diff --git a/arch/arm/dts/zynq-7000.dtsi b/arch/arm/dts/zynq-7000.dtsi
index 97a9e49..8c6eafe 100644
--- a/arch/arm/dts/zynq-7000.dtsi
+++ b/arch/arm/dts/zynq-7000.dtsi
@@ -153,6 +153,7 @@
 			clocks = <&clkc 38>;
 			interrupt-parent = <&intc>;
 			interrupts = <0 25 4>;
+			clock-frequency = <400000>;
 			reg = <0xe0004000 0x1000>;
 			#address-cells = <1>;
 			#size-cells = <0>;
@@ -164,6 +165,7 @@
 			clocks = <&clkc 39>;
 			interrupt-parent = <&intc>;
 			interrupts = <0 48 4>;
+			clock-frequency = <400000>;
 			reg = <0xe0005000 0x1000>;
 			#address-cells = <1>;
 			#size-cells = <0>;