From 2a6a85191b023df6f4792213a19a5a2c04c1540a Mon Sep 17 00:00:00 2001 From: Gabor Juhos Date: Sat, 9 Feb 2013 12:53:52 +0000 Subject: [PATCH] AA: ar71xx: Routerboard 751 Mac Address Offset Fix Backport of r35519. We utilize many Routerboard 751's and discovered that our latest batch of RB751's would not initialize the wireless radio. We have determined Mikrotik has changed where the mac address was located inside hardconfig. As such we utilize "routerboot_find_tag" to find the location of the mac address. We should remove "RB751_MAC_ADDRESS_OFFSET" as it is ambiguous by machine manufacturing date. The newer batch of RB751's that we received had a RB751_MAC_ADDRESS_OFFSET 0x10. Signed-off-by: Davey Hutchison Signed-off-by: Gabor Juhos SVN-Revision: 35531 --- .../linux/ar71xx/files/arch/mips/ath79/mach-rb750.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/target/linux/ar71xx/files/arch/mips/ath79/mach-rb750.c b/target/linux/ar71xx/files/arch/mips/ath79/mach-rb750.c index 71d48679d2..8224bebf89 100644 --- a/target/linux/ar71xx/files/arch/mips/ath79/mach-rb750.c +++ b/target/linux/ar71xx/files/arch/mips/ath79/mach-rb750.c @@ -282,7 +282,6 @@ MIPS_MACHINE(ATH79_MACH_RB_750G_R3, "750Gr3", "MikroTik RouterBOARD 750GL", #define RB751_HARDCONFIG 0x1f00b000 #define RB751_HARDCONFIG_SIZE 0x1000 -#define RB751_MAC_ADDRESS_OFFSET 0xE80 static void __init rb751_wlan_setup(void) { @@ -290,6 +289,8 @@ static void __init rb751_wlan_setup(void) struct ath9k_platform_data *wmac_data; u16 tag_len; u8 *tag; + u16 mac_len; + u8 *mac; int err; wmac_data = ap9x_pci_get_wmac_data(0); @@ -314,7 +315,14 @@ static void __init rb751_wlan_setup(void) return; } - ap91_pci_init(NULL, hardconfig + RB751_MAC_ADDRESS_OFFSET); + err = routerboot_find_tag(hardconfig, RB751_HARDCONFIG_SIZE, + RB_ID_MAC_ADDRESS_PACK, &mac, &mac_len); + if (err) { + pr_err("rb75x: no mac address found\n"); + return; + } + + ap91_pci_init(NULL, mac); } static void __init rb751_setup(void) -- 2.30.2