diff options
| author | Wolfgang Denk | 2010-07-19 11:36:57 +0200 |
|---|---|---|
| committer | Wolfgang Denk | 2010-07-24 20:53:43 +0200 |
| commit | 66c2d73cfc901aa35e0331b2fd710b250151f966 (patch) | |
| tree | 36cd0dff7cca6db402795feedd708ee78fdab1cc /fs | |
| parent | a17c548b5393c5e0b457d6e3043a85bde717f532 (diff) | |
FAT32: fix support for superfloppy-format (PBR)
"Superfloppy" format (in U-Boot called PBR) did not work for FAT32 as
the file system type string is at a different location. Add support
for FAT32.
Signed-off-by: Wolfgang Denk <wd@denx.de>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/fat/fat.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/fs/fat/fat.c b/fs/fat/fat.c index 6b3a2742e21..5b9ec2a4ac0 100644 --- a/fs/fat/fat.c +++ b/fs/fat/fat.c @@ -50,6 +50,7 @@ static int cur_part = 1; #define DOS_PART_TBL_OFFSET 0x1be #define DOS_PART_MAGIC_OFFSET 0x1fe #define DOS_FS_TYPE_OFFSET 0x36 +#define DOS_FS32_TYPE_OFFSET 0x52 int disk_read (__u32 startblock, __u32 getsize, __u8 * bufptr) { @@ -94,7 +95,8 @@ fat_register_device(block_dev_desc_t *dev_desc, int part_no) if (!get_partition_info (dev_desc, part_no, &info)) { part_offset = info.start; cur_part = part_no; - } else if (!strncmp((char *)&buffer[DOS_FS_TYPE_OFFSET], "FAT", 3)) { + } else if (strncmp((char *)&buffer[DOS_FS_TYPE_OFFSET], "FAT", 3)==0 || + strncmp((char *)&buffer[DOS_FS32_TYPE_OFFSET],"FAT32",5)==0) { /* ok, we assume we are on a PBR only */ cur_part = 1; part_offset = 0; @@ -105,7 +107,8 @@ fat_register_device(block_dev_desc_t *dev_desc, int part_no) } #else - if (!strncmp((char *)&buffer[DOS_FS_TYPE_OFFSET],"FAT",3)) { + if ((strncmp((char *)&buffer[DOS_FS_TYPE_OFFSET], "FAT", 3) == 0) || + (strncmp((char *)&buffer[DOS_FS32_TYPE_OFFSET], "FAT32", 5) == 0)) { /* ok, we assume we are on a PBR only */ cur_part = 1; part_offset = 0; |