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- #
- # Copyright (c) 2011 The Chromium OS Authors.
- #
- # SPDX-License-Identifier: GPL-2.0+
- #
- # This Makefile builds the internal U-Boot fdt if CONFIG_OF_CONTROL is
- # enabled. See doc/README.fdt-control for more details.
- DEVICE_TREE ?= $(CONFIG_DEFAULT_DEVICE_TREE:"%"=%)
- ifeq ($(DEVICE_TREE),)
- DEVICE_TREE := notfound
- endif
- DTS := $(srctree)/board/$(VENDOR)/dts/$(DEVICE_TREE).dts
- DTC_FLAGS += -i $(srctree)/arch/$(ARCH)/dts -R 4 -p 0x1000
- $(obj)/dt.dtb: $(DTS) FORCE
- $(call if_changed_dep,dtc)
- targets += dt.dtb
- $(DTS):
- @echo >&2
- @echo >&2 "Device Tree Source is not specified."
- @echo >&2 "Please define 'CONFIG_DEFAULT_DEVICE_TREE'"
- @echo >&2 "or build with 'DEVICE_TREE=<dts-file-name>' argument"
- @/bin/false
- .SECONDARY: $(obj)/dt.dtb.S
- obj-$(CONFIG_OF_EMBED) := dt.dtb.o
- dtbs: $(obj)/dt.dtb
- @:
- clean-files := dt.dtb.S
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