diff options
Diffstat (limited to 'drivers/net/e1000e/ich8lan.c')
| -rw-r--r-- | drivers/net/e1000e/ich8lan.c | 41 |
1 files changed, 40 insertions, 1 deletions
diff --git a/drivers/net/e1000e/ich8lan.c b/drivers/net/e1000e/ich8lan.c index 8274499b7df6..5e55de002487 100644 --- a/drivers/net/e1000e/ich8lan.c +++ b/drivers/net/e1000e/ich8lan.c @@ -131,6 +131,10 @@ /* PHY Power Management Control */ #define HV_PM_CTRL PHY_REG(770, 17) +/* PHY Low Power Idle Control */ +#define I82579_LPI_CTRL PHY_REG(772, 20) +#define I82579_LPI_CTRL_ENABLE_MASK 0x6000 + /* Strapping Option Register - RO */ #define E1000_STRAP 0x0000C #define E1000_STRAP_SMBUS_ADDRESS_MASK 0x00FE0000 @@ -569,6 +573,35 @@ static s32 e1000_init_mac_params_ich8lan(struct e1000_adapter *adapter) } /** + * e1000_set_eee_pchlan - Enable/disable EEE support + * @hw: pointer to the HW structure + * + * Enable/disable EEE based on setting in dev_spec structure. The bits in + * the LPI Control register will remain set only if/when link is up. + **/ +static s32 e1000_set_eee_pchlan(struct e1000_hw *hw) +{ + s32 ret_val = 0; + u16 phy_reg; + + if (hw->phy.type != e1000_phy_82579) + goto out; + + ret_val = e1e_rphy(hw, I82579_LPI_CTRL, &phy_reg); + if (ret_val) + goto out; + + if (hw->dev_spec.ich8lan.eee_disable) + phy_reg &= ~I82579_LPI_CTRL_ENABLE_MASK; + else + phy_reg |= I82579_LPI_CTRL_ENABLE_MASK; + + ret_val = e1e_wphy(hw, I82579_LPI_CTRL, phy_reg); +out: + return ret_val; +} + +/** * e1000_check_for_copper_link_ich8lan - Check for link (Copper) * @hw: pointer to the HW structure * @@ -625,6 +658,11 @@ static s32 e1000_check_for_copper_link_ich8lan(struct e1000_hw *hw) */ e1000e_check_downshift(hw); + /* Enable/Disable EEE after link up */ + ret_val = e1000_set_eee_pchlan(hw); + if (ret_val) + goto out; + /* * If we are forcing speed/duplex, then we simply return since * we have already determined whether we have link or not. @@ -3820,7 +3858,8 @@ struct e1000_info e1000_pch2_info = { | FLAG_HAS_FLASH | FLAG_HAS_JUMBO_FRAMES | FLAG_APME_IN_WUC, - .flags2 = FLAG2_HAS_PHY_STATS, + .flags2 = FLAG2_HAS_PHY_STATS + | FLAG2_HAS_EEE, .pba = 18, .max_hw_frame_size = DEFAULT_JUMBO, .get_variants = e1000_get_variants_ich8lan, |