diff --git a/arch/arm/boot/dts/dove-cubox.dts b/arch/arm/boot/dts/dove-cubox.dts
index 7e3065abd7512eaccc203feefd60345ac931e7f0..5cae2ab69762a8298a694b21f1ee71c753a4a60c 100644
--- a/arch/arm/boot/dts/dove-cubox.dts
+++ b/arch/arm/boot/dts/dove-cubox.dts
@@ -44,11 +44,60 @@
 			gpio = <&gpio0 1 0>;
 		};
 	};
+
+	clocks {
+		/* 25MHz reference crystal */
+		ref25: oscillator {
+			compatible = "fixed-clock";
+			#clock-cells = <0>;
+			clock-frequency = <25000000>;
+		};
+	};
 };
 
 &uart0 { status = "okay"; };
 &sata0 { status = "okay"; };
-&i2c0 { status = "okay"; };
+
+&i2c0 {
+	status = "okay";
+	clock-frequency = <100000>;
+
+	si5351: clock-generator {
+		compatible = "silabs,si5351a-msop";
+		reg = <0x60>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+		#clock-cells = <1>;
+
+		/* connect xtal input to 25MHz reference */
+		clocks = <&ref25>;
+
+		/* connect xtal input as source of pll0 and pll1 */
+		silabs,pll-source = <0 0>, <1 0>;
+
+		clkout0 {
+			reg = <0>;
+			silabs,drive-strength = <8>;
+			silabs,multisynth-source = <0>;
+			silabs,clock-source = <0>;
+			silabs,pll-master;
+		};
+
+		clkout1 {
+			reg = <1>;
+			silabs,drive-strength = <8>;
+			silabs,multisynth-source = <1>;
+			silabs,clock-source = <0>;
+			silabs,pll-master;
+		};
+
+		clkout2 {
+			reg = <2>;
+			silabs,multisynth-source = <1>;
+			silabs,clock-source = <0>;
+		};
+	};
+};
 
 &sdio0 {
 	status = "okay";