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Commit adba9e23 authored by Stephen Hemminger's avatar Stephen Hemminger Committed by Jeff Garzik
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[PATCH] skge: clear PCI PHY COMA mode on boot 



When skge is booted up, the PHY may be stuck in power down state
by the previous OS. So we may need to turn it on.

Signed-off-by: default avatarStephen Hemminger <shemminger@osdl.org>
Signed-off-by: default avatarJeff Garzik <jgarzik@pobox.com>
parent 3133c5e8

drivers/net/skge.c

+10 −0
Original line number Diff line number Diff line
@@ -2893,6 +2893,7 @@ static const char *skge_board_name(const struct skge_hw *hw) 
 */

static int skge_reset(struct skge_hw *hw)

{

	u32 reg;

	u16 ctst;

	u8 t8, mac_cfg, pmd_type, phy_type;

	int i;
@@ -2971,6 +2972,7 @@ static int skge_reset(struct skge_hw *hw) 
		/* switch power to VCC (WA for VAUX problem) */

		skge_write8(hw, B0_POWER_CTRL,

			    PC_VAUX_ENA | PC_VCC_ENA | PC_VAUX_OFF | PC_VCC_ON);



		/* avoid boards with stuck Hardware error bits */

		if ((skge_read32(hw, B0_ISRC) & IS_HW_ERR) &&

		    (skge_read32(hw, B0_HWE_ISRC) & IS_IRQ_SENSOR)) {
@@ -2978,6 +2980,14 @@ static int skge_reset(struct skge_hw *hw) 
			hw->intr_mask &= ~IS_HW_ERR;

		}



		/* Clear PHY COMA */

		skge_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON);

		pci_read_config_dword(hw->pdev, PCI_DEV_REG1, &reg);

		reg &= ~PCI_PHY_COMA;

		pci_write_config_dword(hw->pdev, PCI_DEV_REG1, reg);

		skge_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF);





		for (i = 0; i < hw->ports; i++) {

			skge_write16(hw, SK_REG(i, GMAC_LINK_CTRL), GMLC_RST_SET);

			skge_write16(hw, SK_REG(i, GMAC_LINK_CTRL), GMLC_RST_CLR);

drivers/net/skge.h

+2 −0
Original line number Diff line number Diff line
@@ -6,6 +6,8 @@ 


/* PCI config registers */

#define PCI_DEV_REG1	0x40

#define  PCI_PHY_COMA	0x8000000

#define  PCI_VIO	0x2000000

#define PCI_DEV_REG2	0x44

#define  PCI_REV_DESC	 0x4