diff options
Diffstat (limited to 'target/linux/brcm-2.4/patches/004-flash.patch')
| -rw-r--r-- | target/linux/brcm-2.4/patches/004-flash.patch | 206 |
1 files changed, 167 insertions, 39 deletions
diff --git a/target/linux/brcm-2.4/patches/004-flash.patch b/target/linux/brcm-2.4/patches/004-flash.patch index 3511091ed2..4fbf3da7e9 100644 --- a/target/linux/brcm-2.4/patches/004-flash.patch +++ b/target/linux/brcm-2.4/patches/004-flash.patch @@ -1,6 +1,6 @@ -diff -Nur linux-2.4.32/drivers/mtd/devices/Config.in linux-2.4.32-flash/drivers/mtd/devices/Config.in ---- linux-2.4.32/drivers/mtd/devices/Config.in 2003-06-13 16:51:34.000000000 +0200 -+++ linux-2.4.32-flash/drivers/mtd/devices/Config.in 2006-03-27 17:10:51.000000000 +0200 +diff -urN linux.old/drivers/mtd/devices/Config.in linux.dev/drivers/mtd/devices/Config.in +--- linux.old/drivers/mtd/devices/Config.in 2006-06-22 17:35:39.000000000 +0200 ++++ linux.dev/drivers/mtd/devices/Config.in 2006-06-21 21:41:24.000000000 +0200 @@ -5,6 +5,7 @@ mainmenu_option next_comment @@ -9,9 +9,9 @@ diff -Nur linux-2.4.32/drivers/mtd/devices/Config.in linux-2.4.32-flash/drivers/ dep_tristate ' Ramix PMC551 PCI Mezzanine RAM card support' CONFIG_MTD_PMC551 $CONFIG_MTD $CONFIG_PCI if [ "$CONFIG_MTD_PMC551" = "y" -o "$CONFIG_MTD_PMC551" = "m" ]; then bool ' PMC551 256M DRAM Bugfix' CONFIG_MTD_PMC551_BUGFIX -diff -Nur linux-2.4.32/drivers/mtd/devices/Makefile linux-2.4.32-flash/drivers/mtd/devices/Makefile ---- linux-2.4.32/drivers/mtd/devices/Makefile 2002-11-29 00:53:13.000000000 +0100 -+++ linux-2.4.32-flash/drivers/mtd/devices/Makefile 2006-03-27 17:10:51.000000000 +0200 +diff -urN linux.old/drivers/mtd/devices/Makefile linux.dev/drivers/mtd/devices/Makefile +--- linux.old/drivers/mtd/devices/Makefile 2006-06-22 17:35:39.000000000 +0200 ++++ linux.dev/drivers/mtd/devices/Makefile 2006-06-21 21:41:24.000000000 +0200 @@ -3,6 +3,8 @@ # # $Id: Makefile,v 1.4 2001/06/26 21:10:05 spse Exp $ @@ -29,9 +29,9 @@ diff -Nur linux-2.4.32/drivers/mtd/devices/Makefile linux-2.4.32-flash/drivers/m obj-$(CONFIG_MTD_DOC1000) += doc1000.o obj-$(CONFIG_MTD_DOC2000) += doc2000.o obj-$(CONFIG_MTD_DOC2001) += doc2001.o -diff -Nur linux-2.4.32/drivers/mtd/devices/sflash.c linux-2.4.32-flash/drivers/mtd/devices/sflash.c ---- linux-2.4.32/drivers/mtd/devices/sflash.c 1970-01-01 01:00:00.000000000 +0100 -+++ linux-2.4.32-flash/drivers/mtd/devices/sflash.c 2006-03-27 17:10:51.000000000 +0200 +diff -urN linux.old/drivers/mtd/devices/sflash.c linux.dev/drivers/mtd/devices/sflash.c +--- linux.old/drivers/mtd/devices/sflash.c 1970-01-01 01:00:00.000000000 +0100 ++++ linux.dev/drivers/mtd/devices/sflash.c 2006-06-21 21:41:24.000000000 +0200 @@ -0,0 +1,298 @@ +/* + * Broadcom SiliconBackplane chipcommon serial flash interface @@ -331,10 +331,10 @@ diff -Nur linux-2.4.32/drivers/mtd/devices/sflash.c linux-2.4.32-flash/drivers/m + +module_init(sflash_mtd_init); +module_exit(sflash_mtd_exit); -diff -Nur linux-2.4.32/drivers/mtd/maps/bcm947xx-flash.c linux-2.4.32-flash/drivers/mtd/maps/bcm947xx-flash.c ---- linux-2.4.32/drivers/mtd/maps/bcm947xx-flash.c 1970-01-01 01:00:00.000000000 +0100 -+++ linux-2.4.32-flash/drivers/mtd/maps/bcm947xx-flash.c 2006-03-27 17:07:27.000000000 +0200 -@@ -0,0 +1,416 @@ +diff -urN linux.old/drivers/mtd/maps/bcm947xx-flash.c linux.dev/drivers/mtd/maps/bcm947xx-flash.c +--- linux.old/drivers/mtd/maps/bcm947xx-flash.c 1970-01-01 01:00:00.000000000 +0100 ++++ linux.dev/drivers/mtd/maps/bcm947xx-flash.c 2006-06-23 18:08:46.000000000 +0200 +@@ -0,0 +1,544 @@ +/* + * Copyright (C) 2004 Florian Schirmer (jolt@tuxbox.org) + * Copyright (C) 2005 Waldemar Brodkorb <wbx@openwrt.org> @@ -377,13 +377,17 @@ diff -Nur linux-2.4.32/drivers/mtd/maps/bcm947xx-flash.c linux-2.4.32-flash/driv +#include <linux/module.h> +#include <linux/types.h> +#include <linux/kernel.h> -+#include <asm/io.h> ++#include <linux/wait.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/map.h> +#ifdef CONFIG_MTD_PARTITIONS +#include <linux/mtd/partitions.h> +#endif +#include <linux/config.h> ++#include <linux/squashfs_fs.h> ++#include <linux/jffs2.h> ++#include <linux/crc32.h> ++#include <asm/io.h> + +#include <typedefs.h> +#include <osl.h> @@ -521,7 +525,7 @@ diff -Nur linux-2.4.32/drivers/mtd/maps/bcm947xx-flash.c linux-2.4.32-flash/driv + + /* found a TRX header */ + if (le32_to_cpu(trx->magic) == TRX_MAGIC) { -+ goto done; ++ goto found; + } + } + @@ -530,47 +534,115 @@ diff -Nur linux-2.4.32/drivers/mtd/maps/bcm947xx-flash.c linux-2.4.32-flash/driv + mtd->name); + return -1; + -+ done: ++ found: + printk(KERN_NOTICE "bootloader size: %d\n", off); + return off; + +} + ++/* ++ * Copied from mtdblock.c ++ * ++ * Cache stuff... ++ * ++ * Since typical flash erasable sectors are much larger than what Linux's ++ * buffer cache can handle, we must implement read-modify-write on flash ++ * sectors for each block write requests. To avoid over-erasing flash sectors ++ * and to speed things up, we locally cache a whole flash sector while it is ++ * being written to until a different sector is required. ++ */ ++ ++static void erase_callback(struct erase_info *done) ++{ ++ wait_queue_head_t *wait_q = (wait_queue_head_t *)done->priv; ++ wake_up(wait_q); ++} ++ ++static int erase_write (struct mtd_info *mtd, unsigned long pos, ++ int len, const char *buf) ++{ ++ struct erase_info erase; ++ DECLARE_WAITQUEUE(wait, current); ++ wait_queue_head_t wait_q; ++ size_t retlen; ++ int ret; ++ ++ /* ++ * First, let's erase the flash block. ++ */ ++ ++ init_waitqueue_head(&wait_q); ++ erase.mtd = mtd; ++ erase.callback = erase_callback; ++ erase.addr = pos; ++ erase.len = len; ++ erase.priv = (u_long)&wait_q; ++ ++ set_current_state(TASK_INTERRUPTIBLE); ++ add_wait_queue(&wait_q, &wait); ++ ++ ret = MTD_ERASE(mtd, &erase); ++ if (ret) { ++ set_current_state(TASK_RUNNING); ++ remove_wait_queue(&wait_q, &wait); ++ printk (KERN_WARNING "erase of region [0x%lx, 0x%x] " ++ "on \"%s\" failed\n", ++ pos, len, mtd->name); ++ return ret; ++ } ++ ++ schedule(); /* Wait for erase to finish. */ ++ remove_wait_queue(&wait_q, &wait); ++ ++ /* ++ * Next, writhe data to flash. ++ */ ++ ++ ret = MTD_WRITE (mtd, pos, len, &retlen, buf); ++ if (ret) ++ return ret; ++ if (retlen != len) ++ return -EIO; ++ return 0; ++} ++ ++ ++ ++ +static int __init +find_root(struct mtd_info *mtd, size_t size, struct mtd_partition *part) +{ -+ struct trx_header *trx; -+ unsigned char buf[512]; -+ int off; ++ struct trx_header trx, *trx2; ++ unsigned char buf[512], *block; ++ int off, blocksize; ++ u32 i, crc = ~0; + size_t len; -+ int blocksize; -+ -+ trx = (struct trx_header *) buf; ++ struct squashfs_super_block *sb = (struct squashfs_super_block *) buf; + + blocksize = mtd->erasesize; + if (blocksize < 0x10000) + blocksize = 0x10000; + + for (off = (128*1024); off < size; off += blocksize) { -+ memset(buf, 0xe5, sizeof(buf)); ++ memset(&trx, 0xe5, sizeof(trx)); + + /* + * Read into buffer + */ -+ if (MTD_READ(mtd, off, sizeof(buf), &len, buf) || -+ len != sizeof(buf)) ++ if (MTD_READ(mtd, off, sizeof(trx), &len, (char *) &trx) || ++ len != sizeof(trx)) + continue; + + /* found a TRX header */ -+ if (le32_to_cpu(trx->magic) == TRX_MAGIC) { -+ part->offset = le32_to_cpu(trx->offsets[2]) ? : -+ le32_to_cpu(trx->offsets[1]); -+ part->size = le32_to_cpu(trx->len); ++ if (le32_to_cpu(trx.magic) == TRX_MAGIC) { ++ part->offset = le32_to_cpu(trx.offsets[2]) ? : ++ le32_to_cpu(trx.offsets[1]); ++ part->size = le32_to_cpu(trx.len); + + part->size -= part->offset; + part->offset += off; + -+ goto done; ++ goto found; + } + } + @@ -579,17 +651,73 @@ diff -Nur linux-2.4.32/drivers/mtd/maps/bcm947xx-flash.c linux-2.4.32-flash/driv + mtd->name); + return -1; + -+ done: ++ found: ++ if (part->size == 0) ++ return 0; ++ ++ if (MTD_READ(mtd, part->offset, sizeof(buf), &len, buf) || len != sizeof(buf)) ++ return 0; ++ ++ if (*((__u32 *) buf) == SQUASHFS_MAGIC) { ++ printk(KERN_INFO "%s: Filesystem type: squashfs, size=0x%x\n", mtd->name, (u32) sb->bytes_used); ++ ++ /* Update the squashfs partition size based on the superblock info */ ++ part->size = sb->bytes_used; ++ part->size += (mtd->erasesize - 1); ++ part->size &= ~(mtd->erasesize - 1); ++ } else if (*((__u16 *) buf) == JFFS2_MAGIC_BITMASK) { ++ printk(KERN_INFO "%s: Filesystem type: jffs2\n", mtd->name); ++ ++ /* Move the squashfs outside of the trx */ ++ part->size = 0; ++ } else { ++ printk(KERN_INFO "%s: Filesystem type: unknown\n", mtd->name); ++ return 0; ++ } ++ ++ if (trx.len != part->offset + part->size - off) { ++ /* Update the trx offsets and length */ ++ trx.len = part->offset + part->size - off; ++ ++ /* Update the trx crc32 */ ++ for (i = (u32) &(((struct trx_header *)NULL)->flag_version); i <= trx.len; i += sizeof(buf)) { ++ if (MTD_READ(mtd, off + i, sizeof(buf), &len, buf) || len != sizeof(buf)) ++ return 0; ++ crc = crc32_le(crc, buf, min(sizeof(buf), trx.len - i)); ++ } ++ trx.crc32 = crc; ++ ++ /* read first eraseblock from the trx */ ++ trx2 = block = kmalloc(mtd->erasesize, GFP_KERNEL); ++ if (MTD_READ(mtd, off, mtd->erasesize, &len, block) || len != mtd->erasesize) { ++ printk("Error accessing the first trx eraseblock\n"); ++ return 0; ++ } ++ ++ printk("Updating TRX offsets and length:\n"); ++ printk("old trx = [0x%08x, 0x%08x, 0x%08x], len=0x%08x crc32=0x%08x\n", trx2->offsets[0], trx2->offsets[1], trx2->offsets[2], trx2->len, trx2->crc32); ++ printk("new trx = [0x%08x, 0x%08x, 0x%08x], len=0x%08x crc32=0x%08x\n", trx.offsets[0], trx.offsets[1], trx.offsets[2], trx.len, trx.crc32); ++ ++ /* Write updated trx header to the flash */ ++ memcpy(block, &trx, sizeof(trx)); ++ if (mtd->unlock) ++ mtd->unlock(mtd, off, mtd->erasesize); ++ erase_write(mtd, off, mtd->erasesize, block); ++ if (mtd->sync) ++ mtd->sync(mtd); ++ kfree(block); ++ printk("Done\n"); ++ } ++ + return part->size; +} + +struct mtd_partition * __init +init_mtd_partitions(struct mtd_info *mtd, size_t size) +{ -+ + int cfe_size; + -+ cfe_size = find_cfe_size(mtd,size); ++ cfe_size = find_cfe_size(mtd,size); + + /* boot loader */ + bcm947xx_parts[0].offset = 0; @@ -751,9 +879,9 @@ diff -Nur linux-2.4.32/drivers/mtd/maps/bcm947xx-flash.c linux-2.4.32-flash/driv + +module_init(init_bcm947xx_map); +module_exit(cleanup_bcm947xx_map); -diff -Nur linux-2.4.32/drivers/mtd/maps/Config.in linux-2.4.32-flash/drivers/mtd/maps/Config.in ---- linux-2.4.32/drivers/mtd/maps/Config.in 2003-06-13 16:51:34.000000000 +0200 -+++ linux-2.4.32-flash/drivers/mtd/maps/Config.in 2006-01-31 22:03:50.000000000 +0100 +diff -urN linux.old/drivers/mtd/maps/Config.in linux.dev/drivers/mtd/maps/Config.in +--- linux.old/drivers/mtd/maps/Config.in 2006-06-22 17:35:39.000000000 +0200 ++++ linux.dev/drivers/mtd/maps/Config.in 2006-06-21 21:41:24.000000000 +0200 @@ -48,6 +48,7 @@ fi @@ -762,9 +890,9 @@ diff -Nur linux-2.4.32/drivers/mtd/maps/Config.in linux-2.4.32-flash/drivers/mtd dep_tristate ' Pb1000 MTD support' CONFIG_MTD_PB1000 $CONFIG_MIPS_PB1000 dep_tristate ' Pb1500 MTD support' CONFIG_MTD_PB1500 $CONFIG_MIPS_PB1500 dep_tristate ' Pb1100 MTD support' CONFIG_MTD_PB1100 $CONFIG_MIPS_PB1100 -diff -Nur linux-2.4.32/drivers/mtd/maps/Makefile linux-2.4.32-flash/drivers/mtd/maps/Makefile ---- linux-2.4.32/drivers/mtd/maps/Makefile 2003-06-13 16:51:34.000000000 +0200 -+++ linux-2.4.32-flash/drivers/mtd/maps/Makefile 2006-01-31 22:03:50.000000000 +0100 +diff -urN linux.old/drivers/mtd/maps/Makefile linux.dev/drivers/mtd/maps/Makefile +--- linux.old/drivers/mtd/maps/Makefile 2006-06-22 17:35:39.000000000 +0200 ++++ linux.dev/drivers/mtd/maps/Makefile 2006-06-21 21:41:24.000000000 +0200 @@ -3,6 +3,8 @@ # # $Id: Makefile,v 1.37 2003/01/24 14:26:38 dwmw2 Exp $ |