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SubjectVIA 82C686B SouthBridge fixup in linux/drivers/pci/quirks.c
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Hi, I am not subscribed to the list.  Please CC me on replies.

The VIA686B SouthBridge bug workaround is not activated on motherboards
which have a VIA 82C686B that needs fixing, but not a VIA NorthBridge. For
example, my Asus A7M266 has an AMD 761 NorthBridge, and the table at the end
of linux/drivers/pci/quirks.c thus does not attempt to apply the fix.
Someone suggested a fix against 2.4.4 in this thread, however it has not all
been fixed on 2.4.5 nor 2.4.5-ac22 (current, I believe).

Below is a patch to the __initdata table which causes the fix to be applied
based on detection of the buggy SouthBridge, and *not* the NorthBridge which
is commonly used with it. This is the correct behavior, and was suggested
by someone during the thread I reference, however this aspect of the fix was
overlooked.

http://mailman.real-time.com/pipermail/linux-kernel/Week-of-Mon-20010430/032
013.html

---
Jeff S Wheeler jsw@five-elements.com
Software Development Five Elements, Inc


--- linux-2.4.5/drivers/pci/quirks.c.orig Fri Jun 29 20:24:09 2001
+++ linux-2.4.5/drivers/pci/quirks.c Fri Jun 29 20:58:14 2001
@@ -358,7 +358,7 @@
{ PCI_FIXUP_FINAL, PCI_VENDOR_ID_INTEL,
PCI_DEVICE_ID_INTEL_82443BX_2, quirk_natoma },
{ PCI_FIXUP_FINAL, PCI_VENDOR_ID_SI,
PCI_DEVICE_ID_SI_5597, quirk_nopcipci },
{ PCI_FIXUP_FINAL, PCI_VENDOR_ID_SI,
PCI_DEVICE_ID_SI_496, quirk_nopcipci },
- { PCI_FIXUP_FINAL, PCI_VENDOR_ID_VIA,
PCI_DEVICE_ID_VIA_8363_0, quirk_vialatency },
+ { PCI_FIXUP_FINAL, PCI_VENDOR_ID_VIA,
PCI_DEVICE_ID_VIA_82C686, quirk_vialatency },
{ PCI_FIXUP_FINAL, PCI_VENDOR_ID_VIA,
PCI_DEVICE_ID_VIA_82C597_0, quirk_viaetbf },
{ PCI_FIXUP_HEADER, PCI_VENDOR_ID_VIA,
PCI_DEVICE_ID_VIA_82C597_0, quirk_vt82c598_id },
{ PCI_FIXUP_HEADER, PCI_VENDOR_ID_VIA,
PCI_DEVICE_ID_VIA_82C586_3, quirk_vt82c586_acpi },
-
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