plat-sam: add support for Microchip sama7g54-ek board

Add the main functions for sama7g54 initialize, including:
 - console_init()
 - Matrix, TZC, TZPM, interrupt related
Update conf.mk and Makefile for sama7g5 OP-TEE support.

Signed-off-by: Tony Han <tony.han@microchip.com>
Acked-by: Jens Wiklander <jens.wiklander@linaro.org>
Acked-by: Etienne Carriere <etienne.carriere@foss.st.com>

core/arch/arm/plat-sam/conf.mk

@@ -4,6 +4,7 @@ flavor_dts_file-sama5d2xult = at91-sama5d2_xplained.dts
 flavor_dts_file-sama5d2_xplained = at91-sama5d2_xplained.dts
 flavor_dts_file-sama5d27_som1_ek = at91-sama5d27_som1_ek.dts
 flavor_dts_file-sama5d27_wlsom1_ek = at91-sama5d27_wlsom1_ek.dts
+flavor_dts_file-sama7g54_ek = at91-sama7g54_ek.dts
 
 ifeq ($(PLATFORM_FLAVOR),sama5d2xult)
 $(warning "sama5d2xult is deprecated, please use sama5d2_xplained")
@@ -14,16 +15,23 @@ $(error Invalid platform flavor $(PLATFORM_FLAVOR))
 endif
 CFG_EMBED_DTB_SOURCE_FILE ?= $(flavor_dts_file-$(PLATFORM_FLAVOR))
 
+ifeq ($(PLATFORM_FLAVOR),sama7g54_ek)
+include core/arch/arm/cpu/cortex-a7.mk
+$(call force,CFG_SAMA7G5,y)
+$(call force,CFG_GIC,y)
+$(call force,CFG_TZC400,y)
+else
 include core/arch/arm/cpu/cortex-a5.mk
 $(call force,CFG_SAMA5D2,y)
+$(call force,CFG_ATMEL_SAIC,y)
+$(call force,CFG_PL310,y)
+$(call force,CFG_PL310_LOCKED,y)
+endif
 
 $(call force,CFG_TEE_CORE_NB_CORE,1)
 $(call force,CFG_ATMEL_UART,y)
-$(call force,CFG_ATMEL_SAIC,y)
 $(call force,CFG_ATMEL_TCB,y)
 $(call force,CFG_NO_SMP,y)
-$(call force,CFG_PL310,y)
-$(call force,CFG_PL310_LOCKED,y)
 $(call force,CFG_AT91_MATRIX,y)
 $(call force,CFG_DRIVERS_CLK,y)
 $(call force,CFG_DRIVERS_CLK_DT,y)
@@ -36,7 +44,12 @@ $(call force,CFG_CORE_HAS_GENERIC_TIMER,n)
 # These values are forced because of matrix configuration for secure area.
 # When modifying these, always update matrix settings in
 # matrix_configure_slave_h64mx().
+ifeq ($(CFG_SAMA7G5),y)
+$(call force,CFG_TZDRAM_START,0x60000000)
+endif
+ifeq ($(CFG_SAMA5D2),y)
 $(call force,CFG_TZDRAM_START,0x20000000)
+endif
 $(call force,CFG_TZDRAM_SIZE,0x800000)
 
 # This value is forced because these feature aren't used by SAM platforms.
@@ -45,16 +58,16 @@ $(call force,CFG_CORE_DYN_SHM,n)
 
 CFG_MMAP_REGIONS ?= 24
 
-CFG_SHMEM_START  ?= 0x21000000
+CFG_SHMEM_START  ?= ($(CFG_TZDRAM_START) + 0x1000000)
 CFG_SHMEM_SIZE   ?= 0x400000
 
-CFG_SCMI_SHMEM_START  ?= 0x21400000
+CFG_SCMI_SHMEM_START  ?= ($(CFG_TZDRAM_START) + 0x1400000)
 CFG_SCMI_SHMEM_SIZE   ?= 0x1000
 
 CFG_TEE_RAM_VA_SIZE ?= 0x100000
 
 # Device tree related configuration
-CFG_DT_ADDR ?= 0x21500000
+CFG_DT_ADDR ?= ($(CFG_TZDRAM_START) + 0x1500000)
 CFG_GENERATE_DTB_OVERLAY ?= y
 
 CFG_WITH_SOFTWARE_PRNG ?= n
@@ -114,6 +127,12 @@ $(call force,CFG_SCMI_MSG_SMT_FASTCALL_ENTRY,y)
 endif
 
 CFG_DRIVERS_NVMEM ?= y
+ifeq ($(CFG_SAMA7G5),y)
+CFG_ATMEL_SFC ?= n
+CFG_NVMEM_DIE_ID ?= n
+CFG_NVMEM_HUK ?= n
+else
 CFG_ATMEL_SFC ?= y
 CFG_NVMEM_DIE_ID ?= y
 CFG_NVMEM_HUK ?= y
+endif