refactor(sgi): rename "CSS_SGI"" macro prefixes to "NRD"

As of now, several internal macros utilize "CSS_SGI" as their prefix.
Given the change to neoverse_rd, and the subsequent migration out of the
css directory, the prefix "CSS_SGI" is no longer appropriate.
Therefore, update the macro prefixes to "NRD" for consistency and
clarity.

Signed-off-by: Rohit Mathew <Rohit.Mathew@arm.com>
Change-Id: I3d1a9dba3e83f6e107379fc5bcf8256cc93d8c3d
diff --git a/plat/arm/board/neoverse_rd/common/arch/aarch64/nrd_helper.S b/plat/arm/board/neoverse_rd/common/arch/aarch64/nrd_helper.S
index 14c3a7c..d250f3b 100644
--- a/plat/arm/board/neoverse_rd/common/arch/aarch64/nrd_helper.S
+++ b/plat/arm/board/neoverse_rd/common/arch/aarch64/nrd_helper.S
@@ -21,15 +21,15 @@
 	 *
 	 * Helper function to calculate the core position.
 	 * (ChipId * PLAT_ARM_CLUSTER_COUNT *
-	 *  CSS_SGI_MAX_CPUS_PER_CLUSTER * CSS_SGI_MAX_PE_PER_CPU) +
-	 * (ClusterId * CSS_SGI_MAX_CPUS_PER_CLUSTER * CSS_SGI_MAX_PE_PER_CPU) +
-	 * (CPUId * CSS_SGI_MAX_PE_PER_CPU) +
+	 *  NRD_MAX_CPUS_PER_CLUSTER * NRD_MAX_PE_PER_CPU) +
+	 * (ClusterId * NRD_MAX_CPUS_PER_CLUSTER * NRD_MAX_PE_PER_CPU) +
+	 * (CPUId * NRD_MAX_PE_PER_CPU) +
 	 * ThreadId
 	 *
 	 * which can be simplified as:
 	 *
 	 * ((((ChipId * PLAT_ARM_CLUSTER_COUNT) + ClusterId) *
-	 *   CSS_SGI_MAX_CPUS_PER_CLUSTER) + CPUId) * CSS_SGI_MAX_PE_PER_CPU +
+	 *   NRD_MAX_CPUS_PER_CLUSTER) + CPUId) * NRD_MAX_PE_PER_CPU +
 	 * ThreadId
 	 * ------------------------------------------------------
 	 */
@@ -51,9 +51,9 @@
 	/* Compute linear position */
 	mov     x4, #PLAT_ARM_CLUSTER_COUNT
 	madd    x2, x3, x4, x2
-	mov     x4, #CSS_SGI_MAX_CPUS_PER_CLUSTER
+	mov     x4, #NRD_MAX_CPUS_PER_CLUSTER
 	madd    x1, x2, x4, x1
-	mov     x4, #CSS_SGI_MAX_PE_PER_CPU
+	mov     x4, #NRD_MAX_PE_PER_CPU
 	madd    x0, x1, x4, x0
 	ret
 endfunc plat_arm_calc_core_pos
diff --git a/plat/arm/board/neoverse_rd/common/include/nrd_base_platform_def.h b/plat/arm/board/neoverse_rd/common/include/nrd_base_platform_def.h
index b303757..5a68960 100644
--- a/plat/arm/board/neoverse_rd/common/include/nrd_base_platform_def.h
+++ b/plat/arm/board/neoverse_rd/common/include/nrd_base_platform_def.h
@@ -16,14 +16,14 @@
 
 #define PLATFORM_CORE_COUNT		(NRD_CHIP_COUNT *		\
 					PLAT_ARM_CLUSTER_COUNT *	\
-					CSS_SGI_MAX_CPUS_PER_CLUSTER *	\
-					CSS_SGI_MAX_PE_PER_CPU)
+					NRD_MAX_CPUS_PER_CLUSTER *	\
+					NRD_MAX_PE_PER_CPU)
 
 #define PLAT_ARM_TRUSTED_SRAM_SIZE	0x00080000	/* 512 KB */
 
 /* Remote chip address offset */
-#define CSS_SGI_REMOTE_CHIP_MEM_OFFSET(n)	\
-		((ULL(1) << CSS_SGI_ADDR_BITS_PER_CHIP) * (n))
+#define NRD_REMOTE_CHIP_MEM_OFFSET(n)	\
+		((ULL(1) << NRD_ADDR_BITS_PER_CHIP) * (n))
 
 /*
  * PLAT_ARM_MMAP_ENTRIES depends on the number of entries in the
@@ -100,13 +100,13 @@
 /*
  * Since BL31 NOBITS overlays BL2 and BL1-RW, PLAT_ARM_MAX_BL31_SIZE is
  * calculated using the current BL31 PROGBITS debug size plus the sizes of BL2
- * and BL1-RW. CSS_SGI_BL31_SIZE - is tuned with respect to the actual BL31
+ * and BL1-RW. NRD_BL31_SIZE - is tuned with respect to the actual BL31
  * PROGBITS size which is around 64-68KB at the time this change is being made.
  * A buffer of ~35KB is added to account for future expansion of the image,
  * making it a total of 100KB.
  */
-#define CSS_SGI_BL31_SIZE		(116 * 1024)	/* 116 KB */
-#define PLAT_ARM_MAX_BL31_SIZE		(CSS_SGI_BL31_SIZE +		\
+#define NRD_BL31_SIZE			(116 * 1024)	/* 116 KB */
+#define PLAT_ARM_MAX_BL31_SIZE		(NRD_BL31_SIZE +		\
 						PLAT_ARM_MAX_BL2_SIZE +	\
 						PLAT_ARM_MAX_BL1_RW_SIZE)
 
@@ -167,32 +167,32 @@
 #define PLAT_ARM_G1S_IRQ_PROPS(grp)	CSS_G1S_IRQ_PROPS(grp)
 #define PLAT_ARM_G0_IRQ_PROPS(grp)	ARM_G0_IRQ_PROPS(grp)
 
-#define CSS_SGI_DEVICE_BASE	(0x20000000)
-#define CSS_SGI_DEVICE_SIZE	(0x20000000)
-#define CSS_SGI_MAP_DEVICE	MAP_REGION_FLAT(		\
-					CSS_SGI_DEVICE_BASE,	\
-					CSS_SGI_DEVICE_SIZE,	\
+#define NRD_DEVICE_BASE	(0x20000000)
+#define NRD_DEVICE_SIZE	(0x20000000)
+#define NRD_MAP_DEVICE	MAP_REGION_FLAT(		\
+					NRD_DEVICE_BASE,	\
+					NRD_DEVICE_SIZE,	\
 					MT_DEVICE | MT_RW | MT_SECURE)
 
 #define ARM_MAP_SHARED_RAM_REMOTE_CHIP(n)					\
 			MAP_REGION_FLAT(					\
-				CSS_SGI_REMOTE_CHIP_MEM_OFFSET(n) +		\
+				NRD_REMOTE_CHIP_MEM_OFFSET(n) +		\
 				ARM_SHARED_RAM_BASE,				\
 				ARM_SHARED_RAM_SIZE,				\
 				MT_NON_CACHEABLE | MT_RW | MT_SECURE		\
 			)
 
-#define CSS_SGI_MAP_DEVICE_REMOTE_CHIP(n)					\
+#define NRD_MAP_DEVICE_REMOTE_CHIP(n)					\
 			MAP_REGION_FLAT(					\
-				CSS_SGI_REMOTE_CHIP_MEM_OFFSET(n) +		\
-				CSS_SGI_DEVICE_BASE,				\
-				CSS_SGI_DEVICE_SIZE,				\
+				NRD_REMOTE_CHIP_MEM_OFFSET(n) +		\
+				NRD_DEVICE_BASE,				\
+				NRD_DEVICE_SIZE,				\
 				MT_DEVICE | MT_RW | MT_SECURE			\
 			)
 
 #define SOC_CSS_MAP_DEVICE_REMOTE_CHIP(n)					\
 			MAP_REGION_FLAT(					\
-				CSS_SGI_REMOTE_CHIP_MEM_OFFSET(n) +		\
+				NRD_REMOTE_CHIP_MEM_OFFSET(n) +		\
 				SOC_CSS_DEVICE_BASE,				\
 				SOC_CSS_DEVICE_SIZE,				\
 				MT_DEVICE | MT_RW | MT_SECURE			\
@@ -215,13 +215,13 @@
  * CPER buffer memory of 128KB is reserved and it is placed adjacent to the
  * memory shared between EL3 and S-EL0.
  */
-#define CSS_SGI_SP_CPER_BUF_BASE	(PLAT_SP_IMAGE_NS_BUF_BASE + \
+#define NRD_SP_CPER_BUF_BASE	(PLAT_SP_IMAGE_NS_BUF_BASE + \
 					 PLAT_SP_IMAGE_NS_BUF_SIZE)
-#define CSS_SGI_SP_CPER_BUF_SIZE	ULL(0x10000)
-#define CSS_SGI_SP_CPER_BUF_MMAP	MAP_REGION2(			       \
-						CSS_SGI_SP_CPER_BUF_BASE,      \
-						CSS_SGI_SP_CPER_BUF_BASE,      \
-						CSS_SGI_SP_CPER_BUF_SIZE,      \
+#define NRD_SP_CPER_BUF_SIZE	ULL(0x10000)
+#define NRD_SP_CPER_BUF_MMAP	MAP_REGION2(			       \
+						NRD_SP_CPER_BUF_BASE,      \
+						NRD_SP_CPER_BUF_BASE,      \
+						NRD_SP_CPER_BUF_SIZE,      \
 						MT_RW_DATA | MT_NS | MT_USER,  \
 						PAGE_SIZE)
 
@@ -231,7 +231,7 @@
  */
 #define PLAT_ARM_SP_IMAGE_STACK_BASE		(PLAT_SP_IMAGE_NS_BUF_BASE +   \
 						 PLAT_SP_IMAGE_NS_BUF_SIZE +   \
-						 CSS_SGI_SP_CPER_BUF_SIZE)
+						 NRD_SP_CPER_BUF_SIZE)
 #elif (SPM_MM || (SPMC_AT_EL3 && SPMC_AT_EL3_SEL0_SP))
 /*
  * Secure partition stack follows right after the memory region that is shared
@@ -277,11 +277,11 @@
  * to multi-chip platforms.
  */
 #define SGI_PLAT_TZC_NS_REMOTE_REGIONS_DEF(n)				\
-	{CSS_SGI_REMOTE_CHIP_MEM_OFFSET(n) + ARM_DRAM1_BASE,		\
-		CSS_SGI_REMOTE_CHIP_MEM_OFFSET(n) + ARM_DRAM1_END,	\
+	{NRD_REMOTE_CHIP_MEM_OFFSET(n) + ARM_DRAM1_BASE,		\
+		NRD_REMOTE_CHIP_MEM_OFFSET(n) + ARM_DRAM1_END,	\
 		ARM_TZC_NS_DRAM_S_ACCESS, PLAT_ARM_TZC_NS_DEV_ACCESS},	\
-	{CSS_SGI_REMOTE_CHIP_MEM_OFFSET(n) + ARM_DRAM2_BASE,		\
-		CSS_SGI_REMOTE_CHIP_MEM_OFFSET(n) + ARM_DRAM2_END,	\
+	{NRD_REMOTE_CHIP_MEM_OFFSET(n) + ARM_DRAM2_BASE,		\
+		NRD_REMOTE_CHIP_MEM_OFFSET(n) + ARM_DRAM2_END,	\
 		ARM_TZC_NS_DRAM_S_ACCESS, PLAT_ARM_TZC_NS_DEV_ACCESS}
 
 #if SPM_MM
diff --git a/plat/arm/board/neoverse_rd/common/include/nrd_dmc620_tzc_regions.h b/plat/arm/board/neoverse_rd/common/include/nrd_dmc620_tzc_regions.h
index a38c759..c63d750 100644
--- a/plat/arm/board/neoverse_rd/common/include/nrd_dmc620_tzc_regions.h
+++ b/plat/arm/board/neoverse_rd/common/include/nrd_dmc620_tzc_regions.h
@@ -10,7 +10,7 @@
 #include <drivers/arm/tzc_dmc620.h>
 
 #if SPM_MM
-#define CSS_SGI_DMC620_TZC_REGIONS_DEF				\
+#define NRD_DMC620_TZC_REGIONS_DEF				\
 	{							\
 		.region_base = ARM_AP_TZC_DRAM1_BASE,		\
 		.region_top = PLAT_SP_IMAGE_NS_BUF_BASE - 1,	\
@@ -25,7 +25,7 @@
 		.sec_attr = TZC_DMC620_REGION_S_RDWR		\
 	}
 #else
-#define CSS_SGI_DMC620_TZC_REGIONS_DEF				\
+#define NRD_DMC620_TZC_REGIONS_DEF				\
 	{							\
 		.region_base = ARM_AP_TZC_DRAM1_BASE,		\
 		.region_top = ARM_AP_TZC_DRAM1_END,		\
diff --git a/plat/arm/board/neoverse_rd/common/include/nrd_soc_css_def_v2.h b/plat/arm/board/neoverse_rd/common/include/nrd_soc_css_def_v2.h
index 81cbdf4..c4e377b 100644
--- a/plat/arm/board/neoverse_rd/common/include/nrd_soc_css_def_v2.h
+++ b/plat/arm/board/neoverse_rd/common/include/nrd_soc_css_def_v2.h
@@ -92,7 +92,7 @@
 
 #define SOC_MEMCNTRL_MAP_DEVICE_REMOTE_CHIP(n)					\
 		MAP_REGION_FLAT(						\
-			CSS_SGI_REMOTE_CHIP_MEM_OFFSET(n) + SOC_MEMCNTRL_BASE,	\
+			NRD_REMOTE_CHIP_MEM_OFFSET(n) + SOC_MEMCNTRL_BASE,	\
 			SOC_MEMCNTRL_SIZE,					\
 			MT_DEVICE | MT_RW | MT_SECURE)
 
diff --git a/plat/arm/board/neoverse_rd/common/nrd_bl31_setup.c b/plat/arm/board/neoverse_rd/common/nrd_bl31_setup.c
index 0c6a162..a22c799 100644
--- a/plat/arm/board/neoverse_rd/common/nrd_bl31_setup.c
+++ b/plat/arm/board/neoverse_rd/common/nrd_bl31_setup.c
@@ -41,9 +41,9 @@
 	#if (NRD_CHIP_COUNT > 1)
 	{
 		.scmi_mbx_mem = CSS_SCMI_PAYLOAD_BASE +
-			CSS_SGI_REMOTE_CHIP_MEM_OFFSET(1),
+			NRD_REMOTE_CHIP_MEM_OFFSET(1),
 		.db_reg_addr = PLAT_CSS_MHU_BASE
-			+ CSS_SGI_REMOTE_CHIP_MEM_OFFSET(1) + SENDER_REG_SET(0),
+			+ NRD_REMOTE_CHIP_MEM_OFFSET(1) + SENDER_REG_SET(0),
 		.db_preserve_mask = 0xfffffffe,
 		.db_modify_mask = 0x1,
 		.ring_doorbell = &mhuv2_ring_doorbell,
@@ -52,9 +52,9 @@
 	#if (NRD_CHIP_COUNT > 2)
 	{
 		.scmi_mbx_mem = CSS_SCMI_PAYLOAD_BASE +
-			CSS_SGI_REMOTE_CHIP_MEM_OFFSET(2),
+			NRD_REMOTE_CHIP_MEM_OFFSET(2),
 		.db_reg_addr = PLAT_CSS_MHU_BASE +
-			CSS_SGI_REMOTE_CHIP_MEM_OFFSET(2) + SENDER_REG_SET(0),
+			NRD_REMOTE_CHIP_MEM_OFFSET(2) + SENDER_REG_SET(0),
 		.db_preserve_mask = 0xfffffffe,
 		.db_modify_mask = 0x1,
 		.ring_doorbell = &mhuv2_ring_doorbell,
@@ -63,9 +63,9 @@
 	#if (NRD_CHIP_COUNT > 3)
 	{
 		.scmi_mbx_mem = CSS_SCMI_PAYLOAD_BASE +
-			CSS_SGI_REMOTE_CHIP_MEM_OFFSET(3),
+			NRD_REMOTE_CHIP_MEM_OFFSET(3),
 		.db_reg_addr = PLAT_CSS_MHU_BASE +
-			CSS_SGI_REMOTE_CHIP_MEM_OFFSET(3) + SENDER_REG_SET(0),
+			NRD_REMOTE_CHIP_MEM_OFFSET(3) + SENDER_REG_SET(0),
 		.db_preserve_mask = 0xfffffffe,
 		.db_modify_mask = 0x1,
 		.ring_doorbell = &mhuv2_ring_doorbell,
diff --git a/plat/arm/board/neoverse_rd/common/nrd_plat.c b/plat/arm/board/neoverse_rd/common/nrd_plat.c
index 692139c..f2fd215 100644
--- a/plat/arm/board/neoverse_rd/common/nrd_plat.c
+++ b/plat/arm/board/neoverse_rd/common/nrd_plat.c
@@ -37,7 +37,7 @@
 const mmap_region_t plat_arm_mmap[] = {
 	ARM_MAP_SHARED_RAM,
 	SGI_MAP_FLASH0_RO,
-	CSS_SGI_MAP_DEVICE,
+	NRD_MAP_DEVICE,
 	SOC_CSS_MAP_DEVICE,
 	{0}
 };
@@ -49,17 +49,17 @@
 #ifdef PLAT_ARM_MEM_PROT_ADDR
 	ARM_V2M_MAP_MEM_PROTECT,
 #endif
-	CSS_SGI_MAP_DEVICE,
+	NRD_MAP_DEVICE,
 	SOC_CSS_MAP_DEVICE,
 	ARM_MAP_NS_DRAM1,
 #if NRD_CHIP_COUNT > 1
-	CSS_SGI_MAP_DEVICE_REMOTE_CHIP(1),
+	NRD_MAP_DEVICE_REMOTE_CHIP(1),
 #endif
 #if NRD_CHIP_COUNT > 2
-	CSS_SGI_MAP_DEVICE_REMOTE_CHIP(2),
+	NRD_MAP_DEVICE_REMOTE_CHIP(2),
 #endif
 #if NRD_CHIP_COUNT > 3
-	CSS_SGI_MAP_DEVICE_REMOTE_CHIP(3),
+	NRD_MAP_DEVICE_REMOTE_CHIP(3),
 #endif
 #if ARM_BL31_IN_DRAM
 	ARM_MAP_BL31_SEC_DRAM,
@@ -77,7 +77,7 @@
 const mmap_region_t plat_arm_mmap[] = {
 	ARM_MAP_SHARED_RAM,
 	V2M_MAP_IOFPGA,
-	CSS_SGI_MAP_DEVICE,
+	NRD_MAP_DEVICE,
 #ifdef PLAT_ARM_MEM_PROT_ADDR
 	ARM_V2M_MAP_MEM_PROTECT,
 #endif
@@ -97,7 +97,7 @@
 	ARM_SP_IMAGE_MMAP,
 	ARM_SP_IMAGE_NS_BUF_MMAP,
 #if ENABLE_FEAT_RAS && FFH_SUPPORT
-	CSS_SGI_SP_CPER_BUF_MMAP,
+	NRD_SP_CPER_BUF_MMAP,
 #endif
 	ARM_SP_IMAGE_RW_MMAP,
 	ARM_SPM_BUF_EL0_MMAP,
diff --git a/plat/arm/board/neoverse_rd/common/nrd_plat_v2.c b/plat/arm/board/neoverse_rd/common/nrd_plat_v2.c
index c07117e..b39c8f0 100644
--- a/plat/arm/board/neoverse_rd/common/nrd_plat_v2.c
+++ b/plat/arm/board/neoverse_rd/common/nrd_plat_v2.c
@@ -25,7 +25,7 @@
 const mmap_region_t plat_arm_mmap[] = {
 	ARM_MAP_SHARED_RAM,
 	SGI_MAP_FLASH0_RO,
-	CSS_SGI_MAP_DEVICE,
+	NRD_MAP_DEVICE,
 	SOC_PLATFORM_PERIPH_MAP_DEVICE,
 	SOC_SYSTEM_PERIPH_MAP_DEVICE,
 	{0}
@@ -39,7 +39,7 @@
 #ifdef PLAT_ARM_MEM_PROT_ADDR
 	ARM_V2M_MAP_MEM_PROTECT,
 #endif
-	CSS_SGI_MAP_DEVICE,
+	NRD_MAP_DEVICE,
 	SOC_MEMCNTRL_MAP_DEVICE,
 	SOC_PLATFORM_PERIPH_MAP_DEVICE,
 	SOC_SYSTEM_PERIPH_MAP_DEVICE,
@@ -72,7 +72,7 @@
 #ifdef PLAT_ARM_MEM_PROT_ADDR
 	ARM_V2M_MAP_MEM_PROTECT,
 #endif
-	CSS_SGI_MAP_DEVICE,
+	NRD_MAP_DEVICE,
 	SOC_PLATFORM_PERIPH_MAP_DEVICE,
 	SOC_SYSTEM_PERIPH_MAP_DEVICE,
 #if SPM_MM || (SPMC_AT_EL3 && SPMC_AT_EL3_SEL0_SP)
@@ -90,7 +90,7 @@
 	ARM_SP_IMAGE_MMAP,
 	ARM_SP_IMAGE_NS_BUF_MMAP,
 #if ENABLE_FEAT_RAS && FFH_SUPPORT
-	CSS_SGI_SP_CPER_BUF_MMAP,
+	NRD_SP_CPER_BUF_MMAP,
 #endif
 	ARM_SP_IMAGE_RW_MMAP,
 	ARM_SPM_BUF_EL0_MMAP,
diff --git a/plat/arm/board/neoverse_rd/common/nrd_topology.c b/plat/arm/board/neoverse_rd/common/nrd_topology.c
index 40be049..9113bd8 100644
--- a/plat/arm/board/neoverse_rd/common/nrd_topology.c
+++ b/plat/arm/board/neoverse_rd/common/nrd_topology.c
@@ -15,7 +15,7 @@
  ******************************************************************************/
 unsigned int plat_arm_get_cluster_core_count(u_register_t mpidr)
 {
-	return CSS_SGI_MAX_CPUS_PER_CLUSTER;
+	return NRD_MAX_CPUS_PER_CLUSTER;
 }
 
 #if ARM_PLAT_MT
@@ -24,6 +24,6 @@
  *****************************************************************************/
 unsigned int plat_arm_get_cpu_pe_count(u_register_t mpidr)
 {
-	return CSS_SGI_MAX_PE_PER_CPU;
+	return NRD_MAX_PE_PER_CPU;
 }
 #endif
diff --git a/plat/arm/board/neoverse_rd/platform/rdn1edge/include/platform_def.h b/plat/arm/board/neoverse_rd/platform/rdn1edge/include/platform_def.h
index aa8702f..83590eb 100644
--- a/plat/arm/board/neoverse_rd/platform/rdn1edge/include/platform_def.h
+++ b/plat/arm/board/neoverse_rd/platform/rdn1edge/include/platform_def.h
@@ -13,8 +13,8 @@
 #include <nrd_soc_platform_def.h>
 
 #define PLAT_ARM_CLUSTER_COUNT		U(2)
-#define CSS_SGI_MAX_CPUS_PER_CLUSTER	U(4)
-#define CSS_SGI_MAX_PE_PER_CPU		U(1)
+#define NRD_MAX_CPUS_PER_CLUSTER	U(4)
+#define NRD_MAX_PE_PER_CPU		U(1)
 
 #define PLAT_CSS_MHU_BASE		UL(0x45400000)
 
@@ -31,15 +31,15 @@
 #define PLAT_ARM_MEM_PROTEC_VA_FRAME	UL(0xc0000000)
 
 /* Maximum number of address bits used per chip */
-#define CSS_SGI_ADDR_BITS_PER_CHIP	U(42)
+#define NRD_ADDR_BITS_PER_CHIP	U(42)
 
 /*
  * Physical and virtual address space limits for MMU in AARCH64 & AARCH32 modes
  */
 #ifdef __aarch64__
-#define PLAT_PHY_ADDR_SPACE_SIZE	CSS_SGI_REMOTE_CHIP_MEM_OFFSET( \
+#define PLAT_PHY_ADDR_SPACE_SIZE	NRD_REMOTE_CHIP_MEM_OFFSET( \
 						NRD_CHIP_COUNT)
-#define PLAT_VIRT_ADDR_SPACE_SIZE	CSS_SGI_REMOTE_CHIP_MEM_OFFSET( \
+#define PLAT_VIRT_ADDR_SPACE_SIZE	NRD_REMOTE_CHIP_MEM_OFFSET( \
 						NRD_CHIP_COUNT)
 #else
 #define PLAT_PHY_ADDR_SPACE_SIZE	(1ULL << 32)
diff --git a/plat/arm/board/neoverse_rd/platform/rdn1edge/rdn1edge_plat.c b/plat/arm/board/neoverse_rd/platform/rdn1edge/rdn1edge_plat.c
index 918728a..0c6756c 100644
--- a/plat/arm/board/neoverse_rd/platform/rdn1edge/rdn1edge_plat.c
+++ b/plat/arm/board/neoverse_rd/platform/rdn1edge/rdn1edge_plat.c
@@ -15,7 +15,7 @@
 #if defined(IMAGE_BL31)
 static const mmap_region_t rdn1edge_dynamic_mmap[] = {
 	ARM_MAP_SHARED_RAM_REMOTE_CHIP(1),
-	CSS_SGI_MAP_DEVICE_REMOTE_CHIP(1),
+	NRD_MAP_DEVICE_REMOTE_CHIP(1),
 	SOC_CSS_MAP_DEVICE_REMOTE_CHIP(1)
 };
 
@@ -25,7 +25,7 @@
 	.chip_count = NRD_CHIP_COUNT,
 	.chip_addrs = {
 		PLAT_ARM_GICD_BASE >> 16,
-		(PLAT_ARM_GICD_BASE + CSS_SGI_REMOTE_CHIP_MEM_OFFSET(1)) >> 16
+		(PLAT_ARM_GICD_BASE + NRD_REMOTE_CHIP_MEM_OFFSET(1)) >> 16
 	},
 	.spi_ids = {
 		{PLAT_ARM_GICD_BASE, RDN1E1_CHIP0_SPI_START,
@@ -37,7 +37,7 @@
 static uintptr_t rdn1e1_multichip_gicr_frames[] = {
 	PLAT_ARM_GICR_BASE,				/* Chip 0's GICR Base */
 	PLAT_ARM_GICR_BASE +
-		CSS_SGI_REMOTE_CHIP_MEM_OFFSET(1),	/* Chip 1's GICR BASE */
+		NRD_REMOTE_CHIP_MEM_OFFSET(1),		/* Chip 1's GICR BASE */
 	UL(0)						/* Zero Termination */
 };
 #endif /* IMAGE_BL31 */
diff --git a/plat/arm/board/neoverse_rd/platform/rdn1edge/rdn1edge_security.c b/plat/arm/board/neoverse_rd/platform/rdn1edge/rdn1edge_security.c
index 959daea..f3f6238 100644
--- a/plat/arm/board/neoverse_rd/platform/rdn1edge/rdn1edge_security.c
+++ b/plat/arm/board/neoverse_rd/platform/rdn1edge/rdn1edge_security.c
@@ -20,7 +20,7 @@
 };
 
 static const tzc_dmc620_acc_addr_data_t rdn1edge_acc_addr_data[] = {
-	CSS_SGI_DMC620_TZC_REGIONS_DEF
+	NRD_DMC620_TZC_REGIONS_DEF
 };
 
 static const tzc_dmc620_config_data_t rdn1edge_plat_config_data = {
diff --git a/plat/arm/board/neoverse_rd/platform/rdn1edge/rdn1edge_topology.c b/plat/arm/board/neoverse_rd/platform/rdn1edge/rdn1edge_topology.c
index 2e81536..133eb16 100644
--- a/plat/arm/board/neoverse_rd/platform/rdn1edge/rdn1edge_topology.c
+++ b/plat/arm/board/neoverse_rd/platform/rdn1edge/rdn1edge_topology.c
@@ -12,11 +12,11 @@
  ******************************************************************************/
 static const unsigned char rdn1edge_pd_tree_desc[] = {
 	(PLAT_ARM_CLUSTER_COUNT) * (NRD_CHIP_COUNT),
-	CSS_SGI_MAX_CPUS_PER_CLUSTER,
-	CSS_SGI_MAX_CPUS_PER_CLUSTER,
+	NRD_MAX_CPUS_PER_CLUSTER,
+	NRD_MAX_CPUS_PER_CLUSTER,
 #if (NRD_CHIP_COUNT > 1)
-	CSS_SGI_MAX_CPUS_PER_CLUSTER,
-	CSS_SGI_MAX_CPUS_PER_CLUSTER
+	NRD_MAX_CPUS_PER_CLUSTER,
+	NRD_MAX_CPUS_PER_CLUSTER
 #endif
 };
 
diff --git a/plat/arm/board/neoverse_rd/platform/rdn2/include/platform_def.h b/plat/arm/board/neoverse_rd/platform/rdn2/include/platform_def.h
index 3892c66..840ea4a 100644
--- a/plat/arm/board/neoverse_rd/platform/rdn2/include/platform_def.h
+++ b/plat/arm/board/neoverse_rd/platform/rdn2/include/platform_def.h
@@ -19,8 +19,8 @@
 #define PLAT_ARM_CLUSTER_COUNT		U(16)
 #endif
 
-#define CSS_SGI_MAX_CPUS_PER_CLUSTER	U(1)
-#define CSS_SGI_MAX_PE_PER_CPU		U(1)
+#define NRD_MAX_CPUS_PER_CLUSTER	U(1)
+#define NRD_MAX_PE_PER_CPU		U(1)
 
 #define PLAT_CSS_MHU_BASE		UL(0x2A920000)
 #define PLAT_MHUV2_BASE			PLAT_CSS_MHU_BASE
@@ -69,14 +69,14 @@
  */
 #ifdef __aarch64__
 #if (NRD_PLATFORM_VARIANT == 2)
-#define CSS_SGI_ADDR_BITS_PER_CHIP	U(46)	/* 64TB */
+#define NRD_ADDR_BITS_PER_CHIP	U(46)	/* 64TB */
 #else
-#define CSS_SGI_ADDR_BITS_PER_CHIP	U(42)	/* 4TB */
+#define NRD_ADDR_BITS_PER_CHIP	U(42)	/* 4TB */
 #endif
 
-#define PLAT_PHY_ADDR_SPACE_SIZE	CSS_SGI_REMOTE_CHIP_MEM_OFFSET( \
+#define PLAT_PHY_ADDR_SPACE_SIZE	NRD_REMOTE_CHIP_MEM_OFFSET( \
 						NRD_CHIP_COUNT)
-#define PLAT_VIRT_ADDR_SPACE_SIZE	CSS_SGI_REMOTE_CHIP_MEM_OFFSET( \
+#define PLAT_VIRT_ADDR_SPACE_SIZE	NRD_REMOTE_CHIP_MEM_OFFSET( \
 						NRD_CHIP_COUNT)
 #else
 #define PLAT_PHY_ADDR_SPACE_SIZE	(1ULL << 32)
diff --git a/plat/arm/board/neoverse_rd/platform/rdn2/rdn2_plat.c b/plat/arm/board/neoverse_rd/platform/rdn2/rdn2_plat.c
index 24072ca..0051049 100644
--- a/plat/arm/board/neoverse_rd/platform/rdn2/rdn2_plat.c
+++ b/plat/arm/board/neoverse_rd/platform/rdn2/rdn2_plat.c
@@ -19,15 +19,15 @@
 static const mmap_region_t rdn2mc_dynamic_mmap[] = {
 #if NRD_CHIP_COUNT > 1
 	ARM_MAP_SHARED_RAM_REMOTE_CHIP(1),
-	CSS_SGI_MAP_DEVICE_REMOTE_CHIP(1),
+	NRD_MAP_DEVICE_REMOTE_CHIP(1),
 #endif
 #if NRD_CHIP_COUNT > 2
 	ARM_MAP_SHARED_RAM_REMOTE_CHIP(2),
-	CSS_SGI_MAP_DEVICE_REMOTE_CHIP(2),
+	NRD_MAP_DEVICE_REMOTE_CHIP(2),
 #endif
 #if NRD_CHIP_COUNT > 3
 	ARM_MAP_SHARED_RAM_REMOTE_CHIP(3),
-	CSS_SGI_MAP_DEVICE_REMOTE_CHIP(3),
+	NRD_MAP_DEVICE_REMOTE_CHIP(3),
 #endif
 };
 #endif
@@ -40,13 +40,13 @@
 	.chip_addrs = {
 		PLAT_ARM_GICD_BASE >> 16,
 #if NRD_CHIP_COUNT > 1
-		(PLAT_ARM_GICD_BASE + CSS_SGI_REMOTE_CHIP_MEM_OFFSET(1)) >> 16,
+		(PLAT_ARM_GICD_BASE + NRD_REMOTE_CHIP_MEM_OFFSET(1)) >> 16,
 #endif
 #if NRD_CHIP_COUNT > 2
-		(PLAT_ARM_GICD_BASE + CSS_SGI_REMOTE_CHIP_MEM_OFFSET(2)) >> 16,
+		(PLAT_ARM_GICD_BASE + NRD_REMOTE_CHIP_MEM_OFFSET(2)) >> 16,
 #endif
 #if NRD_CHIP_COUNT > 3
-		(PLAT_ARM_GICD_BASE + CSS_SGI_REMOTE_CHIP_MEM_OFFSET(3)) >> 16,
+		(PLAT_ARM_GICD_BASE + NRD_REMOTE_CHIP_MEM_OFFSET(3)) >> 16,
 #endif
 	},
 	.spi_ids = {
@@ -70,15 +70,15 @@
 	PLAT_ARM_GICR_BASE,
 #if NRD_CHIP_COUNT > 1
 	/* Chip 1's GICR BASE */
-	PLAT_ARM_GICR_BASE + CSS_SGI_REMOTE_CHIP_MEM_OFFSET(1),
+	PLAT_ARM_GICR_BASE + NRD_REMOTE_CHIP_MEM_OFFSET(1),
 #endif
 #if NRD_CHIP_COUNT > 2
 	/* Chip 2's GICR BASE */
-	PLAT_ARM_GICR_BASE + CSS_SGI_REMOTE_CHIP_MEM_OFFSET(2),
+	PLAT_ARM_GICR_BASE + NRD_REMOTE_CHIP_MEM_OFFSET(2),
 #endif
 #if NRD_CHIP_COUNT > 3
 	/* Chip 3's GICR BASE */
-	PLAT_ARM_GICR_BASE + CSS_SGI_REMOTE_CHIP_MEM_OFFSET(3),
+	PLAT_ARM_GICR_BASE + NRD_REMOTE_CHIP_MEM_OFFSET(3),
 #endif
 	UL(0)	/* Zero Termination */
 };
diff --git a/plat/arm/board/neoverse_rd/platform/rdn2/rdn2_security.c b/plat/arm/board/neoverse_rd/platform/rdn2/rdn2_security.c
index 3cdc0d3..8ec8345 100644
--- a/plat/arm/board/neoverse_rd/platform/rdn2/rdn2_security.c
+++ b/plat/arm/board/neoverse_rd/platform/rdn2/rdn2_security.c
@@ -8,9 +8,9 @@
 #include <plat/arm/common/plat_arm.h>
 #include <platform_def.h>
 
-#define RDN2_TZC_CPER_REGION					\
-	{CSS_SGI_SP_CPER_BUF_BASE, (CSS_SGI_SP_CPER_BUF_BASE +	\
-	CSS_SGI_SP_CPER_BUF_SIZE) - 1, TZC_REGION_S_NONE,	\
+#define RDN2_TZC_CPER_REGION				\
+	{NRD_SP_CPER_BUF_BASE, (NRD_SP_CPER_BUF_BASE +	\
+	NRD_SP_CPER_BUF_SIZE) - 1, TZC_REGION_S_NONE,	\
 	PLAT_ARM_TZC_NS_DEV_ACCESS}
 
 static const arm_tzc_regions_info_t tzc_regions[] = {
@@ -63,7 +63,7 @@
 		INFO("Configuring TrustZone Controller for Chip %u\n", i);
 
 		for (j = 0; j < TZC400_COUNT; j++) {
-			arm_tzc400_setup(CSS_SGI_REMOTE_CHIP_MEM_OFFSET(i)
+			arm_tzc400_setup(NRD_REMOTE_CHIP_MEM_OFFSET(i)
 				+ TZC400_BASE(j), tzc_regions_mc[i-1]);
 		}
 	}
diff --git a/plat/arm/board/neoverse_rd/platform/rdn2/rdn2_topology.c b/plat/arm/board/neoverse_rd/platform/rdn2/rdn2_topology.c
index 1dea43e..b8b6b7a 100644
--- a/plat/arm/board/neoverse_rd/platform/rdn2/rdn2_topology.c
+++ b/plat/arm/board/neoverse_rd/platform/rdn2/rdn2_topology.c
@@ -12,30 +12,30 @@
  ******************************************************************************/
 const unsigned char rd_n2_pd_tree_desc[] = {
 	(PLAT_ARM_CLUSTER_COUNT) * (NRD_CHIP_COUNT),
-	CSS_SGI_MAX_CPUS_PER_CLUSTER,
-	CSS_SGI_MAX_CPUS_PER_CLUSTER,
-	CSS_SGI_MAX_CPUS_PER_CLUSTER,
-	CSS_SGI_MAX_CPUS_PER_CLUSTER,
+	NRD_MAX_CPUS_PER_CLUSTER,
+	NRD_MAX_CPUS_PER_CLUSTER,
+	NRD_MAX_CPUS_PER_CLUSTER,
+	NRD_MAX_CPUS_PER_CLUSTER,
 #if (PLAT_ARM_CLUSTER_COUNT > 4 || \
 	(NRD_PLATFORM_VARIANT == 2 && NRD_CHIP_COUNT > 1))
-	CSS_SGI_MAX_CPUS_PER_CLUSTER,
-	CSS_SGI_MAX_CPUS_PER_CLUSTER,
-	CSS_SGI_MAX_CPUS_PER_CLUSTER,
-	CSS_SGI_MAX_CPUS_PER_CLUSTER,
+	NRD_MAX_CPUS_PER_CLUSTER,
+	NRD_MAX_CPUS_PER_CLUSTER,
+	NRD_MAX_CPUS_PER_CLUSTER,
+	NRD_MAX_CPUS_PER_CLUSTER,
 #endif
 #if (PLAT_ARM_CLUSTER_COUNT > 8 || \
 	(NRD_PLATFORM_VARIANT == 2 && NRD_CHIP_COUNT > 2))
-	CSS_SGI_MAX_CPUS_PER_CLUSTER,
-	CSS_SGI_MAX_CPUS_PER_CLUSTER,
-	CSS_SGI_MAX_CPUS_PER_CLUSTER,
-	CSS_SGI_MAX_CPUS_PER_CLUSTER,
+	NRD_MAX_CPUS_PER_CLUSTER,
+	NRD_MAX_CPUS_PER_CLUSTER,
+	NRD_MAX_CPUS_PER_CLUSTER,
+	NRD_MAX_CPUS_PER_CLUSTER,
 #endif
 #if (PLAT_ARM_CLUSTER_COUNT > 8 || \
 	(NRD_PLATFORM_VARIANT == 2 && NRD_CHIP_COUNT > 3))
-	CSS_SGI_MAX_CPUS_PER_CLUSTER,
-	CSS_SGI_MAX_CPUS_PER_CLUSTER,
-	CSS_SGI_MAX_CPUS_PER_CLUSTER,
-	CSS_SGI_MAX_CPUS_PER_CLUSTER,
+	NRD_MAX_CPUS_PER_CLUSTER,
+	NRD_MAX_CPUS_PER_CLUSTER,
+	NRD_MAX_CPUS_PER_CLUSTER,
+	NRD_MAX_CPUS_PER_CLUSTER,
 #endif
 };
 
diff --git a/plat/arm/board/neoverse_rd/platform/rdv1/include/platform_def.h b/plat/arm/board/neoverse_rd/platform/rdv1/include/platform_def.h
index 7eca2bd..f889561 100644
--- a/plat/arm/board/neoverse_rd/platform/rdv1/include/platform_def.h
+++ b/plat/arm/board/neoverse_rd/platform/rdv1/include/platform_def.h
@@ -12,8 +12,8 @@
 #include <nrd_soc_platform_def.h>
 
 #define PLAT_ARM_CLUSTER_COUNT		U(16)
-#define CSS_SGI_MAX_CPUS_PER_CLUSTER	U(1)
-#define CSS_SGI_MAX_PE_PER_CPU		U(1)
+#define NRD_MAX_CPUS_PER_CLUSTER	U(1)
+#define NRD_MAX_PE_PER_CPU		U(1)
 
 #define PLAT_CSS_MHU_BASE		UL(0x45400000)
 #define PLAT_MHUV2_BASE			PLAT_CSS_MHU_BASE
@@ -47,14 +47,14 @@
 		(TZC_REGION_ACCESS_RDWR(TZC_NSAID_VIRTIO))
 
 /* Maximum number of address bits used per chip */
-#define CSS_SGI_ADDR_BITS_PER_CHIP	U(42)
+#define NRD_ADDR_BITS_PER_CHIP	U(42)
 
 /*
  * Physical and virtual address space limits for MMU in AARCH64 & AARCH32 modes
  */
 #ifdef __aarch64__
-#define PLAT_PHY_ADDR_SPACE_SIZE	(1ULL << CSS_SGI_ADDR_BITS_PER_CHIP)
-#define PLAT_VIRT_ADDR_SPACE_SIZE	(1ULL << CSS_SGI_ADDR_BITS_PER_CHIP)
+#define PLAT_PHY_ADDR_SPACE_SIZE	(1ULL << NRD_ADDR_BITS_PER_CHIP)
+#define PLAT_VIRT_ADDR_SPACE_SIZE	(1ULL << NRD_ADDR_BITS_PER_CHIP)
 #else
 #define PLAT_PHY_ADDR_SPACE_SIZE	(1ULL << 32)
 #define PLAT_VIRT_ADDR_SPACE_SIZE	(1ULL << 32)
diff --git a/plat/arm/board/neoverse_rd/platform/rdv1/rdv1_topology.c b/plat/arm/board/neoverse_rd/platform/rdv1/rdv1_topology.c
index 5ae20dd..20e4266 100644
--- a/plat/arm/board/neoverse_rd/platform/rdv1/rdv1_topology.c
+++ b/plat/arm/board/neoverse_rd/platform/rdv1/rdv1_topology.c
@@ -12,22 +12,22 @@
  ******************************************************************************/
 const unsigned char rd_v1_pd_tree_desc[] = {
 	PLAT_ARM_CLUSTER_COUNT,
-	CSS_SGI_MAX_CPUS_PER_CLUSTER,
-	CSS_SGI_MAX_CPUS_PER_CLUSTER,
-	CSS_SGI_MAX_CPUS_PER_CLUSTER,
-	CSS_SGI_MAX_CPUS_PER_CLUSTER,
-	CSS_SGI_MAX_CPUS_PER_CLUSTER,
-	CSS_SGI_MAX_CPUS_PER_CLUSTER,
-	CSS_SGI_MAX_CPUS_PER_CLUSTER,
-	CSS_SGI_MAX_CPUS_PER_CLUSTER,
-	CSS_SGI_MAX_CPUS_PER_CLUSTER,
-	CSS_SGI_MAX_CPUS_PER_CLUSTER,
-	CSS_SGI_MAX_CPUS_PER_CLUSTER,
-	CSS_SGI_MAX_CPUS_PER_CLUSTER,
-	CSS_SGI_MAX_CPUS_PER_CLUSTER,
-	CSS_SGI_MAX_CPUS_PER_CLUSTER,
-	CSS_SGI_MAX_CPUS_PER_CLUSTER,
-	CSS_SGI_MAX_CPUS_PER_CLUSTER
+	NRD_MAX_CPUS_PER_CLUSTER,
+	NRD_MAX_CPUS_PER_CLUSTER,
+	NRD_MAX_CPUS_PER_CLUSTER,
+	NRD_MAX_CPUS_PER_CLUSTER,
+	NRD_MAX_CPUS_PER_CLUSTER,
+	NRD_MAX_CPUS_PER_CLUSTER,
+	NRD_MAX_CPUS_PER_CLUSTER,
+	NRD_MAX_CPUS_PER_CLUSTER,
+	NRD_MAX_CPUS_PER_CLUSTER,
+	NRD_MAX_CPUS_PER_CLUSTER,
+	NRD_MAX_CPUS_PER_CLUSTER,
+	NRD_MAX_CPUS_PER_CLUSTER,
+	NRD_MAX_CPUS_PER_CLUSTER,
+	NRD_MAX_CPUS_PER_CLUSTER,
+	NRD_MAX_CPUS_PER_CLUSTER,
+	NRD_MAX_CPUS_PER_CLUSTER
 };
 
 /*******************************************************************************
diff --git a/plat/arm/board/neoverse_rd/platform/rdv1mc/include/platform_def.h b/plat/arm/board/neoverse_rd/platform/rdv1mc/include/platform_def.h
index c0f8ebd..3e7c9b5 100644
--- a/plat/arm/board/neoverse_rd/platform/rdv1mc/include/platform_def.h
+++ b/plat/arm/board/neoverse_rd/platform/rdv1mc/include/platform_def.h
@@ -11,8 +11,8 @@
 #include <nrd_soc_platform_def.h>
 
 #define PLAT_ARM_CLUSTER_COUNT		U(4)
-#define CSS_SGI_MAX_CPUS_PER_CLUSTER	U(1)
-#define CSS_SGI_MAX_PE_PER_CPU		U(1)
+#define NRD_MAX_CPUS_PER_CLUSTER	U(1)
+#define NRD_MAX_PE_PER_CPU		U(1)
 
 #define PLAT_CSS_MHU_BASE		UL(0x45400000)
 #define PLAT_MHUV2_BASE			PLAT_CSS_MHU_BASE
@@ -47,12 +47,12 @@
 #define PLAT_ARM_MEM_PROTEC_VA_FRAME	UL(0xC0000000)
 
 /* Remote chip address offset (4TB per chip) */
-#define CSS_SGI_ADDR_BITS_PER_CHIP	U(42)
+#define NRD_ADDR_BITS_PER_CHIP	U(42)
 
 /* Physical and virtual address space limits for MMU in AARCH64 mode */
-#define PLAT_PHY_ADDR_SPACE_SIZE	CSS_SGI_REMOTE_CHIP_MEM_OFFSET( \
+#define PLAT_PHY_ADDR_SPACE_SIZE	NRD_REMOTE_CHIP_MEM_OFFSET( \
 						NRD_CHIP_COUNT)
-#define PLAT_VIRT_ADDR_SPACE_SIZE	CSS_SGI_REMOTE_CHIP_MEM_OFFSET( \
+#define PLAT_VIRT_ADDR_SPACE_SIZE	NRD_REMOTE_CHIP_MEM_OFFSET( \
 						NRD_CHIP_COUNT)
 
 /* GIC related constants */
diff --git a/plat/arm/board/neoverse_rd/platform/rdv1mc/rdv1mc_plat.c b/plat/arm/board/neoverse_rd/platform/rdv1mc/rdv1mc_plat.c
index 820c7e5..4455ec4 100644
--- a/plat/arm/board/neoverse_rd/platform/rdv1mc/rdv1mc_plat.c
+++ b/plat/arm/board/neoverse_rd/platform/rdv1mc/rdv1mc_plat.c
@@ -15,16 +15,16 @@
 #if defined(IMAGE_BL31)
 static const mmap_region_t rdv1mc_dynamic_mmap[] = {
 	ARM_MAP_SHARED_RAM_REMOTE_CHIP(1),
-	CSS_SGI_MAP_DEVICE_REMOTE_CHIP(1),
+	NRD_MAP_DEVICE_REMOTE_CHIP(1),
 	SOC_CSS_MAP_DEVICE_REMOTE_CHIP(1),
 #if (NRD_CHIP_COUNT > 2)
 	ARM_MAP_SHARED_RAM_REMOTE_CHIP(2),
-	CSS_SGI_MAP_DEVICE_REMOTE_CHIP(2),
+	NRD_MAP_DEVICE_REMOTE_CHIP(2),
 	SOC_CSS_MAP_DEVICE_REMOTE_CHIP(2),
 #endif
 #if (NRD_CHIP_COUNT > 3)
 	ARM_MAP_SHARED_RAM_REMOTE_CHIP(3),
-	CSS_SGI_MAP_DEVICE_REMOTE_CHIP(3),
+	NRD_MAP_DEVICE_REMOTE_CHIP(3),
 	SOC_CSS_MAP_DEVICE_REMOTE_CHIP(3)
 #endif
 };
@@ -35,12 +35,12 @@
 	.chip_count = NRD_CHIP_COUNT,
 	.chip_addrs = {
 		PLAT_ARM_GICD_BASE >> 16,
-		(PLAT_ARM_GICD_BASE + CSS_SGI_REMOTE_CHIP_MEM_OFFSET(1)) >> 16,
+		(PLAT_ARM_GICD_BASE + NRD_REMOTE_CHIP_MEM_OFFSET(1)) >> 16,
 #if (NRD_CHIP_COUNT > 2)
-		(PLAT_ARM_GICD_BASE + CSS_SGI_REMOTE_CHIP_MEM_OFFSET(2)) >> 16,
+		(PLAT_ARM_GICD_BASE + NRD_REMOTE_CHIP_MEM_OFFSET(2)) >> 16,
 #endif
 #if (NRD_CHIP_COUNT > 3)
-		(PLAT_ARM_GICD_BASE + CSS_SGI_REMOTE_CHIP_MEM_OFFSET(3)) >> 16,
+		(PLAT_ARM_GICD_BASE + NRD_REMOTE_CHIP_MEM_OFFSET(3)) >> 16,
 #endif
 	},
 	.spi_ids = {
@@ -60,14 +60,14 @@
 	/* Chip 0's GICR Base */
 	PLAT_ARM_GICR_BASE,
 	/* Chip 1's GICR BASE */
-	PLAT_ARM_GICR_BASE + CSS_SGI_REMOTE_CHIP_MEM_OFFSET(1),
+	PLAT_ARM_GICR_BASE + NRD_REMOTE_CHIP_MEM_OFFSET(1),
 #if (NRD_CHIP_COUNT > 2)
 	/* Chip 2's GICR BASE */
-	PLAT_ARM_GICR_BASE + CSS_SGI_REMOTE_CHIP_MEM_OFFSET(2),
+	PLAT_ARM_GICR_BASE + NRD_REMOTE_CHIP_MEM_OFFSET(2),
 #endif
 #if (NRD_CHIP_COUNT > 3)
 	/* Chip 3's GICR BASE */
-	PLAT_ARM_GICR_BASE + CSS_SGI_REMOTE_CHIP_MEM_OFFSET(3),
+	PLAT_ARM_GICR_BASE + NRD_REMOTE_CHIP_MEM_OFFSET(3),
 #endif
 	UL(0)	/* Zero Termination */
 };
diff --git a/plat/arm/board/neoverse_rd/platform/rdv1mc/rdv1mc_security.c b/plat/arm/board/neoverse_rd/platform/rdv1mc/rdv1mc_security.c
index 8f371c5..d437def 100644
--- a/plat/arm/board/neoverse_rd/platform/rdv1mc/rdv1mc_security.c
+++ b/plat/arm/board/neoverse_rd/platform/rdv1mc/rdv1mc_security.c
@@ -56,7 +56,7 @@
 		INFO("Configuring TrustZone Controller for Chip %u\n", i);
 
 		for (j = 0; j < TZC400_COUNT; j++) {
-			arm_tzc400_setup(CSS_SGI_REMOTE_CHIP_MEM_OFFSET(i)
+			arm_tzc400_setup(NRD_REMOTE_CHIP_MEM_OFFSET(i)
 				+ TZC400_BASE(j), tzc_regions_mc[i-1]);
 		}
 	}
diff --git a/plat/arm/board/neoverse_rd/platform/rdv1mc/rdv1mc_topology.c b/plat/arm/board/neoverse_rd/platform/rdv1mc/rdv1mc_topology.c
index d0eeb1d..52514ca 100644
--- a/plat/arm/board/neoverse_rd/platform/rdv1mc/rdv1mc_topology.c
+++ b/plat/arm/board/neoverse_rd/platform/rdv1mc/rdv1mc_topology.c
@@ -15,27 +15,27 @@
  ******************************************************************************/
 const unsigned char rd_v1_mc_pd_tree_desc_multi_chip[] = {
 	((PLAT_ARM_CLUSTER_COUNT) * (NRD_CHIP_COUNT)),
-	CSS_SGI_MAX_CPUS_PER_CLUSTER,
-	CSS_SGI_MAX_CPUS_PER_CLUSTER,
-	CSS_SGI_MAX_CPUS_PER_CLUSTER,
-	CSS_SGI_MAX_CPUS_PER_CLUSTER,
+	NRD_MAX_CPUS_PER_CLUSTER,
+	NRD_MAX_CPUS_PER_CLUSTER,
+	NRD_MAX_CPUS_PER_CLUSTER,
+	NRD_MAX_CPUS_PER_CLUSTER,
 #if (NRD_CHIP_COUNT > 1)
-	CSS_SGI_MAX_CPUS_PER_CLUSTER,
-	CSS_SGI_MAX_CPUS_PER_CLUSTER,
-	CSS_SGI_MAX_CPUS_PER_CLUSTER,
-	CSS_SGI_MAX_CPUS_PER_CLUSTER,
+	NRD_MAX_CPUS_PER_CLUSTER,
+	NRD_MAX_CPUS_PER_CLUSTER,
+	NRD_MAX_CPUS_PER_CLUSTER,
+	NRD_MAX_CPUS_PER_CLUSTER,
 #endif
 #if (NRD_CHIP_COUNT > 2)
-	CSS_SGI_MAX_CPUS_PER_CLUSTER,
-	CSS_SGI_MAX_CPUS_PER_CLUSTER,
-	CSS_SGI_MAX_CPUS_PER_CLUSTER,
-	CSS_SGI_MAX_CPUS_PER_CLUSTER,
+	NRD_MAX_CPUS_PER_CLUSTER,
+	NRD_MAX_CPUS_PER_CLUSTER,
+	NRD_MAX_CPUS_PER_CLUSTER,
+	NRD_MAX_CPUS_PER_CLUSTER,
 #endif
 #if (NRD_CHIP_COUNT > 3)
-	CSS_SGI_MAX_CPUS_PER_CLUSTER,
-	CSS_SGI_MAX_CPUS_PER_CLUSTER,
-	CSS_SGI_MAX_CPUS_PER_CLUSTER,
-	CSS_SGI_MAX_CPUS_PER_CLUSTER
+	NRD_MAX_CPUS_PER_CLUSTER,
+	NRD_MAX_CPUS_PER_CLUSTER,
+	NRD_MAX_CPUS_PER_CLUSTER,
+	NRD_MAX_CPUS_PER_CLUSTER
 #endif
 };
 
diff --git a/plat/arm/board/neoverse_rd/platform/sgi575/include/platform_def.h b/plat/arm/board/neoverse_rd/platform/sgi575/include/platform_def.h
index 7cc5366..9658ee1 100644
--- a/plat/arm/board/neoverse_rd/platform/sgi575/include/platform_def.h
+++ b/plat/arm/board/neoverse_rd/platform/sgi575/include/platform_def.h
@@ -13,8 +13,8 @@
 #include <nrd_soc_platform_def.h>
 
 #define PLAT_ARM_CLUSTER_COUNT		U(2)
-#define CSS_SGI_MAX_CPUS_PER_CLUSTER	U(4)
-#define CSS_SGI_MAX_PE_PER_CPU		U(1)
+#define NRD_MAX_CPUS_PER_CLUSTER	U(4)
+#define NRD_MAX_PE_PER_CPU		U(1)
 
 #define PLAT_CSS_MHU_BASE		UL(0x45000000)
 
@@ -28,14 +28,14 @@
 #define PLAT_MAX_PWR_LVL		ARM_PWR_LVL1
 
 /* Maximum number of address bits used per chip */
-#define CSS_SGI_ADDR_BITS_PER_CHIP	U(36)
+#define NRD_ADDR_BITS_PER_CHIP	U(36)
 
 /*
  * Physical and virtual address space limits for MMU in AARCH64 & AARCH32 modes
  */
 #ifdef __aarch64__
-#define PLAT_PHY_ADDR_SPACE_SIZE	(1ULL << CSS_SGI_ADDR_BITS_PER_CHIP)
-#define PLAT_VIRT_ADDR_SPACE_SIZE	(1ULL << CSS_SGI_ADDR_BITS_PER_CHIP)
+#define PLAT_PHY_ADDR_SPACE_SIZE	(1ULL << NRD_ADDR_BITS_PER_CHIP)
+#define PLAT_VIRT_ADDR_SPACE_SIZE	(1ULL << NRD_ADDR_BITS_PER_CHIP)
 #else
 #define PLAT_PHY_ADDR_SPACE_SIZE	(1ULL << 32)
 #define PLAT_VIRT_ADDR_SPACE_SIZE	(1ULL << 32)
diff --git a/plat/arm/board/neoverse_rd/platform/sgi575/sgi575_security.c b/plat/arm/board/neoverse_rd/platform/sgi575/sgi575_security.c
index 00b49e2..8b8a382 100644
--- a/plat/arm/board/neoverse_rd/platform/sgi575/sgi575_security.c
+++ b/plat/arm/board/neoverse_rd/platform/sgi575/sgi575_security.c
@@ -20,7 +20,7 @@
 };
 
 static const tzc_dmc620_acc_addr_data_t sgi575_acc_addr_data[] = {
-	CSS_SGI_DMC620_TZC_REGIONS_DEF
+	NRD_DMC620_TZC_REGIONS_DEF
 };
 
 static const tzc_dmc620_config_data_t sgi575_plat_config_data = {
diff --git a/plat/arm/board/neoverse_rd/platform/sgi575/sgi575_topology.c b/plat/arm/board/neoverse_rd/platform/sgi575/sgi575_topology.c
index 9f5e18a..15ffc65 100644
--- a/plat/arm/board/neoverse_rd/platform/sgi575/sgi575_topology.c
+++ b/plat/arm/board/neoverse_rd/platform/sgi575/sgi575_topology.c
@@ -11,8 +11,8 @@
  ******************************************************************************/
 static const unsigned char sgi575_pd_tree_desc[] = {
 	PLAT_ARM_CLUSTER_COUNT,
-	CSS_SGI_MAX_CPUS_PER_CLUSTER,
-	CSS_SGI_MAX_CPUS_PER_CLUSTER
+	NRD_MAX_CPUS_PER_CLUSTER,
+	NRD_MAX_CPUS_PER_CLUSTER
 };
 
 /*******************************************************************************