LDFLAGS=
CFLAGS=
CPPFLAGS=

LOCAL_PATH=$(PWD)


UBOOT_LOCALVERSION=

UBOOT_CONFIGS ?=  stm32mp15_trusted_defconfig,trusted,u-boot.stm32 stm32mp15_trusted_defconfig,optee,u-boot.stm32 stm32mp15_basic_defconfig,basic,u-boot.img
DEVICE_TREE ?=   stm32mp157a-dk1 stm32mp157d-dk1 stm32mp157c-dk2 stm32mp157f-dk2   stm32mp157c-ed1 stm32mp157f-ed1   stm32mp157a-ev1 stm32mp157c-ev1 stm32mp157d-ev1 stm32mp157f-ev1 

help:
	@echo
	@echo "Configured U-Boot config(s):"
	@for config in $(UBOOT_CONFIGS); do \
		defconfig=$$(echo $$config | cut -d',' -f1) ; \
		type=$$(echo $$config | cut -d',' -f2) ; \
		binary=$$(echo $$config | cut -d',' -f3) ; \
		echo "  $$defconfig config ($$type type) for $$binary binary" ; \
		for devicetree in $(DEVICE_TREE); do \
			echo "    with device tree: $$devicetree" ; \
		done ; \
	done
	@echo
	@echo "Available targets:"
	@echo "  all   : build U-Boot binaries for defined config(s)"
	@echo "  clean : clean build directories from generated files"

version:
	@if test ! -e .scmversion ; then echo $(UBOOT_LOCALVERSION) > $(LOCAL_PATH)/.scmversion; fi

all: version
	for config in $(UBOOT_CONFIGS); do \
		uboot_config=$$(echo $$config | cut -d',' -f1) ; \
		uboot_type=-$$(echo $$config | cut -d',' -f2) ; \
		uboot_binary=$$(echo $$config | cut -d',' -f3) ; \
		uboot_suffix=$$(echo $$uboot_binary | cut -d'.' -f2) ; \
		if test -z "$$uboot_config" -o -z "$$uboot_type" -o -z "$$uboot_binary"; then \
			echo ; \
			echo "[ERROR] UBOOT_CONFIGS wrongly configured. It should be space separated list of element <defconfig>,<type>,<binary>" ; \
			echo ; \
			exit 1 ; \
		fi ; \
		if [ ! -d $(LOCAL_PATH)/../build$$uboot_type ]; then \
			mkdir -p $(LOCAL_PATH)/../build$$uboot_type ; \
			echo $(UBOOT_LOCALVERSION) > $(LOCAL_PATH)/../build$$uboot_type/.scmversion ; \
			$(MAKE) -C $(LOCAL_PATH) O=$(LOCAL_PATH)/../build$$uboot_type $$uboot_config ; \
		fi ; \
		if [ -z "$(DEVICE_TREE)" ]; then \
			$(MAKE) -C $(LOCAL_PATH) O=$(LOCAL_PATH)/../build$$uboot_type all ; \
			cp -f $(LOCAL_PATH)/../build$$uboot_type/$$uboot_binary $(LOCAL_PATH)/../build$$uboot_type/u-boot$$uboot_type.$$uboot_suffix ; \
			cp -f $(LOCAL_PATH)/../build$$uboot_type/u-boot $(LOCAL_PATH)/../build$$uboot_type/u-boot$$uboot_type.elf ; \
			if [ -f $(LOCAL_PATH)/../build$$uboot_type/spl/u-boot-spl.stm32 ]; then \
				cp -f $(LOCAL_PATH)/../build$$uboot_type/spl/u-boot-spl.stm32 $(LOCAL_PATH)/../build$$uboot_type/u-boot-spl.stm32$$uboot_type ; \
				cp -f $(LOCAL_PATH)/../build$$uboot_type/spl/u-boot-spl $(LOCAL_PATH)/../build$$uboot_type/u-boot-spl.elf$$uboot_type ; \
			fi ; \
		else \
			for devicetree in $(DEVICE_TREE); do \
				$(MAKE) -C $(LOCAL_PATH) O=$(LOCAL_PATH)/../build$$uboot_type all DEVICE_TREE=$$devicetree DEVICE_TREE_EXT=$$devicetree.dtb; \
				cp -f $(LOCAL_PATH)/../build$$uboot_type/$$uboot_binary $(LOCAL_PATH)/../build$$uboot_type/u-boot-$$devicetree$$uboot_type.$$uboot_suffix ; \
				cp -f $(LOCAL_PATH)/../build$$uboot_type/u-boot $(LOCAL_PATH)/../build$$uboot_type/u-boot-$$devicetree$$uboot_type.elf ; \
				if [ -f $(LOCAL_PATH)/../build$$uboot_type/spl/u-boot-spl.stm32 ]; then \
					cp -f $(LOCAL_PATH)/../build$$uboot_type/spl/u-boot-spl.stm32 $(LOCAL_PATH)/../build$$uboot_type/u-boot-spl.stm32-$$devicetree$$uboot_type ; \
					cp -f $(LOCAL_PATH)/../build$$uboot_type/spl/u-boot-spl $(LOCAL_PATH)/../build$$uboot_type/u-boot-spl.elf-$$devicetree$$uboot_type ; \
				fi ; \
			done ; \
		fi ; \
	done

clean:
	@for config in $(UBOOT_CONFIGS); do \
		uboot_type=-$$(echo $$config | cut -d',' -f2) ; \
		echo "Removing $(LOCAL_PATH)/../build$$uboot_type ..." ; \
		rm -rf $(LOCAL_PATH)/../build$$uboot_type ; \
	done