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Cc: linux-mips@linux-mips.org
Cc: David Daney <ddaney.cavm@gmail.com>
Patchwork: https://patchwork.linux-mips.org/patch/11402/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Petri Gynther [Mon, 19 Oct 2015 18:44:24 +0000 (11:44 -0700)]
MIPS: Switch BMIPS5000 to use r4k_wait_irqoff()
BCM7425 CPU Interface Zephyr Processor, pages 5-309 and 5-310
BCM7428B0 CPU Interface Zephyr Processor, pages 5-337 and 5-338
WAIT instruction:
Thread enters wait state. No instructions are executed until an
interrupt occurs. The processor's clocks are stopped if both threads
are in idle mode.
Description:
Execution of this instruction puts the thread into wait state, an idle
mode in which no instructions are fetched or executed. The thread remains
in wait state until an interrupt occurs that is not masked by the
interrupt mask field in the Status register. Then, if interrupts are
enabled by the IE bit in the Status register, the interrupt is serviced.
The ERET instruction returns to the instruction following the WAIT
instruction. If interrupts are disabled, the processor resumes executing
instructions with the next sequential instruction.
Programming notes:
The WAIT instruction should be executed while interrupts are disabled
by the IE bit in the Status register. This avoids a potential timing
hazard, which occurs if an interrupt is taken between testing the counter
and executing the WAIT instruction. In this hazard case, the interrupt
will have been completed before the WAIT instruction is executed, so
the processor will remain indefinitely in wait state until the next
interrupt.
Signed-off-by: Petri Gynther <pgynther@google.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Cc: cernekee@gmail.com
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11322/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Petri Gynther [Mon, 19 Oct 2015 18:49:52 +0000 (11:49 -0700)]
MIPS: add nmi_enter() + nmi_exit() to nmi_exception_handler()
We need to enter NMI context when NMI interrupt fires.
Signed-off-by: Petri Gynther <pgynther@google.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11323/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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