diff --git a/plat/allwinner/common/include/sunxi_def.h b/plat/allwinner/common/include/sunxi_def.h
index e68fbe4..da87b23 100644
--- a/plat/allwinner/common/include/sunxi_def.h
+++ b/plat/allwinner/common/include/sunxi_def.h
@@ -14,4 +14,8 @@
 #define SUNXI_UART0_BAUDRATE		115200
 #define SUNXI_UART0_CLK_IN_HZ		SUNXI_OSC24M_CLK_IN_HZ
 
+#define SUNXI_SOC_A64			0x1689
+#define SUNXI_SOC_H5			0x1718
+#define SUNXI_SOC_H6			0x1728
+
 #endif /* __SUNXI_DEF_H__ */
diff --git a/plat/allwinner/common/sunxi_bl31_setup.c b/plat/allwinner/common/sunxi_bl31_setup.c
index 7e11cec..b56b9ee 100644
--- a/plat/allwinner/common/sunxi_bl31_setup.c
+++ b/plat/allwinner/common/sunxi_bl31_setup.c
@@ -68,13 +68,13 @@
 	uint16_t soc_id = sunxi_read_soc_id();
 
 	switch (soc_id) {
-	case 0x1689:
+	case SUNXI_SOC_A64:
 		soc_name = "A64/H64/R18";
 		break;
-	case 0x1718:
+	case SUNXI_SOC_H5:
 		soc_name = "H5";
 		break;
-	case 0x1728:
+	case SUNXI_SOC_H6:
 		soc_name = "H6";
 		break;
 	default: