mb/google/volteer: Enable D3HotEnable and D3ColdEnable for Volteer
This explicitly enables both of TCSS D3HotEnable and D3ColdEnable
from Volteer devicetree.cb setting.
BUG=:b:146624360
TEST=Built and booted on Volteer.
Signed-off-by: John Zhao <john.zhao@intel.com>
Change-Id: I1a168ad87169c0f6633704c55c9293aa25710188
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41547
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Wonkyu Kim <wonkyu.kim@intel.com>
diff --git a/src/mainboard/google/volteer/variants/baseboard/devicetree.cb b/src/mainboard/google/volteer/variants/baseboard/devicetree.cb
index 6933695..02060bd 100644
--- a/src/mainboard/google/volteer/variants/baseboard/devicetree.cb
+++ b/src/mainboard/google/volteer/variants/baseboard/devicetree.cb
@@ -136,6 +136,10 @@
register "IomTypeCPortPadCfg[7]" = "0x0"
+ # D3Hot and D3Cold for TCSS
+ register "TcssD3HotEnable" = "1"
+ register "TcssD3ColdEnable" = "1"
+
# DP port
register "DdiPortAConfig" = "1" # eDP
register "DdiPortBConfig" = "0"