[coreboot-gerrit] Change in coreboot[master]: [TESTME]biostar/am1ml: fix the VGA-related PCI resource allocation pr...

[Mike Banon (Code Review)]

Mike Banon has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/38218 )

Change subject: [TESTME]biostar/am1ml: fix the VGA-related PCI resource allocation problems
......................................................................

[TESTME]biostar/am1ml: fix the VGA-related PCI resource allocation problems

This workaround helps to avoid the PCI resource allocation problems which happen
if a discrete VGA adapter (i.e. AMD HD6670) has been plugged in to AM1ML board.
It does not bring any downsides if there is no discrete VGA adapter.

Signed-off-by: Mike Banon 
Change-Id: Ia74750395e725a2522b7b55efb79084a073c1447
---
M src/mainboard/biostar/am1ml/OemCustomize.c
1 file changed, 2 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/18/38218/1

diff --git a/src/mainboard/biostar/am1ml/OemCustomize.c b/src/mainboard/biostar/am1ml/OemCustomize.c
index 2f7666e..212a538 100644
--- a/src/mainboard/biostar/am1ml/OemCustomize.c
+++ b/src/mainboard/biostar/am1ml/OemCustomize.c
@@ -147,6 +147,8 @@

void board_BeforeInitPost(struct sysinfo *cb, AMD_POST_PARAMS *InitPost)
 {
+	/* Set to 0xD0 instead of 0xE0 to avoid the PCI resource allocation problems. */
+	InitPost->MemConfig.BottomIo = 0xD0;
    InitPost->MemConfig.PlatformMemoryConfiguration = (PSO_ENTRY *)PlatformMemoryTable;
 }