From 3490cba56f7f8a78ef4c94814c3181f09ce1e2ef Mon Sep 17 00:00:00 2001 From: Jon Loeliger Date: Wed, 23 Jan 2008 12:42:50 -0600 Subject: [PATCH] [POWERPC] Add initial iomega StorCenter board port. Use cuImage bootwrapper until U-Boot port is completed. Derived heavily from Linkstation port. Signed-off-by: Jon Loeliger Acked-by: Andy Wilcox Signed-off-by: Kumar Gala --- arch/powerpc/boot/Makefile | 3 +- arch/powerpc/boot/cuboot-824x.c | 53 +++++ arch/powerpc/platforms/embedded6xx/Kconfig | 23 ++- arch/powerpc/platforms/embedded6xx/Makefile | 1 + .../platforms/embedded6xx/storcenter.c | 192 ++++++++++++++++++ 5 files changed, 265 insertions(+), 7 deletions(-) create mode 100644 arch/powerpc/boot/cuboot-824x.c create mode 100644 arch/powerpc/platforms/embedded6xx/storcenter.c diff --git a/arch/powerpc/boot/Makefile b/arch/powerpc/boot/Makefile index fcca455a8c02..1e20aca48f45 100644 --- a/arch/powerpc/boot/Makefile +++ b/arch/powerpc/boot/Makefile @@ -57,7 +57,7 @@ src-wlib := string.S crt0.S stdio.c main.c \ 4xx.c ebony.c mv64x60.c mpsc.c mv64x60_i2c.c cuboot.c bamboo.c \ cpm-serial.c stdlib.c mpc52xx-psc.c planetcore.c uartlite.c \ fsl-soc.c mpc8xx.c pq2.c -src-plat := of.c cuboot-52xx.c cuboot-83xx.c cuboot-85xx.c holly.c \ +src-plat := of.c cuboot-52xx.c cuboot-824x.c cuboot-83xx.c cuboot-85xx.c holly.c \ cuboot-ebony.c treeboot-ebony.c prpmc2800.c \ ps3-head.S ps3-hvcall.S ps3.c treeboot-bamboo.c cuboot-8xx.c \ cuboot-pq2.c cuboot-sequoia.c treeboot-walnut.c cuboot-bamboo.c \ @@ -197,6 +197,7 @@ image-$(CONFIG_EP405) += zImage.ep405 image-$(CONFIG_8260) += cuImage.pq2 image-$(CONFIG_EP8248E) += zImage.ep8248e image-$(CONFIG_PPC_MPC52xx) += cuImage.52xx +image-$(CONFIG_STORCENTER) += cuImage.824x image-$(CONFIG_PPC_83xx) += cuImage.83xx image-$(CONFIG_PPC_85xx) += cuImage.85xx image-$(CONFIG_MPC7448HPC2) += cuImage.hpc2 diff --git a/arch/powerpc/boot/cuboot-824x.c b/arch/powerpc/boot/cuboot-824x.c new file mode 100644 index 000000000000..ced90c53de48 --- /dev/null +++ b/arch/powerpc/boot/cuboot-824x.c @@ -0,0 +1,53 @@ +/* + * Old U-boot compatibility for 824x + * + * Copyright (c) 2007 Freescale Semiconductor, 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 "ops.h" +#include "stdio.h" +#include "cuboot.h" + +#define TARGET_824x +#include "ppcboot.h" + +static bd_t bd; + + +static void platform_fixups(void) +{ + void *soc; + + dt_fixup_memory(bd.bi_memstart, bd.bi_memsize); + dt_fixup_mac_addresses(bd.bi_enetaddr); + dt_fixup_cpu_clocks(bd.bi_intfreq, bd.bi_busfreq / 4, bd.bi_busfreq); + + soc = find_node_by_devtype(NULL, "soc"); + if (soc) { + void *serial = NULL; + + setprop(soc, "bus-frequency", &bd.bi_busfreq, + sizeof(bd.bi_busfreq)); + + while ((serial = find_node_by_devtype(serial, "serial"))) { + if (get_parent(serial) != soc) + continue; + + setprop(serial, "clock-frequency", &bd.bi_busfreq, + sizeof(bd.bi_busfreq)); + } + } +} + +void platform_init(unsigned long r3, unsigned long r4, unsigned long r5, + unsigned long r6, unsigned long r7) +{ + CUBOOT_INIT(); + fdt_init(_dtb_start); + serial_console_init(); + platform_ops.fixups = platform_fixups; +} diff --git a/arch/powerpc/platforms/embedded6xx/Kconfig b/arch/powerpc/platforms/embedded6xx/Kconfig index 8924095a7928..6c8083757938 100644 --- a/arch/powerpc/platforms/embedded6xx/Kconfig +++ b/arch/powerpc/platforms/embedded6xx/Kconfig @@ -9,6 +9,8 @@ config LINKSTATION select FSL_SOC select PPC_UDBG_16550 if SERIAL_8250 select DEFAULT_UIMAGE + select MPC10X_OPENPIC + select MPC10X_BRIDGE help Select LINKSTATION if configuring for one of PPC- (MPC8241) based NAS systems from Buffalo Technology. So far only @@ -16,6 +18,19 @@ config LINKSTATION Linkstation-I HD-HLAN and HD-HGLAN versions, and PPC-based Terastation systems should be supported too. +config STORCENTER + bool "IOMEGA StorCenter" + depends on EMBEDDED6xx + select MPIC + select FSL_SOC + select PPC_UDBG_16550 if SERIAL_8250 + select WANT_DEVICE_TREE + select MPC10X_OPENPIC + select MPC10X_BRIDGE + help + Select STORCENTER if configuring for the iomega StorCenter + with an 8241 CPU in it. + config MPC7448HPC2 bool "Freescale MPC7448HPC2(Taiga)" depends on EMBEDDED6xx @@ -23,6 +38,7 @@ config MPC7448HPC2 select DEFAULT_UIMAGE select PPC_UDBG_16550 select WANT_DEVICE_TREE + select TSI108_BRIDGE help Select MPC7448HPC2 if configuring for Freescale MPC7448HPC2 (Taiga) platform @@ -33,6 +49,7 @@ config PPC_HOLLY select TSI108_BRIDGE select PPC_UDBG_16550 select WANT_DEVICE_TREE + select TSI108_BRIDGE help Select PPC_HOLLY if configuring for an IBM 750GX/CL Eval Board with TSI108/9 bridge (Hickory/Holly) @@ -48,17 +65,13 @@ config PPC_PRPMC2800 config TSI108_BRIDGE bool - depends on MPC7448HPC2 || PPC_HOLLY select PCI select MPIC select MPIC_WEIRD - default y config MPC10X_BRIDGE bool - depends on LINKSTATION select PPC_INDIRECT_PCI - default y config MV64X60 bool @@ -67,8 +80,6 @@ config MV64X60 config MPC10X_OPENPIC bool - depends on LINKSTATION - default y config MPC10X_STORE_GATHERING bool "Enable MPC10x store gathering" diff --git a/arch/powerpc/platforms/embedded6xx/Makefile b/arch/powerpc/platforms/embedded6xx/Makefile index 844947cfc5db..06524d3ffd2e 100644 --- a/arch/powerpc/platforms/embedded6xx/Makefile +++ b/arch/powerpc/platforms/embedded6xx/Makefile @@ -3,5 +3,6 @@ # obj-$(CONFIG_MPC7448HPC2) += mpc7448_hpc2.o obj-$(CONFIG_LINKSTATION) += linkstation.o ls_uart.o +obj-$(CONFIG_STORCENTER) += storcenter.o obj-$(CONFIG_PPC_HOLLY) += holly.o obj-$(CONFIG_PPC_PRPMC2800) += prpmc2800.o diff --git a/arch/powerpc/platforms/embedded6xx/storcenter.c b/arch/powerpc/platforms/embedded6xx/storcenter.c new file mode 100644 index 000000000000..e12e9d298716 --- /dev/null +++ b/arch/powerpc/platforms/embedded6xx/storcenter.c @@ -0,0 +1,192 @@ +/* + * Board setup routines for the storcenter + * + * Copyright 2007 (C) Oyvind Repvik (nail@nslu2-linux.org) + * Copyright 2007 Andy Wilcox, Jon Loeliger + * + * Based on linkstation.c by G. Liakhovetski + * + * This file is licensed under the terms of the GNU General Public License + * version 2. This program is licensed "as is" without any warranty of + * any kind, whether express or implied. + */ + +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include + +#include "mpc10x.h" + + +#ifdef CONFIG_MTD_PHYSMAP +static struct mtd_partition storcenter_physmap_partitions[] = { + { + .name = "kernel", + .offset = 0x000000, + .size = 0x170000, + }, + { + .name = "rootfs", + .offset = 0x170000, + .size = 0x590000, + }, + { + .name = "uboot", + .offset = 0x700000, + .size = 0x040000, + }, + { + .name = "config", + .offset = 0x740000, + .size = 0x0c0000, + }, +}; +#endif + + +static __initdata struct of_device_id storcenter_of_bus[] = { + { .name = "soc", }, + {}, +}; + +static int __init storcenter_device_probe(void) +{ + of_platform_bus_probe(NULL, storcenter_of_bus, NULL); + return 0; +} +machine_device_initcall(storcenter, storcenter_device_probe); + + +static int __init storcenter_add_bridge(struct device_node *dev) +{ +#ifdef CONFIG_PCI + int len; + struct pci_controller *hose; + const int *bus_range; + + printk("Adding PCI host bridge %s\n", dev->full_name); + + hose = pcibios_alloc_controller(dev); + if (hose == NULL) + return -ENOMEM; + + bus_range = of_get_property(dev, "bus-range", &len); + hose->first_busno = bus_range ? bus_range[0] : 0; + hose->last_busno = bus_range ? bus_range[1] : 0xff; + + setup_indirect_pci(hose, MPC10X_MAPB_CNFG_ADDR, MPC10X_MAPB_CNFG_DATA, 0); + + /* Interpret the "ranges" property */ + /* This also maps the I/O region and sets isa_io/mem_base */ + pci_process_bridge_OF_ranges(hose, dev, 1); +#endif + + return 0; +} + +static void __init storcenter_setup_arch(void) +{ + struct device_node *np; + +#ifdef CONFIG_MTD_PHYSMAP + physmap_set_partitions(storcenter_physmap_partitions, + ARRAY_SIZE(storcenter_physmap_partitions)); +#endif + + /* Lookup PCI host bridges */ + for_each_compatible_node(np, "pci", "mpc10x-pci") + storcenter_add_bridge(np); + + printk(KERN_INFO "IOMEGA StorCenter\n"); +} + +/* + * Interrupt setup and service. Interrrupts on the turbostation come + * from the four PCI slots plus onboard 8241 devices: I2C, DUART. + */ +static void __init storcenter_init_IRQ(void) +{ + struct mpic *mpic; + struct device_node *dnp; + const void *prop; + int size; + phys_addr_t paddr; + + dnp = of_find_node_by_type(NULL, "open-pic"); + if (dnp == NULL) + return; + + prop = of_get_property(dnp, "reg", &size); + if (prop == NULL) { + of_node_put(dnp); + return; + } + + paddr = (phys_addr_t)of_translate_address(dnp, prop); + mpic = mpic_alloc(dnp, paddr, MPIC_PRIMARY | MPIC_WANTS_RESET, + 4, 32, " EPIC "); + + of_node_put(dnp); + + BUG_ON(mpic == NULL); + + /* PCI IRQs */ + /* + * 2.6.12 patch: + * openpic_set_sources(0, 5, OpenPIC_Addr + 0x10200); + * openpic_set_sources(5, 2, OpenPIC_Addr + 0x11120); + * first_irq, num_irqs, __iomem first_ISR + * o_ss: i, src: 0, fdf50200 + * o_ss: i, src: 1, fdf50220 + * o_ss: i, src: 2, fdf50240 + * o_ss: i, src: 3, fdf50260 + * o_ss: i, src: 4, fdf50280 + * o_ss: i, src: 5, fdf51120 + * o_ss: i, src: 6, fdf51140 + */ + mpic_assign_isu(mpic, 0, paddr + 0x10200); + mpic_assign_isu(mpic, 1, paddr + 0x10220); + mpic_assign_isu(mpic, 2, paddr + 0x10240); + mpic_assign_isu(mpic, 3, paddr + 0x10260); + mpic_assign_isu(mpic, 4, paddr + 0x10280); + mpic_assign_isu(mpic, 5, paddr + 0x11120); + mpic_assign_isu(mpic, 6, paddr + 0x11140); + + mpic_init(mpic); +} + +static void storcenter_restart(char *cmd) +{ + local_irq_disable(); + + /* Set exception prefix high - to the firmware */ + _nmask_and_or_msr(0, MSR_IP); + + /* Wait for reset to happen */ + for (;;) ; +} + +static int __init storcenter_probe(void) +{ + unsigned long root = of_get_flat_dt_root(); + + return of_flat_dt_is_compatible(root, "storcenter"); +} + +define_machine(storcenter){ + .name = "IOMEGA StorCenter", + .probe = storcenter_probe, + .setup_arch = storcenter_setup_arch, + .init_IRQ = storcenter_init_IRQ, + .get_irq = mpic_get_irq, + .restart = storcenter_restart, + .calibrate_decr = generic_calibrate_decr, +}; -- 2.20.1