diff --git a/arch/arm/boot/dts/ste-dbx5x0.dtsi b/arch/arm/boot/dts/ste-dbx5x0.dtsi
index 8c52f3f28b62e44ac8786205760188a1a85b1cc5..cc45052ce0b99912794745120b5e32988d781dbf 100644
--- a/arch/arm/boot/dts/ste-dbx5x0.dtsi
+++ b/arch/arm/boot/dts/ste-dbx5x0.dtsi
@@ -61,6 +61,10 @@
 			rtc_clk: rtc32k-clock {
 				#clock-cells = <0>;
 			};
+
+			smp_twd_clk: smp-twd-clock {
+				#clock-cells = <0>;
+			};
 		};
 
 		timer@a0410600 {