wl18xx: use locally administered MAC address if not available from fuse

In some R&D chips, the device may be left untrimmed and with the MAC
address missing from fuse ROM.  In order to support those devices,
apply a random locally administered MAC address instead.

Signed-off-by: Luciano Coelho <coelho@ti.com>

1 files changed, 11 insertions, 0 deletions

diff --git a/drivers/net/wireless/ti/wl18xx/main.c b/drivers/net/wireless/ti/wl18xx/main.c
index ae85ae46c61b..7aa0eb848c5a 100644
--- a/drivers/net/wireless/ti/wl18xx/main.c
+++ b/drivers/net/wireless/ti/wl18xx/main.c
@@ -23,6 +23,7 @@
 #include <linux/platform_device.h>
 #include <linux/ip.h>
 #include <linux/firmware.h>
+#include <linux/etherdevice.h>
 
 #include "../wlcore/wlcore.h"
 #include "../wlcore/debug.h"
@@ -1318,6 +1319,16 @@ static int wl18xx_get_mac(struct wl1271 *wl)
                 ((mac1 & 0xff000000) >> 24);
         wl->fuse_nic_addr = (mac1 & 0xffffff);
 
+        if (!wl->fuse_oui_addr && !wl->fuse_nic_addr) {
+                u8 mac[ETH_ALEN];
+
+                eth_random_addr(mac);
+
+                wl->fuse_oui_addr = (mac[0] << 16) + (mac[1] << 8) + mac[2];
+                wl->fuse_nic_addr = (mac[3] << 16) + (mac[4] << 8) + mac[5];
+                wl1271_warning("MAC address from fuse not available, using random locally administered addresses.");
+        }
+
         ret = wlcore_set_partition(wl, &wl->ptable[PART_DOWN]);
 
 out: