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sky2: set VPD size

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Read configuration register during probe and use it to size the
available VPD. Move existing code using same register slightly
earlier in probe handling.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Stephen Hemminger 2009-02-03 11:27:30 +00:00 committed by David S. Miller
parent e4c2abe29e
commit 3834507d0c
1 changed files with 29 additions and 12 deletions
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41
drivers/net/sky2.c
View file

@ -4356,6 +4356,7 @@ static int __devinit sky2_probe(struct pci_dev *pdev,
struct net_device *dev;
struct sky2_hw *hw;
int err, using_dac = 0, wol_default;
u32 reg;
char buf1[16];
err = pci_enable_device(pdev);
@ -4389,6 +4390,34 @@ static int __devinit sky2_probe(struct pci_dev *pdev,
}
}
/* Get configuration information
* Note: only regular PCI config access once to test for HW issues
* other PCI access through shared memory for speed and to
* avoid MMCONFIG problems.
*/
err = pci_read_config_dword(pdev, PCI_DEV_REG2, &reg);
if (err) {
dev_err(&pdev->dev, "PCI read config failed\n");
goto err_out_free_regions;
}
/* size of available VPD, only impact sysfs */
err = pci_vpd_truncate(pdev, 1ul << (((reg & PCI_VPD_ROM_SZ) >> 14) + 8));
if (err)
dev_warn(&pdev->dev, "Can't set VPD size\n");
#ifdef __BIG_ENDIAN
/* The sk98lin vendor driver uses hardware byte swapping but
* this driver uses software swapping.
*/
reg &= ~PCI_REV_DESC;
err = pci_write_config_dword(pdev,PCI_DEV_REG2, reg);
if (err) {
dev_err(&pdev->dev, "PCI write config failed\n");
goto err_out_free_regions;
}
#endif
wol_default = device_may_wakeup(&pdev->dev) ? WAKE_MAGIC : 0;
err = -ENOMEM;
@ -4406,18 +4435,6 @@ static int __devinit sky2_probe(struct pci_dev *pdev,
goto err_out_free_hw;
}
#ifdef __BIG_ENDIAN
/* The sk98lin vendor driver uses hardware byte swapping but
* this driver uses software swapping.
*/
{
u32 reg;
reg = sky2_pci_read32(hw, PCI_DEV_REG2);
reg &= ~PCI_REV_DESC;
sky2_pci_write32(hw, PCI_DEV_REG2, reg);
}
#endif
/* ring for status responses */
hw->st_le = pci_alloc_consistent(pdev, STATUS_LE_BYTES, &hw->st_dma);
if (!hw->st_le)