atl1c: add module parameter for l1c_wait_until_idle

l1c_wait_until_idle is called for serval modules (TXQ/RXQ/TXMAC/RXMAC).
specific moudle have specific idle/busy status in reg REG_IDLE_STATUS.
the previous code return wrongly if all modules are in idle status,
regardless the 'stop' action is applied on individual module.
Refine the reg REG_IDLE_STATUS definition as well.

Signed-off-by: xiong <xiong@qca.qualcomm.com>
Tested-by: Liu David <dwliu@qca.qualcomm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/atheros/atl1c/atl1c_hw.h b/drivers/net/ethernet/atheros/atl1c/atl1c_hw.h
index a37c82f..c1aa3ba 100644 (file)
--- a/drivers/net/ethernet/atheros/atl1c/atl1c_hw.h
+++ b/drivers/net/ethernet/atheros/atl1c/atl1c_hw.h
@@ -227,17 +227,25 @@ int atl1c_phy_power_saving(struct atl1c_hw *hw);
                GPHY_CTRL_HIB_PULSE     |\
                GPHY_CTRL_PWDOWN_HW     |\
                GPHY_CTRL_PHY_IDDQ)
+
 /* Block IDLE Status Register */
-#define REG_IDLE_STATUS                0x1410
-#define IDLE_STATUS_MASK               0x00FF
-#define IDLE_STATUS_RXMAC_NO_IDLE              0x1
-#define IDLE_STATUS_TXMAC_NO_IDLE              0x2
-#define IDLE_STATUS_RXQ_NO_IDLE                0x4
-#define IDLE_STATUS_TXQ_NO_IDLE                0x8
-#define IDLE_STATUS_DMAR_NO_IDLE               0x10
-#define IDLE_STATUS_DMAW_NO_IDLE               0x20
-#define IDLE_STATUS_SMB_NO_IDLE                0x40
-#define IDLE_STATUS_CMB_NO_IDLE                0x80
+#define REG_IDLE_STATUS                        0x1410
+#define IDLE_STATUS_SFORCE_MASK                0xFUL
+#define IDLE_STATUS_SFORCE_SHIFT       14
+#define IDLE_STATUS_CALIB_DONE         BIT(13)
+#define IDLE_STATUS_CALIB_RES_MASK     0x1FUL
+#define IDLE_STATUS_CALIB_RES_SHIFT    8
+#define IDLE_STATUS_CALIBERR_MASK      0xFUL
+#define IDLE_STATUS_CALIBERR_SHIFT     4
+#define IDLE_STATUS_TXQ_BUSY           BIT(3)
+#define IDLE_STATUS_RXQ_BUSY           BIT(2)
+#define IDLE_STATUS_TXMAC_BUSY         BIT(1)
+#define IDLE_STATUS_RXMAC_BUSY         BIT(0)
+#define IDLE_STATUS_MASK               (\
+       IDLE_STATUS_TXQ_BUSY            |\
+       IDLE_STATUS_RXQ_BUSY            |\
+       IDLE_STATUS_TXMAC_BUSY          |\
+       IDLE_STATUS_RXMAC_BUSY)
 
 /* MDIO Control Register */
 #define REG_MDIO_CTRL                  0x1414

diff --git a/drivers/net/ethernet/atheros/atl1c/atl1c_main.c b/drivers/net/ethernet/atheros/atl1c/atl1c_main.c
index 2e1c9f3..d2f89f0 100644 (file)
--- a/drivers/net/ethernet/atheros/atl1c/atl1c_main.c
+++ b/drivers/net/ethernet/atheros/atl1c/atl1c_main.c
@@ -185,14 +185,14 @@ static inline void atl1c_irq_reset(struct atl1c_adapter *adapter)
  * atl1c_wait_until_idle - wait up to AT_HW_MAX_IDLE_DELAY reads
  * of the idle status register until the device is actually idle
  */
-static u32 atl1c_wait_until_idle(struct atl1c_hw *hw)
+static u32 atl1c_wait_until_idle(struct atl1c_hw *hw, u32 modu_ctrl)
 {
        int timeout;
        u32 data;
 
        for (timeout = 0; timeout < AT_HW_MAX_IDLE_DELAY; timeout++) {
                AT_READ_REG(hw, REG_IDLE_STATUS, &data);
-               if ((data & IDLE_STATUS_MASK) == 0)
+               if ((data & modu_ctrl) == 0)
                        return 0;
                msleep(1);
        }
@@ -1119,13 +1119,14 @@ static int atl1c_stop_mac(struct atl1c_hw *hw)
        data &= ~TXQ_CTRL_EN;
        AT_WRITE_REG(hw, REG_TXQ_CTRL, data);
 
-       atl1c_wait_until_idle(hw);
+       atl1c_wait_until_idle(hw, IDLE_STATUS_RXQ_BUSY | IDLE_STATUS_TXQ_BUSY);
 
        AT_READ_REG(hw, REG_MAC_CTRL, &data);
        data &= ~(MAC_CTRL_TX_EN | MAC_CTRL_RX_EN);
        AT_WRITE_REG(hw, REG_MAC_CTRL, data);
 
-       return (int)atl1c_wait_until_idle(hw);
+       return (int)atl1c_wait_until_idle(hw,
+               IDLE_STATUS_TXMAC_BUSY | IDLE_STATUS_RXMAC_BUSY);
 }
 
 static void atl1c_enable_rx_ctrl(struct atl1c_hw *hw)
@@ -1176,7 +1177,7 @@ static int atl1c_reset_mac(struct atl1c_hw *hw)
        msleep(10);
        /* Wait at least 10ms for All module to be Idle */
 
-       if (atl1c_wait_until_idle(hw)) {
+       if (atl1c_wait_until_idle(hw, IDLE_STATUS_MASK)) {
                dev_err(&pdev->dev,
                        "MAC state machine can't be idle since"
                        " disabled for 10ms second\n");