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-rw-r--r--target/linux/patches/2.6.37/brcm.patch169
1 files changed, 169 insertions, 0 deletions
diff --git a/target/linux/patches/2.6.37/brcm.patch b/target/linux/patches/2.6.37/brcm.patch
new file mode 100644
index 000000000..10a9a4947
--- /dev/null
+++ b/target/linux/patches/2.6.37/brcm.patch
@@ -0,0 +1,169 @@
+--- linux-2.6.36.orig/arch/mips/bcm47xx/Makefile 2010-10-20 22:30:22.000000000 +0200
++++ linux-2.6.36/arch/mips/bcm47xx/Makefile 2010-12-22 16:39:15.000000000 +0100
+@@ -3,4 +3,4 @@
+ # under Linux.
+ #
+
+-obj-y := gpio.o irq.o nvram.o prom.o serial.o setup.o time.o wgt634u.o
++obj-y := gpio.o irq.o nvram.o prom.o serial.o setup.o time.o platform.o
+--- /dev/null Fri Jan 7 17:21:57 2011
++++ linux-2.6.36/arch/mips/bcm47xx/platform.c Fri Jan 7 17:21:42 2011
+@@ -0,0 +1,147 @@
++/*
++ * 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) 2010, 2011 Waldemar Brodkorb <wbx@openadk.org>
++ * Copyright © 2007, 2011 Thorsten Glaser <tg@freewrt.org>
++ */
++
++#include <linux/platform_device.h>
++#include <linux/module.h>
++#include <linux/mtd/physmap.h>
++#include <linux/ssb/ssb.h>
++
++#include <asm/mach-bcm47xx/bcm47xx.h>
++#include <asm/mach-bcm47xx/nvram.h>
++
++#define NVRAM_FLASH_SIZE 0x10000
++#define CFGFS_FLASH_SIZE (64 * 1024)
++
++static struct mtd_partition bcm47xx_partitions[] = {
++#define SLOT_CFE 0
++ {
++ .name = "cfe",
++ .offset = 0,
++ .size = 0x40000, /* 256k */
++ .mask_flags = MTD_WRITEABLE /* force read-only */
++ },
++#define SLOT_LINUX 1
++ {
++ .name = "linux",
++ .offset = 0,
++ .size = 0,
++ },
++#define SLOT_ROOTFS 2
++ {
++ .name = "rootfs",
++ .offset = 0,
++ .size = 0,
++ },
++#define SLOT_CFGFS 3
++ {
++ .name = "cfgfs",
++ .offset = 0,
++ .size = 0,
++ },
++#define SLOT_NVRAM 4
++ {
++ .name = "nvram",
++ .offset = 0,
++ .size = 0,
++ },
++};
++
++static struct physmap_flash_data bcm47xx_flash_data = {
++ .parts = bcm47xx_partitions,
++ .nr_parts = ARRAY_SIZE(bcm47xx_partitions)
++};
++
++static struct resource bcm47xx_flash_resource = {
++ .flags = IORESOURCE_MEM,
++};
++
++static struct platform_device bcm47xx_flash = {
++ .name = "physmap-flash",
++ .id = 0,
++ .dev = { .platform_data = &bcm47xx_flash_data, },
++ .resource = &bcm47xx_flash_resource,
++ .num_resources = 1,
++};
++
++static struct platform_device *bcm47xx_devices[] __initdata = {
++ &bcm47xx_flash,
++};
++
++struct bcm47xx_trx_header {
++#define BCM47XX_TRX_MAGIC 0x30524448
++ u32 magic;
++ u32 len;
++ u32 crc32;
++ u32 flag_version;
++ u32 offsets[3];
++};
++
++#define UPTODOWN(slot, psize) do { \
++ posn -= psize; left -= psize; \
++ bcm47xx_partitions[slot].offset = posn; \
++ bcm47xx_partitions[slot].size = psize; \
++} while (/* CONSTCOND */ 0)
++
++static int __init bcm47xx_register_devices(void)
++{
++ u32 flash_size;
++ size_t left, posn;
++ struct ssb_mipscore *mcore = &ssb_bcm47xx.mipscore;
++ struct bcm47xx_trx_header *trx_hdr;
++
++ trx_hdr = (void *)KSEG1ADDR(mcore->flash_window + 0x40000);
++
++ /* devices might have 2, 4 or 8 MB flash size */
++#ifdef BCM47XX_OVERRIDE_FLASHSIZE
++ flash_size = BCM47XX_OVERRIDE_FLASHSIZE;
++ mcore->flash_window_size = flash_size;
++#define BCM47XX_OVERRODE_FLASHSIZE " (overridden)"
++#else
++ flash_size = mcore->flash_window_size;
++#define BCM47XX_OVERRODE_FLASHSIZE ""
++#endif
++ printk(KERN_INFO "FLASH SIZE%s: %x\n", BCM47XX_OVERRODE_FLASHSIZE,
++ flash_size);
++
++ left = flash_size - 0x40000;
++ posn = flash_size;
++ UPTODOWN(SLOT_NVRAM, NVRAM_FLASH_SIZE);
++ UPTODOWN(SLOT_CFGFS, CFGFS_FLASH_SIZE);
++ bcm47xx_partitions[SLOT_LINUX].offset = 0x40000;
++ bcm47xx_partitions[SLOT_LINUX].size = left;
++
++ if (trx_hdr->magic == BCM47XX_TRX_MAGIC) {
++ bcm47xx_partitions[SLOT_ROOTFS].offset =
++ bcm47xx_partitions[SLOT_LINUX].offset +
++ trx_hdr->offsets[1];
++ bcm47xx_partitions[SLOT_ROOTFS].size =
++ bcm47xx_partitions[SLOT_LINUX].size -
++ trx_hdr->offsets[1];
++ } else
++ printk("bcm47xx/platform: no TRX header found\n");
++
++ printk(KERN_INFO "=== Flash map dump ===\n");
++ for (posn = 0; posn < bcm47xx_flash_data.nr_parts; ++posn)
++ printk(KERN_INFO " #%u %08X @%08X '%s'\n",
++ (unsigned int)posn,
++ (unsigned int)bcm47xx_partitions[posn].size,
++ (unsigned int)bcm47xx_partitions[posn].offset,
++ bcm47xx_partitions[posn].name);
++ printk(KERN_INFO "=== Hope this works, have a nice day\n");
++
++ bcm47xx_flash_data.width = mcore->flash_buswidth;
++ bcm47xx_flash_resource.start = mcore->flash_window;
++ bcm47xx_flash_resource.end = mcore->flash_window
++ + mcore->flash_window_size
++ - 1;
++ return platform_add_devices(bcm47xx_devices,
++ ARRAY_SIZE(bcm47xx_devices));
++}
++
++device_initcall(bcm47xx_register_devices);
+--- linux-2.6.36.orig/drivers/ssb/driver_mipscore.c 2010-10-20 22:30:22.000000000 +0200
++++ linux-2.6.36/drivers/ssb/driver_mipscore.c 2010-12-22 16:38:53.000000000 +0100
+@@ -193,7 +193,7 @@
+ mcore->flash_buswidth = 2;
+ if (bus->chipco.dev) {
+ mcore->flash_window = 0x1c000000;
+- mcore->flash_window_size = 0x02000000;
++ mcore->flash_window_size = 0x00800000;
+ if ((ssb_read32(bus->chipco.dev, SSB_CHIPCO_FLASH_CFG)
+ & SSB_CHIPCO_CFG_DS16) == 0)
+ mcore->flash_buswidth = 1;