LXR uboot/dts/Makefile

   1# SPDX-License-Identifier: GPL-2.0+
   2#
   3# Copyright (c) 2011 The Chromium OS Authors.
   4
   5# This Makefile builds the internal U-Boot fdt if CONFIG_OF_CONTROL is
   6# enabled. See doc/README.fdt-control for more details.
   7
   8DEVICE_TREE ?= $(CONFIG_DEFAULT_DEVICE_TREE:"%"=%)
   9ifeq ($(DEVICE_TREE),)
  10DEVICE_TREE := unset
  11endif
  12
  13ifneq ($(EXT_DTB),)
  14DTB := $(EXT_DTB)
  15else
  16DTB := arch/$(ARCH)/dts/$(DEVICE_TREE).dtb
  17endif
  18
  19$(obj)/dt-spl.dtb: $(DTB) $(objtree)/tools/fdtgrep FORCE
  20        $(call if_changed,fdtgrep)
  21
  22$(obj)/dt.dtb: $(DTB) FORCE
  23        $(call if_changed,shipped)
  24
  25targets += dt.dtb dt-spl.dtb
  26
  27$(DTB): arch-dtbs
  28        $(Q)test -e $@ || (                                             \
  29        echo >&2;                                                       \
  30        echo >&2 "Device Tree Source is not correctly specified.";      \
  31        echo >&2 "Please define 'CONFIG_DEFAULT_DEVICE_TREE'";          \
  32        echo >&2 "or build with 'DEVICE_TREE=<device_tree>' argument";  \
  33        echo >&2;                                                       \
  34        /bin/false)
  35
  36PHONY += arch-dtbs
  37arch-dtbs:
  38        $(Q)$(MAKE) $(build)=arch/$(ARCH)/dts dtbs
  39
  40ifeq ($(CONFIG_SPL_BUILD),y)
  41obj-$(CONFIG_OF_EMBED) := dt-spl.dtb.o
  42# support "out-of-tree" build for dtb-spl
  43$(obj)/dt-spl.dtb.o: $(obj)/dt-spl.dtb.S FORCE
  44        $(call if_changed_dep,as_o_S)
  45else
  46obj-$(CONFIG_OF_EMBED) := dt.dtb.o
  47endif
  48
  49dtbs: $(obj)/dt.dtb $(obj)/dt-spl.dtb
  50        @:
  51
  52clean-files := dt.dtb.S dt-spl.dtb.S
  53
  54# Let clean descend into dts directories
  55subdir- += ../arch/arm/dts ../arch/microblaze/dts ../arch/mips/dts ../arch/sandbox/dts ../arch/x86/dts ../arch/powerpc/dts ../arch/riscv/dts
  56