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authorStephen Hemminger <shemminger@linux-foundation.org>2007-06-04 20:23:24 -0400
committerJeff Garzik <jeff@garzik.org>2007-07-08 22:16:42 -0400
commit451af33552286b426940a32126bd3ece243223a3 (patch)
tree9e953434b8e79a0dd0231abe19326de8939a78cb /drivers/net/sky2.c
parentf449c7c10698e49e6c654452f852b1b719273d8a (diff)
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>
Diffstat (limited to 'drivers/net/sky2.c')
-rw-r--r--drivers/net/sky2.c7
1 files changed, 3 insertions, 4 deletions
diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c
index 5b3a866a0b1c..fbe39d929277 100644
--- a/drivers/net/sky2.c
+++ b/drivers/net/sky2.c
@@ -2519,6 +2519,9 @@ static int __devinit sky2_init(struct sky2_hw *hw)
2519{ 2519{
2520 u8 t8; 2520 u8 t8;
2521 2521
2522 /* Enable all clocks */
2523 sky2_pci_write32(hw, PCI_DEV_REG3, 0);
2524
2522 sky2_write8(hw, B0_CTST, CS_RST_CLR); 2525 sky2_write8(hw, B0_CTST, CS_RST_CLR);
2523 2526
2524 hw->chip_id = sky2_read8(hw, B2_CHIP_ID); 2527 hw->chip_id = sky2_read8(hw, B2_CHIP_ID);
@@ -2532,10 +2535,6 @@ static int __devinit sky2_init(struct sky2_hw *hw)
2532 dev_warn(&hw->pdev->dev, "this driver not yet tested on this chip type\n" 2535 dev_warn(&hw->pdev->dev, "this driver not yet tested on this chip type\n"
2533 "Please report success or failure to <netdev@vger.kernel.org>\n"); 2536 "Please report success or failure to <netdev@vger.kernel.org>\n");
2534 2537
2535 /* Make sure and enable all clocks */
2536 if (hw->chip_id == CHIP_ID_YUKON_EX || hw->chip_id == CHIP_ID_YUKON_EC_U)
2537 sky2_pci_write32(hw, PCI_DEV_REG3, 0);
2538
2539 hw->chip_rev = (sky2_read8(hw, B2_MAC_CFG) & CFG_CHIP_R_MSK) >> 4; 2538 hw->chip_rev = (sky2_read8(hw, B2_MAC_CFG) & CFG_CHIP_R_MSK) >> 4;
2540 2539
2541 /* This rev is really old, and requires untested workarounds */ 2540 /* This rev is really old, and requires untested workarounds */