1bbb0b128SSimon Glass# 2bbb0b128SSimon Glass# Copyright (c) 2011 The Chromium OS Authors. 3bbb0b128SSimon Glass# 41a459660SWolfgang Denk# SPDX-License-Identifier: GPL-2.0+ 5bbb0b128SSimon Glass# 6bbb0b128SSimon Glass 7bbb0b128SSimon Glass# This Makefile builds the internal U-Boot fdt if CONFIG_OF_CONTROL is 8bbb0b128SSimon Glass# enabled. See doc/README.fdt-control for more details. 9bbb0b128SSimon Glass 10efcf8619SMasahiro YamadaDEVICE_TREE ?= $(CONFIG_DEFAULT_DEVICE_TREE:"%"=%) 11efcf8619SMasahiro Yamadaifeq ($(DEVICE_TREE),) 12*3284c8b8SMasahiro YamadaDEVICE_TREE := unset 13efcf8619SMasahiro Yamadaendif 14bbb0b128SSimon Glass 15*3284c8b8SMasahiro YamadaDTB := arch/$(ARCH)/dts/$(DEVICE_TREE).dtb 16bbb0b128SSimon Glass 17*3284c8b8SMasahiro Yamadaquiet_cmd_copy = COPY $@ 18*3284c8b8SMasahiro Yamada cmd_copy = cp $< $@ 19bbb0b128SSimon Glass 20*3284c8b8SMasahiro Yamada$(obj)/dt.dtb: $(DTB) FORCE 21*3284c8b8SMasahiro Yamada $(call if_changed,copy) 22bbb0b128SSimon Glass 236ab6b2afSMasahiro Yamadatargets += dt.dtb 24bbb0b128SSimon Glass 25*3284c8b8SMasahiro Yamada$(DTB): arch-dtbs 26*3284c8b8SMasahiro Yamada $(Q)test -e $@ || ( \ 27*3284c8b8SMasahiro Yamada echo >&2; \ 28*3284c8b8SMasahiro Yamada echo >&2 "Device Tree Source is not correctly specified."; \ 29*3284c8b8SMasahiro Yamada echo >&2 "Please define 'CONFIG_DEFAULT_DEVICE_TREE'"; \ 30*3284c8b8SMasahiro Yamada echo >&2 "or build with 'DEVICE_TREE=<device_tree>' argument"; \ 31*3284c8b8SMasahiro Yamada echo >&2; \ 32*3284c8b8SMasahiro Yamada /bin/false) 33*3284c8b8SMasahiro Yamada 34*3284c8b8SMasahiro Yamadaarch-dtbs: 35*3284c8b8SMasahiro Yamada $(Q)$(MAKE) $(build)=arch/$(ARCH)/dts dtbs 366ab6b2afSMasahiro Yamada 376ab6b2afSMasahiro Yamada.SECONDARY: $(obj)/dt.dtb.S 386ab6b2afSMasahiro Yamada 396ab6b2afSMasahiro Yamadaobj-$(CONFIG_OF_EMBED) := dt.dtb.o 406ab6b2afSMasahiro Yamada 416ab6b2afSMasahiro Yamadadtbs: $(obj)/dt.dtb 426ab6b2afSMasahiro Yamada @: 436ab6b2afSMasahiro Yamada 446ab6b2afSMasahiro Yamadaclean-files := dt.dtb.S 45*3284c8b8SMasahiro Yamada 46*3284c8b8SMasahiro Yamada# Let clean descend into dts directories 47*3284c8b8SMasahiro Yamadasubdir- += ../arch/*/dts 48