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Diffstat (limited to 'drivers/mtd/redboot.c')
-rw-r--r--drivers/mtd/redboot.c28
1 files changed, 26 insertions, 2 deletions
diff --git a/drivers/mtd/redboot.c b/drivers/mtd/redboot.c
index 7b7ca5a..8815c8d 100644
--- a/drivers/mtd/redboot.c
+++ b/drivers/mtd/redboot.c
@@ -1,5 +1,5 @@
/*
- * $Id: redboot.c,v 1.18 2005/11/07 11:14:21 gleixner Exp $
+ * $Id: redboot.c,v 1.19 2005/12/01 10:03:51 dwmw2 Exp $
*
* Parse RedBoot-style Flash Image System (FIS) tables and
* produce a Linux partition array to match.
@@ -89,8 +89,32 @@ static int parse_redboot_partitions(struct mtd_info *master,
i = numslots;
break;
}
- if (!memcmp(buf[i].name, "FIS directory", 14))
+ if (!memcmp(buf[i].name, "FIS directory", 14)) {
+ /* This is apparently the FIS directory entry for the
+ * FIS directory itself. The FIS directory size is
+ * one erase block; if the buf[i].size field is
+ * swab32(erasesize) then we know we are looking at
+ * a byte swapped FIS directory - swap all the entries!
+ * (NOTE: this is 'size' not 'data_length'; size is
+ * the full size of the entry.)
+ */
+ if (swab32(buf[i].size) == master->erasesize) {
+ int j;
+ for (j = 0; j < numslots && buf[j].name[0] != 0xff; ++j) {
+ /* The unsigned long fields were written with the
+ * wrong byte sex, name and pad have no byte sex.
+ */
+ swab32s(&buf[j].flash_base);
+ swab32s(&buf[j].mem_base);
+ swab32s(&buf[j].size);
+ swab32s(&buf[j].entry_point);
+ swab32s(&buf[j].data_length);
+ swab32s(&buf[j].desc_cksum);
+ swab32s(&buf[j].file_cksum);
+ }
+ }
break;
+ }
}
if (i == numslots) {
/* Didn't find it */
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