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path: root/drivers/pci/quirks.c
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Diffstat (limited to 'drivers/pci/quirks.c')
-rw-r--r--drivers/pci/quirks.c38
1 files changed, 35 insertions, 3 deletions
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 6099facecd79..245d2cdb4765 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -670,6 +670,25 @@ static void __devinit quirk_vt8235_acpi(struct pci_dev *dev)
670} 670}
671DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8235, quirk_vt8235_acpi); 671DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8235, quirk_vt8235_acpi);
672 672
673/*
674 * TI XIO2000a PCIe-PCI Bridge erroneously reports it supports fast back-to-back:
675 * Disable fast back-to-back on the secondary bus segment
676 */
677static void __devinit quirk_xio2000a(struct pci_dev *dev)
678{
679 struct pci_dev *pdev;
680 u16 command;
681
682 dev_warn(&dev->dev, "TI XIO2000a quirk detected; "
683 "secondary bus fast back-to-back transfers disabled\n");
684 list_for_each_entry(pdev, &dev->subordinate->devices, bus_list) {
685 pci_read_config_word(pdev, PCI_COMMAND, &command);
686 if (command & PCI_COMMAND_FAST_BACK)
687 pci_write_config_word(pdev, PCI_COMMAND, command & ~PCI_COMMAND_FAST_BACK);
688 }
689}
690DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_XIO2000A,
691 quirk_xio2000a);
673 692
674#ifdef CONFIG_X86_IO_APIC 693#ifdef CONFIG_X86_IO_APIC
675 694
@@ -990,7 +1009,7 @@ DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82454NX,
990 1009
991static void __devinit quirk_amd_ide_mode(struct pci_dev *pdev) 1010static void __devinit quirk_amd_ide_mode(struct pci_dev *pdev)
992{ 1011{
993 /* set SBX00 SATA in IDE mode to AHCI mode */ 1012 /* set SBX00/Hudson-2 SATA in IDE mode to AHCI mode */
994 u8 tmp; 1013 u8 tmp;
995 1014
996 pci_read_config_byte(pdev, PCI_CLASS_DEVICE, &tmp); 1015 pci_read_config_byte(pdev, PCI_CLASS_DEVICE, &tmp);
@@ -1009,8 +1028,8 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP600_SATA, quirk
1009DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP600_SATA, quirk_amd_ide_mode); 1028DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP600_SATA, quirk_amd_ide_mode);
1010DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP700_SATA, quirk_amd_ide_mode); 1029DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP700_SATA, quirk_amd_ide_mode);
1011DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP700_SATA, quirk_amd_ide_mode); 1030DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP700_SATA, quirk_amd_ide_mode);
1012DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_SB900_SATA_IDE, quirk_amd_ide_mode); 1031DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_HUDSON2_SATA_IDE, quirk_amd_ide_mode);
1013DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_SB900_SATA_IDE, quirk_amd_ide_mode); 1032DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_HUDSON2_SATA_IDE, quirk_amd_ide_mode);
1014 1033
1015/* 1034/*
1016 * Serverworks CSB5 IDE does not fully support native mode 1035 * Serverworks CSB5 IDE does not fully support native mode
@@ -2572,6 +2591,19 @@ void pci_fixup_device(enum pci_fixup_pass pass, struct pci_dev *dev)
2572 } 2591 }
2573 pci_do_fixups(dev, start, end); 2592 pci_do_fixups(dev, start, end);
2574} 2593}
2594
2595static int __init pci_apply_final_quirks(void)
2596{
2597 struct pci_dev *dev = NULL;
2598
2599 while ((dev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, dev)) != NULL) {
2600 pci_fixup_device(pci_fixup_final, dev);
2601 }
2602
2603 return 0;
2604}
2605
2606fs_initcall_sync(pci_apply_final_quirks);
2575#else 2607#else
2576void pci_fixup_device(enum pci_fixup_pass pass, struct pci_dev *dev) {} 2608void pci_fixup_device(enum pci_fixup_pass pass, struct pci_dev *dev) {}
2577#endif 2609#endif