diff options
Diffstat (limited to 'target/linux/brcm47xx/patches-3.10/023-mtd-bcm47xxpart-find-boot-partition-by-CFE-magic.patch')
| -rw-r--r-- | target/linux/brcm47xx/patches-3.10/023-mtd-bcm47xxpart-find-boot-partition-by-CFE-magic.patch | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/target/linux/brcm47xx/patches-3.10/023-mtd-bcm47xxpart-find-boot-partition-by-CFE-magic.patch b/target/linux/brcm47xx/patches-3.10/023-mtd-bcm47xxpart-find-boot-partition-by-CFE-magic.patch new file mode 100644 index 0000000000..599114bf52 --- /dev/null +++ b/target/linux/brcm47xx/patches-3.10/023-mtd-bcm47xxpart-find-boot-partition-by-CFE-magic.patch @@ -0,0 +1,43 @@ +From 4f8aaf72287578c846ed7ac8c6114aacbf416e45 Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com> +Date: Sat, 21 Dec 2013 19:39:11 +0100 +Subject: [PATCH] mtd: bcm47xxpart: find boot partition by CFE magic +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +Some devices have even nicer-to-recognize CFE thanks to the magic. + +Signed-off-by: Rafał Miłecki <zajec5@gmail.com> +Signed-off-by: Brian Norris <computersforpeace@gmail.com> +--- + drivers/mtd/bcm47xxpart.c | 8 +++++--- + 1 file changed, 5 insertions(+), 3 deletions(-) + +--- a/drivers/mtd/bcm47xxpart.c ++++ b/drivers/mtd/bcm47xxpart.c +@@ -23,10 +23,11 @@ + * 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 BOARD_DATA_MAGIC 0x5246504D /* MPFR */ ++#define CFE_MAGIC 0x43464531 /* 1EFC */ + #define FACTORY_MAGIC 0x59544346 /* FCTY */ + #define POT_MAGIC1 0x54544f50 /* POTT */ + #define POT_MAGIC2 0x504f /* OP */ +@@ -102,8 +103,9 @@ 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[0x4e4 / 4] == CFE_MAGIC) || ++ (buf[0x400 / 4] == NVRAM_HEADER)) { + bcm47xxpart_add_part(&parts[curr_part++], "boot", + offset, MTD_WRITEABLE); + continue; |