[coreboot-gerrit] Change in coreboot[master]: [TESTME]pcengines/apu1: fix the VGA-related PCI resource allocation p...

[Mike Banon (Code Review)]

Mike Banon has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/38224 )

Change subject: [TESTME]pcengines/apu1: fix the VGA-related PCI resource allocation problems
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[TESTME]pcengines/apu1: 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 has been plugged into APU1 board with PCIe-to-MiniPCIe
converter. It does not bring any downsides if there is no discrete VGA adapter.

Signed-off-by: Mike Banon 
Change-Id: Ie12611928169c68c7d44f0f55dd03756d663933a
---
M src/mainboard/pcengines/apu1/OemCustomize.c
1 file changed, 2 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/24/38224/1

diff --git a/src/mainboard/pcengines/apu1/OemCustomize.c b/src/mainboard/pcengines/apu1/OemCustomize.c
index 9febec7..987b4e1 100644
--- a/src/mainboard/pcengines/apu1/OemCustomize.c
+++ b/src/mainboard/pcengines/apu1/OemCustomize.c
@@ -115,5 +115,7 @@

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;
 }