[XS] Change in coreboot[main]: mb/google/rex: Reland RAMTOP caching for Ovis

[Subrata Banik (Code Review)]

Subrata Banik has submitted this change. ( https://review.coreboot.org/c/coreboot/+/81270?usp=email )

Change subject: mb/google/rex: Reland RAMTOP caching for Ovis
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mb/google/rex: Reland RAMTOP caching for Ovis

This patch ensures Ovis baseboard can select RAMTOP caching to improve
the boot time w/o any runtime hang.

BUG=b:306677879
BRANCH=firmware-rex-15709.B
TEST=Verified boot on google/ovis with ~30ms savings in boot time.

Change-Id: Ic0b73eb8fb9cd6ca70d3d7168b79dfd0fbc550e3
Signed-off-by: Subrata Banik 
Reviewed-on: https://review.coreboot.org/c/coreboot/+/81270
Tested-by: build bot (Jenkins) 
Reviewed-by: Stefan Reinauer 
---
M src/mainboard/google/rex/Kconfig
1 file changed, 1 insertion(+), 0 deletions(-)

Approvals:
  build bot (Jenkins): Verified
  Stefan Reinauer: Looks good to me, approved

diff --git a/src/mainboard/google/rex/Kconfig b/src/mainboard/google/rex/Kconfig
index 4fc1c32..b162651 100644
--- a/src/mainboard/google/rex/Kconfig
+++ b/src/mainboard/google/rex/Kconfig
@@ -43,6 +43,7 @@
    select RT8168_GEN_ACPI_POWER_RESOURCE
    select RT8168_GET_MAC_FROM_VPD
    select RT8168_SET_LED_MODE
+	select SOC_INTEL_COMMON_BASECODE_RAMTOP
    select SOC_INTEL_IOE_DIE_SUPPORT
    select SOC_INTEL_METEORLAKE_U_H
    select SOC_INTEL_ENABLE_USB4_PCIE_RESOURCES