diff --git a/arch/arm/boot/dts/at91-cosino.dtsi b/arch/arm/boot/dts/at91-cosino.dtsi
index df4b7869569587991abcf5bde8be1e495f632213..b6ea3f4a7206025f144f3bb8f6e69328f4996779 100644
--- a/arch/arm/boot/dts/at91-cosino.dtsi
+++ b/arch/arm/boot/dts/at91-cosino.dtsi
@@ -34,6 +34,14 @@ main_clock: clock@0 {
 			compatible = "atmel,osc", "fixed-clock";
 			clock-frequency = <12000000>;
 		};
+
+		slow_xtal {
+			clock-frequency = <32768>;
+		};
+
+		main_xtal {
+			clock-frequency = <12000000>;
+		};
 	};
 
 	ahb {