X-Git-Url: https://git.rohieb.name/openwrt.git/blobdiff_plain/dab3ca1324288a1abeb32590e1caec8848efe3e0..f35283ae4398fef78d72204142554689979a7bb6:/target/linux/brcm-2.6/patches/002-flash-map.patch?ds=inline diff --git a/target/linux/brcm-2.6/patches/002-flash-map.patch b/target/linux/brcm-2.6/patches/002-flash-map.patch index b8aeafa60..0f9c5ada9 100644 --- a/target/linux/brcm-2.6/patches/002-flash-map.patch +++ b/target/linux/brcm-2.6/patches/002-flash-map.patch @@ -1,10 +1,11 @@ -diff -Nur linux-2.6.15-rc5/drivers/mtd/maps/bcm47xx-flash.c linux-2.6.15-rc5-flash/drivers/mtd/maps/bcm47xx-flash.c ---- linux-2.6.15-rc5/drivers/mtd/maps/bcm47xx-flash.c 1970-01-01 01:00:00.000000000 +0100 -+++ linux-2.6.15-rc5-flash/drivers/mtd/maps/bcm47xx-flash.c 2005-12-19 00:33:31.276241000 +0100 -@@ -0,0 +1,316 @@ +diff -urN linux.old/drivers/mtd/maps/bcm47xx-flash.c linux.dev/drivers/mtd/maps/bcm47xx-flash.c +--- linux.old/drivers/mtd/maps/bcm47xx-flash.c 1970-01-01 01:00:00.000000000 +0100 ++++ linux.dev/drivers/mtd/maps/bcm47xx-flash.c 2006-06-23 19:54:06.000000000 +0200 +@@ -0,0 +1,490 @@ +/* -+ * Copyright (C) 2004 Florian Schirmer (jolt@tuxbox.org) ++ * Copyright (C) 2006 Felix Fietkau + * Copyright (C) 2005 Waldemar Brodkorb ++ * Copyright (C) 2004 Florian Schirmer (jolt@tuxbox.org) + * + * original functions for finding root filesystem from Mike Baker + * @@ -43,20 +44,34 @@ diff -Nur linux-2.6.15-rc5/drivers/mtd/maps/bcm47xx-flash.c linux-2.6.15-rc5-fla +#include +#include +#include -+#include ++#include ++#include +#include +#include +#ifdef CONFIG_MTD_PARTITIONS +#include +#endif -+#include ++#include ++#include ++#include ++#include + ++#include ++#include ++#include ++#include ++#include ++#include ++#include +#include + -+#define WINDOW_ADDR 0x1c000000 -+#define WINDOW_SIZE (0x400000*2) ++#define ROUNDUP(x, y) ((((x)+((y)-1))/(y))*(y)) ++#define NVRAM_SPACE 0x8000 ++#define WINDOW_ADDR 0x1fc00000 ++#define WINDOW_SIZE 0x400000 +#define BUSWIDTH 2 + ++extern sb_t *sbh; +static struct mtd_info *bcm947xx_mtd; + +static void bcm947xx_map_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len) @@ -104,13 +119,15 @@ diff -Nur linux-2.6.15-rc5/drivers/mtd/maps/bcm47xx-flash.c linux-2.6.15-rc5-fla + unsigned char buf[512]; + int off; + size_t len; -+ int cfe_size_flag; ++ int blocksize; + + trx = (struct trx_header *) buf; + -+ cfe_size_flag=0; ++ blocksize = mtd->erasesize; ++ if (blocksize < 0x10000) ++ blocksize = 0x10000; + -+ for (off = (256*1024); off < size; off += mtd->erasesize) { ++ for (off = (128*1024); off < size; off += blocksize) { + memset(buf, 0xe5, sizeof(buf)); + + /* @@ -122,9 +139,8 @@ diff -Nur linux-2.6.15-rc5/drivers/mtd/maps/bcm47xx-flash.c linux-2.6.15-rc5-fla + + /* found a TRX header */ + if (le32_to_cpu(trx->magic) == TRX_MAGIC) { -+ goto done; ++ goto found; + } -+ cfe_size_flag += 1; + } + + printk(KERN_NOTICE @@ -132,42 +148,115 @@ diff -Nur linux-2.6.15-rc5/drivers/mtd/maps/bcm47xx-flash.c linux-2.6.15-rc5-fla + mtd->name); + return -1; + -+ done: -+ printk(KERN_NOTICE "bootloader size flag: %d\n", cfe_size_flag); -+ return cfe_size_flag; ++ 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; ++ struct squashfs_super_block *sb = (struct squashfs_super_block *) buf; + -+ trx = (struct trx_header *) buf; ++ blocksize = mtd->erasesize; ++ if (blocksize < 0x10000) ++ blocksize = 0x10000; + -+ for (off = (256*1024); off < size; off += mtd->erasesize) { -+ memset(buf, 0xe5, sizeof(buf)); ++ for (off = (128*1024); off < size; off += blocksize) { ++ 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; + } + } + @@ -176,39 +265,94 @@ diff -Nur linux-2.6.15-rc5/drivers/mtd/maps/bcm47xx-flash.c linux-2.6.15-rc5-fla + 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; ++ len = part->offset + part->size; ++ len += (mtd->erasesize - 1); ++ len &= ~(mtd->erasesize - 1); ++ part->size = len - part->offset; ++ } 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 */ ++ block = kmalloc(mtd->erasesize, GFP_KERNEL); ++ trx2 = (struct trx_header *) block; ++ 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; + -+ int cfe_size_flag; -+ -+ /* if cfe_size_flag=0, cfe size is 256 kb, else 384 kb */ -+ cfe_size_flag = find_cfe_size(mtd, size); ++ if ((cfe_size = find_cfe_size(mtd,size)) < 0) ++ return NULL; + + /* boot loader */ + bcm947xx_parts[0].offset = 0; -+ if (cfe_size_flag == 0) { -+ bcm947xx_parts[0].size = 1024*256; -+ } else { -+ /* netgear wgt634u has 384 kb bootloader */ -+ bcm947xx_parts[0].size = 1024*384; -+ } ++ bcm947xx_parts[0].size = cfe_size; + + /* nvram */ -+ if (cfe_size_flag == 0) { -+ bcm947xx_parts[3].offset = size - mtd->erasesize; ++ if (cfe_size != 384 * 1024) { ++ bcm947xx_parts[3].offset = size - ROUNDUP(NVRAM_SPACE, mtd->erasesize); ++ bcm947xx_parts[3].size = ROUNDUP(NVRAM_SPACE, mtd->erasesize); + } else { + /* nvram (old 128kb config partition on netgear wgt634u) */ + bcm947xx_parts[3].offset = bcm947xx_parts[0].size; ++ bcm947xx_parts[3].size = ROUNDUP(NVRAM_SPACE, mtd->erasesize); + } -+ bcm947xx_parts[3].size = mtd->erasesize; + + /* linux (kernel and rootfs) */ -+ if (cfe_size_flag == 0) { ++ if (cfe_size != 384 * 1024) { + bcm947xx_parts[1].offset = bcm947xx_parts[0].size; + bcm947xx_parts[1].size = bcm947xx_parts[3].offset - + bcm947xx_parts[1].offset; @@ -227,11 +371,11 @@ diff -Nur linux-2.6.15-rc5/drivers/mtd/maps/bcm47xx-flash.c linux-2.6.15-rc5-fla + /* entirely jffs2 */ + bcm947xx_parts[4].name = NULL; + bcm947xx_parts[2].size = size - bcm947xx_parts[2].offset - -+ bcm947xx_parts[3].size; ++ bcm947xx_parts[3].size; + } else { + /* legacy setup */ + /* calculate leftover flash, and assign it to the jffs2 partition */ -+ if (cfe_size_flag == 0) { ++ if (cfe_size != 384 * 1024) { + bcm947xx_parts[4].offset = bcm947xx_parts[2].offset + + bcm947xx_parts[2].size; + if ((bcm947xx_parts[4].offset % mtd->erasesize) > 0) { @@ -258,6 +402,10 @@ diff -Nur linux-2.6.15-rc5/drivers/mtd/maps/bcm47xx-flash.c linux-2.6.15-rc5-fla + +int __init init_bcm947xx_map(void) +{ ++ uint coreidx; ++ chipcregs_t *cc; ++ uint32 fltype; ++ uint window_addr = 0, window_size = 0; + size_t size; + int ret = 0; +#ifdef CONFIG_MTD_PARTITIONS @@ -265,7 +413,33 @@ diff -Nur linux-2.6.15-rc5/drivers/mtd/maps/bcm47xx-flash.c linux-2.6.15-rc5-fla + int i; +#endif + -+ bcm947xx_map.virt = ioremap(WINDOW_ADDR, WINDOW_SIZE); ++ coreidx = sb_coreidx(sbh); ++ ++ /* Check strapping option if chipcommon exists */ ++ if ((cc = sb_setcore(sbh, SB_CC, 0))) { ++ fltype = readl(&cc->capabilities) & CAP_FLASH_MASK; ++ if (fltype == PFLASH) { ++ bcm947xx_map.map_priv_2 = 1; ++ window_addr = 0x1c000000; ++ bcm947xx_map.size = window_size = 32 * 1024 * 1024; ++ if ((readl(&cc->flash_config) & CC_CFG_DS) == 0) ++ bcm947xx_map.bankwidth = 1; ++ } ++ } else { ++ fltype = PFLASH; ++ bcm947xx_map.map_priv_2 = 0; ++ window_addr = WINDOW_ADDR; ++ window_size = WINDOW_SIZE; ++ } ++ ++ sb_setcoreidx(sbh, coreidx); ++ ++ if (fltype != PFLASH) { ++ printk(KERN_ERR "pflash: found no supported devices\n"); ++ ret = -ENODEV; ++ goto fail; ++ } ++ bcm947xx_map.virt = ioremap(window_addr, window_size); + + if (!bcm947xx_map.virt) { + printk("Failed to ioremap\n"); @@ -318,30 +492,3 @@ diff -Nur linux-2.6.15-rc5/drivers/mtd/maps/bcm47xx-flash.c linux-2.6.15-rc5-fla + +module_init(init_bcm947xx_map); +module_exit(cleanup_bcm947xx_map); -diff -Nur linux-2.6.15-rc5/drivers/mtd/maps/Kconfig linux-2.6.15-rc5-flash/drivers/mtd/maps/Kconfig ---- linux-2.6.15-rc5/drivers/mtd/maps/Kconfig 2005-12-04 06:10:42.000000000 +0100 -+++ linux-2.6.15-rc5-flash/drivers/mtd/maps/Kconfig 2005-12-18 19:36:11.555087000 +0100 -@@ -299,6 +299,12 @@ - Mapping for the Flaga digital module. If you don't have one, ignore - this setting. - -+config MTD_BCM47XX -+ tristate "BCM47xx flash device" -+ depends on MIPS && MTD_CFI && BCM947XX -+ help -+ Support for the flash chips on the BCM947xx board. -+ - config MTD_BEECH - tristate "CFI Flash device mapped on IBM 405LP Beech" - depends on MTD_CFI && BEECH -diff -Nur linux-2.6.15-rc5/drivers/mtd/maps/Makefile linux-2.6.15-rc5-flash/drivers/mtd/maps/Makefile ---- linux-2.6.15-rc5/drivers/mtd/maps/Makefile 2005-12-04 06:10:42.000000000 +0100 -+++ linux-2.6.15-rc5-flash/drivers/mtd/maps/Makefile 2005-12-18 19:36:11.555087000 +0100 -@@ -31,6 +31,7 @@ - obj-$(CONFIG_MTD_PCMCIA) += pcmciamtd.o - obj-$(CONFIG_MTD_RPXLITE) += rpxlite.o - obj-$(CONFIG_MTD_TQM8XXL) += tqm8xxl.o -+obj-$(CONFIG_MTD_BCM47XX) += bcm47xx-flash.o - obj-$(CONFIG_MTD_SA1100) += sa1100-flash.o - obj-$(CONFIG_MTD_IPAQ) += ipaq-flash.o - obj-$(CONFIG_MTD_SBC_GXX) += sbc_gxx.o