From: Ondrej Zary <linux@rainbow-software.org>
Date: Mon, 30 Jun 2014 16:38:30 +0000 (+0200)
Subject: tlan: Fix MAC address byte order on OC-2325/OC-2326
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=59be4ad6bb01fa80b6ad2cf15163ccb617f7d603;p=openwrt%2Fstaging%2Fblogic.git

tlan: Fix MAC address byte order on OC-2325/OC-2326

Olicom OC-2325 and OC-2326 cards have the MAC address byte-swapped in EEPROM.
Byte-swap the MAC address if it's located at offset 0xF8.

Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/net/ethernet/ti/tlan.c b/drivers/net/ethernet/ti/tlan.c
index 00ec926084ea..cacc76da91a2 100644
--- a/drivers/net/ethernet/ti/tlan.c
+++ b/drivers/net/ethernet/ti/tlan.c
@@ -863,7 +863,7 @@ static int tlan_init(struct net_device *dev)
 		priv->rx_list_dma + sizeof(struct tlan_list)*TLAN_NUM_RX_LISTS;
 
 	err = 0;
-	for (i = 0;  i < 6 ; i++)
+	for (i = 0; i < ETH_ALEN; i++)
 		err |= tlan_ee_read_byte(dev,
 					 (u8) priv->adapter->addr_ofs + i,
 					 (u8 *) &dev->dev_addr[i]);
@@ -871,7 +871,14 @@ static int tlan_init(struct net_device *dev)
 		pr_err("%s: Error reading MAC from eeprom: %d\n",
 		       dev->name, err);
 	}
-	dev->addr_len = 6;
+	/* Olicom OC-2325/OC-2326 have the address byte-swapped */
+	if (priv->adapter->addr_ofs == 0xf8) {
+		for (i = 0; i < ETH_ALEN; i += 2) {
+			char tmp = dev->dev_addr[i];
+			dev->dev_addr[i] = dev->dev_addr[i + 1];
+			dev->dev_addr[i + 1] = tmp;
+		}
+	}
 
 	netif_carrier_off(dev);