diff --git a/drivers/clk/rockchip/clk-rk3399.c b/drivers/clk/rockchip/clk-rk3399.c
index bb32739083e3..73da861158d6 100644
--- a/drivers/clk/rockchip/clk-rk3399.c
+++ b/drivers/clk/rockchip/clk-rk3399.c
@@ -878,7 +878,7 @@ static struct rockchip_clk_branch rk3399_clk_branches[] __initdata = {
 			RK3399_CLKSEL_CON(17), 8, 3, MFLAGS, 0, 7, DFLAGS,
 			RK3399_CLKGATE_CON(6), 2, GFLAGS),
 
-	COMPOSITE_NOMUX(0, "clk_pciephy_ref100m", "npll", 0,
+	COMPOSITE_NOMUX(SCLK_PCIEPHY_REF100M, "clk_pciephy_ref100m", "npll", 0,
 			RK3399_CLKSEL_CON(18), 11, 5, DFLAGS,
 			RK3399_CLKGATE_CON(12), 6, GFLAGS),
 	MUX(SCLK_PCIEPHY_REF, "clk_pciephy_ref", mux_pll_src_24m_pciephy_p, CLK_SET_RATE_PARENT,
diff --git a/include/dt-bindings/clock/rk3399-cru.h b/include/dt-bindings/clock/rk3399-cru.h
index fce4e0bf79ff..13f23767d404 100644
--- a/include/dt-bindings/clock/rk3399-cru.h
+++ b/include/dt-bindings/clock/rk3399-cru.h
@@ -130,6 +130,7 @@
 #define SCLK_DPHY_TX1RX1_CFG		164
 #define SCLK_DPHY_RX0_CFG		165
 #define SCLK_RMII_SRC			166
+#define SCLK_PCIEPHY_REF100M		167
 
 #define DCLK_VOP0			180
 #define DCLK_VOP1			181