diff --git a/arch/arm/boot/dts/mpa1600.dts b/arch/arm/boot/dts/mpa1600.dts
index ccf9ea242f72..f0f5e1098928 100644
--- a/arch/arm/boot/dts/mpa1600.dts
+++ b/arch/arm/boot/dts/mpa1600.dts
@@ -25,6 +25,14 @@ main_clock: clock@0 {
 			compatible = "atmel,osc", "fixed-clock";
 			clock-frequency = <18432000>;
 		};
+
+		slow_xtal {
+			clock-frequency = <32768>;
+		};
+
+		main_xtal {
+			clock-frequency = <18432000>;
+		};
 	};
 
 	ahb {