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path: root/drivers/net/sky2.c
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Diffstat (limited to 'drivers/net/sky2.c')
-rw-r--r--drivers/net/sky2.c18
1 files changed, 12 insertions, 6 deletions
diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c
index 612257172b9..0bd74fe5c33 100644
--- a/drivers/net/sky2.c
+++ b/drivers/net/sky2.c
@@ -217,13 +217,19 @@ static void sky2_power_on(struct sky2_hw *hw)
sky2_write8(hw, B2_Y2_CLK_GATE, 0);
if (hw->chip_id == CHIP_ID_YUKON_EC_U || hw->chip_id == CHIP_ID_YUKON_EX) {
- u32 reg1;
+ u32 reg;
- sky2_pci_write32(hw, PCI_DEV_REG3, 0);
- reg1 = sky2_pci_read32(hw, PCI_DEV_REG4);
- reg1 &= P_ASPM_CONTROL_MSK;
- sky2_pci_write32(hw, PCI_DEV_REG4, reg1);
- sky2_pci_write32(hw, PCI_DEV_REG5, 0);
+ reg = sky2_pci_read32(hw, PCI_DEV_REG4);
+ /* set all bits to 0 except bits 15..12 and 8 */
+ reg &= P_ASPM_CONTROL_MSK;
+ sky2_pci_write32(hw, PCI_DEV_REG4, reg);
+
+ reg = sky2_pci_read32(hw, PCI_DEV_REG5);
+ /* set all bits to 0 except bits 28 & 27 */
+ reg &= P_CTL_TIM_VMAIN_AV_MSK;
+ sky2_pci_write32(hw, PCI_DEV_REG5, reg);
+
+ sky2_pci_write32(hw, PCI_CFG_REG_1, 0);
}
}