summaryrefslogtreecommitdiff
path: root/packages/obsolete/nslu2/nslu2-kernel/2.6.14/10-mtdpart-redboot-fis-byteswap.patch
diff options
context:
space:
mode:
authorRod Whitby <rod@whitby.id.au>2007-02-08 13:28:16 +0000
committerRod Whitby <rod@whitby.id.au>2007-02-08 13:28:16 +0000
commitbdbe41f45ef7a63096790b770a484c8a61c53241 (patch)
tree39c212800721f1f6a2d0ad0368f3e6fc06f74f9c /packages/obsolete/nslu2/nslu2-kernel/2.6.14/10-mtdpart-redboot-fis-byteswap.patch
parent8930d02f19c5d65f9d26b7c81b95ba18ba1decea (diff)
packages/obsolete/nslu2: dropped all obsolete nslu2 kernels
Diffstat (limited to 'packages/obsolete/nslu2/nslu2-kernel/2.6.14/10-mtdpart-redboot-fis-byteswap.patch')
-rw-r--r--packages/obsolete/nslu2/nslu2-kernel/2.6.14/10-mtdpart-redboot-fis-byteswap.patch70
1 files changed, 0 insertions, 70 deletions
diff --git a/packages/obsolete/nslu2/nslu2-kernel/2.6.14/10-mtdpart-redboot-fis-byteswap.patch b/packages/obsolete/nslu2/nslu2-kernel/2.6.14/10-mtdpart-redboot-fis-byteswap.patch
deleted file mode 100644
index 3fa0535abf..0000000000
--- a/packages/obsolete/nslu2/nslu2-kernel/2.6.14/10-mtdpart-redboot-fis-byteswap.patch
+++ /dev/null
@@ -1,70 +0,0 @@
-drivers/mtd/redboot.c: recognise a foreign byte sex partition table
-
-The RedBoot boot loader writes flash partition tables containing native
-byte sex 32 bit values. When booting an opposite byte sex kernel (e.g. an
-LE kernel from BE RedBoot) the current MTD driver fails to handle the
-partition table and therefore is unable to generate the correct partition
-map for the flash.
-
-The patch recognises that the FIS directory (the partition table) is
-byte-reversed by examining the partition table size, which is known to be
-one erase block (this is an assumption made elsewhere in redboot.c). If
-the size matches the erase block after byte swapping the value then
-byte-reversal is assumed, if not no further action is taken. The patched
-code is fail safe; should redboot.c be changed to support a partition table
-with a modified size field the test will fail and the partition table will
-be assumed to have the host byte sex.
-
-If byte-reversal is detected the patch byte swaps the remainder of the 32
-bit fields in the copy of the table; this copy is then used to set up the
-MTD partition map.
-
-Signed-off-by: John Bowler <jbowler@acm.org>
-Signed-off-by: Andrew Morton <akpm@osdl.org>
-Modified slightly and
-Signed-off-by: David Woodhouse <dwmw2@infradead.org>
-
-Index: drivers/mtd/redboot.c
-===================================================================
-RCS file: /home/cvs/mtd/drivers/mtd/redboot.c,v
-retrieving revision 1.18
-retrieving revision 1.19
-diff -u -p -r1.18 -r1.19
---- linux-2.6.15/drivers/mtd/redboot.c 1970-01-01 00:00:00.000000000 +0000
-+++ linux-2.6.15/drivers/mtd/redboot.c 1970-01-01 00:00:00.000000000 +0000
-@@ -89,8 +89,32 @@ static int parse_redboot_partitions(stru
- 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 */
-
-