From b23457737f073eaf5a7b797c2a195f83633e003d Mon Sep 17 00:00:00 2001 From: Stephen Hemminger Date: Tue, 21 Aug 2007 14:34:02 -0700 Subject: [PATCH] sky2: clear PCI power control reg at startup Make sure PCI register for PHY power gets cleared on boot, and make sure to avoid any PCI posting problems. Signed-off-by: Stephen Hemminger Signed-off-by: Jeff Garzik --- drivers/net/sky2.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c index 757592436390..33ba3486389e 100644 --- a/drivers/net/sky2.c +++ b/drivers/net/sky2.c @@ -219,9 +219,12 @@ static void sky2_power_on(struct sky2_hw *hw) else sky2_write8(hw, B2_Y2_CLK_GATE, 0); - if (hw->chip_id == CHIP_ID_YUKON_EC_U || hw->chip_id == CHIP_ID_YUKON_EX) { + if (hw->chip_id == CHIP_ID_YUKON_EC_U || + hw->chip_id == CHIP_ID_YUKON_EX) { u32 reg; + sky2_pci_write32(hw, PCI_DEV_REG3, 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; @@ -238,6 +241,8 @@ static void sky2_power_on(struct sky2_hw *hw) reg = sky2_read32(hw, B2_GP_IO); reg |= GLB_GPIO_STAT_RACE_DIS; sky2_write32(hw, B2_GP_IO, reg); + + sky2_read32(hw, B2_GP_IO); } } -- 2.20.1