diff options
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/atl1/atl1_hw.c | 35 |
1 files changed, 20 insertions, 15 deletions
diff --git a/drivers/net/atl1/atl1_hw.c b/drivers/net/atl1/atl1_hw.c index e28707a2b482..314dbaabb642 100644 --- a/drivers/net/atl1/atl1_hw.c +++ b/drivers/net/atl1/atl1_hw.c @@ -243,14 +243,8 @@ static int atl1_get_permanent_address(struct atl1_hw *hw) i += 4; } -/* - * The following 2 lines are the Attansic originals. Saving for posterity. - * *(u32 *) & eth_addr[2] = LONGSWAP(addr[0]); - * *(u16 *) & eth_addr[0] = SHORTSWAP(*(u16 *) & addr[1]); - */ - *(u32 *) & eth_addr[2] = swab32(addr[0]); - *(u16 *) & eth_addr[0] = swab16(*(u16 *) & addr[1]); - + *(u32 *) ð_addr[2] = swab32(addr[0]); + *(u16 *) ð_addr[0] = swab16(*(u16 *) &addr[1]); if (is_valid_ether_addr(eth_addr)) { memcpy(hw->perm_mac_addr, eth_addr, ETH_ALEN); return 0; @@ -281,17 +275,28 @@ static int atl1_get_permanent_address(struct atl1_hw *hw) i += 4; } -/* - * The following 2 lines are the Attansic originals. Saving for posterity. - * *(u32 *) & eth_addr[2] = LONGSWAP(addr[0]); - * *(u16 *) & eth_addr[0] = SHORTSWAP(*(u16 *) & addr[1]); - */ - *(u32 *) & eth_addr[2] = swab32(addr[0]); - *(u16 *) & eth_addr[0] = swab16(*(u16 *) & addr[1]); + *(u32 *) ð_addr[2] = swab32(addr[0]); + *(u16 *) ð_addr[0] = swab16(*(u16 *) &addr[1]); if (is_valid_ether_addr(eth_addr)) { memcpy(hw->perm_mac_addr, eth_addr, ETH_ALEN); return 0; } + + /* + * On some motherboards, the MAC address is written by the + * BIOS directly to the MAC register during POST, and is + * not stored in eeprom. If all else thus far has failed + * to fetch the permanent MAC address, try reading it directly. + */ + addr[0] = ioread32(hw->hw_addr + REG_MAC_STA_ADDR); + addr[1] = ioread16(hw->hw_addr + (REG_MAC_STA_ADDR + 4)); + *(u32 *) ð_addr[2] = swab32(addr[0]); + *(u16 *) ð_addr[0] = swab16(*(u16 *) &addr[1]); + if (is_valid_ether_addr(eth_addr)) { + memcpy(hw->perm_mac_addr, eth_addr, ETH_ALEN); + return 0; + } + return 1; } |