refactor(sgi): replace references to "SGI"/"sgi" for neoverse_rd

Currently, there are several reference to "SGI" or "sgi" in comments or
as macro prefix within the neoverse_rd directory. As part of the
migration to neoverse_rd, rename all occurences of "SGI/sgi" to
"Neoverse-RD" or the "NRD" prefix accordingly. All references in
comments are rephrased as "Neoverse RD platforms". References in code
are renamed as "NRD"/"nrd" accordingly.

Signed-off-by: Rohit Mathew <Rohit.Mathew@arm.com>
Change-Id: Iec195427ff2bee565cb4a325a1a22892be95ae16
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 5a68960..89fa924 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
@@ -246,10 +246,10 @@
 #ifndef __ASSEMBLER__
 /* SSC_VERSION related accessors */
 /* Returns the part number of the platform */
-#define GET_SGI_PART_NUM                                       \
+#define GET_NRD_PART_NUM                                       \
 		GET_SSC_VERSION_PART_NUM(mmio_read_32(SSC_VERSION))
 /* Returns the configuration number of the platform */
-#define GET_SGI_CONFIG_NUM                                     \
+#define GET_NRD_CONFIG_NUM                                     \
 		GET_SSC_VERSION_CONFIG(mmio_read_32(SSC_VERSION))
 #endif /* __ASSEMBLER__ */
 
@@ -272,11 +272,11 @@
 #define PLAT_ARM_SCMI_CHANNEL_COUNT	NRD_CHIP_COUNT
 
 /*
- * Mapping definition of the TrustZone Controller for ARM SGI/RD platforms
+ * Mapping definition of the TrustZone Controller for Arm Neoverse RD platforms
  * where both the DRAM regions are marked for non-secure access. This applies
  * to multi-chip platforms.
  */
-#define SGI_PLAT_TZC_NS_REMOTE_REGIONS_DEF(n)				\
+#define NRD_PLAT_TZC_NS_REMOTE_REGIONS_DEF(n)				\
 	{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},	\
diff --git a/plat/arm/board/neoverse_rd/common/include/nrd_plat.h b/plat/arm/board/neoverse_rd/common/include/nrd_plat.h
index ce5e16d..775f233 100644
--- a/plat/arm/board/neoverse_rd/common/include/nrd_plat.h
+++ b/plat/arm/board/neoverse_rd/common/include/nrd_plat.h
@@ -7,7 +7,7 @@
 #ifndef NRD_PLAT_H
 #define NRD_PLAT_H
 
-/* BL31 platform setup common to all SGI based platforms */
+/* BL31 platform setup common to all Neoverse RD platforms */
 void nrd_bl31_common_platform_setup(void);
 
 #endif /* NRD_PLAT_H */
diff --git a/plat/arm/board/neoverse_rd/common/include/nrd_ras.h b/plat/arm/board/neoverse_rd/common/include/nrd_ras.h
index 86192ff..768689c 100644
--- a/plat/arm/board/neoverse_rd/common/include/nrd_ras.h
+++ b/plat/arm/board/neoverse_rd/common/include/nrd_ras.h
@@ -12,11 +12,11 @@
 
 /*
  * Interrupt type supported.
- * - SGI_RAS_INTR_TYPE_SPI: Denotes a SPI interrupt
- * - SGI_RAS_INTR_TYPE_PPI: Denotes a PPI interrupt
+ * - NRD_RAS_INTR_TYPE_SPI: Denotes a SPI interrupt
+ * - NRD_RAS_INTR_TYPE_PPI: Denotes a PPI interrupt
  */
-#define SGI_RAS_INTR_TYPE_SPI 0
-#define SGI_RAS_INTR_TYPE_PPI 1
+#define NRD_RAS_INTR_TYPE_SPI 0
+#define NRD_RAS_INTR_TYPE_PPI 1
 
 /*
  * MM Communicate information structure. Required to generate MM Communicate
diff --git a/plat/arm/board/neoverse_rd/common/include/nrd_sdei.h b/plat/arm/board/neoverse_rd/common/include/nrd_sdei.h
index 81bd513..f1b6015 100644
--- a/plat/arm/board/neoverse_rd/common/include/nrd_sdei.h
+++ b/plat/arm/board/neoverse_rd/common/include/nrd_sdei.h
@@ -10,13 +10,13 @@
 #if SDEI_SUPPORT
 
 /* ARM SDEI dynamic shared event numbers */
-#define SGI_SDEI_DS_EVENT_0		U(804)
-#define SGI_SDEI_DS_EVENT_1		U(805)
+#define NRD_SDEI_DS_EVENT_0		U(804)
+#define NRD_SDEI_DS_EVENT_1		U(805)
 
 #define PLAT_ARM_PRIVATE_SDEI_EVENTS					      \
 		SDEI_DEFINE_EVENT_0(ARM_SDEI_SGI),			      \
-		SDEI_EXPLICIT_EVENT(SGI_SDEI_DS_EVENT_0, SDEI_MAPF_CRITICAL), \
-		SDEI_EXPLICIT_EVENT(SGI_SDEI_DS_EVENT_1, SDEI_MAPF_CRITICAL),
+		SDEI_EXPLICIT_EVENT(NRD_SDEI_DS_EVENT_0, SDEI_MAPF_CRITICAL), \
+		SDEI_EXPLICIT_EVENT(NRD_SDEI_DS_EVENT_1, SDEI_MAPF_CRITICAL),
 
 #define PLAT_ARM_SHARED_SDEI_EVENTS
 
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 c4e377b..33f9b4b 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
@@ -156,7 +156,7 @@
 						V2M_FLASH0_SIZE,	\
 						MT_RO_DATA | MT_SECURE)
 
-#define SGI_MAP_FLASH0_RO		MAP_REGION_FLAT(V2M_FLASH0_BASE,\
+#define NRD_MAP_FLASH0_RO		MAP_REGION_FLAT(V2M_FLASH0_BASE,\
 						V2M_FLASH0_SIZE,	\
 						MT_DEVICE | MT_RO | MT_SECURE)
 
diff --git a/plat/arm/board/neoverse_rd/common/include/nrd_variant.h b/plat/arm/board/neoverse_rd/common/include/nrd_variant.h
index b2ac2ac..94f80c3 100644
--- a/plat/arm/board/neoverse_rd/common/include/nrd_variant.h
+++ b/plat/arm/board/neoverse_rd/common/include/nrd_variant.h
@@ -28,7 +28,7 @@
 #define RD_V2_SID_VER_PART_NUM			0x07F2
 #define RD_V2_CONFIG_ID				0x1
 
-/* Structure containing SGI platform variant information */
+/* Structure containing Neoverse RD platform variant information */
 typedef struct nrd_platform_info {
 	unsigned int platform_id;	/* Part Number of the platform */
 	unsigned int config_id;		/* Config Id of the platform */