diff --git a/include/plat/arm/common/arm_def.h b/include/plat/arm/common/arm_def.h
index 7df6b0d88821f2f0f38863b885e63aea63554cc3..7c852e19f24ab382af836e9302d2bd75a63bb0c7 100644
--- a/include/plat/arm/common/arm_def.h
+++ b/include/plat/arm/common/arm_def.h
@@ -12,6 +12,7 @@
 #include <drivers/arm/gic_common.h>
 #include <lib/utils_def.h>
 #include <lib/xlat_tables/xlat_tables_defs.h>
+#include <plat/arm/common/smccc_def.h>
 #include <plat/common/common_def.h>
 
 /******************************************************************************
diff --git a/include/plat/arm/common/plat_arm.h b/include/plat/arm/common/plat_arm.h
index 83d4c20ec6e5b97d0b8f92437206e2a853b7e97d..1b59795293bbfeb86604fd27173cfb56647c55ab 100644
--- a/include/plat/arm/common/plat_arm.h
+++ b/include/plat/arm/common/plat_arm.h
@@ -148,11 +148,6 @@ void arm_setup_romlib(void);
 #define ARM_ROTPK_DEVEL_RSA_ID		2
 #define ARM_ROTPK_DEVEL_ECDSA_ID	3
 
-/* Defines used to retrieve ARM SOC revision */
-#define ARM_SOC_CONTINUATION_CODE	U(0x4)
-#define ARM_SOC_IDENTIFICATION_CODE	U(0x3B)
-#define ARM_SOC_CONTINUATION_SHIFT	U(24)
-#define ARM_SOC_IDENTIFICATION_SHIFT	U(16)
 
 /* IO storage utility functions */
 int arm_io_setup(void);
diff --git a/include/plat/arm/common/smccc_def.h b/include/plat/arm/common/smccc_def.h
new file mode 100644
index 0000000000000000000000000000000000000000..6e698e5d2c898d148f16b029ee170ec3eaa825d3
--- /dev/null
+++ b/include/plat/arm/common/smccc_def.h
@@ -0,0 +1,15 @@
+/*
+ * Copyright (c) 2020, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+#ifndef SMCCC_DEF_H
+#define SMCCC_DEF_H
+
+/* Defines used to retrieve ARM SOC revision */
+#define ARM_SOC_CONTINUATION_CODE	U(0x4)
+#define ARM_SOC_IDENTIFICATION_CODE	U(0x3B)
+#define ARM_SOC_CONTINUATION_SHIFT	U(24)
+#define ARM_SOC_IDENTIFICATION_SHIFT	U(16)
+
+#endif /* SMCCC_DEF_H */
diff --git a/plat/arm/board/a5ds/include/platform_def.h b/plat/arm/board/a5ds/include/platform_def.h
index 31dfb1cf16117b7ffbfdd51833592ddb8081e758..ab0ff58595312b01b6daadcdd7b81824f9c341ec 100644
--- a/plat/arm/board/a5ds/include/platform_def.h
+++ b/plat/arm/board/a5ds/include/platform_def.h
@@ -11,6 +11,7 @@
 #include <lib/utils_def.h>
 #include <lib/xlat_tables/xlat_tables_defs.h>
 #include <plat/arm/board/common/v2m_def.h>
+#include <plat/arm/common/smccc_def.h>
 #include <plat/common/common_def.h>
 
 /* Memory location options for TSP */
diff --git a/plat/arm/board/corstone700/include/platform_def.h b/plat/arm/board/corstone700/include/platform_def.h
index 0fb74e442e4dc98301c9c8fdc1808263bfd115bb..cc4dc3a596ad5b2bdf0140936083498a8c3b32b8 100644
--- a/plat/arm/board/corstone700/include/platform_def.h
+++ b/plat/arm/board/corstone700/include/platform_def.h
@@ -9,9 +9,9 @@
 
 #include <lib/utils_def.h>
 #include <lib/xlat_tables/xlat_tables_defs.h>
-
 #include <plat/arm/board/common/v2m_def.h>
 #include <plat/arm/common/arm_spm_def.h>
+#include <plat/arm/common/smccc_def.h>
 #include <plat/common/common_def.h>
 
 /* PL011 UART related constants */
diff --git a/plat/arm/board/fvp_ve/include/platform_def.h b/plat/arm/board/fvp_ve/include/platform_def.h
index 1b07a9b42139c5c8eab32fd41650f4bd7c39a436..70a12ea53099ce04ad7ec14c2628793bbac2fab6 100644
--- a/plat/arm/board/fvp_ve/include/platform_def.h
+++ b/plat/arm/board/fvp_ve/include/platform_def.h
@@ -11,6 +11,7 @@
 #include <lib/utils_def.h>
 #include <lib/xlat_tables/xlat_tables_defs.h>
 #include <plat/arm/board/common/v2m_def.h>
+#include <plat/arm/common/smccc_def.h>
 #include <plat/common/common_def.h>
 
 #include "../fvp_ve_def.h"
diff --git a/plat/xilinx/versal/include/versal_def.h b/plat/xilinx/versal/include/versal_def.h
index 9a9b7c01783ed6202f74c8d000eb2f3c2d28e627..810e5d877d980cdce25008d30d53f736e67d75fd 100644
--- a/plat/xilinx/versal/include/versal_def.h
+++ b/plat/xilinx/versal/include/versal_def.h
@@ -7,6 +7,7 @@
 #ifndef VERSAL_DEF_H
 #define VERSAL_DEF_H
 
+#include <plat/arm/common/smccc_def.h>
 #include <plat/common/common_def.h>
 
 /* List all consoles */
diff --git a/plat/xilinx/zynqmp/include/zynqmp_def.h b/plat/xilinx/zynqmp/include/zynqmp_def.h
index 5d335d945ba0c364fd90ec44a9789e17d8ec8718..5e7254e5c5bca7082fe9bb3a23452a50f2ca710d 100644
--- a/plat/xilinx/zynqmp/include/zynqmp_def.h
+++ b/plat/xilinx/zynqmp/include/zynqmp_def.h
@@ -7,6 +7,7 @@
 #ifndef ZYNQMP_DEF_H
 #define ZYNQMP_DEF_H
 
+#include <plat/arm/common/smccc_def.h>
 #include <plat/common/common_def.h>
 
 #define ZYNQMP_CONSOLE_ID_cadence	1