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#Android makefile to build u-boot as a part of Android Build
# Give other modules a nice, symbolic name to use as a dependent
# Yes, there are modules that cannot build unless uboot has
# been built. Typical (only?) example: linux kernel (needs mkimage program)
.phony: build-mkenvimg build-uboot clean-uboot
PRIVATE_UBOOT_ARGS := -C $(BOOT_PATH)/u-boot ARCH=arm CROSS_COMPILE=$(CROSS_COMPILE) O=$(UBOOT_OUTPUT)
PRIVATE_OUT := $(abspath $(PRODUCT_OUT)/root)
# The next three assignments are for building mk_envimg host tool.
# BUILD_UBOOT_ENV_IMG_OUTPUT and BUILD_UBOOT_ENV_IMG_INPUT should be set
# in BoardConfig.mk and are, if they are set, added to the cmdline.
PRIVATE_UBOOT_MK_ENVIMG_ARGS := -C $(BOOT_PATH)/u-boot/tools/mk_envimg
ifneq ($(BUILD_UBOOT_ENV_IMG_OUTPUT),)
PRIVATE_UBOOT_MK_ENVIMG_ARGS += OUTPUT=$(BUILD_UBOOT_ENV_IMG_OUTPUT)
endif
ifneq ($(BUILD_UBOOT_ENV_IMG_INPUT),)
PRIVATE_UBOOT_MK_ENVIMG_ARGS += INPUT=$(BUILD_UBOOT_ENV_IMG_INPUT)
endif
# Links the uboot build into the Android build
ALL_PREBUILT += build-uboot
# Add mk_envimg to the build
ALL_PREBUILT += build-mkenvimg
# Configures, builds and installs uboot. UBOOT_DEFCONFIG usually
# comes from the BoardConfig.mk file, but can be overridden on the
# command line or by an environment variable.
# If UBOOT_DEFCONFIG is set to 'local', configuration is skipped.
# This is useful if you want to play with your own, custom configuration.
build-uboot:
ifeq ($(UBOOT_DEFCONFIG),local)
@echo Skipping uboot configuration, UBOOT_DEFCONFIG set to local
else
$(MAKE) $(PRIVATE_UBOOT_ARGS) $(UBOOT_DEFCONFIG)
endif
$(MAKE) $(PRIVATE_UBOOT_ARGS)
build-mkenvimg:
$(MAKE) $(PRIVATE_UBOOT_MK_ENVIMG_ARGS) all
# An Android clean removes the files built for the current HW configuration,
# such as u8500,
# while a clobber removes all built files (rm -rf $(OUT_DIR)).
clean clobber: clean-uboot clean-mk_envimg
clean-uboot:
$(MAKE) $(PRIVATE_UBOOT_ARGS) clean
clean-mk_envimg:
$(MAKE) $(PRIVATE_UBOOT_MK_ENVIMG_ARGS) clean
installclean: installclean-uboot
installclean-uboot:
rm -f u-boot.bin u-boot.map u-boot.srec
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