diff --git a/arch/arm/boot/dts/mpa1600.dts b/arch/arm/boot/dts/mpa1600.dts
index ccf9ea242f72977f56f15cc658d555c063b85150..f0f5e10989282e6c49d5e5fefd5b3082bc26e0f8 100644
--- a/arch/arm/boot/dts/mpa1600.dts
+++ b/arch/arm/boot/dts/mpa1600.dts
@@ -25,6 +25,14 @@
 			compatible = "atmel,osc", "fixed-clock";
 			clock-frequency = <18432000>;
 		};
+
+		slow_xtal {
+			clock-frequency = <32768>;
+		};
+
+		main_xtal {
+			clock-frequency = <18432000>;
+		};
 	};
 
 	ahb {