diff options
| author | Jie Yang <jie.yang@atheros.com> | 2009-04-27 19:42:03 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-04-28 01:53:10 -0700 |
| commit | 52fbc1007eb071c40a367462476eee695b412578 (patch) | |
| tree | d046b8c29284da6eec4862e77fa77082e3398b8a | |
| parent | 36e7b1b8dac1a785abca3a121b6b0b79f1a8d7df (diff) | |
| download | blackbird-op-linux-52fbc1007eb071c40a367462476eee695b412578.tar.gz blackbird-op-linux-52fbc1007eb071c40a367462476eee695b412578.zip | |
atl1c: disable L1/L0s when link detected
Disable L1/L0s when link detected. We enable L1/L0s when link connected
before, but there is some hareware error on some platform. So just diable
this feature when link connected. This feature is about power saving.
Signed-off-by: Jie Yang <jie.yang@atheros.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/atl1c/atl1c_main.c | 24 |
1 files changed, 7 insertions, 17 deletions
diff --git a/drivers/net/atl1c/atl1c_main.c b/drivers/net/atl1c/atl1c_main.c index deb7b53167ee..8b17278c4a58 100644 --- a/drivers/net/atl1c/atl1c_main.c +++ b/drivers/net/atl1c/atl1c_main.c @@ -220,11 +220,11 @@ static void atl1c_check_link_status(struct atl1c_adapter *adapter) /* link down */ if (netif_carrier_ok(netdev)) { hw->hibernate = true; - atl1c_set_aspm(hw, false); if (atl1c_stop_mac(hw) != 0) if (netif_msg_hw(adapter)) dev_warn(&pdev->dev, "stop mac failed\n"); + atl1c_set_aspm(hw, false); } netif_carrier_off(netdev); } else { @@ -240,10 +240,10 @@ static void atl1c_check_link_status(struct atl1c_adapter *adapter) adapter->link_duplex != duplex) { adapter->link_speed = speed; adapter->link_duplex = duplex; + atl1c_set_aspm(hw, true); atl1c_enable_tx_ctrl(hw); atl1c_enable_rx_ctrl(hw); atl1c_setup_mac_ctrl(adapter); - atl1c_set_aspm(hw, true); if (netif_msg_link(adapter)) dev_info(&pdev->dev, "%s: %s NIC Link is Up<%d Mbps %s>\n", @@ -1242,9 +1242,7 @@ static void atl1c_set_aspm(struct atl1c_hw *hw, bool linkup) AT_READ_REG(hw, REG_PM_CTRL, &pm_ctrl_data); - pm_ctrl_data &= PM_CTRL_SERDES_PD_EX_L1; - pm_ctrl_data |= ~PM_CTRL_SERDES_BUDS_RX_L1_EN; - pm_ctrl_data |= ~PM_CTRL_SERDES_L1_EN; + pm_ctrl_data &= ~PM_CTRL_SERDES_PD_EX_L1; pm_ctrl_data &= ~(PM_CTRL_L1_ENTRY_TIMER_MASK << PM_CTRL_L1_ENTRY_TIMER_SHIFT); @@ -1254,19 +1252,11 @@ static void atl1c_set_aspm(struct atl1c_hw *hw, bool linkup) pm_ctrl_data |= PM_CTRL_SERDES_PLL_L1_EN; pm_ctrl_data &= ~PM_CTRL_CLK_SWH_L1; - if (hw->ctrl_flags & ATL1C_ASPM_L1_SUPPORT) { - pm_ctrl_data |= AT_ASPM_L1_TIMER << - PM_CTRL_L1_ENTRY_TIMER_SHIFT; - pm_ctrl_data |= PM_CTRL_ASPM_L1_EN; - } else - pm_ctrl_data &= ~PM_CTRL_ASPM_L1_EN; - - if (hw->ctrl_flags & ATL1C_ASPM_L0S_SUPPORT) - pm_ctrl_data |= PM_CTRL_ASPM_L0S_EN; - else - pm_ctrl_data &= ~PM_CTRL_ASPM_L0S_EN; - + pm_ctrl_data |= PM_CTRL_SERDES_BUDS_RX_L1_EN; + pm_ctrl_data |= PM_CTRL_SERDES_L1_EN; } else { + pm_ctrl_data &= ~PM_CTRL_SERDES_BUDS_RX_L1_EN; + pm_ctrl_data &= ~PM_CTRL_SERDES_L1_EN; pm_ctrl_data &= ~PM_CTRL_ASPM_L0S_EN; pm_ctrl_data &= ~PM_CTRL_SERDES_PLL_L1_EN; |
