git.sur5r.net Git - u-boot/blob - dts/Makefile

   1 #
   2 # Copyright (c) 2011 The Chromium OS Authors.
   3 #
   4 # SPDX-License-Identifier:      GPL-2.0+
   5 #
   6
   7 # This Makefile builds the internal U-Boot fdt if CONFIG_OF_CONTROL is
   8 # enabled. See doc/README.fdt-control for more details.
   9
  10 DEVICE_TREE ?= $(CONFIG_DEFAULT_DEVICE_TREE:"%"=%)
  11 ifeq ($(DEVICE_TREE),)
  12 DEVICE_TREE := unset
  13 endif
  14
  15 ARCH_PATH := arch/$(ARCH)/dts
  16 dtb_depends := arch-dtbs
  17
  18 ifneq ($(EXT_DTB),)
  19 DTB := $(EXT_DTB)
  20 else
  21 DTB := $(ARCH_PATH)/$(DEVICE_TREE).dtb
  22 dtb_depends += $(DTB:.dtb=.dts)
  23 endif
  24
  25 $(obj)/dt-spl.dtb: $(DTB) $(objtree)/tools/fdtgrep FORCE
  26         $(call if_changed,fdtgrep)
  27
  28 $(obj)/dt.dtb: $(DTB) FORCE
  29         $(call if_changed,shipped)
  30
  31 targets += dt.dtb dt-spl.dtb
  32
  33 $(DTB): $(dtb_depends)
  34 ifeq ($(EXT_DTB),)
  35         $(Q)$(MAKE) $(build)=$(ARCH_PATH) $@
  36 endif
  37         $(Q)test -e $@ || (                                             \
  38         echo >&2;                                                       \
  39         echo >&2 "Device Tree Source is not correctly specified.";      \
  40         echo >&2 "Please define 'CONFIG_DEFAULT_DEVICE_TREE'";          \
  41         echo >&2 "or build with 'DEVICE_TREE=<device_tree>' argument";  \
  42         echo >&2;                                                       \
  43         /bin/false)
  44
  45 arch-dtbs:
  46         $(Q)$(MAKE) $(build)=$(ARCH_PATH) dtbs
  47
  48 .SECONDARY: $(obj)/dt.dtb.S $(obj)/dt-spl.dtb.S
  49
  50
  51 ifeq ($(CONFIG_SPL_BUILD),y)
  52 obj-$(CONFIG_OF_EMBED) := dt-spl.dtb.o
  53 # support "out-of-tree" build for dtb-spl
  54 $(obj)/dt-spl.dtb.o: $(obj)/dt-spl.dtb.S FORCE
  55         $(call if_changed_dep,as_o_S)
  56 else
  57 obj-$(CONFIG_OF_EMBED) := dt.dtb.o
  58 endif
  59
  60 dtbs: $(obj)/dt.dtb $(obj)/dt-spl.dtb
  61         @:
  62
  63 clean-files := dt.dtb.S dt-spl.dtb.S
  64
  65 # Let clean descend into dts directories
  66 subdir- += ../arch/arm/dts ../arch/microblaze/dts ../arch/mips/dts ../arch/sandbox/dts ../arch/x86/dts