wl18xx: derive the MAC address from the BD_ADDR in fuse ROM

Add the get_mac operation in order to fetch the BD_ADDR from fuse ROM,
so that we can derive the WLAN MAC addresses from it.
Signed-off-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>

drivers/net/wireless/ti/wl18xx/main.c

@@ -975,6 +975,23 @@ static int wl18xx_plt_init(struct wl1271 *wl)
 	return wl->ops->boot(wl);
 }
 
+static void wl18xx_get_mac(struct wl1271 *wl)
+{
+	u32 mac1, mac2;
+
+	wlcore_set_partition(wl, &wl->ptable[PART_TOP_PRCM_ELP_SOC]);
+
+	mac1 = wl1271_read32(wl, WL18XX_REG_FUSE_BD_ADDR_1);
+	mac2 = wl1271_read32(wl, WL18XX_REG_FUSE_BD_ADDR_2);
+
+	/* these are the two parts of the BD_ADDR */
+	wl->fuse_oui_addr = ((mac2 & 0xffff) << 8) +
+		((mac1 & 0xff000000) >> 24);
+	wl->fuse_nic_addr = (mac1 & 0xffffff);
+
+	wlcore_set_partition(wl, &wl->ptable[PART_DOWN]);
+}
+
 static struct wlcore_ops wl18xx_ops = {
 	.identify_chip	= wl18xx_identify_chip,
 	.boot		= wl18xx_boot,
@@ -994,6 +1011,7 @@ static struct wlcore_ops wl18xx_ops = {
 	.set_rx_csum = wl18xx_set_rx_csum,
 	.sta_get_ap_rate_mask = wl18xx_sta_get_ap_rate_mask,
 	.ap_get_mimo_wide_rate_mask = wl18xx_ap_get_mimo_wide_rate_mask,
+	.get_mac	= wl18xx_get_mac,
 };
 
 /* HT cap appropriate for wide channels */

drivers/net/wireless/ti/wl18xx/reg.h

@@ -132,6 +132,9 @@
 #define WL18XX_PG_VER_MASK		0x70
 #define WL18XX_PG_VER_OFFSET		4
 
+#define WL18XX_REG_FUSE_BD_ADDR_1	0xA02602
+#define WL18XX_REG_FUSE_BD_ADDR_2	0xA02606
+
 #define WL18XX_CMD_MBOX_ADDRESS		0xB007B4
 
 #define WL18XX_FW_STATUS_ADDR		0x50F8