# # 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 := unset endif ifneq ($(EXT_DTB),) DTB := $(EXT_DTB) else DTB := arch/$(ARCH)/dts/$(DEVICE_TREE).dtb endif $(obj)/dt.dtb: $(DTB) FORCE $(call if_changed,shipped) targets += dt.dtb $(DTB): arch-dtbs $(Q)test -e $@ || ( \ echo >&2; \ echo >&2 "Device Tree Source is not correctly specified."; \ echo >&2 "Please define 'CONFIG_DEFAULT_DEVICE_TREE'"; \ echo >&2 "or build with 'DEVICE_TREE=' argument"; \ echo >&2; \ /bin/false) arch-dtbs: $(Q)$(MAKE) $(build)=arch/$(ARCH)/dts dtbs .SECONDARY: $(obj)/dt.dtb.S obj-$(CONFIG_OF_EMBED) := dt.dtb.o dtbs: $(obj)/dt.dtb @: clean-files := dt.dtb.S # Let clean descend into dts directories subdir- += ../arch/arm/dts ../arch/microblaze/dts ../arch/sandbox/dts ../arch/x86/dts