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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>
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@ -220,11 +220,11 @@ static void atl1c_check_link_status(struct atl1c_adapter *adapter)
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/* link down */
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if (netif_carrier_ok(netdev)) {
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hw->hibernate = true;
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atl1c_set_aspm(hw, false);
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if (atl1c_stop_mac(hw) != 0)
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if (netif_msg_hw(adapter))
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dev_warn(&pdev->dev,
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"stop mac failed\n");
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atl1c_set_aspm(hw, false);
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}
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netif_carrier_off(netdev);
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} else {
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@ -240,10 +240,10 @@ static void atl1c_check_link_status(struct atl1c_adapter *adapter)
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adapter->link_duplex != duplex) {
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adapter->link_speed = speed;
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adapter->link_duplex = duplex;
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atl1c_set_aspm(hw, true);
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atl1c_enable_tx_ctrl(hw);
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atl1c_enable_rx_ctrl(hw);
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atl1c_setup_mac_ctrl(adapter);
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atl1c_set_aspm(hw, true);
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if (netif_msg_link(adapter))
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dev_info(&pdev->dev,
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"%s: %s NIC Link is Up<%d Mbps %s>\n",
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@ -1242,9 +1242,7 @@ static void atl1c_set_aspm(struct atl1c_hw *hw, bool linkup)
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AT_READ_REG(hw, REG_PM_CTRL, &pm_ctrl_data);
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pm_ctrl_data &= PM_CTRL_SERDES_PD_EX_L1;
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pm_ctrl_data |= ~PM_CTRL_SERDES_BUDS_RX_L1_EN;
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pm_ctrl_data |= ~PM_CTRL_SERDES_L1_EN;
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pm_ctrl_data &= ~PM_CTRL_SERDES_PD_EX_L1;
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pm_ctrl_data &= ~(PM_CTRL_L1_ENTRY_TIMER_MASK <<
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PM_CTRL_L1_ENTRY_TIMER_SHIFT);
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@ -1254,19 +1252,11 @@ static void atl1c_set_aspm(struct atl1c_hw *hw, bool linkup)
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pm_ctrl_data |= PM_CTRL_SERDES_PLL_L1_EN;
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pm_ctrl_data &= ~PM_CTRL_CLK_SWH_L1;
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if (hw->ctrl_flags & ATL1C_ASPM_L1_SUPPORT) {
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pm_ctrl_data |= AT_ASPM_L1_TIMER <<
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PM_CTRL_L1_ENTRY_TIMER_SHIFT;
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pm_ctrl_data |= PM_CTRL_ASPM_L1_EN;
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} else
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pm_ctrl_data &= ~PM_CTRL_ASPM_L1_EN;
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if (hw->ctrl_flags & ATL1C_ASPM_L0S_SUPPORT)
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pm_ctrl_data |= PM_CTRL_ASPM_L0S_EN;
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else
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pm_ctrl_data &= ~PM_CTRL_ASPM_L0S_EN;
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pm_ctrl_data |= PM_CTRL_SERDES_BUDS_RX_L1_EN;
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pm_ctrl_data |= PM_CTRL_SERDES_L1_EN;
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} else {
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pm_ctrl_data &= ~PM_CTRL_SERDES_BUDS_RX_L1_EN;
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pm_ctrl_data &= ~PM_CTRL_SERDES_L1_EN;
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pm_ctrl_data &= ~PM_CTRL_ASPM_L0S_EN;
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pm_ctrl_data &= ~PM_CTRL_SERDES_PLL_L1_EN;
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