--- 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 + * Copyright © 2007, 2011 Thorsten Glaser + */ + +#include +#include +#include +#include + +#include +#include + +#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;