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authornbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73>2013-05-13 19:13:33 +0000
committernbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73>2013-05-13 19:13:33 +0000
commitcbf4bc92c6a44cdc27ec4052ff1eced445cc4d2b (patch)
tree435394cb095364d72c68a99d169733756d5ecef9 /target/linux/ar71xx/files/arch/mips/ath79/routerboot.c
parent048d9254497c80e71131b456c1077893adb40c18 (diff)
ar71xx: add hard_cfg offset detection for rb2011 support - fixes wlan on some newer devices
Signed-off-by: Felix Fietkau <nbd@openwrt.org> git-svn-id: svn://svn.openwrt.org/openwrt/trunk@36631 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/ar71xx/files/arch/mips/ath79/routerboot.c')
-rw-r--r--target/linux/ar71xx/files/arch/mips/ath79/routerboot.c20
1 files changed, 20 insertions, 0 deletions
diff --git a/target/linux/ar71xx/files/arch/mips/ath79/routerboot.c b/target/linux/ar71xx/files/arch/mips/ath79/routerboot.c
index 3c6f9aaeb..1cb1f9d4e 100644
--- a/target/linux/ar71xx/files/arch/mips/ath79/routerboot.c
+++ b/target/linux/ar71xx/files/arch/mips/ath79/routerboot.c
@@ -30,6 +30,26 @@ static u16 get_u16(void *buf)
}
__init int
+routerboot_find_magic(u8 *buf, unsigned int buflen, u32 *offset, bool hard)
+{
+ u32 magic_ref = hard ? RB_MAGIC_HARD : RB_MAGIC_SOFT;
+ u32 magic;
+ u32 cur = *offset;
+
+ while (cur < buflen) {
+ magic = get_u32(buf + cur);
+ if (magic == magic_ref) {
+ *offset = cur;
+ return 0;
+ }
+
+ cur += 0x1000;
+ }
+
+ return -ENOENT;
+}
+
+__init int
routerboot_find_tag(u8 *buf, unsigned int buflen, u16 tag_id,
u8 **tag_data, u16 *tag_len)
{