Makefile 835 B

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  1. #
  2. # Copyright (c) 2011 The Chromium OS Authors.
  3. #
  4. # SPDX-License-Identifier: GPL-2.0+
  5. #
  6. # This Makefile builds the internal U-Boot fdt if CONFIG_OF_CONTROL is
  7. # enabled. See doc/README.fdt-control for more details.
  8. DEVICE_TREE ?= $(CONFIG_DEFAULT_DEVICE_TREE:"%"=%)
  9. ifeq ($(DEVICE_TREE),)
  10. DEVICE_TREE := notfound
  11. endif
  12. DTS := $(srctree)/board/$(VENDOR)/dts/$(DEVICE_TREE).dts
  13. DTC_FLAGS += -i $(srctree)/arch/$(ARCH)/dts -R 4 -p 0x1000
  14. $(obj)/dt.dtb: $(DTS) FORCE
  15. $(call if_changed_dep,dtc)
  16. targets += dt.dtb
  17. $(DTS):
  18. @echo >&2
  19. @echo >&2 "Device Tree Source is not specified."
  20. @echo >&2 "Please define 'CONFIG_DEFAULT_DEVICE_TREE'"
  21. @echo >&2 "or build with 'DEVICE_TREE=<dts-file-name>' argument"
  22. @/bin/false
  23. .SECONDARY: $(obj)/dt.dtb.S
  24. obj-$(CONFIG_OF_EMBED) := dt.dtb.o
  25. dtbs: $(obj)/dt.dtb
  26. @:
  27. clean-files := dt.dtb.S