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#
# Copyright (c) 2011 The Chromium OS Authors.
#
# SPDX-License-Identifier: GPL-2.0+
#
# This Makefile builds the internal U-Boot fdt if CONFIG_OF_CONTROL is
# enabled. See doc/README.fdt-control for more details.
DEVICE_TREE ?= $(CONFIG_DEFAULT_DEVICE_TREE:"%"=%)
ifeq ($(DEVICE_TREE),)
DEVICE_TREE := notfound
endif
DTS := $(srctree)/board/$(VENDOR)/dts/$(DEVICE_TREE).dts
DTC_FLAGS += -i $(srctree)/arch/$(ARCH)/dts -R 4 -p 0x1000
$(obj)/dt.dtb: $(DTS) FORCE
$(call if_changed_dep,dtc)
targets += dt.dtb
$(DTS):
@echo >&2
@echo >&2 "Device Tree Source is not specified."
@echo >&2 "Please define 'CONFIG_DEFAULT_DEVICE_TREE'"
@echo >&2 "or build with 'DEVICE_TREE=<dts-file-name>' argument"
@/bin/false
.SECONDARY: $(obj)/dt.dtb.S
obj-$(CONFIG_OF_EMBED) := dt.dtb.o
dtbs: $(obj)/dt.dtb
@:
clean-files := dt.dtb.S
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