Some chips need to have internal clocks enabled (via PCI config)
before the PCI space is readable.
Signed-off-by: Stephen Hemminger <[EMAIL PROTECTED]>
---
drivers/net/sky2.c | 102
++++++++++++++++++++++++++++++++++++++---------------
drivers/net/sky2.h | 19 +++++++++
2 files changed, 92 insertions(+), 29 deletions(-)
--- a/drivers/net/sky2.c 2007-05-24 15:22:14.000000000 -0700
+++ b/drivers/net/sky2.c 2007-05-24 15:22:33.000000000 -0700
@@ -2524,10 +2524,6 @@ static int __devinit sky2_init(struct sk
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 */
@@ -3638,6 +3634,9 @@ static int __devinit sky2_probe(struct p
if (!hw->st_le)
goto err_out_iounmap;
+ /* On Yukon EC-U and EX need to force enabling all clocks */
+ pci_write_config_dword(pdev, PCI_DEV_REG3, 0);
+
err = sky2_init(hw);
if (err)
goto err_out_iounmap;
@@ -3822,8 +3821,7 @@ static int sky2_resume(struct pci_dev *p
pci_enable_wake(pdev, PCI_D0, 0);
/* Re-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);
+ pci_write_config_dword(pdev, PCI_DEV_REG3, 0);
