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Tom Rini83d290c2018-05-06 17:58:06 -04001# SPDX-License-Identifier: GPL-2.0+
Simon Glassbbb0b122011-10-15 05:48:21 +00002#
3# Copyright (c) 2011 The Chromium OS Authors.
Simon Glassbbb0b122011-10-15 05:48:21 +00004
5# This Makefile builds the internal U-Boot fdt if CONFIG_OF_CONTROL is
6# enabled. See doc/README.fdt-control for more details.
7
Masahiro Yamadaefcf8612014-02-04 17:24:40 +09008DEVICE_TREE ?= $(CONFIG_DEFAULT_DEVICE_TREE:"%"=%)
9ifeq ($(DEVICE_TREE),)
Masahiro Yamada3284c8b2014-02-05 11:28:27 +090010DEVICE_TREE := unset
Masahiro Yamadaefcf8612014-02-04 17:24:40 +090011endif
Simon Glassbbb0b122011-10-15 05:48:21 +000012
James Balean27cb7302017-03-15 23:11:31 -050013ARCH_PATH := arch/$(ARCH)/dts
14dtb_depends := arch-dtbs
15
Simon Glassd18926a2014-06-12 07:24:43 -060016ifneq ($(EXT_DTB),)
17DTB := $(EXT_DTB)
Simon Glass63b4b5b2014-06-02 22:04:50 -060018else
James Balean27cb7302017-03-15 23:11:31 -050019DTB := $(ARCH_PATH)/$(DEVICE_TREE).dtb
20dtb_depends += $(DTB:.dtb=.dts)
Simon Glass63b4b5b2014-06-02 22:04:50 -060021endif
Simon Glassbbb0b122011-10-15 05:48:21 +000022
Goldschmidt Simon9bd76b82017-11-21 12:29:56 +000023$(obj)/dt-spl.dtb: $(DTB) $(objtree)/tools/fdtgrep FORCE
24 $(call if_changed,fdtgrep)
25
Masahiro Yamada3284c8b2014-02-05 11:28:27 +090026$(obj)/dt.dtb: $(DTB) FORCE
Masahiro Yamadab9d1dbd2014-06-04 10:11:18 +090027 $(call if_changed,shipped)
Simon Glassbbb0b122011-10-15 05:48:21 +000028
Goldschmidt Simon9bd76b82017-11-21 12:29:56 +000029targets += dt.dtb dt-spl.dtb
Simon Glassbbb0b122011-10-15 05:48:21 +000030
James Balean27cb7302017-03-15 23:11:31 -050031$(DTB): $(dtb_depends)
32ifeq ($(EXT_DTB),)
33 $(Q)$(MAKE) $(build)=$(ARCH_PATH) $@
34endif
Masahiro Yamada3284c8b2014-02-05 11:28:27 +090035 $(Q)test -e $@ || ( \
36 echo >&2; \
37 echo >&2 "Device Tree Source is not correctly specified."; \
38 echo >&2 "Please define 'CONFIG_DEFAULT_DEVICE_TREE'"; \
39 echo >&2 "or build with 'DEVICE_TREE=<device_tree>' argument"; \
40 echo >&2; \
41 /bin/false)
42
43arch-dtbs:
James Balean27cb7302017-03-15 23:11:31 -050044 $(Q)$(MAKE) $(build)=$(ARCH_PATH) dtbs
Masahiro Yamada6ab6b2a2014-02-05 11:28:25 +090045
Goldschmidt Simon9bd76b82017-11-21 12:29:56 +000046ifeq ($(CONFIG_SPL_BUILD),y)
47obj-$(CONFIG_OF_EMBED) := dt-spl.dtb.o
48# support "out-of-tree" build for dtb-spl
49$(obj)/dt-spl.dtb.o: $(obj)/dt-spl.dtb.S FORCE
50 $(call if_changed_dep,as_o_S)
51else
Masahiro Yamada6ab6b2a2014-02-05 11:28:25 +090052obj-$(CONFIG_OF_EMBED) := dt.dtb.o
Goldschmidt Simon9bd76b82017-11-21 12:29:56 +000053endif
Masahiro Yamada6ab6b2a2014-02-05 11:28:25 +090054
Goldschmidt Simon9bd76b82017-11-21 12:29:56 +000055dtbs: $(obj)/dt.dtb $(obj)/dt-spl.dtb
Masahiro Yamada6ab6b2a2014-02-05 11:28:25 +090056 @:
57
Goldschmidt Simon9bd76b82017-11-21 12:29:56 +000058clean-files := dt.dtb.S dt-spl.dtb.S
Masahiro Yamada3284c8b2014-02-05 11:28:27 +090059
60# Let clean descend into dts directories
Lukas Auer17f2ffe2018-11-22 11:26:11 +010061subdir- += ../arch/arm/dts ../arch/microblaze/dts ../arch/mips/dts ../arch/sandbox/dts ../arch/x86/dts ../arch/powerpc/dts ../arch/riscv/dts