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64 lines
1.5 KiB
64 lines
1.5 KiB
# SPDX-License-Identifier: GPL-2.0+ |
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# |
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# Copyright (c) 2011 The Chromium OS Authors. |
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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 := unset |
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endif |
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ARCH_PATH := arch/$(ARCH)/dts |
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dtb_depends := arch-dtbs |
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ifneq ($(EXT_DTB),) |
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DTB := $(EXT_DTB) |
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else |
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DTB := $(ARCH_PATH)/$(DEVICE_TREE).dtb |
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dtb_depends += $(DTB:.dtb=.dts) |
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endif |
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$(obj)/dt-spl.dtb: $(DTB) $(objtree)/tools/fdtgrep FORCE |
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$(call if_changed,fdtgrep) |
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$(obj)/dt.dtb: $(DTB) FORCE |
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$(call if_changed,shipped) |
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targets += dt.dtb dt-spl.dtb |
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$(DTB): $(dtb_depends) |
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ifeq ($(EXT_DTB),) |
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$(Q)$(MAKE) $(build)=$(ARCH_PATH) $@ |
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endif |
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$(Q)test -e $@ || ( \ |
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echo >&2; \ |
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echo >&2 "Device Tree Source is not correctly specified."; \ |
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echo >&2 "Please define 'CONFIG_DEFAULT_DEVICE_TREE'"; \ |
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echo >&2 "or build with 'DEVICE_TREE=<device_tree>' argument"; \ |
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echo >&2; \ |
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/bin/false) |
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arch-dtbs: |
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$(Q)$(MAKE) $(build)=$(ARCH_PATH) dtbs |
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.SECONDARY: $(obj)/dt.dtb.S $(obj)/dt-spl.dtb.S |
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ifeq ($(CONFIG_SPL_BUILD),y) |
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obj-$(CONFIG_OF_EMBED) := dt-spl.dtb.o |
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# support "out-of-tree" build for dtb-spl |
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$(obj)/dt-spl.dtb.o: $(obj)/dt-spl.dtb.S FORCE |
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$(call if_changed_dep,as_o_S) |
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else |
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obj-$(CONFIG_OF_EMBED) := dt.dtb.o |
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endif |
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dtbs: $(obj)/dt.dtb $(obj)/dt-spl.dtb |
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@: |
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clean-files := dt.dtb.S dt-spl.dtb.S |
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# Let clean descend into dts directories |
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subdir- += ../arch/arm/dts ../arch/microblaze/dts ../arch/mips/dts ../arch/sandbox/dts ../arch/x86/dts
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