diff options
Diffstat (limited to 'drivers/net/igb/e1000_82575.c')
| -rw-r--r-- | drivers/net/igb/e1000_82575.c | 22 |
1 files changed, 19 insertions, 3 deletions
diff --git a/drivers/net/igb/e1000_82575.c b/drivers/net/igb/e1000_82575.c index 0f563c8c5ff..c0857bdfb03 100644 --- a/drivers/net/igb/e1000_82575.c +++ b/drivers/net/igb/e1000_82575.c @@ -1,7 +1,7 @@ /******************************************************************************* Intel(R) Gigabit Ethernet Linux driver - Copyright(c) 2007-2009 Intel Corporation. + Copyright(c) 2007-2011 Intel Corporation. This program is free software; you can redistribute it and/or modify it under the terms and conditions of the GNU General Public License, @@ -1156,10 +1156,13 @@ static s32 igb_setup_serdes_link_82575(struct e1000_hw *hw) { u32 ctrl_ext, ctrl_reg, reg; bool pcs_autoneg; + s32 ret_val = E1000_SUCCESS; + u16 data; if ((hw->phy.media_type != e1000_media_type_internal_serdes) && !igb_sgmii_active_82575(hw)) - return 0; + return ret_val; + /* * On the 82575, SerDes loopback mode persists until it is @@ -1203,6 +1206,18 @@ static s32 igb_setup_serdes_link_82575(struct e1000_hw *hw) /* disable PCS autoneg and support parallel detect only */ pcs_autoneg = false; default: + if (hw->mac.type == e1000_82575 || + hw->mac.type == e1000_82576) { + ret_val = hw->nvm.ops.read(hw, NVM_COMPAT, 1, &data); + if (ret_val) { + printk(KERN_DEBUG "NVM Read Error\n\n"); + return ret_val; + } + + if (data & E1000_EEPROM_PCS_AUTONEG_DISABLE_BIT) + pcs_autoneg = false; + } + /* * non-SGMII modes only supports a speed of 1000/Full for the * link so it is best to just force the MAC and let the pcs @@ -1250,7 +1265,7 @@ static s32 igb_setup_serdes_link_82575(struct e1000_hw *hw) if (!igb_sgmii_active_82575(hw)) igb_force_mac_fc(hw); - return 0; + return ret_val; } /** @@ -1735,6 +1750,7 @@ static s32 igb_reset_hw_82580(struct e1000_hw *hw) ctrl |= E1000_CTRL_RST; wr32(E1000_CTRL, ctrl); + wrfl(); /* Add delay to insure DEV_RST has time to complete */ if (global_device_reset) |