[U-Boot] [PATCH 3/3] Support for devices with FAT32 PBR
Igor Luri
iluri at aotek.es
Mon May 10 12:14:16 CEST 2010
Signed-off-by: Igor Luri <iluri at aotek.es>
---
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 2445f1e..4da4351 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_FS_FAT32_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) ||
+ !strncmp((char *)&buffer[DOS_FS_FAT32_TYPE_OFFSET], "FAT32", 5)) {
/* 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) ||
+ !strncmp((char *)&buffer[DOS_FS_FAT32_TYPE_OFFSET], "FAT32", 5) ) {
/* ok, we assume we are on a PBR only */
cur_part = 1;
part_offset = 0;
--
1.5.4.3
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