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sky2: enable clocks before probe 

Catch-22: On Yukon EX (88E8071) need to have internal clocks enabled
before reading chip id. It is harmless on other chips.

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Stephen Hemminger 2007-06-04 17:23:24 -07:00 committed by Jeff Garzik
parent f449c7c106
commit 451af33552
1 changed files with 3 additions and 4 deletions
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7
drivers/net/sky2.c
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@ -2519,6 +2519,9 @@ static int __devinit sky2_init(struct sky2_hw *hw)
{
u8 t8;
/* Enable all clocks */
sky2_pci_write32(hw, PCI_DEV_REG3, 0);
sky2_write8(hw, B0_CTST, CS_RST_CLR);
hw->chip_id = sky2_read8(hw, B2_CHIP_ID);
@ -2532,10 +2535,6 @@ static int __devinit sky2_init(struct sky2_hw *hw)
dev_warn(&hw->pdev->dev, "this driver not yet tested on this chip type\n"
"Please report success or failure to <netdev@vger.kernel.org>\n");
/* Make sure and enable all clocks */
if (hw->chip_id == CHIP_ID_YUKON_EX || hw->chip_id == CHIP_ID_YUKON_EC_U)
sky2_pci_write32(hw, PCI_DEV_REG3, 0);
hw->chip_rev = (sky2_read8(hw, B2_MAC_CFG) & CFG_CHIP_R_MSK) >> 4;
/* This rev is really old, and requires untested workarounds */