diff --git a/arch/arm/boot/dts/r8a7790-lager.dts b/arch/arm/boot/dts/r8a7790-lager.dts
index 6472cf0914e2..cc65e3f96f08 100644
--- a/arch/arm/boot/dts/r8a7790-lager.dts
+++ b/arch/arm/boot/dts/r8a7790-lager.dts
@@ -338,3 +338,7 @@
 		regulator-always-on;
 	};
 };
+
+&cpu0 {
+	cpu0-supply = <&vdd_dvfs>;
+};
diff --git a/arch/arm/boot/dts/r8a7790.dtsi b/arch/arm/boot/dts/r8a7790.dtsi
index e2c7d6df5be4..e990d3c4fe62 100644
--- a/arch/arm/boot/dts/r8a7790.dtsi
+++ b/arch/arm/boot/dts/r8a7790.dtsi
@@ -44,6 +44,17 @@
 			compatible = "arm,cortex-a15";
 			reg = <0>;
 			clock-frequency = <1300000000>;
+			voltage-tolerance = <1>; /* 1% */
+			clocks = <&cpg_clocks R8A7790_CLK_Z>;
+			clock-latency = <300000>; /* 300 us */
+
+			/* kHz - uV - OPPs unknown yet */
+			operating-points = <1400000 1000000>,
+					   <1225000 1000000>,
+					   <1050000 1000000>,
+					   < 875000 1000000>,
+					   < 700000 1000000>,
+					   < 350000 1000000>;
 		};
 
 		cpu1: cpu@1 {