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remove squashfs repartitioning hacks from spiflash driver - will be ported to redboot parsing code later

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@6308 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
nbd 2007-02-16 09:57:24 +00:00
parent 6869d66ad6
commit fc14823cc7
1 changed files with 4 additions and 66 deletions
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70
target/linux/atheros-2.6/files/drivers/mtd/devices/spiflash.c
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@ -396,15 +396,9 @@ static const char *part_probe_types[] = { "cmdlinepart", "RedBoot", NULL };
static int spiflash_probe(struct platform_device *pdev) static int spiflash_probe(struct platform_device *pdev)
{ {
int result = -1, i, j; int result = -1;
u32 len;
int index, num_parts; int index, num_parts;
struct mtd_info *mtd; struct mtd_info *mtd;
struct mtd_partition *mtd_parts;
char *buf;
struct mtd_partition *part;
struct squashfs_super_block *sb;
u32 config_start;
spidata->spiflash_mmraddr = ioremap_nocache(SPI_FLASH_MMR, SPI_FLASH_MMR_SIZE); spidata->spiflash_mmraddr = ioremap_nocache(SPI_FLASH_MMR, SPI_FLASH_MMR_SIZE);
@ -476,73 +470,17 @@ static int spiflash_probe(struct platform_device *pdev)
} }
} }
#endif #endif
/* parse redboot partitions */ /* parse redboot partitions */
num_parts = parse_mtd_partitions(mtd, part_probe_types, &spidata->parsed_parts, 0); num_parts = parse_mtd_partitions(mtd, part_probe_types, &spidata->parsed_parts, 0);
mtd_parts = kzalloc(sizeof(struct mtd_partition) * MAX_PARTS, GFP_KERNEL);
buf = kmalloc(mtd->erasesize, GFP_KERNEL);
sb = (struct squashfs_super_block *) buf;
for (i = j = 0; i < num_parts; i++, j++) {
part = &mtd_parts[j];
memcpy(part, &spidata->parsed_parts[i], sizeof(struct mtd_partition));
if (!strcmp(part->name, ROOTFS_NAME)) {
/* create the root device */
ROOT_DEV = MKDEV(MTD_BLOCK_MAJOR, i);
part->size -= mtd->erasesize;
config_start = part->offset + part->size;
while ((mtd->read(mtd, part->offset, mtd->erasesize, &len, buf) == 0) &&
(len == mtd->erasesize) &&
(*((u32 *) buf) == SQUASHFS_MAGIC) &&
(sb->bytes_used > 0)) {
/* this is squashfs, allocate another partition starting from the end of filesystem data */
memcpy(&mtd_parts[j + 1], part, sizeof(struct mtd_partition));
len = (u32) sb->bytes_used;
len += (part->offset & 0x000fffff);
len += (mtd->erasesize - 1);
len &= ~(mtd->erasesize - 1);
len -= (part->offset & 0x000fffff);
if (len + mtd->erasesize > part->size)
break;
part = &mtd_parts[++j];
part->offset += len;
part->size -= len;
part->name = kmalloc(10, GFP_KERNEL);
sprintf(part->name, "rootfs%d", j - i);
}
}
if (!strcmp(part->name, "RedBoot config")) {
/* add anoterh partition for the board config data */
memcpy(&mtd_parts[j + 1], part, sizeof(struct mtd_partition));
j++;
part = &mtd_parts[j];
part->offset += part->size;
part->size = mtd->erasesize;
part->name = kmalloc(16, GFP_KERNEL);
sprintf(part->name, "board_config");
}
}
num_parts += j - i;
kfree(buf);
#ifdef SPIFLASH_DEBUG #ifdef SPIFLASH_DEBUG
printk (KERN_DEBUG "Found %d redboot partitions\n", num_parts); printk (KERN_DEBUG "Found %d partitions\n", num_parts);
#endif #endif
if (num_parts) { if (num_parts) {
result = add_mtd_partitions(mtd, mtd_parts, num_parts); result = add_mtd_partitions(mtd, spidata->parsed_parts, num_parts);
} else { } else {
#ifdef SPIFLASH_DEBUG #ifdef SPIFLASH_DEBUG
printk (KERN_DEBUG "Did not find any redboot partitions\n"); printk (KERN_DEBUG "Did not find any partitions\n");
#endif #endif
kfree(mtd); kfree(mtd);
kfree(spidata); kfree(spidata);