diff --git a/include/dt-bindings/clock/rk3288-cru.h b/include/dt-bindings/clock/rk3288-cru.h
index f60ce72a2b2c76c23da6fa52c7eb470d39195633..d6b59aeed5532b2d5b222c9b24fbcb473753fc0d 100644
--- a/include/dt-bindings/clock/rk3288-cru.h
+++ b/include/dt-bindings/clock/rk3288-cru.h
@@ -80,6 +80,7 @@
 #define SCLK_SDIO0_SAMPLE	119
 #define SCLK_SDIO1_SAMPLE	120
 #define SCLK_EMMC_SAMPLE	121
+#define SCLK_USBPHY480M_SRC	122
 
 #define DCLK_VOP0		190
 #define DCLK_VOP1		191