imx.mk - OP-TEE/build - TrustedFirmware Git Browser

 ################################################################################
 # Following variables defines how the NS_USER (Non Secure User - Client
 # Application), NS_KERNEL (Non Secure Kernel), S_KERNEL (Secure Kernel) and
 # S_USER (Secure User - TA) are compiled
 ################################################################################
 override COMPILE_NS_USER   := 64
 override COMPILE_NS_KERNEL := 64
 override COMPILE_S_USER    := 64
 override COMPILE_S_KERNEL  := 64

 OPTEE_OS_PLATFORM = imx-mx8mqevk
 BR2_TARGET_GENERIC_GETTY_PORT = ttymxc0
 BR2_TARGET_ROOTFS_EXT2=y
 BR2_TARGET_ROOTFS_EXT2_4=y

 include common.mk

 ################################################################################
 # Paths to git projects and various binaries
 ################################################################################
 TF_A_PATH		?= $(ROOT)/trusted-firmware-a

 U-BOOT_PATH		?= $(ROOT)/u-boot
 U-BOOT_BIN		?= $(U-BOOT_PATH)/u-boot.bin

 FIRMWARE_BIN_SHA256_SUM ?= 63ec62f5d229cbed00918c8449173933f1c9d594c59396b8dd217e94f47138b0
 FIRMWARE_BIN		?= firmware-imx-8.0.bin
 FIRMWARE_BIN		?= firmware-imx-8.0.bin
 FIRMWARE_BIN_URL	?= https://www.nxp.com/lgfiles/NMG/MAD/YOCTO/$(FIRMWARE_BIN)
 FIRMWARE_VERSION	?= firmware-imx-8.0
 FIRMWARE_PATH		?= $(ROOT)/out-firmware/$(FIRMWARE_VERSION)
 LPDDR_BIN_PATH		?= $(FIRMWARE_PATH)/firmware/ddr/synopsys

 MKIMAGE_PATH		?= $(ROOT)/imx-mkimage
 BOOT_IMG		?= $(ROOT)/out/boot.img

 ################################################################################
 # Targets
 ################################################################################
 all: tfa u-boot linux optee-os buildroot flash-image
 clean: tfa-clean buildroot-clean u-boot-clean optee-os-clean

 include toolchain.mk

 ################################################################################
 # ARM Trusted Firmware
 ################################################################################
 TF_A_EXPORTS = CROSS_COMPILE="$(CCACHE)$(AARCH64_CROSS_COMPILE)"

 #	BL32=$(OPTEE_OS_HEADER_V2_BIN) \
 #	BL32_EXTRA1=$(OPTEE_OS_PAGER_V2_BIN) \
 #	BL32_EXTRA2=$(OPTEE_OS_PAGEABLE_V2_BIN) \

 TF_A_FLAGS  = PLAT=imx8mq SPD=opteed DEBUG_CONSOLE=1 DEBUG=0 V=1
 TF_A_FLAGS += BL32=$(ROOT)/optee_os/out/arm/core/tee-raw.bin

 tfa: optee-os u-boot
 	$(TF_A_EXPORTS) $(MAKE) -C $(TF_A_PATH) $(TF_A_FLAGS) all fip

 tfa-clean:
 	$(TF_A_EXPORTS) $(MAKE) -C $(TF_A_PATH) $(TF_A_FLAGS) clean

 ################################################################################
 # U-Boot
 ################################################################################

 U-BOOT_EXPORTS = CROSS_COMPILE="$(CCACHE)$(AARCH64_CROSS_COMPILE)"

 U-BOOT_DEFCONFIG_FILES := $(U-BOOT_PATH)/configs/imx8mq_evk_defconfig \
 			  $(BUILD_PATH)/kconfigs/uboot_imx8.conf

 $(U-BOOT_PATH)/.config: $(U-BOOT_DEFCONFIG_FILES)
 	$(U-BOOT_EXPORTS) $(MAKE) -C $(U-BOOT_PATH) imx8mq_evk_defconfig
 	(cd $(U-BOOT_PATH) && \
                 ARCH=arm64 \
                 scripts/kconfig/merge_config.sh $(U-BOOT_DEFCONFIG_FILES))

 .PHONY: u-boot-defconfig
 u-boot-defconfig: $(U-BOOT_PATH)/.config

 .PHONY: u-boot
 u-boot: u-boot-defconfig
 	$(U-BOOT_EXPORTS) $(MAKE) -C $(U-BOOT_PATH)

 .PHONY: u-boot-clean
 u-boot-clean:
 	cd $(U-BOOT_PATH) && git clean -xdf

 .PHONY: u-boot-cscope
 u-boot-cscope:
 	$(U-BOOT_EXPORTS) $(MAKE) -C $(U-BOOT_PATH) cscope


 ################################################################################
 # Linux kernel
 ################################################################################
 LINUX_DEFCONFIG_COMMON_ARCH := arm64
 LINUX_DEFCONFIG_COMMON_FILES := \
 		$(LINUX_PATH)/arch/arm64/configs/defconfig \
 		$(CURDIR)/kconfigs/imx.conf

 linux-defconfig: $(LINUX_PATH)/.config

 LINUX_COMMON_FLAGS += ARCH=arm64

 linux: linux-common

 linux-defconfig-clean: linux-defconfig-clean-common

 LINUX_CLEAN_COMMON_FLAGS += ARCH=arm64

 linux-clean: linux-clean-common

 LINUX_CLEANER_COMMON_FLAGS += ARCH=arm64

 linux-cleaner: linux-cleaner-common

 ################################################################################
 # OP-TEE
 ################################################################################
 optee-os: optee-os-common
 optee-os-clean: optee-os-clean-common

 ################################################################################
 # DDR firmware
 ################################################################################
 # This is prebuilt binaries by NXP, download them and use them. Update path if
 # it changes in the future.

 $(ROOT)/out-firmware/$(FIRMWARE_BIN):
 	mkdir -p $(ROOT)/out-firmware
 	(cd $(ROOT)/out-firmware && wget $(FIRMWARE_BIN_URL))

 $(FIRMWARE_PATH)/.unpacked: $(ROOT)/out-firmware/$(FIRMWARE_BIN)
 	(cd $(ROOT)/out-firmware && \
 	 echo $(FIRMWARE_BIN_SHA256_SUM) $(FIRMWARE_BIN) | sha256sum -c)
 	(cd $(ROOT)/out-firmware && \
 	 chmod 711 $(FIRMWARE_BIN) && ./$(FIRMWARE_BIN) --auto-accept)
 	touch $(FIRMWARE_PATH)/.unpacked

 .PHONY: ddr-firmware
 ddr-firmware: $(FIRMWARE_PATH)/.unpacked

 ddr-firmware-clean:
 	rm -rf $(ROOT)/out-firmware

 ################################################################################
 # imx-mkimage
 ################################################################################
 mkimage: u-boot tfa ddr-firmware
 	ln -sf $(ROOT)/optee_os/out/arm/core/tee-raw.bin \
 		$(MKIMAGE_PATH)/iMX8M/tee.bin
 	ln -sf $(ROOT)/trusted-firmware-a/build/imx8mq/release/bl31.bin \
 		$(MKIMAGE_PATH)/iMX8M/
 	ln -sf $(LPDDR_BIN_PATH)/lpddr4_pmu_train_*.bin $(MKIMAGE_PATH)/iMX8M/
 	ln -sf $(U-BOOT_PATH)/u-boot-nodtb.bin $(MKIMAGE_PATH)/iMX8M/
 	ln -sf $(U-BOOT_PATH)/spl/u-boot-spl.bin $(MKIMAGE_PATH)/iMX8M/
 	ln -sf $(U-BOOT_PATH)/arch/arm/dts/imx8mq-evk.dtb \
 		$(MKIMAGE_PATH)/iMX8M/fsl-imx8mq-evk.dtb
 	ln -sf $(U-BOOT_PATH)/tools/mkimage $(MKIMAGE_PATH)/iMX8M/mkimage_uboot
 	$(MAKE) -C $(MKIMAGE_PATH) SOC=iMX8M flash_spl_uboot
 #> +If you want to run with HDMI, copy signed_hdmi_imx8m.bin to imx-mkimage/iMX8M
 #> +make SOC=iMX8M flash_spl_uboot or make SOC=iMX8M flash_hdmi_spl_uboot to
 #> +generate flash.bin.
 mkimage-clean:
 	cd $(MKIMAGE_PATH) && git clean -xdf
 	rm -f $(ROOT)/build/mkimage_imx8

 $(ROOT)/out-br/images/ramdisk.img: $(ROOT)/out-br/images/rootfs.cpio.gz
 	$(U-BOOT_PATH)/tools/mkimage -A arm64 -O linux -T ramdisk -C gzip \
 		-d $< $@

 $(ROOT)/out:
 	mkdir -p $@

 $(ROOT)/out/boot.scr: $(ROOT)/build/imx/u-boot_boot_script | $(ROOT)/out
 	$(U-BOOT_PATH)/tools/mkimage -T script -C none -n 'Boot script' \
 		-d $< $@

 ################################################################################
 # Flash images
 ################################################################################
 USE_PERSISTENT_ROOTFS ?= 0

 # Configuration of the BOOT partition
 FLASH_PARTITIONS_BLOCK_SIZE = 512
 FLASH_PARTITION_BOOT_START_BLOCK = 16384
 FLASH_PARTITION_BOOT_SIZE_IN_BYTES = \
 	$(shell echo $$(( 64 * 1024 * 1024 )))
 FLASH_PARTITION_BOOT_SIZE_IN_BLOCKS = \
 	$(shell echo $$(( $(FLASH_PARTITION_BOOT_SIZE_IN_BYTES) / $(FLASH_PARTITIONS_BLOCK_SIZE) )))
 FLASH_PARTITIONS_TABLE = "\
 	start=$(FLASH_PARTITION_BOOT_START_BLOCK) \
 	size=$(FLASH_PARTITION_BOOT_SIZE_IN_BLOCKS) \
 	type=7\n"
 FLASH_IMAGE_SIZE = \
 	$(shell echo $$(( $(FLASH_PARTITION_BOOT_START_BLOCK) * $(FLASH_PARTITIONS_BLOCK_SIZE) \
 	+ $(FLASH_PARTITION_BOOT_SIZE_IN_BYTES) )))

 # Configuration of the ROOTFS partition if enabled
 ifeq ($(USE_PERSISTENT_ROOTFS),1)
 FLASH_PARTITION_ROOTFS_IMAGE_PATH = $(ROOT)/out-br/images/rootfs.ext4
 FLASH_PARTITION_ROOTFS_START_BLOCK = \
 	$(shell echo $$(( $(FLASH_PARTITION_BOOT_START_BLOCK) + $(FLASH_PARTITION_BOOT_SIZE_IN_BLOCKS) )))
 FLASH_PARTITION_ROOTFS_SIZE_IN_BYTES = \
 	$(shell stat -L --printf="%s" $(FLASH_PARTITION_ROOTFS_IMAGE_PATH))
 FLASH_PARTITION_ROOTFS_SIZE_IN_BLOCKS = \
 	$(shell echo $$(( $(FLASH_PARTITION_ROOTFS_SIZE_IN_BYTES) / $(FLASH_PARTITIONS_BLOCK_SIZE) )))
 FLASH_PARTITIONS_TABLE += "\
 	start=$(FLASH_PARTITION_ROOTFS_START_BLOCK) \
 	size=$(FLASH_PARTITION_ROOTFS_SIZE_IN_BLOCKS) \
 	type=83\n"
 FLASH_IMAGE_SIZE := $(shell echo $$(( $(FLASH_IMAGE_SIZE) + $(FLASH_PARTITION_ROOTFS_SIZE_IN_BYTES) )))
 endif

 .PHONY: flash-image
 flash-image: buildroot mkimage linux
 	$(MAKE) flash-image-only

 .PHONY: flash-image-only
 flash-image-only: $(ROOT)/out-br/images/ramdisk.img $(ROOT)/out/boot.scr
 	rm -f $(BOOT_IMG)
 	truncate -s $(FLASH_IMAGE_SIZE) $(BOOT_IMG)
 	echo -ne $(FLASH_PARTITIONS_TABLE) | sfdisk $(BOOT_IMG)
 	mformat -i $(BOOT_IMG).fat -n 64 -h 255 -T 131072 -v "BOOT IMG" -C ::
 	mcopy -i $(BOOT_IMG).fat $(LINUX_PATH)/arch/arm64/boot/Image ::
 	mcopy -i $(BOOT_IMG).fat \
 		$(LINUX_PATH)/arch/arm64/boot/dts/freescale/imx8mq-evk.dtb ::
 	mcopy -i $(BOOT_IMG).fat $(ROOT)/out/boot.scr ::

 ifeq ($(USE_PERSISTENT_ROOTFS),1)
 	dd if=$(FLASH_PARTITION_ROOTFS_IMAGE_PATH) of=$(BOOT_IMG) bs=$(FLASH_PARTITIONS_BLOCK_SIZE) \
 		seek=$(FLASH_PARTITION_ROOTFS_START_BLOCK) conv=fsync,notrunc
 else
 	mcopy -i $(BOOT_IMG).fat $(ROOT)/out-br/images/ramdisk.img ::
 endif

 	dd if=$(BOOT_IMG).fat of=$(BOOT_IMG) bs=$(FLASH_PARTITIONS_BLOCK_SIZE) \
 		seek=$(FLASH_PARTITION_BOOT_START_BLOCK) conv=fsync,notrunc
 	dd if=$(ROOT)/imx-mkimage/iMX8M/flash.bin of=$(BOOT_IMG) bs=1k seek=33 \
 		conv=fsync,notrunc
	################################################################################
	# Following variables defines how the NS_USER (Non Secure User - Client
	# Application), NS_KERNEL (Non Secure Kernel), S_KERNEL (Secure Kernel) and
	# S_USER (Secure User - TA) are compiled
	################################################################################
	override COMPILE_NS_USER := 64
	override COMPILE_NS_KERNEL := 64
	override COMPILE_S_USER := 64
	override COMPILE_S_KERNEL := 64

	OPTEE_OS_PLATFORM = imx-mx8mqevk
	BR2_TARGET_GENERIC_GETTY_PORT = ttymxc0
	BR2_TARGET_ROOTFS_EXT2=y
	BR2_TARGET_ROOTFS_EXT2_4=y

	include common.mk

	################################################################################
	# Paths to git projects and various binaries
	################################################################################
	TF_A_PATH ?= $(ROOT)/trusted-firmware-a

	U-BOOT_PATH ?= $(ROOT)/u-boot
	U-BOOT_BIN ?= $(U-BOOT_PATH)/u-boot.bin

	FIRMWARE_BIN_SHA256_SUM ?= 63ec62f5d229cbed00918c8449173933f1c9d594c59396b8dd217e94f47138b0
	FIRMWARE_BIN ?= firmware-imx-8.0.bin
	FIRMWARE_BIN ?= firmware-imx-8.0.bin
	FIRMWARE_BIN_URL ?= https://www.nxp.com/lgfiles/NMG/MAD/YOCTO/$(FIRMWARE_BIN)
	FIRMWARE_VERSION ?= firmware-imx-8.0
	FIRMWARE_PATH ?= $(ROOT)/out-firmware/$(FIRMWARE_VERSION)
	LPDDR_BIN_PATH ?= $(FIRMWARE_PATH)/firmware/ddr/synopsys

	MKIMAGE_PATH ?= $(ROOT)/imx-mkimage
	BOOT_IMG ?= $(ROOT)/out/boot.img

	################################################################################
	# Targets
	################################################################################
	all: tfa u-boot linux optee-os buildroot flash-image
	clean: tfa-clean buildroot-clean u-boot-clean optee-os-clean

	include toolchain.mk

	################################################################################
	# ARM Trusted Firmware
	################################################################################
	TF_A_EXPORTS = CROSS_COMPILE="$(CCACHE)$(AARCH64_CROSS_COMPILE)"

	# BL32=$(OPTEE_OS_HEADER_V2_BIN) \
	# BL32_EXTRA1=$(OPTEE_OS_PAGER_V2_BIN) \
	# BL32_EXTRA2=$(OPTEE_OS_PAGEABLE_V2_BIN) \

	TF_A_FLAGS = PLAT=imx8mq SPD=opteed DEBUG_CONSOLE=1 DEBUG=0 V=1
	TF_A_FLAGS += BL32=$(ROOT)/optee_os/out/arm/core/tee-raw.bin

	tfa: optee-os u-boot
	$(TF_A_EXPORTS) $(MAKE) -C $(TF_A_PATH) $(TF_A_FLAGS) all fip

	tfa-clean:
	$(TF_A_EXPORTS) $(MAKE) -C $(TF_A_PATH) $(TF_A_FLAGS) clean

	################################################################################
	# U-Boot
	################################################################################

	U-BOOT_EXPORTS = CROSS_COMPILE="$(CCACHE)$(AARCH64_CROSS_COMPILE)"

	U-BOOT_DEFCONFIG_FILES := $(U-BOOT_PATH)/configs/imx8mq_evk_defconfig \
	$(BUILD_PATH)/kconfigs/uboot_imx8.conf

	$(U-BOOT_PATH)/.config: $(U-BOOT_DEFCONFIG_FILES)
	$(U-BOOT_EXPORTS) $(MAKE) -C $(U-BOOT_PATH) imx8mq_evk_defconfig
	(cd $(U-BOOT_PATH) && \
	ARCH=arm64 \
	scripts/kconfig/merge_config.sh $(U-BOOT_DEFCONFIG_FILES))

	.PHONY: u-boot-defconfig
	u-boot-defconfig: $(U-BOOT_PATH)/.config

	.PHONY: u-boot
	u-boot: u-boot-defconfig
	$(U-BOOT_EXPORTS) $(MAKE) -C $(U-BOOT_PATH)

	.PHONY: u-boot-clean
	u-boot-clean:
	cd $(U-BOOT_PATH) && git clean -xdf

	.PHONY: u-boot-cscope
	u-boot-cscope:
	$(U-BOOT_EXPORTS) $(MAKE) -C $(U-BOOT_PATH) cscope


	################################################################################
	# Linux kernel
	################################################################################
	LINUX_DEFCONFIG_COMMON_ARCH := arm64
	LINUX_DEFCONFIG_COMMON_FILES := \
	$(LINUX_PATH)/arch/arm64/configs/defconfig \
	$(CURDIR)/kconfigs/imx.conf

	linux-defconfig: $(LINUX_PATH)/.config

	LINUX_COMMON_FLAGS += ARCH=arm64

	linux: linux-common

	linux-defconfig-clean: linux-defconfig-clean-common

	LINUX_CLEAN_COMMON_FLAGS += ARCH=arm64

	linux-clean: linux-clean-common

	LINUX_CLEANER_COMMON_FLAGS += ARCH=arm64

	linux-cleaner: linux-cleaner-common

	################################################################################
	# OP-TEE
	################################################################################
	optee-os: optee-os-common
	optee-os-clean: optee-os-clean-common

	################################################################################
	# DDR firmware
	################################################################################
	# This is prebuilt binaries by NXP, download them and use them. Update path if
	# it changes in the future.

	$(ROOT)/out-firmware/$(FIRMWARE_BIN):
	mkdir -p $(ROOT)/out-firmware
	(cd $(ROOT)/out-firmware && wget $(FIRMWARE_BIN_URL))

	$(FIRMWARE_PATH)/.unpacked: $(ROOT)/out-firmware/$(FIRMWARE_BIN)
	(cd $(ROOT)/out-firmware && \
	echo $(FIRMWARE_BIN_SHA256_SUM) $(FIRMWARE_BIN) \| sha256sum -c)
	(cd $(ROOT)/out-firmware && \
	chmod 711 $(FIRMWARE_BIN) && ./$(FIRMWARE_BIN) --auto-accept)
	touch $(FIRMWARE_PATH)/.unpacked

	.PHONY: ddr-firmware
	ddr-firmware: $(FIRMWARE_PATH)/.unpacked

	ddr-firmware-clean:
	rm -rf $(ROOT)/out-firmware

	################################################################################
	# imx-mkimage
	################################################################################
	mkimage: u-boot tfa ddr-firmware
	ln -sf $(ROOT)/optee_os/out/arm/core/tee-raw.bin \
	$(MKIMAGE_PATH)/iMX8M/tee.bin
	ln -sf $(ROOT)/trusted-firmware-a/build/imx8mq/release/bl31.bin \
	$(MKIMAGE_PATH)/iMX8M/
	ln -sf $(LPDDR_BIN_PATH)/lpddr4_pmu_train_*.bin $(MKIMAGE_PATH)/iMX8M/
	ln -sf $(U-BOOT_PATH)/u-boot-nodtb.bin $(MKIMAGE_PATH)/iMX8M/
	ln -sf $(U-BOOT_PATH)/spl/u-boot-spl.bin $(MKIMAGE_PATH)/iMX8M/
	ln -sf $(U-BOOT_PATH)/arch/arm/dts/imx8mq-evk.dtb \
	$(MKIMAGE_PATH)/iMX8M/fsl-imx8mq-evk.dtb
	ln -sf $(U-BOOT_PATH)/tools/mkimage $(MKIMAGE_PATH)/iMX8M/mkimage_uboot
	$(MAKE) -C $(MKIMAGE_PATH) SOC=iMX8M flash_spl_uboot
	#> +If you want to run with HDMI, copy signed_hdmi_imx8m.bin to imx-mkimage/iMX8M
	#> +make SOC=iMX8M flash_spl_uboot or make SOC=iMX8M flash_hdmi_spl_uboot to
	#> +generate flash.bin.
	mkimage-clean:
	cd $(MKIMAGE_PATH) && git clean -xdf
	rm -f $(ROOT)/build/mkimage_imx8

	$(ROOT)/out-br/images/ramdisk.img: $(ROOT)/out-br/images/rootfs.cpio.gz
	$(U-BOOT_PATH)/tools/mkimage -A arm64 -O linux -T ramdisk -C gzip \
	-d $< $@

	$(ROOT)/out:
	mkdir -p $@

	$(ROOT)/out/boot.scr: $(ROOT)/build/imx/u-boot_boot_script \| $(ROOT)/out
	$(U-BOOT_PATH)/tools/mkimage -T script -C none -n 'Boot script' \
	-d $< $@

	################################################################################
	# Flash images
	################################################################################
	USE_PERSISTENT_ROOTFS ?= 0

	# Configuration of the BOOT partition
	FLASH_PARTITIONS_BLOCK_SIZE = 512
	FLASH_PARTITION_BOOT_START_BLOCK = 16384
	FLASH_PARTITION_BOOT_SIZE_IN_BYTES = \
	$(shell echo $$(( 64 * 1024 * 1024 )))
	FLASH_PARTITION_BOOT_SIZE_IN_BLOCKS = \
	$(shell echo $$(( $(FLASH_PARTITION_BOOT_SIZE_IN_BYTES) / $(FLASH_PARTITIONS_BLOCK_SIZE) )))
	FLASH_PARTITIONS_TABLE = "\
	start=$(FLASH_PARTITION_BOOT_START_BLOCK) \
	size=$(FLASH_PARTITION_BOOT_SIZE_IN_BLOCKS) \
	type=7\n"
	FLASH_IMAGE_SIZE = \
	$(shell echo $$(( $(FLASH_PARTITION_BOOT_START_BLOCK) * $(FLASH_PARTITIONS_BLOCK_SIZE) \
	+ $(FLASH_PARTITION_BOOT_SIZE_IN_BYTES) )))

	# Configuration of the ROOTFS partition if enabled
	ifeq ($(USE_PERSISTENT_ROOTFS),1)
	FLASH_PARTITION_ROOTFS_IMAGE_PATH = $(ROOT)/out-br/images/rootfs.ext4
	FLASH_PARTITION_ROOTFS_START_BLOCK = \
	$(shell echo $$(( $(FLASH_PARTITION_BOOT_START_BLOCK) + $(FLASH_PARTITION_BOOT_SIZE_IN_BLOCKS) )))
	FLASH_PARTITION_ROOTFS_SIZE_IN_BYTES = \
	$(shell stat -L --printf="%s" $(FLASH_PARTITION_ROOTFS_IMAGE_PATH))
	FLASH_PARTITION_ROOTFS_SIZE_IN_BLOCKS = \
	$(shell echo $$(( $(FLASH_PARTITION_ROOTFS_SIZE_IN_BYTES) / $(FLASH_PARTITIONS_BLOCK_SIZE) )))
	FLASH_PARTITIONS_TABLE += "\
	start=$(FLASH_PARTITION_ROOTFS_START_BLOCK) \
	size=$(FLASH_PARTITION_ROOTFS_SIZE_IN_BLOCKS) \
	type=83\n"
	FLASH_IMAGE_SIZE := $(shell echo $$(( $(FLASH_IMAGE_SIZE) + $(FLASH_PARTITION_ROOTFS_SIZE_IN_BYTES) )))
	endif

	.PHONY: flash-image
	flash-image: buildroot mkimage linux
	$(MAKE) flash-image-only

	.PHONY: flash-image-only
	flash-image-only: $(ROOT)/out-br/images/ramdisk.img $(ROOT)/out/boot.scr
	rm -f $(BOOT_IMG)
	truncate -s $(FLASH_IMAGE_SIZE) $(BOOT_IMG)
	echo -ne $(FLASH_PARTITIONS_TABLE) \| sfdisk $(BOOT_IMG)
	mformat -i $(BOOT_IMG).fat -n 64 -h 255 -T 131072 -v "BOOT IMG" -C ::
	mcopy -i $(BOOT_IMG).fat $(LINUX_PATH)/arch/arm64/boot/Image ::
	mcopy -i $(BOOT_IMG).fat \
	$(LINUX_PATH)/arch/arm64/boot/dts/freescale/imx8mq-evk.dtb ::
	mcopy -i $(BOOT_IMG).fat $(ROOT)/out/boot.scr ::

	ifeq ($(USE_PERSISTENT_ROOTFS),1)
	dd if=$(FLASH_PARTITION_ROOTFS_IMAGE_PATH) of=$(BOOT_IMG) bs=$(FLASH_PARTITIONS_BLOCK_SIZE) \
	seek=$(FLASH_PARTITION_ROOTFS_START_BLOCK) conv=fsync,notrunc
	else
	mcopy -i $(BOOT_IMG).fat $(ROOT)/out-br/images/ramdisk.img ::
	endif

	dd if=$(BOOT_IMG).fat of=$(BOOT_IMG) bs=$(FLASH_PARTITIONS_BLOCK_SIZE) \
	seek=$(FLASH_PARTITION_BOOT_START_BLOCK) conv=fsync,notrunc
	dd if=$(ROOT)/imx-mkimage/iMX8M/flash.bin of=$(BOOT_IMG) bs=1k seek=33 \
	conv=fsync,notrunc