brcm47xx: mtd: bcm47xxpart: detect "factory" partition

A new type of partition with magic FCTY was found on Huawei E970:
46 43 54 59 4b 51 37 4e  41 42 31 38 41 32 39 30  |FCTYKQ7NAB18A290|

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@38005 3c298f89-4303-0410-b956-a3cf2f4a3e73

diff --git a/target/linux/brcm47xx/patches-3.10/030-mtd-bcm47xxpart_detect_factory_partition.patch b/target/linux/brcm47xx/patches-3.10/030-mtd-bcm47xxpart_detect_factory_partition.patch
new file mode 100644 (file)
index 0000000..6630700
--- /dev/null
+++ b/target/linux/brcm47xx/patches-3.10/030-mtd-bcm47xxpart_detect_factory_partition.patch
@@ -0,0 +1,31 @@
+mtd: bcm47xxpart: detect "factory" partition
+
+A new type of partition with magic FCTY was found on Huawei E970:
+46 43 54 59 4b 51 37 4e  41 42 31 38 41 32 39 30  |FCTYKQ7NAB18A290|
+
+Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
+
+--- a/drivers/mtd/bcm47xxpart.c
++++ b/drivers/mtd/bcm47xxpart.c
+@@ -28,6 +28,7 @@
+ /* Magics */
+ #define CFE_MAGIC                     0x43464531      /* 1EFC */
+ #define BOARD_DATA_MAGIC              0x5246504D      /* MPFR */
++#define FACTORY_MAGIC                 0x59544346      /* FCTY */
+ #define POT_MAGIC1                    0x54544f50      /* POTT */
+ #define POT_MAGIC2                    0x504f          /* OP */
+ #define ML_MAGIC1                     0x39685a42
+@@ -113,6 +114,13 @@ static int bcm47xxpart_parse(struct mtd_
+                                            offset, MTD_WRITEABLE);
+                       continue;
+               }
++
++              /* Found on Huawei E970 */
++              if (buf[0x000 / 4] == FACTORY_MAGIC) {
++                      bcm47xxpart_add_part(&parts[curr_part++], "factory",
++                                           offset, MTD_WRITEABLE);
++                      continue;
++              }
+ 
+               /* POT(TOP) */
+               if (buf[0x000 / 4] == POT_MAGIC1 &&