56 lines
1.4 KiB
Makefile
56 lines
1.4 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0+
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#
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# Copyright (c) 2011 The Chromium OS Authors.
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# This Makefile builds the internal U-Boot fdt if CONFIG_OF_CONTROL is
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# enabled. See doc/README.fdt-control for more details.
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DEVICE_TREE ?= $(CONFIG_DEFAULT_DEVICE_TREE:"%"=%)
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ifeq ($(DEVICE_TREE),)
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DEVICE_TREE := unset
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endif
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ifneq ($(EXT_DTB),)
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DTB := $(EXT_DTB)
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else
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DTB := arch/$(ARCH)/dts/$(DEVICE_TREE).dtb
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endif
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$(obj)/dt-spl.dtb: $(DTB) $(objtree)/tools/fdtgrep FORCE
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$(call if_changed,fdtgrep)
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$(obj)/dt.dtb: $(DTB) FORCE
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$(call if_changed,shipped)
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targets += dt.dtb dt-spl.dtb
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$(DTB): arch-dtbs
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$(Q)test -e $@ || ( \
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echo >&2; \
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echo >&2 "Device Tree Source is not correctly specified."; \
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echo >&2 "Please define 'CONFIG_DEFAULT_DEVICE_TREE'"; \
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echo >&2 "or build with 'DEVICE_TREE=<device_tree>' argument"; \
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echo >&2; \
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/bin/false)
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PHONY += arch-dtbs
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arch-dtbs:
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$(Q)$(MAKE) $(build)=arch/$(ARCH)/dts dtbs
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ifeq ($(CONFIG_SPL_BUILD),y)
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obj-$(CONFIG_OF_EMBED) := dt-spl.dtb.o
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# support "out-of-tree" build for dtb-spl
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$(obj)/dt-spl.dtb.o: $(obj)/dt-spl.dtb.S FORCE
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$(call if_changed_dep,as_o_S)
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else
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obj-$(CONFIG_OF_EMBED) := dt.dtb.o
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endif
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dtbs: $(obj)/dt.dtb $(obj)/dt-spl.dtb
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@:
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clean-files := dt.dtb.S dt-spl.dtb.S
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# Let clean descend into dts directories
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subdir- += ../arch/arm/dts ../arch/microblaze/dts ../arch/mips/dts ../arch/sandbox/dts ../arch/x86/dts ../arch/powerpc/dts ../arch/riscv/dts
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