39 lines
835 B
Makefile
39 lines
835 B
Makefile
#
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# Copyright (c) 2011 The Chromium OS Authors.
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#
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# SPDX-License-Identifier: GPL-2.0+
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#
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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 := notfound
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endif
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DTS := $(srctree)/board/$(VENDOR)/dts/$(DEVICE_TREE).dts
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DTC_FLAGS += -i $(srctree)/arch/$(ARCH)/dts -R 4 -p 0x1000
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$(obj)/dt.dtb: $(DTS) FORCE
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$(call if_changed_dep,dtc)
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targets += dt.dtb
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$(DTS):
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@echo >&2
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@echo >&2 "Device Tree Source is not specified."
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@echo >&2 "Please define 'CONFIG_DEFAULT_DEVICE_TREE'"
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@echo >&2 "or build with 'DEVICE_TREE=<dts-file-name>' argument"
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@/bin/false
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.SECONDARY: $(obj)/dt.dtb.S
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obj-$(CONFIG_OF_EMBED) := dt.dtb.o
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dtbs: $(obj)/dt.dtb
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@:
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clean-files := dt.dtb.S
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