ath5k: add a new bus op for reading the mac address

On AHB, the calibration data usually does not contain a valid MAC address,
the correct MAC address is stored in the board config.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Tested-by: Sedat Dilek <sedat.dilek@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 18 insertions, 0 deletions

diff --git a/drivers/net/wireless/ath/ath5k/ahb.c b/drivers/net/wireless/ath/ath5k/ahb.c
index 82324e98efef..1374e647f4e6 100644
--- a/drivers/net/wireless/ath/ath5k/ahb.c
+++ b/drivers/net/wireless/ath/ath5k/ahb.c
@@ -18,6 +18,7 @@
 
 #include <linux/nl80211.h>
 #include <linux/platform_device.h>
+#include <linux/etherdevice.h>
 #include <ar231x_platform.h>
 #include "ath5k.h"
 #include "debug.h"
@@ -62,10 +63,27 @@ int ath5k_hw_read_srev(struct ath5k_hw *ah)
         return 0;
 }
 
+static int ath5k_ahb_eeprom_read_mac(struct ath5k_hw *ah, u8 *mac)
+{
+        struct ath5k_softc *sc = ah->ah_sc;
+        struct platform_device *pdev = to_platform_device(sc->dev);
+        struct ar231x_board_config *bcfg = pdev->dev.platform_data;
+        u8 *cfg_mac;
+
+        if (to_platform_device(sc->dev)->id == 0)
+                cfg_mac = bcfg->config->wlan0_mac;
+        else
+                cfg_mac = bcfg->config->wlan1_mac;
+
+        memcpy(mac, cfg_mac, ETH_ALEN);
+        return 0;
+}
+
 static const struct ath_bus_ops ath_ahb_bus_ops = {
         .ath_bus_type = ATH_AHB,
         .read_cachesize = ath5k_ahb_read_cachesize,
         .eeprom_read = ath5k_ahb_eeprom_read,
+        .eeprom_read_mac = ath5k_ahb_eeprom_read_mac,
 };
 
 /*Initialization*/