diff --git a/include/plat/arm/board/common/board_arm_def.h b/include/plat/arm/board/common/board_arm_def.h
index 751c3bb..a065abf 100644
--- a/include/plat/arm/board/common/board_arm_def.h
+++ b/include/plat/arm/board/common/board_arm_def.h
@@ -89,11 +89,26 @@
 
 #define PLAT_ARM_TRUSTED_SRAM_SIZE	0x00040000	/* 256 KB */
 
+/* Reserve the last block of flash for PSCI MEM PROTECT flag */
 #define PLAT_ARM_FIP_BASE		V2M_FLASH0_BASE
-#define PLAT_ARM_FIP_MAX_SIZE		V2M_FLASH0_SIZE
+#define PLAT_ARM_FIP_MAX_SIZE		(V2M_FLASH0_SIZE - V2M_FLASH_BLOCK_SIZE)
 
 #define PLAT_ARM_NVM_BASE		V2M_FLASH0_BASE
-#define PLAT_ARM_NVM_SIZE		V2M_FLASH0_SIZE
+#define PLAT_ARM_NVM_SIZE		(V2M_FLASH0_SIZE - V2M_FLASH_BLOCK_SIZE)
+
+/* PSCI memory protect definitions:
+ * This variable is stored in a non-secure flash because some ARM reference
+ * platforms do not have secure NVRAM. Real systems that provided MEM_PROTECT
+ * support must use a secure NVRAM to store the PSCI MEM_PROTECT definitions.
+ */
+#define PLAT_ARM_MEM_PROT_ADDR		(V2M_FLASH0_BASE + \
+					 V2M_FLASH0_SIZE - V2M_FLASH_BLOCK_SIZE)
 
+/*
+ * Map mem_protect flash region with read and write permissions
+ */
+#define ARM_V2M_MAP_MEM_PROTECT		MAP_REGION_FLAT(PLAT_ARM_MEM_PROT_ADDR,	\
+						V2M_FLASH_BLOCK_SIZE,		\
+						MT_DEVICE | MT_RW | MT_SECURE)
 
 #endif /* __BOARD_ARM_DEF_H__ */
diff --git a/include/plat/arm/board/common/v2m_def.h b/include/plat/arm/board/common/v2m_def.h
index 2ad513a..364b780 100644
--- a/include/plat/arm/board/common/v2m_def.h
+++ b/include/plat/arm/board/common/v2m_def.h
@@ -69,6 +69,7 @@
 /* NOR Flash */
 #define V2M_FLASH0_BASE			0x08000000
 #define V2M_FLASH0_SIZE			0x04000000
+#define V2M_FLASH_BLOCK_SIZE		0x00040000	/* 256 KB */
 
 #define V2M_IOFPGA_BASE			0x1c000000
 #define V2M_IOFPGA_SIZE			0x03000000
diff --git a/include/plat/arm/common/plat_arm.h b/include/plat/arm/common/plat_arm.h
index f0e9767..4e589c0 100644
--- a/include/plat/arm/common/plat_arm.h
+++ b/include/plat/arm/common/plat_arm.h
@@ -122,6 +122,10 @@
 int arm_validate_ns_entrypoint(uintptr_t entrypoint);
 void arm_system_pwr_domain_resume(void);
 void arm_program_trusted_mailbox(uintptr_t address);
+int arm_psci_read_mem_protect(int *val);
+int arm_nor_psci_write_mem_protect(int val);
+void arm_nor_psci_do_mem_protect(void);
+int arm_psci_mem_protect_chk(uintptr_t base, u_register_t length);
 
 /* Topology utility function */
 int arm_check_mpidr(u_register_t mpidr);