sky2: leave PCI config space writeable

Since power management is done by PCI subsystem as well as driver,
don't toggle the bit that disables PCI register writes.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Acked-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c
index 9431f64..1c01b96 100644 (file)
--- a/drivers/net/sky2.c
+++ b/drivers/net/sky2.c
@@ -644,7 +644,6 @@ static void sky2_phy_power_up(struct sky2_hw *hw, unsigned port)
 {
        u32 reg1;
 
-       sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON);
        reg1 = sky2_pci_read32(hw, PCI_DEV_REG1);
        reg1 &= ~phy_power[port];
 
@@ -652,7 +651,6 @@ static void sky2_phy_power_up(struct sky2_hw *hw, unsigned port)
                reg1 |= coma_mode[port];
 
        sky2_pci_write32(hw, PCI_DEV_REG1, reg1);
-       sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF);
        sky2_pci_read32(hw, PCI_DEV_REG1);
 
        if (hw->chip_id == CHIP_ID_YUKON_FE)
@@ -709,11 +707,9 @@ static void sky2_phy_power_down(struct sky2_hw *hw, unsigned port)
                gm_phy_write(hw, port, PHY_MARV_CTRL, PHY_CT_PDOWN);
        }
 
-       sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON);
        reg1 = sky2_pci_read32(hw, PCI_DEV_REG1);
        reg1 |= phy_power[port];                /* set PHY to PowerDown/COMA Mode */
        sky2_pci_write32(hw, PCI_DEV_REG1, reg1);
-       sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF);
 }
 
 /* Force a renegotiation */
@@ -2152,9 +2148,7 @@ static void sky2_qlink_intr(struct sky2_hw *hw)
 
        /* reset PHY Link Detect */
        phy = sky2_pci_read16(hw, PSM_CONFIG_REG4);
-       sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON);
        sky2_pci_write16(hw, PSM_CONFIG_REG4, phy | 1);
-       sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF);
 
        sky2_link_up(sky2);
 }
@@ -2645,7 +2639,6 @@ static void sky2_hw_intr(struct sky2_hw *hw)
        if (status & (Y2_IS_MST_ERR | Y2_IS_IRQ_STAT)) {
                u16 pci_err;
 
-               sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON);
                pci_err = sky2_pci_read16(hw, PCI_STATUS);
                if (net_ratelimit())
                        dev_err(&pdev->dev, "PCI hardware error (0x%x)\n",
@@ -2653,14 +2646,12 @@ static void sky2_hw_intr(struct sky2_hw *hw)
 
                sky2_pci_write16(hw, PCI_STATUS,
                                      pci_err | PCI_STATUS_ERROR_BITS);
-               sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF);
        }
 
        if (status & Y2_IS_PCI_EXP) {
                /* PCI-Express uncorrectable Error occurred */
                u32 err;
 
-               sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON);
                err = sky2_read32(hw, Y2_CFG_AER + PCI_ERR_UNCOR_STATUS);
                sky2_write32(hw, Y2_CFG_AER + PCI_ERR_UNCOR_STATUS,
                             0xfffffffful);
@@ -2668,7 +2659,6 @@ static void sky2_hw_intr(struct sky2_hw *hw)
                        dev_err(&pdev->dev, "PCI Express error (0x%x)\n", err);
 
                sky2_read32(hw, Y2_CFG_AER + PCI_ERR_UNCOR_STATUS);
-               sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF);
        }
 
        if (status & Y2_HWE_L1_MASK)
@@ -3047,7 +3037,6 @@ static void sky2_reset(struct sky2_hw *hw)
        }
 
        sky2_power_on(hw);
-       sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF);
 
        for (i = 0; i < hw->ports; i++) {
                sky2_write8(hw, SK_REG(i, GMAC_LINK_CTRL), GMLC_RST_SET);
@@ -3084,7 +3073,6 @@ static void sky2_reset(struct sky2_hw *hw)
                reg <<= PSM_CONFIG_REG4_TIMER_PHY_LINK_DETECT_BASE;
 
                /* reset PHY Link Detect */
-               sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON);
                sky2_pci_write16(hw, PSM_CONFIG_REG4,
                                 reg | PSM_CONFIG_REG4_RST_PHY_LINK_DETECT);
                sky2_pci_write16(hw, PSM_CONFIG_REG4, reg);
@@ -3102,7 +3090,6 @@ static void sky2_reset(struct sky2_hw *hw)
                        /* restore the PCIe Link Control register */
                        sky2_pci_write16(hw, cap + PCI_EXP_LNKCTL, reg);
                }
-               sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF);
 
                /* re-enable PEX PM in PEX PHY debug reg. 8 (clear bit 12) */
                sky2_write32(hw, Y2_PEX_PHY_DATA, PEX_DB_ACCESS | (0x08UL << 16));