diff --git a/arch/arm/include/asm/arch-imx8ulp/cgc.h b/arch/arm/include/asm/arch-imx8ulp/cgc.h
index ad3edc8..e45f046 100644
--- a/arch/arm/include/asm/arch-imx8ulp/cgc.h
+++ b/arch/arm/include/asm/arch-imx8ulp/cgc.h
@@ -146,10 +146,10 @@
 };
 
 u32 cgc_clk_get_rate(enum cgc_clk clk);
-void cgc1_pll3_init(void);
-void cgc1_pll2_init(void);
+void cgc1_pll3_init(ulong freq);
+void cgc1_pll2_init(ulong freq);
 void cgc1_soscdiv_init(void);
-void cgc1_init_core_clk(void);
+void cgc1_init_core_clk(ulong freq);
 void cgc2_pll4_init(void);
 void cgc2_ddrclk_config(u32 src, u32 div);
 void cgc2_ddrclk_wait_unlock(void);
diff --git a/arch/arm/include/asm/arch-imx8ulp/clock.h b/arch/arm/include/asm/arch-imx8ulp/clock.h
index d7c92f7..2946cc1 100644
--- a/arch/arm/include/asm/arch-imx8ulp/clock.h
+++ b/arch/arm/include/asm/arch-imx8ulp/clock.h
@@ -9,6 +9,8 @@
 #include <asm/arch/pcc.h>
 #include <asm/arch/cgc.h>
 
+#define MHZ(X)	((X) * 1000000UL)
+
 /* Mainly for compatible to imx common code. */
 enum mxc_clock {
 	MXC_ARM_CLK = 0,
@@ -39,7 +41,8 @@
 void init_clk_fspi(int index);
 void init_clk_ddr(void);
 int set_ddr_clk(u32 phy_freq_mhz);
-void clock_init(void);
+void clock_init_early(void);
+void clock_init_late(void);
 void cgc1_enet_stamp_sel(u32 clk_src);
 void mxs_set_lcdclk(u32 base_addr, u32 freq_in_khz);
 void reset_lcdclk(void);