diff --git a/include/dt-bindings/clock/rk3288-cru.h b/include/dt-bindings/clock/rk3288-cru.h
index 237bd1d43d67..a9738fd6ecef 100644
--- a/include/dt-bindings/clock/rk3288-cru.h
+++ b/include/dt-bindings/clock/rk3288-cru.h
@@ -89,6 +89,7 @@
 #define SCLK_CRYPTO		125
 #define SCLK_MIPIDSI_24M	126
 #define SCLK_VIP_OUT		127
+#define SCLK_DDRCLK		128
 
 #define SCLK_MAC		151
 #define SCLK_MACREF_OUT		152