openwrtv3/target/linux/generic/patches-3.18/431-mtd-bcm47xxpart-support-for-Xiaomi-specific-board_da.patch

From 841e59ba3e496d86ca5f069204d5e5c1ad43c01d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
Date: Tue, 27 Jan 2015 22:29:21 +0100
Subject: [PATCH] mtd: bcm47xxpart: support for Xiaomi specific board_data
 partition
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Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
---
 drivers/mtd/bcm47xxpart.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

--- a/drivers/mtd/bcm47xxpart.c
+++ b/drivers/mtd/bcm47xxpart.c
@@ -33,6 +33,7 @@
 /* Magics */
 #define BOARD_DATA_MAGIC		0x5246504D	/* MPFR */
 #define BOARD_DATA_MAGIC2		0xBD0D0BBD
+#define BOARD_DATA_XIAOMI_MAGIC		0x474D4442	/* GMDB */
 #define CFE_MAGIC			0x43464531	/* 1EFC */
 #define FACTORY_MAGIC			0x59544346	/* FCTY */
 #define NVRAM_HEADER			0x48534C46	/* FLSH */
@@ -267,7 +268,8 @@ static int bcm47xxpart_parse(struct mtd_
 		}
 
 		/* Some devices (ex. WNDR3700v3) don't have a standard 'MPFR' */
-		if (buf[0x000 / 4] == BOARD_DATA_MAGIC2) {
+		if (buf[0x000 / 4] == BOARD_DATA_MAGIC2 ||
+		    le32_to_cpu(buf[0x000 / 4]) == BOARD_DATA_XIAOMI_MAGIC) {
 			bcm47xxpart_add_part(&parts[curr_part++], "board_data",
 					     offset, MTD_WRITEABLE);
 			continue;