diff --git a/include/plat/arm/common/arm_def.h b/include/plat/arm/common/arm_def.h
index 69a9959..ead1a8b 100644
--- a/include/plat/arm/common/arm_def.h
+++ b/include/plat/arm/common/arm_def.h
@@ -312,19 +312,6 @@
  *****************************************************************************/
 
 /*
- * We need to access DRAM2 from BL2 for PSCI_MEM_PROTECT for
- * AArch64 builds
- */
-#ifdef AARCH64
-#define PLAT_PHY_ADDR_SPACE_SIZE			(1ULL << 36)
-#define PLAT_VIRT_ADDR_SPACE_SIZE			(1ULL << 36)
-#else
-#define PLAT_PHY_ADDR_SPACE_SIZE			(1ULL << 32)
-#define PLAT_VIRT_ADDR_SPACE_SIZE			(1ULL << 32)
-#endif
-
-
-/*
  * This macro defines the deepest retention state possible. A higher state
  * id will represent an invalid or a power down state.
  */
diff --git a/plat/arm/board/fvp/include/platform_def.h b/plat/arm/board/fvp/include/platform_def.h
index 2313ab0..207cd31 100644
--- a/plat/arm/board/fvp/include/platform_def.h
+++ b/plat/arm/board/fvp/include/platform_def.h
@@ -256,4 +256,15 @@
 
 #define PLAT_SP_PRI			PLAT_RAS_PRI
 
+/*
+ * Physical and virtual address space limits for MMU in AARCH64 & AARCH32 modes
+ */
+#ifdef AARCH64
+#define PLAT_PHY_ADDR_SPACE_SIZE	(1ULL << 36)
+#define PLAT_VIRT_ADDR_SPACE_SIZE	(1ULL << 36)
+#else
+#define PLAT_PHY_ADDR_SPACE_SIZE	(1ULL << 32)
+#define PLAT_VIRT_ADDR_SPACE_SIZE	(1ULL << 32)
+#endif
+
 #endif /* PLATFORM_DEF_H */
diff --git a/plat/arm/board/fvp_ve/include/platform_def.h b/plat/arm/board/fvp_ve/include/platform_def.h
index 1b21c79..b3b3672 100644
--- a/plat/arm/board/fvp_ve/include/platform_def.h
+++ b/plat/arm/board/fvp_ve/include/platform_def.h
@@ -328,4 +328,15 @@
 
 #define PLAT_ARM_G0_IRQ_PROPS(grp)	ARM_G0_IRQ_PROPS(grp)
 
+/*
+ * Physical and virtual address space limits for MMU in AARCH64 & AARCH32 modes
+ */
+#ifdef AARCH64
+#define PLAT_PHY_ADDR_SPACE_SIZE	(1ULL << 36)
+#define PLAT_VIRT_ADDR_SPACE_SIZE	(1ULL << 36)
+#else
+#define PLAT_PHY_ADDR_SPACE_SIZE	(1ULL << 32)
+#define PLAT_VIRT_ADDR_SPACE_SIZE	(1ULL << 32)
+#endif
+
 #endif /* PLATFORM_H */
diff --git a/plat/arm/board/juno/include/platform_def.h b/plat/arm/board/juno/include/platform_def.h
index e096e33..d693c26 100644
--- a/plat/arm/board/juno/include/platform_def.h
+++ b/plat/arm/board/juno/include/platform_def.h
@@ -288,4 +288,15 @@
 /* System power domain level */
 #define CSS_SYSTEM_PWR_DMN_LVL		ARM_PWR_LVL2
 
+/*
+ * Physical and virtual address space limits for MMU in AARCH64 & AARCH32 modes
+ */
+#ifdef AARCH64
+#define PLAT_PHY_ADDR_SPACE_SIZE	(1ULL << 36)
+#define PLAT_VIRT_ADDR_SPACE_SIZE	(1ULL << 36)
+#else
+#define PLAT_PHY_ADDR_SPACE_SIZE	(1ULL << 32)
+#define PLAT_VIRT_ADDR_SPACE_SIZE	(1ULL << 32)
+#endif
+
 #endif /* PLATFORM_DEF_H */
diff --git a/plat/arm/board/n1sdp/include/platform_def.h b/plat/arm/board/n1sdp/include/platform_def.h
index 0964f56..ff583a9 100644
--- a/plat/arm/board/n1sdp/include/platform_def.h
+++ b/plat/arm/board/n1sdp/include/platform_def.h
@@ -25,7 +25,22 @@
 #define PLAT_ARM_CRASH_UART_CLK_IN_HZ		PLAT_ARM_RUN_UART_CLK_IN_HZ
 
 #define PLAT_ARM_DRAM2_BASE			ULL(0x8080000000)
-#define PLAT_ARM_DRAM2_SIZE			ULL(0x780000000)
+#define PLAT_ARM_DRAM2_SIZE			ULL(0xF80000000)
+
+/*
+ * N1SDP platform supports RDIMMs with ECC capability. To use the ECC
+ * capability, the entire DDR memory space has to be zeroed out before
+ * enabling the ECC bits in DMC620. The access the complete DDR memory
+ * space the physical & virtual address space limits are extended to
+ * 40-bits.
+ */
+#ifndef AARCH32
+#define PLAT_PHY_ADDR_SPACE_SIZE		(1ULL << 40)
+#define PLAT_VIRT_ADDR_SPACE_SIZE		(1ULL << 40)
+#else
+#define PLAT_PHY_ADDR_SPACE_SIZE		(1ULL << 32)
+#define PLAT_VIRT_ADDR_SPACE_SIZE		(1ULL << 32)
+#endif
 
 #if CSS_USE_SCMI_SDS_DRIVER
 #define N1SDP_SCMI_PAYLOAD_BASE			0x45400000
@@ -55,8 +70,8 @@
  * PLAT_ARM_MMAP_ENTRIES depends on the number of entries in the
  * plat_arm_mmap array defined for each BL stage.
  */
-#define PLAT_ARM_MMAP_ENTRIES			3
-#define MAX_XLAT_TABLES				4
+#define PLAT_ARM_MMAP_ENTRIES			6
+#define MAX_XLAT_TABLES				7
 
 #define PLATFORM_STACK_SIZE			0x400
 
@@ -73,13 +88,18 @@
 #define PLAT_ARM_G0_IRQ_PROPS(grp)		ARM_G0_IRQ_PROPS(grp)
 
 
-#define N1SDP_DEVICE_BASE			(0x20000000)
-#define N1SDP_DEVICE_SIZE			(0x30000000)
+#define N1SDP_DEVICE_BASE			(0x08000000)
+#define N1SDP_DEVICE_SIZE			(0x48000000)
 #define N1SDP_MAP_DEVICE			MAP_REGION_FLAT(	\
 						N1SDP_DEVICE_BASE,	\
 						N1SDP_DEVICE_SIZE,	\
 						MT_DEVICE | MT_RW | MT_SECURE)
 
+#define ARM_MAP_DRAM1				MAP_REGION_FLAT(	\
+						ARM_DRAM1_BASE,		\
+						ARM_DRAM1_SIZE,		\
+						MT_MEMORY | MT_RW | MT_NS)
+
 /* GIC related constants */
 #define PLAT_ARM_GICD_BASE			0x30000000
 #define PLAT_ARM_GICC_BASE			0x2C000000
diff --git a/plat/arm/board/n1sdp/n1sdp_bl31_setup.c b/plat/arm/board/n1sdp/n1sdp_bl31_setup.c
index 18a0dea..a831b89 100644
--- a/plat/arm/board/n1sdp/n1sdp_bl31_setup.c
+++ b/plat/arm/board/n1sdp/n1sdp_bl31_setup.c
@@ -8,8 +8,35 @@
 
 #include <drivers/arm/css/css_mhu_doorbell.h>
 #include <drivers/arm/css/scmi.h>
+#include <drivers/arm/css/sds.h>
+#include <common/debug.h>
+#include <lib/mmio.h>
+#include <lib/utils.h>
 #include <plat/arm/common/plat_arm.h>
 
+#include "n1sdp_def.h"
+
+/*
+ * Memory information structure stored in SDS.
+ * This structure holds the total DDR memory size which will be
+ * used when zeroing out the entire DDR memory before enabling
+ * the ECC capability in DMCs.
+ */
+struct n1sdp_mem_info {
+	uint32_t ddr_size_gb;
+};
+
+/*
+ * BL33 image information structure stored in SDS.
+ * This structure holds the source & destination addresses and
+ * the size of the BL33 image which will be loaded by BL31.
+ */
+struct n1sdp_bl33_info {
+	uint32_t bl33_src_addr;
+	uint32_t bl33_dst_addr;
+	uint32_t bl33_size;
+};
+
 static scmi_channel_plat_info_t n1sdp_scmi_plat_info = {
 		.scmi_mbx_mem = N1SDP_SCMI_PAYLOAD_BASE,
 		.db_reg_addr = PLAT_CSS_MHU_BASE + CSS_SCMI_MHU_DB_REG_OFF,
@@ -27,3 +54,95 @@
 {
 	return css_scmi_override_pm_ops(ops);
 }
+
+/*
+ * N1SDP platform supports RDIMMs with ECC capability. To use the ECC
+ * capability, the entire DDR memory space has to be zeroed out before
+ * enabling the ECC bits in DMC620. Zeroing out several gigabytes of
+ * memory from SCP is quite time consuming so the following function
+ * is added to zero out the DDR memory from application processor which is
+ * much faster compared to SCP. BL33 binary cannot be copied to DDR memory
+ * before enabling ECC so copy_bl33 function is added to copy BL33 binary
+ * from IOFPGA-DDR3 memory to main DDR4 memory.
+ */
+
+void dmc_ecc_setup(uint32_t ddr_size_gb)
+{
+	uint64_t dram2_size;
+
+	dram2_size = (ddr_size_gb * 1024UL * 1024UL * 1024UL) -
+			ARM_DRAM1_SIZE;
+
+	INFO("Zeroing DDR memories\n");
+	zero_normalmem((void *)ARM_DRAM1_BASE, ARM_DRAM1_SIZE);
+	flush_dcache_range(ARM_DRAM1_BASE, ARM_DRAM1_SIZE);
+	zero_normalmem((void *)ARM_DRAM2_BASE, dram2_size);
+	flush_dcache_range(ARM_DRAM2_BASE, dram2_size);
+
+	INFO("Enabling ECC on DMCs\n");
+	mmio_setbits_32(N1SDP_DMC0_ERR0CTLR0_REG, N1SDP_DMC_ERR0CTLR0_ECC_EN);
+	mmio_setbits_32(N1SDP_DMC1_ERR0CTLR0_REG, N1SDP_DMC_ERR0CTLR0_ECC_EN);
+}
+
+void copy_bl33(uint32_t src, uint32_t dst, uint32_t size)
+{
+	uint32_t i;
+
+	INFO("Copying BL33 to DDR memory\n");
+	for (i = 0; i < size; i = i + 8)
+		mmio_write_64((dst + i), mmio_read_64(src + i));
+
+	for (i = 0; i < size; i = i + 8) {
+		if (mmio_read_64(src + i) != mmio_read_64(dst + i)) {
+			ERROR("Copy failed!\n");
+			panic();
+		}
+	}
+}
+
+void bl31_platform_setup(void)
+{
+	int ret;
+	struct n1sdp_mem_info mem_info;
+	struct n1sdp_bl33_info bl33_info;
+
+	arm_bl31_platform_setup();
+
+	ret = sds_init();
+	if (ret != SDS_OK) {
+		ERROR("SDS initialization failed\n");
+		panic();
+	}
+
+	ret = sds_struct_read(N1SDP_SDS_MEM_INFO_STRUCT_ID,
+				N1SDP_SDS_MEM_INFO_OFFSET,
+				&mem_info,
+				N1SDP_SDS_MEM_INFO_SIZE,
+				SDS_ACCESS_MODE_NON_CACHED);
+	if (ret != SDS_OK) {
+		ERROR("Error getting memory info from SDS\n");
+		panic();
+	}
+	dmc_ecc_setup(mem_info.ddr_size_gb);
+
+	ret = sds_struct_read(N1SDP_SDS_BL33_INFO_STRUCT_ID,
+				N1SDP_SDS_BL33_INFO_OFFSET,
+				&bl33_info,
+				N1SDP_SDS_BL33_INFO_SIZE,
+				SDS_ACCESS_MODE_NON_CACHED);
+	if (ret != SDS_OK) {
+		ERROR("Error getting BL33 info from SDS\n");
+		panic();
+	}
+	copy_bl33(bl33_info.bl33_src_addr,
+			bl33_info.bl33_dst_addr,
+			bl33_info.bl33_size);
+	/*
+	 * Pass DDR memory size info to BL33. This method is followed as
+	 * currently there is no BL1/BL2 involved in boot flow of N1SDP.
+	 * When TBBR is implemented for N1SDP, this method should be removed
+	 * and DDR memory size shoule be passed to BL33 using NT_FW_CONFIG
+	 * passing mechanism.
+	 */
+	mmio_write_32(N1SDP_DDR_MEM_INFO_BASE, mem_info.ddr_size_gb);
+}
diff --git a/plat/arm/board/n1sdp/n1sdp_def.h b/plat/arm/board/n1sdp/n1sdp_def.h
new file mode 100644
index 0000000..b7f7213
--- /dev/null
+++ b/plat/arm/board/n1sdp/n1sdp_def.h
@@ -0,0 +1,38 @@
+/*
+ * Copyright (c) 2018-2019, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef N1SDP_DEF_H
+#define N1SDP_DEF_H
+
+/* Non-secure SRAM MMU mapping */
+#define N1SDP_NS_SRAM_BASE			(0x06000000)
+#define N1SDP_NS_SRAM_SIZE			(0x00010000)
+#define N1SDP_MAP_NS_SRAM			MAP_REGION_FLAT(	\
+						N1SDP_NS_SRAM_BASE,	\
+						N1SDP_NS_SRAM_SIZE,	\
+						MT_DEVICE | MT_RW | MT_SECURE)
+
+/* SDS memory information defines */
+#define N1SDP_SDS_MEM_INFO_STRUCT_ID		8
+#define N1SDP_SDS_MEM_INFO_OFFSET		0
+#define N1SDP_SDS_MEM_INFO_SIZE			4
+
+/* SDS BL33 image information defines */
+#define N1SDP_SDS_BL33_INFO_STRUCT_ID		9
+#define N1SDP_SDS_BL33_INFO_OFFSET		0
+#define N1SDP_SDS_BL33_INFO_SIZE		12
+
+/* DMC ERR0CTLR0 registers */
+#define N1SDP_DMC0_ERR0CTLR0_REG		0x4E000708
+#define N1SDP_DMC1_ERR0CTLR0_REG		0x4E100708
+
+/* DMC ECC enable bit in ERR0CTLR0 register */
+#define N1SDP_DMC_ERR0CTLR0_ECC_EN		0x1
+
+/* Base address of non-secure SRAM where DDR memory size will be filled */
+#define N1SDP_DDR_MEM_INFO_BASE			0x06008000
+
+#endif /* N1SDP_DEF_H */
diff --git a/plat/arm/board/n1sdp/n1sdp_plat.c b/plat/arm/board/n1sdp/n1sdp_plat.c
index f36f9e2..a32ca72 100644
--- a/plat/arm/board/n1sdp/n1sdp_plat.c
+++ b/plat/arm/board/n1sdp/n1sdp_plat.c
@@ -12,6 +12,8 @@
 #include <plat/common/platform.h>
 #include <drivers/arm/sbsa.h>
 
+#include "n1sdp_def.h"
+
 /*
  * Table of regions to map using the MMU.
  * Replace or extend the below regions as required
@@ -20,6 +22,9 @@
 const mmap_region_t plat_arm_mmap[] = {
 	ARM_MAP_SHARED_RAM,
 	N1SDP_MAP_DEVICE,
+	N1SDP_MAP_NS_SRAM,
+	ARM_MAP_DRAM1,
+	ARM_MAP_DRAM2,
 	{0}
 };
 
diff --git a/plat/arm/board/n1sdp/platform.mk b/plat/arm/board/n1sdp/platform.mk
index d0c34c8..986bd70 100644
--- a/plat/arm/board/n1sdp/platform.mk
+++ b/plat/arm/board/n1sdp/platform.mk
@@ -32,7 +32,8 @@
 				${N1SDP_GIC_SOURCES}			\
 				${N1SDP_BASE}/n1sdp_bl31_setup.c	        \
 				${N1SDP_BASE}/n1sdp_topology.c	        \
-				${N1SDP_BASE}/n1sdp_security.c
+				${N1SDP_BASE}/n1sdp_security.c		\
+				drivers/arm/css/sds/sds.c
 
 
 # TF-A not required to load the SCP Images
diff --git a/plat/arm/board/rde1edge/include/platform_def.h b/plat/arm/board/rde1edge/include/platform_def.h
index 3b3ade0..c62cda8 100644
--- a/plat/arm/board/rde1edge/include/platform_def.h
+++ b/plat/arm/board/rde1edge/include/platform_def.h
@@ -26,4 +26,15 @@
 
 #define CSS_SYSTEM_PWR_DMN_LVL		ARM_PWR_LVL3
 
+/*
+ * Physical and virtual address space limits for MMU in AARCH64 & AARCH32 modes
+ */
+#ifndef AARCH32
+#define PLAT_PHY_ADDR_SPACE_SIZE	(1ULL << 36)
+#define PLAT_VIRT_ADDR_SPACE_SIZE	(1ULL << 36)
+#else
+#define PLAT_PHY_ADDR_SPACE_SIZE	(1ULL << 32)
+#define PLAT_VIRT_ADDR_SPACE_SIZE	(1ULL << 32)
+#endif
+
 #endif /* PLATFORM_DEF_H */
diff --git a/plat/arm/board/rdn1edge/include/platform_def.h b/plat/arm/board/rdn1edge/include/platform_def.h
index 8480c08..2c7b8bd 100644
--- a/plat/arm/board/rdn1edge/include/platform_def.h
+++ b/plat/arm/board/rdn1edge/include/platform_def.h
@@ -27,4 +27,15 @@
 
 #define PLAT_MAX_PWR_LVL		ARM_PWR_LVL1
 
+/*
+ * Physical and virtual address space limits for MMU in AARCH64 & AARCH32 modes
+ */
+#ifndef AARCH32
+#define PLAT_PHY_ADDR_SPACE_SIZE	(1ULL << 36)
+#define PLAT_VIRT_ADDR_SPACE_SIZE	(1ULL << 36)
+#else
+#define PLAT_PHY_ADDR_SPACE_SIZE	(1ULL << 32)
+#define PLAT_VIRT_ADDR_SPACE_SIZE	(1ULL << 32)
+#endif
+
 #endif /* PLATFORM_DEF_H */
diff --git a/plat/arm/board/sgi575/include/platform_def.h b/plat/arm/board/sgi575/include/platform_def.h
index ec51c9e..883403b 100644
--- a/plat/arm/board/sgi575/include/platform_def.h
+++ b/plat/arm/board/sgi575/include/platform_def.h
@@ -27,4 +27,15 @@
 
 #define PLAT_MAX_PWR_LVL		ARM_PWR_LVL1
 
+/*
+ * Physical and virtual address space limits for MMU in AARCH64 & AARCH32 modes
+ */
+#ifndef AARCH32
+#define PLAT_PHY_ADDR_SPACE_SIZE	(1ULL << 36)
+#define PLAT_VIRT_ADDR_SPACE_SIZE	(1ULL << 36)
+#else
+#define PLAT_PHY_ADDR_SPACE_SIZE	(1ULL << 32)
+#define PLAT_VIRT_ADDR_SPACE_SIZE	(1ULL << 32)
+#endif
+
 #endif /* PLATFORM_DEF_H */
diff --git a/plat/arm/board/sgm775/include/platform_def.h b/plat/arm/board/sgm775/include/platform_def.h
index 8a3431b..3e1fdd1 100644
--- a/plat/arm/board/sgm775/include/platform_def.h
+++ b/plat/arm/board/sgm775/include/platform_def.h
@@ -12,4 +12,15 @@
 #define PLAT_MAX_CPUS_PER_CLUSTER	8
 #define PLAT_MAX_PE_PER_CPU		1
 
+/*
+ * Physical and virtual address space limits for MMU in AARCH64 & AARCH32 modes
+ */
+#ifndef AARCH32
+#define PLAT_PHY_ADDR_SPACE_SIZE	(1ULL << 36)
+#define PLAT_VIRT_ADDR_SPACE_SIZE	(1ULL << 36)
+#else
+#define PLAT_PHY_ADDR_SPACE_SIZE	(1ULL << 32)
+#define PLAT_VIRT_ADDR_SPACE_SIZE	(1ULL << 32)
+#endif
+
 #endif /* PLATFORM_DEF_H */