#
# Copyright (c) 2015-2018, ARM Limited and Contributors. All rights reserved.
#
# SPDX-License-Identifier: BSD-3-Clause
#

ARM_CORTEX_A7		:=	yes
ARM_WITH_NEON		:=	yes
BL2_AT_EL3		:=	1
USE_COHERENT_MEM	:=	0

STM32_TF_VERSION	?=	0

# Not needed for Cortex-A7
WORKAROUND_CVE_2017_5715:=	0

PLAT_INCLUDES		:=	-Iplat/st/stm32mp1/include/
PLAT_INCLUDES		+=	-Iinclude/common/tbbr
PLAT_INCLUDES		+=	-Iinclude/drivers/st

# Device tree
STM32_DTB_FILE_NAME	?=	stm32mp157c-ev1.dtb
FDT_SOURCES		:=	$(addprefix fdts/, $(patsubst %.dtb,%.dts,$(STM32_DTB_FILE_NAME)))
DTC_FLAGS		+=	-Wno-unit_address_vs_reg

include lib/libfdt/libfdt.mk

PLAT_BL_COMMON_SOURCES	:=	plat/st/stm32mp1/stm32mp1_common.c

PLAT_BL_COMMON_SOURCES	+=	drivers/console/aarch32/console.S			\
				drivers/st/uart/aarch32/stm32_console.S

ifneq (${ENABLE_STACK_PROTECTOR},0)
PLAT_BL_COMMON_SOURCES	+=	plat/st/stm32mp1/stm32mp1_stack_protector.c
endif

include lib/xlat_tables_v2/xlat_tables.mk
PLAT_BL_COMMON_SOURCES	+=	${XLAT_TABLES_LIB_SRCS}

PLAT_BL_COMMON_SOURCES	+=	lib/cpus/aarch32/cortex_a7.S

PLAT_BL_COMMON_SOURCES	+=	${LIBFDT_SRCS}						\
				drivers/arm/tzc/tzc400.c				\
				drivers/delay_timer/delay_timer.c			\
				drivers/delay_timer/generic_delay_timer.c		\
				drivers/st/clk/stm32mp1_clk.c				\
				drivers/st/clk/stm32mp1_clkfunc.c			\
				drivers/st/ddr/stm32mp1_ddr_helpers.c			\
				drivers/st/gpio/stm32_gpio.c				\
				drivers/st/pmic/stm32_i2c.c				\
				drivers/st/pmic/stm32mp1_pmic.c				\
				drivers/st/pmic/stpmu1.c				\
				drivers/st/reset/stm32mp1_reset.c			\
				plat/st/stm32mp1/stm32mp1_context.c			\
				plat/st/stm32mp1/stm32mp1_dt.c				\
				plat/st/stm32mp1/stm32mp1_helper.S			\
				plat/st/stm32mp1/stm32mp1_security.c

BL2_SOURCES		+=	drivers/io/io_dummy.c					\
				drivers/io/io_storage.c					\
				plat/st/stm32mp1/bl2_io_storage.c			\
				plat/st/stm32mp1/bl2_plat_setup.c

BL2_SOURCES		+=	drivers/st/ddr/stm32mp1_ddr.c				\
				drivers/st/ddr/stm32mp1_ram.c

BL2_SOURCES		+=	common/desc_image_load.c				\
				plat/st/stm32mp1/plat_bl2_mem_params_desc.c		\
				plat/st/stm32mp1/plat_image_load.c

# For memory footprint optimization, build with thumb and interwork support
ASFLAGS			+=	-mthumb -mthumb-interwork
TF_CFLAGS		+=	-mthumb -mthumb-interwork

# Macros and rules to build TF binary
STM32_TF_ELF_LDFLAGS	:=	--hash-style=gnu --as-needed
STM32_DT_BASENAME	:=	$(STM32_DTB_FILE_NAME:.dtb=)
STM32_TF_STM32		:=	${BUILD_PLAT}/tf-a-${STM32_DT_BASENAME}.stm32
STM32_TF_BINARY		:=	$(STM32_TF_STM32:.stm32=.bin)
STM32_TF_MAPFILE	:=	$(STM32_TF_STM32:.stm32=.map)
STM32_TF_LINKERFILE	:=	$(STM32_TF_STM32:.stm32=.ld)
STM32_TF_ELF		:=	$(STM32_TF_STM32:.stm32=.elf)
STM32_TF_DTBFILE	:=      ${BUILD_PLAT}/fdts/${STM32_DTB_FILE_NAME}
STM32_TF_OBJS		:=	${BUILD_PLAT}/stm32mp1.o

# Variables for use with stm32image
STM32IMAGEPATH		?= tools/stm32image
STM32IMAGE		?= ${STM32IMAGEPATH}/stm32image${BIN_EXT}

.PHONY:			${STM32_TF_STM32}
.SUFFIXES:

all: check_dtc_version ${STM32_TF_STM32} stm32image

ifeq ($(AARCH32_SP),sp_min)
# BL32 is built only if using SP_MIN
BL32_DEP		:= bl32
BL32_PATH		:= -DBL32_BIN_PATH=\"${BUILD_PLAT}/bl32.bin\"
endif

distclean realclean clean: clean_stm32image

stm32image:
	${Q}${MAKE} CPPFLAGS="" --no-print-directory -C ${STM32IMAGEPATH}

clean_stm32image:
	${Q}${MAKE} --no-print-directory -C ${STM32IMAGEPATH} clean

check_dtc_version:
	$(eval DTC_V = $(shell $(DTC) -v | awk '{print $$NF}'))
	$(eval DTC_VERSION = $(shell printf "%d" $(shell echo ${DTC_V} | cut -d- -f1 | sed "s/\./0/g")))
	@if [ ${DTC_VERSION} -lt 10404 ]; then \
		echo "dtc version too old (${DTC_V}), you need at least version 1.4.4"; \
		false; \
	fi


${STM32_TF_OBJS}:	plat/st/stm32mp1/stm32mp1.S bl2 ${BL32_DEP} ${STM32_TF_DTBFILE}
			@echo "  AS      $<"
			${Q}${AS} ${ASFLAGS} ${TF_CFLAGS} \
				${BL32_PATH} \
				-DBL2_BIN_PATH=\"${BUILD_PLAT}/bl2.bin\" \
				-DDTB_BIN_PATH=\"${STM32_TF_DTBFILE}\" \
				-c plat/st/stm32mp1/stm32mp1.S -o $@

${STM32_TF_LINKERFILE}:	plat/st/stm32mp1/stm32mp1.ld.S
			@echo "  LDS     $<"
			${Q}${AS} ${ASFLAGS} ${TF_CFLAGS} -P -E $< -o $@

${STM32_TF_ELF}:	${STM32_TF_OBJS} ${STM32_TF_LINKERFILE}
			@echo "  LDS     $<"
			${Q}${LD} -o $@ ${STM32_TF_ELF_LDFLAGS} -Map=${STM32_TF_MAPFILE} --script ${STM32_TF_LINKERFILE} ${STM32_TF_OBJS}

${STM32_TF_BINARY}:	${STM32_TF_ELF}
			${Q}${OC} -O binary ${STM32_TF_ELF} $@
			@echo
			@echo "Built $@ successfully"
			@echo

${STM32_TF_STM32}:	stm32image ${STM32_TF_BINARY}
			@echo
			@echo "Generated $@"
			$(eval LOADADDR =  $(shell cat ${STM32_TF_MAPFILE} | grep RAM | awk '{print $$2}'))
			$(eval ENTRY =  $(shell cat ${STM32_TF_MAPFILE} | grep "__BL2_IMAGE_START" | awk '{print $$1}'))
			${STM32IMAGE} -s ${STM32_TF_BINARY} -d $@ -l $(LOADADDR) -e ${ENTRY} -v ${STM32_TF_VERSION}
			@echo