Merge with /home/wd/git/u-boot/custodian/u-boot-mpc85xx

1 files changed, 22 insertions, 12 deletions

diff --git a/fs/fat/fat.c b/fs/fat/fat.c
index 3824e1d..c068a84 100644
--- a/fs/fat/fat.c
+++ b/fs/fat/fat.c
@@ -70,10 +70,11 @@ int
 fat_register_device(block_dev_desc_t *dev_desc, int part_no)
 {
 	unsigned char buffer[SECTOR_SIZE];
+	disk_partition_t info;
 
 	if (!dev_desc->block_read)
 		return -1;
-	cur_dev=dev_desc;
+	cur_dev = dev_desc;
 	/* check if we have a MBR (on floppies we have only a PBR) */
 	if (dev_desc->block_read (dev_desc->dev, 0, 1, (ulong *) buffer) != 1) {
 		printf ("** Can't read from device %d **\n", dev_desc->dev);
@@ -95,25 +96,34 @@ fat_register_device(block_dev_desc_t *dev_desc, int part_no)
      defined(CONFIG_CMD_USB) || \
      (defined(CONFIG_MMC) && defined(CONFIG_LPC2292)) || \
      defined(CONFIG_SYSTEMACE)          )
-		disk_partition_t info;
-		if(!get_partition_info(dev_desc, part_no, &info)) {
-			part_offset = info.start;
-			cur_part = part_no;
-		}
-		else {
-			printf ("** Partition %d not valid on device %d **\n",part_no,dev_desc->dev);
-			return -1;
-		}
+	/* First we assume, there is a MBR */
+	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)) {
+		/* ok, we assume we are on a PBR only */
+		cur_part = 1;
+		part_offset = 0;
+	} else {
+		printf ("** Partition %d not valid on device %d **\n", part_no, dev_desc->dev);
+		return -1;
+	}
 #else
+	if(!strncmp((char *)&buffer[DOS_FS_TYPE_OFFSET],"FAT",3)) {
+ 		/* ok, we assume we are on a PBR only */
+ 		cur_part = 1;
+		part_offset = 0;
+		info.start = part_offset;
+	} else {
 		/* FIXME we need to determine the start block of the
 		 * partition where the DOS FS resides. This can be done
 		 * by using the get_partition_info routine. For this
 		 * purpose the libpart must be included.
 		 */
-		part_offset=32;
+		part_offset = 32;
 		cur_part = 1;
-#endif
 	}
+#endif
 	return 0;
 }