diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ethernet/marvell/pxa168_eth.c | 32 |
1 files changed, 30 insertions, 2 deletions
diff --git a/drivers/net/ethernet/marvell/pxa168_eth.c b/drivers/net/ethernet/marvell/pxa168_eth.c index 6917904409b8..24de41231593 100644 --- a/drivers/net/ethernet/marvell/pxa168_eth.c +++ b/drivers/net/ethernet/marvell/pxa168_eth.c @@ -35,6 +35,7 @@ #include <linux/kernel.h> #include <linux/module.h> #include <linux/of.h> +#include <linux/of_net.h> #include <linux/phy.h> #include <linux/platform_device.h> #include <linux/pxa168_eth.h> @@ -606,6 +607,21 @@ static void pxa168_eth_set_rx_mode(struct net_device *dev) update_hash_table_mac_address(pep, NULL, ha->addr); } +static void pxa168_eth_get_mac_address(struct net_device *dev, + unsigned char *addr) +{ + struct pxa168_eth_private *pep = netdev_priv(dev); + unsigned int mac_h = rdl(pep, MAC_ADDR_HIGH); + unsigned int mac_l = rdl(pep, MAC_ADDR_LOW); + + addr[0] = (mac_h >> 24) & 0xff; + addr[1] = (mac_h >> 16) & 0xff; + addr[2] = (mac_h >> 8) & 0xff; + addr[3] = mac_h & 0xff; + addr[4] = (mac_l >> 8) & 0xff; + addr[5] = mac_l & 0xff; +} + static int pxa168_eth_set_mac_address(struct net_device *dev, void *addr) { struct sockaddr *sa = addr; @@ -1467,6 +1483,7 @@ static int pxa168_eth_probe(struct platform_device *pdev) struct resource *res; struct clk *clk; struct device_node *np; + const unsigned char *mac_addr = NULL; int err; printk(KERN_NOTICE "PXA168 10/100 Ethernet Driver\n"); @@ -1508,8 +1525,19 @@ static int pxa168_eth_probe(struct platform_device *pdev) INIT_WORK(&pep->tx_timeout_task, pxa168_eth_tx_timeout_task); - dev_info(&pdev->dev, "Using random mac address\n"); - eth_hw_addr_random(dev); + if (pdev->dev.of_node) + mac_addr = of_get_mac_address(pdev->dev.of_node); + + if (mac_addr && is_valid_ether_addr(mac_addr)) { + ether_addr_copy(dev->dev_addr, mac_addr); + } else { + /* try reading the mac address, if set by the bootloader */ + pxa168_eth_get_mac_address(dev, dev->dev_addr); + if (!is_valid_ether_addr(dev->dev_addr)) { + dev_info(&pdev->dev, "Using random mac address\n"); + eth_hw_addr_random(dev); + } + } pep->rx_ring_size = NUM_RX_DESCS; pep->tx_ring_size = NUM_TX_DESCS; |