diff --git a/arch/arm/dts/socfpga_cyclone5_de10_nano.dts b/arch/arm/dts/socfpga_cyclone5_de10_nano.dts
index b620dd8dda..4be4083941 100644
--- a/arch/arm/dts/socfpga_cyclone5_de10_nano.dts
+++ b/arch/arm/dts/socfpga_cyclone5_de10_nano.dts
@@ -77,6 +77,7 @@
 };
 
 &uart0 {
+	clock-frequency = <100000000>;
 	u-boot,dm-pre-reloc;
 };