mtd: bcm47xxpart: detect "factory" partition

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Gitweb:     http://git.infradead.org/?p=mtd-2.6.git;a=commit;h=33094c736cd36a6cecadae6bce4daba89dabc326
Commit:     33094c736cd36a6cecadae6bce4daba89dabc326
Parent:     020c6bcfbeabee72c18d862769d72cf9241b9004
Author:     Rafał Miłecki <zajec5 at gmail.com>
AuthorDate: Mon Oct 21 22:35:34 2013 +0200
Committer:  Brian Norris <computersforpeace at gmail.com>
CommitDate: Wed Nov 6 23:32:58 2013 -0800

    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 at gmail.com>
    Signed-off-by: Brian Norris <computersforpeace at gmail.com>
---
 drivers/mtd/bcm47xxpart.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/mtd/bcm47xxpart.c b/drivers/mtd/bcm47xxpart.c
index a737450..7a6384b 100644
--- a/drivers/mtd/bcm47xxpart.c
+++ b/drivers/mtd/bcm47xxpart.c
@@ -27,6 +27,7 @@
 
 /* Magics */
 #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
@@ -118,6 +119,13 @@ static int bcm47xxpart_parse(struct mtd_info *master,
 			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 &&
 		    (buf[0x004 / 4] & 0xFFFF) == POT_MAGIC2) {