| # | |
| # 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=<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/mips/dts ../arch/sandbox/dts ../arch/x86/dts |