diff --git a/arch/arm64/boot/dts/rockchip/rk3566-radxa-cm3-io.dts b/arch/arm64/boot/dts/rockchip/rk3566-radxa-cm3-io.dts
index 7a0d00e1da1037..9aa2672368f5ba 100644
--- a/arch/arm64/boot/dts/rockchip/rk3566-radxa-cm3-io.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3566-radxa-cm3-io.dts
@@ -82,6 +82,13 @@
 			press-threshold-microvolt = <2000>;
 		};
 	};
+
+	fan0: pwm-fan {
+		compatible = "pwm-fan";
+		#cooling-cells = <2>;
+		cooling-levels = <0 64 128 192 255>;
+		pwms = <&pwm0 0 10000 0>;
+	};
 };
 
 &gpio_leds {
@@ -172,6 +179,45 @@
 	status = "okay";
 };
 
+&pwm0 {
+	pinctrl-0 = <&pwm0m1_pins>;
+	status = "okay";
+};
+
+&i2c2 {
+	status = "okay";
+	hym8563: hym8563@51 {
+		compatible = "haoyu,hym8563";
+		status = "okay";
+		reg = <0x51>;
+		#clock-cells = <0>;
+		clock-frequency = <32768>;
+		clock-output-names = "hym8563";
+	};
+};
+
+&soc_thermal {
+	sustainable-power = <5000>; /* milliwatts */
+	cooling-maps {
+		map2 {
+			trip = <&target>;
+			cooling-device =
+				<&fan0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+			contribution = <8192>;
+		};
+		map3 {
+			trip = <&threshold>;
+			cooling-device =
+				<&fan0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+			contribution = <8192>;
+		};
+	};
+};
+
+&threshold {
+	temperature = <60000>;
+};
+
 &pinctrl {
 	headphone {
 		hp_det: hp-det {