[PATCH 04/11] tlan: Fix MAC address byte order on OC-2325/OC-2326

Ondrej Zary
2014-06-21T14:49:44Z

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>
---
drivers/net/ethernet/ti/tlan.c | 11 +++++++++--
1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/ti/tlan.c b/drivers/net/ethernet/ti/tlan.c
index ae9fece..31d4a96 100644
--- a/drivers/net/ethernet/ti/tlan.c
+++ b/drivers/net/ethernet/ti/tlan.c
@@ -864,7 +864,7 @@ 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]);
@@ -872,7 +872,14 @@ 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);

--
Ondrej Zary