diff options
Diffstat (limited to 'drivers/net/usb/smsc95xx.c')
| -rw-r--r-- | drivers/net/usb/smsc95xx.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/drivers/net/usb/smsc95xx.c b/drivers/net/usb/smsc95xx.c index 66b3ab9f614e..2edc2bc6d1b9 100644 --- a/drivers/net/usb/smsc95xx.c +++ b/drivers/net/usb/smsc95xx.c @@ -29,6 +29,7 @@ #include <linux/crc32.h> #include <linux/usb/usbnet.h> #include <linux/slab.h> +#include <linux/of_net.h> #include "smsc95xx.h" #define SMSC_CHIPNAME "smsc95xx" @@ -765,6 +766,15 @@ static int smsc95xx_ioctl(struct net_device *netdev, struct ifreq *rq, int cmd) static void smsc95xx_init_mac_address(struct usbnet *dev) { + const u8 *mac_addr; + + /* maybe the boot loader passed the MAC address in devicetree */ + mac_addr = of_get_mac_address(dev->udev->dev.of_node); + if (mac_addr) { + memcpy(dev->net->dev_addr, mac_addr, ETH_ALEN); + return; + } + /* try reading mac address from EEPROM */ if (smsc95xx_read_eeprom(dev, EEPROM_MAC_OFFSET, ETH_ALEN, dev->net->dev_addr) == 0) { @@ -775,7 +785,7 @@ static void smsc95xx_init_mac_address(struct usbnet *dev) } } - /* no eeprom, or eeprom values are invalid. generate random MAC */ + /* no useful static MAC address found. generate a random one */ eth_hw_addr_random(dev->net); netif_dbg(dev, ifup, dev->net, "MAC address set to eth_random_addr\n"); } |