diff --git a/plat/hisilicon/hikey/include/platform_def.h b/plat/hisilicon/hikey/include/platform_def.h
index 2537ac6..04ea71f 100644
--- a/plat/hisilicon/hikey/include/platform_def.h
+++ b/plat/hisilicon/hikey/include/platform_def.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017-2018, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2017-2019, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -28,13 +28,13 @@
 #define FIRMWARE_WELCOME_STR		"Booting Trusted Firmware\n"
 
 #define PLATFORM_CACHE_LINE_SIZE	64
-#define PLATFORM_CLUSTER_COUNT		2
-#define PLATFORM_CORE_COUNT_PER_CLUSTER	4
+#define PLATFORM_CLUSTER_COUNT		U(2)
+#define PLATFORM_CORE_COUNT_PER_CLUSTER	U(4)
 #define PLATFORM_CORE_COUNT		(PLATFORM_CLUSTER_COUNT *	\
 					 PLATFORM_CORE_COUNT_PER_CLUSTER)
 #define PLAT_MAX_PWR_LVL		(MPIDR_AFFLVL2)
 #define PLAT_NUM_PWR_DOMAINS		(PLATFORM_CORE_COUNT + \
-					 PLATFORM_CLUSTER_COUNT + 1)
+					 PLATFORM_CLUSTER_COUNT + U(1))
 
 #define PLAT_MAX_RET_STATE		U(1)
 #define PLAT_MAX_OFF_STATE		U(2)
diff --git a/plat/hisilicon/hikey960/include/platform_def.h b/plat/hisilicon/hikey960/include/platform_def.h
index f6edad6..215eebe 100644
--- a/plat/hisilicon/hikey960/include/platform_def.h
+++ b/plat/hisilicon/hikey960/include/platform_def.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017-2018, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2017-2019, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -25,12 +25,12 @@
 #define FIRMWARE_WELCOME_STR		"Booting Trusted Firmware\n"
 
 #define PLATFORM_CACHE_LINE_SIZE	64
-#define PLATFORM_CLUSTER_COUNT		2
-#define PLATFORM_CORE_COUNT_PER_CLUSTER	4
+#define PLATFORM_CLUSTER_COUNT		U(2)
+#define PLATFORM_CORE_COUNT_PER_CLUSTER	U(4)
 #define PLATFORM_CORE_COUNT		(PLATFORM_CLUSTER_COUNT * \
 					 PLATFORM_CORE_COUNT_PER_CLUSTER)
 #define PLAT_MAX_PWR_LVL		MPIDR_AFFLVL2
-#define PLAT_NUM_PWR_DOMAINS		(PLATFORM_CORE_COUNT + \
+#define PLAT_NUM_PWR_DOMAINS	(PLATFORM_CORE_COUNT + \
 					 PLATFORM_CLUSTER_COUNT + 1)
 
 #define PLAT_MAX_RET_STATE		U(1)
diff --git a/plat/hisilicon/poplar/include/platform_def.h b/plat/hisilicon/poplar/include/platform_def.h
index 9783f8d..ce0fbbc 100644
--- a/plat/hisilicon/poplar/include/platform_def.h
+++ b/plat/hisilicon/poplar/include/platform_def.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017-2018, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2017-2019, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -34,9 +34,9 @@
 #define BOOT_EMMC_NAME			"l-loader.bin"
 
 #define PLATFORM_CACHE_LINE_SIZE	(64)
-#define PLATFORM_CLUSTER_COUNT		(1)
-#define PLATFORM_CORE_COUNT		(4)
-#define PLATFORM_MAX_CPUS_PER_CLUSTER	(4)
+#define PLATFORM_CLUSTER_COUNT		U(1)
+#define PLATFORM_CORE_COUNT		U(4)
+#define PLATFORM_MAX_CPUS_PER_CLUSTER	U(4)
 
 /* IO framework user */
 #define MAX_IO_DEVICES			(4)