2 # Copyright (c) 2011 The Chromium OS Authors.
4 # SPDX-License-Identifier: GPL-2.0+
7 # This Makefile builds the internal U-Boot fdt if CONFIG_OF_CONTROL is
8 # enabled. See doc/README.fdt-control for more details.
10 DEVICE_TREE ?
= $(CONFIG_DEFAULT_DEVICE_TREE
:"%"=%)
11 ifeq ($(DEVICE_TREE
),)
18 DTB
:= arch
/$(ARCH
)/dts
/$(DEVICE_TREE
).dtb
21 $(obj
)/dt.dtb
: $(DTB
) FORCE
22 $(call if_changed
,shipped
)
29 echo
>&2 "Device Tree Source is not correctly specified."; \
30 echo
>&2 "Please define 'CONFIG_DEFAULT_DEVICE_TREE'"; \
31 echo
>&2 "or build with 'DEVICE_TREE=<device_tree>' argument"; \
36 $(Q
)$(MAKE
) $(build
)=arch
/$(ARCH
)/dts dtbs
38 .SECONDARY
: $(obj
)/dt.dtb.S
40 obj-
$(CONFIG_OF_EMBED
) := dt.dtb.o
45 clean-files
:= dt.dtb.S
47 # Let clean descend into dts directories
48 subdir-
+= ..
/arch
/arm
/dts ..
/arch
/microblaze
/dts ..
/arch
/mips
/dts ..
/arch
/sandbox
/dts ..
/arch
/x86
/dts