1 # SPDX-License-Identifier: GPL-2.0+
3 # Copyright (c) 2011 The Chromium OS Authors.
5 # This Makefile builds the internal U-Boot fdt if CONFIG_OF_CONTROL is
6 # enabled. See doc/README.fdt-control for more details.
8 DEVICE_TREE ?
= $(CONFIG_DEFAULT_DEVICE_TREE
:"%"=%)
16 DTB
:= arch
/$(ARCH
)/dts
/$(DEVICE_TREE
).dtb
19 $(obj
)/dt-
$(SPL_NAME
).dtb
: dts
/dt.dtb
$(objtree
)/tools
/fdtgrep FORCE
21 $(call if_changed
,fdtgrep
)
23 ifeq ($(CONFIG_OF_DTB_PROPS_REMOVE
),y
)
24 $(obj
)/dt.dtb
: $(DTB
) $(objtree
)/tools
/fdtgrep FORCE
25 $(call if_changed
,fdt_rm_props
)
27 $(obj
)/dt.dtb
: $(DTB
) FORCE
28 $(call if_changed
,shipped
)
36 echo
>&2 "Device Tree Source ($@) is not correctly specified."; \
37 echo
>&2 "Please define 'CONFIG_DEFAULT_DEVICE_TREE'"; \
38 echo
>&2 "or build with 'DEVICE_TREE=<device_tree>' argument"; \
44 $(Q
)$(MAKE
) $(build
)=arch
/$(ARCH
)/dts dtbs
46 ifeq ($(CONFIG_SPL_BUILD
),y
)
47 obj-
$(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
)
52 obj-
$(CONFIG_OF_EMBED
) := dt.dtb.o
55 # Target for U-Boot proper
60 spl_dtbs
: $(obj
)/dt-
$(SPL_NAME
).dtb
63 clean-files
:= dt.dtb.S
65 # Let clean descend into dts directories
66 subdir-
+= ..
/arch
/arm
/dts ..
/arch
/microblaze
/dts ..
/arch
/mips
/dts ..
/arch
/sandbox
/dts ..
/arch
/x86
/dts ..
/arch
/powerpc
/dts ..
/arch
/riscv
/dts