plat/arm/sgi: reorganize platform macros

In preparation of adding support for upcoming SGI platforms, macros
common to all the SGI platforms are moved into sgi_base_platform_def.h
file. Macros that are specific to sgi575 platform remain in the
platform_def.h file. In addition to this, the platform_def.h file is
moved to sgi575 board directory. Also the ENT_CPU_SOURCES has been
renamed to SGI_CPU_SOURCES and moved from sgi-common.mk to board
specific makefile platform.mk

Change-Id: Iccdd9f070f4feea232b9fbf4fdcc0ef2e8eccbf2
Signed-off-by: Chandni Cherukuri <chandni.cherukuri@arm.com>

plat/arm/board/sgi575/include/platform_def.h

+/*
+ * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef PLATFORM_DEF_H
+#define PLATFORM_DEF_H
+
+#include <sgi_base_platform_def.h>
+
+#define PLAT_ARM_CLUSTER_COUNT		2
+#define CSS_SGI_MAX_CPUS_PER_CLUSTER	4
+#define CSS_SGI_MAX_PE_PER_CPU		1
+
+#define PLAT_CSS_MHU_BASE		0x45000000
+
+#endif /* PLATFORM_DEF_H */

plat/arm/board/sgi575/platform.mk

@@ -6,9 +6,18 @@
 
 include plat/arm/css/sgi/sgi-common.mk
 
+SGI575_BASE		=	plat/arm/board/sgi575
+
+PLAT_INCLUDES		+=	-I${SGI575_BASE}/include/
+
+SGI_CPU_SOURCES		:=	lib/cpus/aarch64/cortex_a75.S
+
+BL1_SOURCES		+=	${SGI_CPU_SOURCES}
+
 BL2_SOURCES		+=	lib/utils/mem_region.c			\
 				plat/arm/common/arm_nor_psci_mem_protect.c
 
-BL31_SOURCES		+=	drivers/cfi/v2m/v2m_flash.c		\
+BL31_SOURCES		+=	${SGI_CPU_SOURCES}			\
+				drivers/cfi/v2m/v2m_flash.c		\
 				lib/utils/mem_region.c			\
 				plat/arm/common/arm_nor_psci_mem_protect.c

plat/arm/css/sgi/include/platform_def.h → plat/arm/css/sgi/include/sgi_base_platform_def.h

@@ -4,8 +4,8 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
-#ifndef PLATFORM_DEF_H
-#define PLATFORM_DEF_H
+#ifndef SGI_BASE_PLATFORM_DEF_H
+#define SGI_BASE_PLATFORM_DEF_H
 
 #include <arm_def.h>
 #include <arm_spm_def.h>
@@ -17,11 +17,6 @@
 #include <v2m_def.h>
 #include <xlat_tables_defs.h>
 
-#define CSS_SGI_MAX_CPUS_PER_CLUSTER	4
-
-/* CPU topology */
-#define PLAT_ARM_CLUSTER_COUNT		2
-#define CSS_SGI_MAX_PE_PER_CPU		1
 #define PLATFORM_CORE_COUNT		(PLAT_ARM_CLUSTER_COUNT *	\
 					CSS_SGI_MAX_CPUS_PER_CLUSTER * \
 					CSS_SGI_MAX_PE_PER_CPU)
@@ -118,8 +113,6 @@
 
 #define PLAT_ARM_NSTIMER_FRAME_ID	0
 
-#define PLAT_CSS_MHU_BASE		0x45000000
-
 #define PLAT_ARM_TRUSTED_ROM_BASE	0x0
 #define PLAT_ARM_TRUSTED_ROM_SIZE	0x00080000	/* 512KB */
 
@@ -216,4 +209,4 @@
 					 V2M_FLASH0_SIZE - V2M_FLASH_BLOCK_SIZE)
 
 
-#endif /* PLATFORM_DEF_H */
+#endif /* SGI_BASE_PLATFORM_DEF_H */

plat/arm/css/sgi/sgi-common.mk

@@ -22,8 +22,6 @@ INTERCONNECT_SOURCES	:=	${CSS_ENT_BASE}/sgi_interconnect.c
 
 PLAT_INCLUDES		+=	-I${CSS_ENT_BASE}/include
 
-ENT_CPU_SOURCES		:=	lib/cpus/aarch64/cortex_a75.S
-
 ENT_GIC_SOURCES		:=	drivers/arm/gic/common/gic_common.c	\
 				drivers/arm/gic/v3/gicv3_main.c		\
 				drivers/arm/gic/v3/gicv3_helpers.c	\
@@ -36,15 +34,13 @@ PLAT_BL_COMMON_SOURCES	+=	${CSS_ENT_BASE}/sgi_plat.c	\
 				${CSS_ENT_BASE}/aarch64/sgi_helper.S
 
 BL1_SOURCES		+=	${INTERCONNECT_SOURCES}			\
-				${ENT_CPU_SOURCES}			\
 				${CSS_ENT_BASE}/sgi_bl1_setup.c	\
 				${CSS_ENT_BASE}/sgi_plat_config.c
 
 BL2_SOURCES		+=	${CSS_ENT_BASE}/sgi_security.c		\
 				${CSS_ENT_BASE}/sgi_image_load.c
 
-BL31_SOURCES		+=	${ENT_CPU_SOURCES}			\
-				${INTERCONNECT_SOURCES}			\
+BL31_SOURCES		+=	${INTERCONNECT_SOURCES}			\
 				${ENT_GIC_SOURCES}			\
 				${CSS_ENT_BASE}/sgi_bl31_setup.c	\
 				${CSS_ENT_BASE}/sgi_topology.c	\