[coreboot-gerrit] [XS] Change in coreboot[master]: [TESTME] haswell: Keep 32-bit allocations below ECAM

[Nico Huber (Code Review)]

Nico Huber has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/76198?usp=email )

Change subject: [TESTME] haswell: Keep 32-bit allocations below ECAM
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[TESTME] haswell: Keep 32-bit allocations below ECAM

Hopefully works around boot issues on T440p.

Change-Id: Ife0566779f7524ebc129f27636b5633dc5af99fd
Signed-off-by: Nico Huber 
---
M src/northbridge/intel/haswell/Kconfig
1 file changed, 8 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/98/76198/1

diff --git a/src/northbridge/intel/haswell/Kconfig b/src/northbridge/intel/haswell/Kconfig
index d1c9ec2..7ae08a3 100644
--- a/src/northbridge/intel/haswell/Kconfig
+++ b/src/northbridge/intel/haswell/Kconfig
@@ -64,6 +64,14 @@
    int
    default 64

+config DOMAIN_RESOURCE_32BIT_LIMIT
+	default 0xf0000000
+	help
+	  Keep 32-bit allocations below ECAM, effectively reserving all
+	  space between 0xf4000000 and 0xfe000000. This is also what we
+	  do in ACPI, and trying to allocate in that range leads to un-
+	  identified conflicts.
+
 config DCACHE_RAM_BASE
    hex
    default 0xff7c0000