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Subject[PATCH 31/37] atl1c: add function atl1c_power_saving
Date
This function is used for suspend of S1/S3/S4 and driver remove.
It sets MAC/PHY based on the WoL configuration to get lower
power consumption.
atl1c_phy_power_saving is renamed to atl1c_phy_to_ps_link, this
function is just make PHY enter a link/speed mode to eat less
power.
REG_MAC_CTRL register is refined as well.

Signed-off-by: xiong <xiong@qca.qualcomm.com>
Tested-by: Liu David <dwliu@qca.qualcomm.com>
---
drivers/net/ethernet/atheros/atl1c/atl1c_hw.c | 74 ++++++++++++++++---
drivers/net/ethernet/atheros/atl1c/atl1c_hw.h | 71 +++++++++++-------
drivers/net/ethernet/atheros/atl1c/atl1c_main.c | 90 +----------------------
3 files changed, 108 insertions(+), 127 deletions(-)
diff --git a/drivers/net/ethernet/atheros/atl1c/atl1c_hw.c b/drivers/net/ethernet/atheros/atl1c/atl1c_hw.c
index 7172d61..a077ab8 100644
--- a/drivers/net/ethernet/atheros/atl1c/atl1c_hw.c
+++ b/drivers/net/ethernet/atheros/atl1c/atl1c_hw.c
@@ -522,17 +522,9 @@ static int atl1c_phy_setup_adv(struct atl1c_hw *hw)

void atl1c_phy_disable(struct atl1c_hw *hw)
{
- u32 phy_ctrl_data;
-
- AT_READ_REG(hw, REG_GPHY_CTRL, &phy_ctrl_data);
- phy_ctrl_data &= ~(GPHY_CTRL_EXT_RESET | GPHY_CTRL_CLS);
- phy_ctrl_data |= GPHY_CTRL_SEL_ANA_RST | GPHY_CTRL_HIB_PULSE |
- GPHY_CTRL_HIB_EN | GPHY_CTRL_PHY_IDDQ |
- GPHY_CTRL_PWDOWN_HW;
- AT_WRITE_REGW(hw, REG_GPHY_CTRL, phy_ctrl_data);
+ atl1c_power_saving(hw, 0);
}

-
int atl1c_phy_reset(struct atl1c_hw *hw)
{
struct atl1c_adapter *adapter = hw->adapter;
@@ -719,7 +711,8 @@ int atl1c_get_speed_and_duplex(struct atl1c_hw *hw, u16 *speed, u16 *duplex)
return 0;
}

-int atl1c_phy_power_saving(struct atl1c_hw *hw)
+/* select link mode to get lower power consumption */
+int atl1c_phy_to_ps_link(struct atl1c_hw *hw)
{
struct atl1c_adapter *adapter = (struct atl1c_adapter *)hw->adapter;
struct pci_dev *pdev = adapter->pdev;
@@ -790,3 +783,64 @@ int atl1c_restart_autoneg(struct atl1c_hw *hw)

return atl1c_write_phy_reg(hw, MII_BMCR, mii_bmcr_data);
}
+
+int atl1c_power_saving(struct atl1c_hw *hw, u32 wufc)
+{
+ struct atl1c_adapter *adapter = (struct atl1c_adapter *)hw->adapter;
+ struct pci_dev *pdev = adapter->pdev;
+ u32 master_ctrl, mac_ctrl, phy_ctrl;
+ u32 wol_ctrl, speed;
+ u16 phy_data;
+
+ wol_ctrl = 0;
+ speed = adapter->link_speed == SPEED_1000 ?
+ MAC_CTRL_SPEED_1000 : MAC_CTRL_SPEED_10_100;
+
+ AT_READ_REG(hw, REG_MASTER_CTRL, &master_ctrl);
+ AT_READ_REG(hw, REG_MAC_CTRL, &mac_ctrl);
+ AT_READ_REG(hw, REG_GPHY_CTRL, &phy_ctrl);
+
+ master_ctrl &= ~MASTER_CTRL_CLK_SEL_DIS;
+ mac_ctrl = FIELD_SETX(mac_ctrl, MAC_CTRL_SPEED, speed);
+ mac_ctrl &= ~(MAC_CTRL_DUPLX | MAC_CTRL_RX_EN | MAC_CTRL_TX_EN);
+ if (adapter->link_duplex == FULL_DUPLEX)
+ mac_ctrl |= MAC_CTRL_DUPLX;
+ phy_ctrl &= ~(GPHY_CTRL_EXT_RESET | GPHY_CTRL_CLS);
+ phy_ctrl |= GPHY_CTRL_SEL_ANA_RST | GPHY_CTRL_HIB_PULSE |
+ GPHY_CTRL_HIB_EN;
+ if (!wufc) { /* without WoL */
+ master_ctrl |= MASTER_CTRL_CLK_SEL_DIS;
+ phy_ctrl |= GPHY_CTRL_PHY_IDDQ | GPHY_CTRL_PWDOWN_HW;
+ AT_WRITE_REG(hw, REG_MASTER_CTRL, master_ctrl);
+ AT_WRITE_REG(hw, REG_MAC_CTRL, mac_ctrl);
+ AT_WRITE_REG(hw, REG_GPHY_CTRL, phy_ctrl);
+ AT_WRITE_REG(hw, REG_WOL_CTRL, 0);
+ hw->phy_configured = false; /* re-init PHY when resume */
+ return 0;
+ }
+ phy_ctrl |= GPHY_CTRL_EXT_RESET;
+ if (wufc & AT_WUFC_MAG) {
+ mac_ctrl |= MAC_CTRL_RX_EN | MAC_CTRL_BC_EN;
+ wol_ctrl |= WOL_MAGIC_EN | WOL_MAGIC_PME_EN;
+ if (hw->nic_type == athr_l2c_b && hw->revision_id == L2CB_V11)
+ wol_ctrl |= WOL_PATTERN_EN | WOL_PATTERN_PME_EN;
+ }
+ if (wufc & AT_WUFC_LNKC) {
+ wol_ctrl |= WOL_LINK_CHG_EN | WOL_LINK_CHG_PME_EN;
+ if (atl1c_write_phy_reg(hw, MII_IER, IER_LINK_UP) != 0) {
+ dev_dbg(&pdev->dev, "%s: write phy MII_IER faild.\n",
+ atl1c_driver_name);
+ }
+ }
+ /* clear PHY interrupt */
+ atl1c_read_phy_reg(hw, MII_ISR, &phy_data);
+
+ dev_dbg(&pdev->dev, "%s: suspend MAC=%x,MASTER=%x,PHY=0x%x,WOL=%x\n",
+ atl1c_driver_name, mac_ctrl, master_ctrl, phy_ctrl, wol_ctrl);
+ AT_WRITE_REG(hw, REG_MASTER_CTRL, master_ctrl);
+ AT_WRITE_REG(hw, REG_MAC_CTRL, mac_ctrl);
+ AT_WRITE_REG(hw, REG_GPHY_CTRL, phy_ctrl);
+ AT_WRITE_REG(hw, REG_WOL_CTRL, wol_ctrl);
+
+ return 0;
+}
diff --git a/drivers/net/ethernet/atheros/atl1c/atl1c_hw.h b/drivers/net/ethernet/atheros/atl1c/atl1c_hw.h
index eac90b2..59817ca 100644
--- a/drivers/net/ethernet/atheros/atl1c/atl1c_hw.h
+++ b/drivers/net/ethernet/atheros/atl1c/atl1c_hw.h
@@ -48,7 +48,8 @@ bool atl1c_read_eeprom(struct atl1c_hw *hw, u32 offset, u32 *p_value);
int atl1c_phy_init(struct atl1c_hw *hw);
int atl1c_check_eeprom_exist(struct atl1c_hw *hw);
int atl1c_restart_autoneg(struct atl1c_hw *hw);
-int atl1c_phy_power_saving(struct atl1c_hw *hw);
+int atl1c_phy_to_ps_link(struct atl1c_hw *hw);
+int atl1c_power_saving(struct atl1c_hw *hw, u32 wufc);
void atl1c_stop_phy_polling(struct atl1c_hw *hw);
void atl1c_start_phy_polling(struct atl1c_hw *hw, u16 clk_sel);
int atl1c_read_phy_core(struct atl1c_hw *hw, bool ext, u8 dev,
@@ -62,6 +63,16 @@ int atl1c_write_phy_ext(struct atl1c_hw *hw, u8 dev_addr,
int atl1c_read_phy_dbg(struct atl1c_hw *hw, u16 reg_addr, u16 *phy_data);
int atl1c_write_phy_dbg(struct atl1c_hw *hw, u16 reg_addr, u16 phy_data);

+/* hw-ids */
+#define PCI_DEVICE_ID_ATTANSIC_L2C 0x1062
+#define PCI_DEVICE_ID_ATTANSIC_L1C 0x1063
+#define PCI_DEVICE_ID_ATHEROS_L2C_B 0x2060 /* AR8152 v1.1 Fast 10/100 */
+#define PCI_DEVICE_ID_ATHEROS_L2C_B2 0x2062 /* AR8152 v2.0 Fast 10/100 */
+#define PCI_DEVICE_ID_ATHEROS_L1D 0x1073 /* AR8151 v1.0 Gigabit 1000 */
+#define PCI_DEVICE_ID_ATHEROS_L1D_2_0 0x1083 /* AR8151 v2.0 Gigabit 1000 */
+#define L2CB_V10 0xc0
+#define L2CB_V11 0xc1
+
/* register definition */
#define REG_DEVICE_CAP 0x5C
#define DEVICE_CAP_MAX_PAYLOAD_MASK 0x7
@@ -405,35 +416,37 @@ int atl1c_write_phy_dbg(struct atl1c_hw *hw, u16 reg_addr, u16 phy_data);

/* MAC Control Register */
#define REG_MAC_CTRL 0x1480
-#define MAC_CTRL_TX_EN 0x1
-#define MAC_CTRL_RX_EN 0x2
-#define MAC_CTRL_TX_FLOW 0x4
-#define MAC_CTRL_RX_FLOW 0x8
-#define MAC_CTRL_LOOPBACK 0x10
-#define MAC_CTRL_DUPLX 0x20
-#define MAC_CTRL_ADD_CRC 0x40
-#define MAC_CTRL_PAD 0x80
-#define MAC_CTRL_LENCHK 0x100
-#define MAC_CTRL_HUGE_EN 0x200
-#define MAC_CTRL_PRMLEN_SHIFT 10
-#define MAC_CTRL_PRMLEN_MASK 0xf
-#define MAC_CTRL_RMV_VLAN 0x4000
-#define MAC_CTRL_PROMIS_EN 0x8000
-#define MAC_CTRL_TX_PAUSE 0x10000
-#define MAC_CTRL_SCNT 0x20000
-#define MAC_CTRL_SRST_TX 0x40000
-#define MAC_CTRL_TX_SIMURST 0x80000
+#define MAC_CTRL_SPEED_MODE_SW BIT(30) /* 0:phy,1:sw */
+#define MAC_CTRL_HASH_ALG_CRC32 BIT(29) /* 1:legacy,0:lw_5b */
+#define MAC_CTRL_SINGLE_PAUSE_EN BIT(28)
+#define MAC_CTRL_DBG BIT(27)
+#define MAC_CTRL_BC_EN BIT(26)
+#define MAC_CTRL_MC_ALL_EN BIT(25)
+#define MAC_CTRL_RX_CHKSUM_EN BIT(24)
+#define MAC_CTRL_TX_HUGE BIT(23)
+#define MAC_CTRL_DBG_TX_BKPRESURE BIT(22)
+#define MAC_CTRL_SPEED_MASK 3UL
#define MAC_CTRL_SPEED_SHIFT 20
-#define MAC_CTRL_SPEED_MASK 0x3
-#define MAC_CTRL_DBG_TX_BKPRESURE 0x400000
-#define MAC_CTRL_TX_HUGE 0x800000
-#define MAC_CTRL_RX_CHKSUM_EN 0x1000000
-#define MAC_CTRL_MC_ALL_EN 0x2000000
-#define MAC_CTRL_BC_EN 0x4000000
-#define MAC_CTRL_DBG 0x8000000
-#define MAC_CTRL_SINGLE_PAUSE_EN 0x10000000
-#define MAC_CTRL_HASH_ALG_CRC32 0x20000000
-#define MAC_CTRL_SPEED_MODE_SW 0x40000000
+#define MAC_CTRL_SPEED_10_100 1
+#define MAC_CTRL_SPEED_1000 2
+#define MAC_CTRL_TX_SIMURST BIT(19)
+#define MAC_CTRL_SCNT BIT(17)
+#define MAC_CTRL_TX_PAUSE BIT(16)
+#define MAC_CTRL_PROMIS_EN BIT(15)
+#define MAC_CTRL_RMV_VLAN BIT(14)
+#define MAC_CTRL_PRMLEN_MASK 0xFUL
+#define MAC_CTRL_PRMLEN_SHIFT 10
+#define MAC_CTRL_HUGE_EN BIT(9)
+#define MAC_CTRL_LENCHK BIT(8)
+#define MAC_CTRL_PAD BIT(7)
+#define MAC_CTRL_ADD_CRC BIT(6)
+#define MAC_CTRL_DUPLX BIT(5)
+#define MAC_CTRL_LOOPBACK BIT(4)
+#define MAC_CTRL_RX_FLOW BIT(3)
+#define MAC_CTRL_TX_FLOW BIT(2)
+#define MAC_CTRL_RX_EN BIT(1)
+#define MAC_CTRL_TX_EN BIT(0)
+

/* MAC IPG/IFG Control Register */
#define REG_MAC_IPG_IFG 0x1484
diff --git a/drivers/net/ethernet/atheros/atl1c/atl1c_main.c b/drivers/net/ethernet/atheros/atl1c/atl1c_main.c
index 7f2e8eb..8c2f28c 100644
--- a/drivers/net/ethernet/atheros/atl1c/atl1c_main.c
+++ b/drivers/net/ethernet/atheros/atl1c/atl1c_main.c
@@ -24,14 +24,6 @@
#define ATL1C_DRV_VERSION "1.0.1.0-NAPI"
char atl1c_driver_name[] = "atl1c";
char atl1c_driver_version[] = ATL1C_DRV_VERSION;
-#define PCI_DEVICE_ID_ATTANSIC_L2C 0x1062
-#define PCI_DEVICE_ID_ATTANSIC_L1C 0x1063
-#define PCI_DEVICE_ID_ATHEROS_L2C_B 0x2060 /* AR8152 v1.1 Fast 10/100 */
-#define PCI_DEVICE_ID_ATHEROS_L2C_B2 0x2062 /* AR8152 v2.0 Fast 10/100 */
-#define PCI_DEVICE_ID_ATHEROS_L1D 0x1073 /* AR8151 v1.0 Gigabit 1000 */
-#define PCI_DEVICE_ID_ATHEROS_L1D_2_0 0x1083 /* AR8151 v2.0 Gigabit 1000 */
-#define L2CB_V10 0xc0
-#define L2CB_V11 0xc1

/*
* atl1c_pci_tbl - PCI Device ID Table
@@ -2306,12 +2298,7 @@ static int atl1c_suspend(struct device *dev)
struct net_device *netdev = pci_get_drvdata(pdev);
struct atl1c_adapter *adapter = netdev_priv(netdev);
struct atl1c_hw *hw = &adapter->hw;
- u32 mac_ctrl_data = 0;
- u32 master_ctrl_data = 0;
- u32 wol_ctrl_data = 0;
- u16 mii_intr_status_data = 0;
u32 wufc = adapter->wol;
- u32 phy_ctrl_data;

atl1c_disable_l0s_l1(hw);
if (netif_running(netdev)) {
@@ -2321,82 +2308,9 @@ static int atl1c_suspend(struct device *dev)
netif_device_detach(netdev);

if (wufc)
- if (atl1c_phy_power_saving(hw) != 0)
+ if (atl1c_phy_to_ps_link(hw) != 0)
dev_dbg(&pdev->dev, "phy power saving failed");
-
- AT_READ_REG(hw, REG_MASTER_CTRL, &master_ctrl_data);
- AT_READ_REG(hw, REG_MAC_CTRL, &mac_ctrl_data);
- AT_READ_REG(hw, REG_GPHY_CTRL, &phy_ctrl_data);
-
- master_ctrl_data &= ~MASTER_CTRL_CLK_SEL_DIS;
- mac_ctrl_data &= ~(MAC_CTRL_PRMLEN_MASK << MAC_CTRL_PRMLEN_SHIFT);
- mac_ctrl_data |= (((u32)adapter->hw.preamble_len &
- MAC_CTRL_PRMLEN_MASK) <<
- MAC_CTRL_PRMLEN_SHIFT);
- mac_ctrl_data &= ~(MAC_CTRL_SPEED_MASK << MAC_CTRL_SPEED_SHIFT);
- mac_ctrl_data &= ~MAC_CTRL_DUPLX;
- phy_ctrl_data &= ~(GPHY_CTRL_EXT_RESET | GPHY_CTRL_CLS);
- phy_ctrl_data |= GPHY_CTRL_SEL_ANA_RST | GPHY_CTRL_HIB_PULSE |
- GPHY_CTRL_HIB_EN;
-
- if (wufc) {
- mac_ctrl_data |= MAC_CTRL_RX_EN;
- phy_ctrl_data |= GPHY_CTRL_EXT_RESET;
- if (adapter->link_speed == SPEED_1000 ||
- adapter->link_speed == SPEED_0) {
- mac_ctrl_data |= atl1c_mac_speed_1000 <<
- MAC_CTRL_SPEED_SHIFT;
- mac_ctrl_data |= MAC_CTRL_DUPLX;
- } else
- mac_ctrl_data |= atl1c_mac_speed_10_100 <<
- MAC_CTRL_SPEED_SHIFT;
-
- if (adapter->link_duplex == DUPLEX_FULL)
- mac_ctrl_data |= MAC_CTRL_DUPLX;
-
- /* turn on magic packet wol */
- if (wufc & AT_WUFC_MAG) {
- wol_ctrl_data |= WOL_MAGIC_EN | WOL_MAGIC_PME_EN;
- if (hw->nic_type == athr_l2c_b &&
- hw->revision_id == L2CB_V11) {
- wol_ctrl_data |=
- WOL_PATTERN_EN | WOL_PATTERN_PME_EN;
- }
- }
- if (wufc & AT_WUFC_LNKC) {
- wol_ctrl_data |= WOL_LINK_CHG_EN | WOL_LINK_CHG_PME_EN;
- /* only link up can wake up */
- if (atl1c_write_phy_reg(hw, MII_IER, IER_LINK_UP) != 0) {
- dev_dbg(&pdev->dev, "%s: read write phy "
- "register failed.\n",
- atl1c_driver_name);
- }
- }
- /* clear phy interrupt */
- atl1c_read_phy_reg(hw, MII_ISR, &mii_intr_status_data);
- /* Config MAC Ctrl register */
- __atl1c_vlan_mode(netdev->features, &mac_ctrl_data);
-
- /* magic packet maybe Broadcast&multicast&Unicast frame */
- if (wufc & AT_WUFC_MAG)
- mac_ctrl_data |= MAC_CTRL_BC_EN;
-
- dev_dbg(&pdev->dev,
- "%s: suspend MAC=0x%x\n",
- atl1c_driver_name, mac_ctrl_data);
- } else {
- master_ctrl_data |= MASTER_CTRL_CLK_SEL_DIS;
- mac_ctrl_data |= atl1c_mac_speed_10_100 << MAC_CTRL_SPEED_SHIFT;
- mac_ctrl_data |= MAC_CTRL_DUPLX;
- phy_ctrl_data |= GPHY_CTRL_PHY_IDDQ | GPHY_CTRL_PWDOWN_HW;
- wol_ctrl_data = 0;
- hw->phy_configured = false; /* re-init PHY when resume */
- }
-
- AT_WRITE_REG(hw, REG_MASTER_CTRL, master_ctrl_data);
- AT_WRITE_REG(hw, REG_MAC_CTRL, mac_ctrl_data);
- AT_WRITE_REG(hw, REG_GPHY_CTRL, phy_ctrl_data);
- AT_WRITE_REG(hw, REG_WOL_CTRL, wol_ctrl_data);
+ atl1c_power_saving(hw, wufc);

return 0;
}
--
1.7.7


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