Merge ../linux-2.6

1 files changed, 26 insertions, 2 deletions

diff --git a/drivers/mtd/redboot.c b/drivers/mtd/redboot.c
index 7b7ca5ab5ae4..8815c8dbef2d 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 */