diff options
Diffstat (limited to 'drivers/pci/quirks.c')
-rw-r--r-- | drivers/pci/quirks.c | 14 |
1 files changed, 4 insertions, 10 deletions
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 75bd6a8648f6..f75ade6f0602 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c | |||
@@ -587,10 +587,7 @@ DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, quirk_via_v | |||
587 | */ | 587 | */ |
588 | static void __devinit quirk_amd_ioapic(struct pci_dev *dev) | 588 | static void __devinit quirk_amd_ioapic(struct pci_dev *dev) |
589 | { | 589 | { |
590 | u8 rev; | 590 | if (dev->revision >= 0x02) { |
591 | |||
592 | pci_read_config_byte(dev, PCI_REVISION_ID, &rev); | ||
593 | if (rev >= 0x02) { | ||
594 | printk(KERN_WARNING "I/O APIC: AMD Erratum #22 may be present. In the event of instability try\n"); | 591 | printk(KERN_WARNING "I/O APIC: AMD Erratum #22 may be present. In the event of instability try\n"); |
595 | printk(KERN_WARNING " : booting with the \"noapic\" option.\n"); | 592 | printk(KERN_WARNING " : booting with the \"noapic\" option.\n"); |
596 | } | 593 | } |
@@ -610,13 +607,12 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SI, PCI_ANY_ID, quirk_ioapic_rmw ); | |||
610 | #define AMD8131_NIOAMODE_BIT 0 | 607 | #define AMD8131_NIOAMODE_BIT 0 |
611 | static void quirk_amd_8131_ioapic(struct pci_dev *dev) | 608 | static void quirk_amd_8131_ioapic(struct pci_dev *dev) |
612 | { | 609 | { |
613 | unsigned char revid, tmp; | 610 | unsigned char tmp; |
614 | 611 | ||
615 | if (nr_ioapics == 0) | 612 | if (nr_ioapics == 0) |
616 | return; | 613 | return; |
617 | 614 | ||
618 | pci_read_config_byte(dev, PCI_REVISION_ID, &revid); | 615 | if (dev->revision == AMD8131_revA0 || dev->revision == AMD8131_revB0) { |
619 | if (revid == AMD8131_revA0 || revid == AMD8131_revB0) { | ||
620 | printk(KERN_INFO "Fixing up AMD8131 IOAPIC mode\n"); | 616 | printk(KERN_INFO "Fixing up AMD8131 IOAPIC mode\n"); |
621 | pci_read_config_byte( dev, AMD8131_MISC, &tmp); | 617 | pci_read_config_byte( dev, AMD8131_MISC, &tmp); |
622 | tmp &= ~(1 << AMD8131_NIOAMODE_BIT); | 618 | tmp &= ~(1 << AMD8131_NIOAMODE_BIT); |
@@ -859,10 +855,8 @@ DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_PCI_MASTER, qu | |||
859 | static void quirk_disable_pxb(struct pci_dev *pdev) | 855 | static void quirk_disable_pxb(struct pci_dev *pdev) |
860 | { | 856 | { |
861 | u16 config; | 857 | u16 config; |
862 | u8 rev; | ||
863 | 858 | ||
864 | pci_read_config_byte(pdev, PCI_REVISION_ID, &rev); | 859 | if (pdev->revision != 0x04) /* Only C0 requires this */ |
865 | if (rev != 0x04) /* Only C0 requires this */ | ||
866 | return; | 860 | return; |
867 | pci_read_config_word(pdev, 0x40, &config); | 861 | pci_read_config_word(pdev, 0x40, &config); |
868 | if (config & (1<<6)) { | 862 | if (config & (1<<6)) { |