refactor(sgi): move from "sgi" to "neoverse_rd"

Currently, reference design platforms such as RD-N2, RD-N1-Edge,
RD-V1-MC, RD-V1 and SGI-575 utilize "css/sgi" as the common source
directory. The "sgi" prefix originated from the System Guidance for
Infrastructure (SGI) and was initially associated with the SGI-575
platform. However, subsequent platforms released were under the Neoverse
Reference Design product name.

To align with the Neoverse Reference Design nomenclature, rename the
common source directory from "css/sgi" to "css/neoverse_rd" and update
all file prefixes from "sgi" to "nrd."

Signed-off-by: Rohit Mathew <Rohit.Mathew@arm.com>
Change-Id: I3dcbb31b9ab202e82caf25218ba33c520dcea4e4
diff --git a/plat/arm/board/rdn2/include/platform_def.h b/plat/arm/board/rdn2/include/platform_def.h
index 2391b72..c8f6ffb 100644
--- a/plat/arm/board/rdn2/include/platform_def.h
+++ b/plat/arm/board/rdn2/include/platform_def.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2020-2023, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2020-2024, Arm Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -8,8 +8,8 @@
 #define PLATFORM_DEF_H
 
 #include <lib/utils_def.h>
-#include <sgi_sdei.h>
-#include <sgi_soc_platform_def_v2.h>
+#include <nrd_sdei.h>
+#include <nrd_soc_platform_def_v2.h>
 
 #if (CSS_SGI_PLATFORM_VARIANT == 1)
 #define PLAT_ARM_CLUSTER_COUNT		U(8)
diff --git a/plat/arm/board/rdn2/include/rdn2_ras.h b/plat/arm/board/rdn2/include/rdn2_ras.h
index 1d9af60..7a97ea3 100644
--- a/plat/arm/board/rdn2/include/rdn2_ras.h
+++ b/plat/arm/board/rdn2/include/rdn2_ras.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2023, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2023-2024, Arm Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -7,7 +7,7 @@
 #ifndef RDN2_RAS_H
 #define RDN2_RAS_H
 
-#include <sgi_ras.h>
+#include <nrd_ras.h>
 
 extern struct plat_sgi_ras_config ras_config;
 
diff --git a/plat/arm/board/rdn2/platform.mk b/plat/arm/board/rdn2/platform.mk
index 30402a8..6476899 100644
--- a/plat/arm/board/rdn2/platform.mk
+++ b/plat/arm/board/rdn2/platform.mk
@@ -28,7 +28,7 @@
 override CSS_SYSTEM_GRACEFUL_RESET	:= 1
 override EL3_EXCEPTION_HANDLING		:= 1
 
-include plat/arm/css/sgi/sgi-common.mk
+include plat/arm/css/neoverse_rd/nrd-common.mk
 
 RDN2_BASE		=	plat/arm/board/rdn2
 
@@ -37,7 +37,7 @@
 SGI_CPU_SOURCES		:=	lib/cpus/aarch64/neoverse_n2.S \
 				lib/cpus/aarch64/neoverse_v2.S
 
-PLAT_BL_COMMON_SOURCES	+=	${CSS_ENT_BASE}/sgi_plat_v2.c
+PLAT_BL_COMMON_SOURCES	+=	${CSS_ENT_BASE}/nrd_plat_v2.c
 
 BL1_SOURCES		+=	${SGI_CPU_SOURCES}			\
 				${RDN2_BASE}/rdn2_err.c
@@ -71,9 +71,9 @@
 
 ifeq (${ENABLE_FEAT_RAS}-${HANDLE_EA_EL3_FIRST_NS},1-1)
 BL31_SOURCES		+=	${RDN2_BASE}/rdn2_ras.c			\
-				${CSS_ENT_BASE}/ras/sgi_ras_common.c	\
-				${CSS_ENT_BASE}/ras/sgi_ras_sram.c	\
-				${CSS_ENT_BASE}/ras/sgi_ras_cpu.c
+				${CSS_ENT_BASE}/ras/nrd_ras_common.c	\
+				${CSS_ENT_BASE}/ras/nrd_ras_sram.c	\
+				${CSS_ENT_BASE}/ras/nrd_ras_cpu.c
 endif
 
 # Add the FDT_SOURCES and options for Dynamic Config
diff --git a/plat/arm/board/rdn2/rdn2_plat.c b/plat/arm/board/rdn2/rdn2_plat.c
index 2a6c658..e369e36 100644
--- a/plat/arm/board/rdn2/rdn2_plat.c
+++ b/plat/arm/board/rdn2/rdn2_plat.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2020-2023, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2020-2024, Arm Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -9,9 +9,10 @@
 #include <plat/arm/common/plat_arm.h>
 #include <plat/common/platform.h>
 #include <services/el3_spmc_ffa_memory.h>
+
+#include <nrd_plat.h>
+#include <nrd_soc_platform_def_v2.h>
 #include <rdn2_ras.h>
-#include <sgi_soc_platform_def_v2.h>
-#include <sgi_plat.h>
 
 #if defined(IMAGE_BL31)
 #if (CSS_SGI_PLATFORM_VARIANT == 2)
diff --git a/plat/arm/board/rdn2/rdn2_ras.c b/plat/arm/board/rdn2/rdn2_ras.c
index 3aed58e..680e83b 100644
--- a/plat/arm/board/rdn2/rdn2_ras.c
+++ b/plat/arm/board/rdn2/rdn2_ras.c
@@ -1,12 +1,13 @@
 /*
- * Copyright (c) 2023, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2023-2024, Arm Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
 #include <platform_def.h>
-#include <sgi_ras.h>
-#include <sgi_sdei.h>
+
+#include <nrd_ras.h>
+#include <nrd_sdei.h>
 
 struct sgi_ras_ev_map plat_ras_map[] = {
 	/* Non Secure base RAM ECC CE interrupt */