diff --git a/src/mainboard/google/sarien/variants/arcada/devicetree.cb b/src/mainboard/google/sarien/variants/arcada/devicetree.cb
index fa926aea09..ff26cbf49f 100644
--- a/src/mainboard/google/sarien/variants/arcada/devicetree.cb
+++ b/src/mainboard/google/sarien/variants/arcada/devicetree.cb
@@ -35,6 +35,7 @@ chip soc/intel/cannonlake
 	register "satapwroptimize" = "1"
 	register "tdp_pl1_override" = "25"
 	register "tdp_pl2_override" = "51"
+	register "Device4Enable" = "1"
 
 	# Intel Common SoC Config
 	register "usb2_ports[0]" = "USB2_PORT_TYPE_C(OC_SKIP)"	# Left Type-C Port
diff --git a/src/mainboard/google/sarien/variants/sarien/devicetree.cb b/src/mainboard/google/sarien/variants/sarien/devicetree.cb
index 48404a8b64..37ef3dc5e0 100644
--- a/src/mainboard/google/sarien/variants/sarien/devicetree.cb
+++ b/src/mainboard/google/sarien/variants/sarien/devicetree.cb
@@ -44,6 +44,7 @@ chip soc/intel/cannonlake
 	register "SlowSlewRateForFivr" = "2"
 	register "tdp_pl1_override" = "25"
 	register "tdp_pl2_override" = "51"
+	register "Device4Enable" = "1"
 
 	# Intel Common SoC Config
 	register "usb2_ports[0]" = "USB2_PORT_TYPE_C(OC_SKIP)"	# Left Type-C Port