diff --git a/drivers/soc/rockchip/rockchip-cpuinfo.c b/drivers/soc/rockchip/rockchip-cpuinfo.c
index d34bf5153131..eae9cb55b3db 100644
--- a/drivers/soc/rockchip/rockchip-cpuinfo.c
+++ b/drivers/soc/rockchip/rockchip-cpuinfo.c
@@ -105,6 +105,23 @@ static struct platform_driver rockchip_cpuinfo_driver = {
 	},
 };
 
+static void px30_init(void)
+{
+	void __iomem *base;
+
+	rockchip_soc_id = ROCKCHIP_SOC_PX30;
+#define PX30_DDR_GRF_BASE	0xFF630000
+#define PX30_DDR_GRF_CON1	0x04
+	base = ioremap(PX30_DDR_GRF_BASE, SZ_4K);
+	if (base) {
+		unsigned int val = readl_relaxed(base + PX30_DDR_GRF_CON1);
+
+		if (((val >> 14) & 0x03) == 0x03)
+			rockchip_soc_id = ROCKCHIP_SOC_PX30S;
+		iounmap(base);
+	}
+}
+
 static void rv1109_init(void)
 {
 	rockchip_soc_id = ROCKCHIP_SOC_RV1109;
@@ -214,6 +231,8 @@ int __init rockchip_soc_id_init(void)
 		rk3566_init();
 	} else if (cpu_is_rk3568()) {
 		rk3568_init();
+	} else if (cpu_is_px30()) {
+		px30_init();
 	}
 
 	return 0;
diff --git a/include/linux/rockchip/cpu.h b/include/linux/rockchip/cpu.h
index 33a1db1f8e5f..eef266c9413e 100644
--- a/include/linux/rockchip/cpu.h
+++ b/include/linux/rockchip/cpu.h
@@ -18,6 +18,7 @@
 
 #define ROCKCHIP_CPU_MASK		0xffff0000
 #define ROCKCHIP_CPU_SHIFT		16
+#define ROCKCHIP_CPU_PX30		0x33260000
 #define ROCKCHIP_CPU_RV1109		0x11090000
 #define ROCKCHIP_CPU_RV1126		0x11260000
 #define ROCKCHIP_CPU_RK312X		0x31260000
@@ -81,6 +82,20 @@ static inline int rockchip_soc_id_init(void)
 
 #endif
 
+#ifdef CONFIG_CPU_PX30
+static inline bool cpu_is_px30(void)
+{
+	if (rockchip_soc_id)
+		return (rockchip_soc_id & ROCKCHIP_CPU_MASK) == ROCKCHIP_CPU_PX30;
+	return of_machine_is_compatible("rockchip,px30") ||
+	       of_machine_is_compatible("rockchip,px30s") ||
+	       of_machine_is_compatible("rockchip,rk3326") ||
+	       of_machine_is_compatible("rockchip,rk3326s");
+}
+#else
+static inline bool cpu_is_px30(void) { return false; }
+#endif
+
 #if defined(CONFIG_CPU_RV1126) || defined(CONFIG_CPU_RV1109)
 static inline bool cpu_is_rv1109(void)
 {
@@ -158,6 +173,8 @@ static inline bool cpu_is_rk3568(void) { return false; }
 #endif
 
 #define ROCKCHIP_SOC_MASK	(ROCKCHIP_CPU_MASK | 0xff)
+#define ROCKCHIP_SOC_PX30	(ROCKCHIP_CPU_PX30 | 0x00)
+#define ROCKCHIP_SOC_PX30S	(ROCKCHIP_CPU_PX30 | 0x01)
 #define ROCKCHIP_SOC_RV1109     (ROCKCHIP_CPU_RV1109 | 0x00)
 #define ROCKCHIP_SOC_RV1126     (ROCKCHIP_CPU_RV1126 | 0x00)
 #define ROCKCHIP_SOC_RK3126     (ROCKCHIP_CPU_RK312X | 0x00)
@@ -179,6 +196,8 @@ static inline bool soc_is_##id(void) \
 	return of_machine_is_compatible("rockchip,"#id); \
 }
 
+ROCKCHIP_SOC(px30, PX30)
+ROCKCHIP_SOC(px30s, PX30S)
 ROCKCHIP_SOC(rv1109, RV1109)
 ROCKCHIP_SOC(rv1126, RV1126)
 ROCKCHIP_SOC(rk3126, RK3126)