1# Use this file to generate dtb.img and dtbo.img instead of using 2# BOARD_PREBUILT_DTBIMAGE_DIR. We need to keep dtb and dtbo files at the fixed 3# positions in images, so that bootloader can rely on their indexes in the 4# image. As dtbo.img must be signed with AVB tool, we generate intermediate 5# dtbo.img, and the resulting $(PRODUCT_OUT)/dtbo.img will be created with 6# Android build system, by exploiting BOARD_PREBUILT_DTBOIMAGE variable. 7 8ifneq ($(filter beagle_x15%, $(TARGET_DEVICE)),) 9 10MKDTIMG := $(realpath prebuilts/misc/$(HOST_PREBUILT_TAG)/libufdt/mkdtimg) 11DTBIMAGE := $(PRODUCT_OUT)/dtb.img 12DTBOIMAGE := $(PRODUCT_OUT)/$(DTBO_UNSIGNED) 13 14# Please keep this list fixed: add new files in the end of the list 15DTB_FILES := \ 16 $(DTB_DIR)/am57xx-beagle-x15-revc.dtb \ 17 18# Please keep this list fixed: add new files in the end of the list 19DTBO_FILES := \ 20 $(DTBO_DIR)/am57xx-evm-common.dtbo \ 21 $(DTBO_DIR)/am57xx-evm-reva3.dtbo 22 23$(DTBIMAGE): $(DTB_FILES) 24 cat $^ > $@ 25 26$(DTBOIMAGE): $(DTBO_FILES) 27 $(MKDTIMG) create $@ $^ 28 29include $(CLEAR_VARS) 30LOCAL_MODULE := dtbimage 31LOCAL_LICENSE_KINDS := legacy_notice 32LOCAL_LICENSE_CONDITIONS := notice 33LOCAL_ADDITIONAL_DEPENDENCIES := $(DTBIMAGE) 34include $(BUILD_PHONY_PACKAGE) 35 36include $(CLEAR_VARS) 37LOCAL_MODULE := dtboimage 38LOCAL_LICENSE_KINDS := legacy_notice 39LOCAL_LICENSE_CONDITIONS := notice 40LOCAL_ADDITIONAL_DEPENDENCIES := $(DTBOIMAGE) 41include $(BUILD_PHONY_PACKAGE) 42 43droidcore: dtbimage dtboimage 44 45endif 46