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
This commit is contained in:
rsun3
2009-12-24 11:58:04 +00:00
parent 423401f9ea
commit 1ef2678316
7 changed files with 49 additions and 6 deletions

View File

@@ -803,14 +803,12 @@ CreateResourceMap (
//
// If the device has children, create a bridge resource node for this PPB
// Note: For PPB, memory aperture is aligned with 1MB and IO aperture
// is aligned with 4KB
// This device is typically a bridge device like PPB and P2C
// Note: 0x1000 aligned
// is aligned with 4KB (smaller alignments may be supported).
//
IoBridge = CreateResourceNode (
Temp,
0,
0xFFF,
Temp->BridgeIoAlignment,
PPB_IO_RANGE,
PciBarTypeIo16,
PciResUsageTypical