aboutsummaryrefslogtreecommitdiffstats
path: root/target/linux/brcm47xx/patches-3.8/026-mtd-bcm47xxpart-find-boot-partition-by-CFE-magic.patch
diff options
context:
space:
mode:
Diffstat (limited to 'target/linux/brcm47xx/patches-3.8/026-mtd-bcm47xxpart-find-boot-partition-by-CFE-magic.patch')
-rw-r--r--target/linux/brcm47xx/patches-3.8/026-mtd-bcm47xxpart-find-boot-partition-by-CFE-magic.patch26
1 files changed, 26 insertions, 0 deletions
diff --git a/target/linux/brcm47xx/patches-3.8/026-mtd-bcm47xxpart-find-boot-partition-by-CFE-magic.patch b/target/linux/brcm47xx/patches-3.8/026-mtd-bcm47xxpart-find-boot-partition-by-CFE-magic.patch
new file mode 100644
index 0000000000..d3fb9d3a66
--- /dev/null
+++ b/target/linux/brcm47xx/patches-3.8/026-mtd-bcm47xxpart-find-boot-partition-by-CFE-magic.patch
@@ -0,0 +1,26 @@
+--- a/drivers/mtd/bcm47xxpart.c
++++ b/drivers/mtd/bcm47xxpart.c
+@@ -23,9 +23,10 @@
+ * Amount of bytes we read when analyzing each block of flash memory.
+ * Set it big enough to allow detecting partition and reading important data.
+ */
+-#define BCM47XXPART_BYTES_TO_READ 0x404
++#define BCM47XXPART_BYTES_TO_READ 0x4e8
+
+ /* Magics */
++#define CFE_MAGIC 0x43464531 /* 1EFC */
+ #define BOARD_DATA_MAGIC 0x5246504D /* MPFR */
+ #define POT_MAGIC1 0x54544f50 /* POTT */
+ #define POT_MAGIC2 0x504f /* OP */
+@@ -93,8 +94,9 @@ static int bcm47xxpart_parse(struct mtd_
+ continue;
+ }
+
+- /* CFE has small NVRAM at 0x400 */
+- if (buf[0x400 / 4] == NVRAM_HEADER) {
++ /* Magic or small NVRAM at 0x400 */
++ if (buf[0x4e0 / 4] == CFE_MAGIC ||
++ buf[0x400 / 4] == NVRAM_HEADER) {
+ bcm47xxpart_add_part(&parts[curr_part++], "boot",
+ offset, MTD_WRITEABLE);
+ continue;