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@@ -9,24 +9,30 @@
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DEVICE_TREE ?= $(CONFIG_DEFAULT_DEVICE_TREE:"%"=%)
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ifeq ($(DEVICE_TREE),)
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-DEVICE_TREE := notfound
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+DEVICE_TREE := unset
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endif
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-DTS := $(srctree)/arch/$(ARCH)/dts/$(DEVICE_TREE).dts
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+DTB := arch/$(ARCH)/dts/$(DEVICE_TREE).dtb
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-DTC_FLAGS += -R 4 -p 0x1000
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+quiet_cmd_copy = COPY $@
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+ cmd_copy = cp $< $@
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-$(obj)/dt.dtb: $(DTS) FORCE
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- $(call if_changed_dep,dtc)
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+$(obj)/dt.dtb: $(DTB) FORCE
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+ $(call if_changed,copy)
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targets += dt.dtb
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-$(DTS):
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- @echo >&2
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- @echo >&2 "Device Tree Source is not specified."
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- @echo >&2 "Please define 'CONFIG_DEFAULT_DEVICE_TREE'"
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- @echo >&2 "or build with 'DEVICE_TREE=<dts-file-name>' argument"
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- @/bin/false
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+$(DTB): arch-dtbs
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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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+
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+arch-dtbs:
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+ $(Q)$(MAKE) $(build)=arch/$(ARCH)/dts dtbs
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.SECONDARY: $(obj)/dt.dtb.S
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@@ -36,3 +42,6 @@ dtbs: $(obj)/dt.dtb
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@:
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clean-files := dt.dtb.S
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+
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+# Let clean descend into dts directories
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+subdir- += ../arch/*/dts
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