ax88796: Add method to take MAC from platform data

Implement a way to provide the MAC address for ax88796 devices from
their platform data. Boards might decide to set the address
programmatically, taken from boot tags or other sources.

Signed-off-by: Daniel Mack <daniel@caiaq.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 12 insertions, 5 deletions

diff --git a/drivers/net/ax88796.c b/drivers/net/ax88796.c
index e7c9748437d4..62d9c9cc5671 100644
--- a/drivers/net/ax88796.c
+++ b/drivers/net/ax88796.c
@@ -733,12 +733,19 @@ static int ax_init_dev(struct net_device *dev, int first_init)
         /* load the mac-address from the device if this is the
          * first time we've initialised */
 
-        if (first_init && ax->plat->flags & AXFLG_MAC_FROMDEV) {
-                ei_outb(E8390_NODMA + E8390_PAGE1 + E8390_STOP,
-                        ei_local->mem + E8390_CMD); /* 0x61 */
+        if (first_init) {
+                if (ax->plat->flags & AXFLG_MAC_FROMDEV) {
+                        ei_outb(E8390_NODMA + E8390_PAGE1 + E8390_STOP,
+                                ei_local->mem + E8390_CMD); /* 0x61 */
+                        for (i = 0; i < ETHER_ADDR_LEN; i++)
+                                dev->dev_addr[i] =
+                                        ei_inb(ioaddr + EN1_PHYS_SHIFT(i));
+                }
 
-                for (i = 0 ; i < ETHER_ADDR_LEN ; i++)
-                        dev->dev_addr[i] = ei_inb(ioaddr + EN1_PHYS_SHIFT(i));
+                if ((ax->plat->flags & AXFLG_MAC_FROMPLATFORM) &&
+                     ax->plat->mac_addr)
+                        memcpy(dev->dev_addr, ax->plat->mac_addr,
+                                ETHER_ADDR_LEN);
         }
 
         ax_reset_8390(dev);