diff --git a/drivers/soc/rockchip/rockchip-cpuinfo.c b/drivers/soc/rockchip/rockchip-cpuinfo.c
index 724ba622a34d..c88d54cff8ab 100644
--- a/drivers/soc/rockchip/rockchip-cpuinfo.c
+++ b/drivers/soc/rockchip/rockchip-cpuinfo.c
@@ -195,8 +195,11 @@ static void rk3568_init(void)
 	rk356x_set_cpu_version();
 }
 
-static int __init rockchip_soc_id_init(void)
+int __init rockchip_soc_id_init(void)
 {
+	if (rockchip_soc_id)
+		return 0;
+
 	if (cpu_is_rk3288()) {
 		rk3288_init();
 	} else if (cpu_is_rk312x()) {
diff --git a/include/linux/rockchip/cpu.h b/include/linux/rockchip/cpu.h
index 727a2d621745..33a1db1f8e5f 100644
--- a/include/linux/rockchip/cpu.h
+++ b/include/linux/rockchip/cpu.h
@@ -54,6 +54,9 @@ static inline void rockchip_set_cpu(unsigned long code)
 	rockchip_soc_id &= ~ROCKCHIP_CPU_MASK;
 	rockchip_soc_id |= (code << ROCKCHIP_CPU_SHIFT) & ROCKCHIP_CPU_MASK;
 }
+
+int rockchip_soc_id_init(void);
+
 #else
 
 #define rockchip_soc_id 0
@@ -70,6 +73,12 @@ static inline void rockchip_set_cpu_version(unsigned long ver)
 static inline void rockchip_set_cpu(unsigned long code)
 {
 }
+
+static inline int rockchip_soc_id_init(void)
+{
+	return 0;
+}
+
 #endif
 
 #if defined(CONFIG_CPU_RV1126) || defined(CONFIG_CPU_RV1109)