Update PCI bus driver to support non-standard PCI to PCI bridge I/O window alignment, such as 2K/1K/512 byte. Feature PCD PcdPciBridgeIoAlignmentProbe is introduced to turn on/off this feature.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9598 6f19259b-4bc3-4df7-8a09-765794883524
2009-12-24 11:58:04 +00:00
parent 423401f9ea
commit 1ef2678316
7 changed files with 49 additions and 6 deletions
--- a/MdeModulePkg/Bus/Pci/PciBusDxe/PciEnumerator.c
+++ b/MdeModulePkg/Bus/Pci/PciBusDxe/PciEnumerator.c
@@ -1428,7 +1428,7 @@ PciBridgeResourceAllocator (
  IoBridge = CreateResourceNode (
               Bridge,
               0,
-               0xFFF,
+               Bridge->BridgeIoAlignment,
               0,
               PciBarTypeIo16,
               PciResUsageTypical