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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-10-12 23:38:34 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-10-12 23:38:34 +0200 |
| commit | 2caa731819a633bec5a56736e64c562b7e193666 (patch) | |
| tree | e93f5c50c33c7cf5a9cc3ea29dd1d868b4f14d5c /drivers/pci/quirks.c | |
| parent | Merge master.kernel.org:/home/rmk/linux-2.6-arm (diff) | |
| parent | PCI: Prevent AER driver from being loaded on non-root port PCIE devices (diff) | |
| download | linux-2caa731819a633bec5a56736e64c562b7e193666.tar.xz linux-2caa731819a633bec5a56736e64c562b7e193666.zip | |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6:
PCI: Prevent AER driver from being loaded on non-root port PCIE devices
PCI: get larger bridge ranges when space is available
PCI: pci.c: fix kernel-doc notation
PCI quirk: TI XIO200a erroneously reports support for fast b2b transfers
PCI PM: Read device power state from register after updating it
PCI: remove pci_assign_resource_fixed()
PCI: PCIe portdrv: remove "-driver" from driver name
Diffstat (limited to 'drivers/pci/quirks.c')
| -rw-r--r-- | drivers/pci/quirks.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 6099facecd79..efa6534a6593 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) } DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8235, quirk_vt8235_acpi); +/* + * TI XIO2000a PCIe-PCI Bridge erroneously reports it supports fast back-to-back: + * Disable fast back-to-back on the secondary bus segment + */ +static void __devinit quirk_xio2000a(struct pci_dev *dev) +{ + struct pci_dev *pdev; + u16 command; + + dev_warn(&dev->dev, "TI XIO2000a quirk detected; " + "secondary bus fast back-to-back transfers disabled\n"); + list_for_each_entry(pdev, &dev->subordinate->devices, bus_list) { + pci_read_config_word(pdev, PCI_COMMAND, &command); + if (command & PCI_COMMAND_FAST_BACK) + pci_write_config_word(pdev, PCI_COMMAND, command & ~PCI_COMMAND_FAST_BACK); + } +} +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_XIO2000A, + quirk_xio2000a); #ifdef CONFIG_X86_IO_APIC |