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-rw-r--r--src/mainboard/google/volteer/variants/baseboard/devicetree.cb4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/mainboard/google/volteer/variants/baseboard/devicetree.cb b/src/mainboard/google/volteer/variants/baseboard/devicetree.cb
index 693369542b..02060bdf45 100644
--- a/src/mainboard/google/volteer/variants/baseboard/devicetree.cb
+++ b/src/mainboard/google/volteer/variants/baseboard/devicetree.cb
@@ -136,6 +136,10 @@ chip soc/intel/tigerlake
register "IomTypeCPortPadCfg[7]" = "0x0"
+ # D3Hot and D3Cold for TCSS
+ register "TcssD3HotEnable" = "1"
+ register "TcssD3ColdEnable" = "1"
+
# DP port
register "DdiPortAConfig" = "1" # eDP
register "DdiPortBConfig" = "0"