MIPS: au1000_eth: Get ethernet address from platform_data

au1000_eth uses firmware calls to get a valid MAC address, and changes
it depending on platform device id.  This patch moves this logic out of
the driver into the platform device registration part, where boards with
supported chips can use whatever firmware interface they need; the default
implementation maintains compatibility with existing, YAMON-based firmware.

Tested-by: Wolfgang Grandegger <wg@denx.de>
Acked-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Manuel Lauss <manuel.lauss@googlemail.com>
To: Linux-MIPS <linux-mips@linux-mips.org>
Cc: netdev@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/1481/
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 7 insertions, 24 deletions

diff --git a/drivers/net/au1000_eth.c b/drivers/net/au1000_eth.c
index ece6128bef14..17e7e27eb222 100644
--- a/drivers/net/au1000_eth.c
+++ b/drivers/net/au1000_eth.c
@@ -104,14 +104,6 @@ MODULE_VERSION(DRV_VERSION);
  * complete immediately.
  */
 
-/* These addresses are only used if yamon doesn't tell us what
- * the mac address is, and the mac address is not passed on the
- * command line.
- */
-static unsigned char au1000_mac_addr[6] __devinitdata = {
-        0x00, 0x50, 0xc2, 0x0c, 0x30, 0x00
-};
-
 struct au1000_private *au_macs[NUM_ETH_INTERFACES];
 
 /*
@@ -1002,7 +994,6 @@ static int __devinit au1000_probe(struct platform_device *pdev)
         db_dest_t *pDB, *pDBfree;
         int irq, i, err = 0;
         struct resource *base, *macen;
-        char ethaddr[6];
 
         base = platform_get_resource(pdev, IORESOURCE_MEM, 0);
         if (!base) {
@@ -1079,24 +1070,13 @@ static int __devinit au1000_probe(struct platform_device *pdev)
         }
         aup->mac_id = pdev->id;
 
-        if (pdev->id == 0) {
-                if (prom_get_ethernet_addr(ethaddr) == 0)
-                        memcpy(au1000_mac_addr, ethaddr, sizeof(au1000_mac_addr));
-                else {
-                        netdev_info(dev, "No MAC address found\n");
-                                /* Use the hard coded MAC addresses */
-                }
-
+        if (pdev->id == 0)
                 au1000_setup_hw_rings(aup, MAC0_RX_DMA_ADDR, MAC0_TX_DMA_ADDR);
-        } else if (pdev->id == 1)
+        else if (pdev->id == 1)
                 au1000_setup_hw_rings(aup, MAC1_RX_DMA_ADDR, MAC1_TX_DMA_ADDR);
 
-        /*
-         * Assign to the Ethernet ports two consecutive MAC addresses
-         * to match those that are printed on their stickers
-         */
-        memcpy(dev->dev_addr, au1000_mac_addr, sizeof(au1000_mac_addr));
-        dev->dev_addr[5] += pdev->id;
+        /* set a random MAC now in case platform_data doesn't provide one */
+        random_ether_addr(dev->dev_addr);
 
         *aup->enable = 0;
         aup->mac_enabled = 0;
@@ -1106,6 +1086,9 @@ static int __devinit au1000_probe(struct platform_device *pdev)
                 dev_info(&pdev->dev, "no platform_data passed, PHY search on MAC0\n");
                 aup->phy1_search_mac0 = 1;
         } else {
+                if (is_valid_ether_addr(pd->mac))
+                        memcpy(dev->dev_addr, pd->mac, 6);
+
                 aup->phy_static_config = pd->phy_static_config;
                 aup->phy_search_highest_addr = pd->phy_search_highest_addr;
                 aup->phy1_search_mac0 = pd->phy1_search_mac0;