[ar71xx] parse mac address on RouterBOARDs

[openwrt.git] / target / linux / ar71xx / files / drivers / net / ag71xx / ag71xx_main.c

diff --git a/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_main.c b/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_main.c
index d4eebda..065f603 100644 (file)
--- a/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_main.c
+++ b/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_main.c
@@ -692,13 +692,14 @@ static void ag71xx_set_multicast_list(struct net_device *dev)
 
 static int __init ag71xx_probe(struct platform_device *pdev)
 {
-       static u8 default_mac[ETH_ALEN] = {0x00, 0xba, 0xdb, 0xad, 0xba, 0xd0};
        struct net_device *dev;
        struct resource *res;
        struct ag71xx *ag;
+       struct ag71xx_platform_data *pdata;
        int err;
 
-       if (!pdev->dev.platform_data) {
+       pdata = pdev->dev.platform_data;
+       if (!pdata) {
                dev_err(&pdev->dev, "no platform data specified\n");
                err = -ENXIO;
                goto err_out;
@@ -765,8 +766,14 @@ static int __init ag71xx_probe(struct platform_device *pdev)
 
        netif_napi_add(dev, &ag->napi, ag71xx_poll, AG71XX_NAPI_WEIGHT);
 
-       memcpy(dev->dev_addr, default_mac, ETH_ALEN);
-       dev->dev_addr[5] += pdev->id & 0xff;
+       if (is_valid_ether_addr(pdata->mac_addr))
+               memcpy(dev->dev_addr, pdata->mac_addr, ETH_ALEN);
+       else {
+               dev->dev_addr[0] = 0xde;
+               dev->dev_addr[1] = 0xad;
+               get_random_bytes(&dev->dev_addr[2], 3);
+               dev->dev_addr[5] = pdev->id & 0xff;
+       }
 
        err = register_netdev(dev);
        if (err) {