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@@ -12,10 +12,14 @@ 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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+
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ifneq ($(EXT_DTB),)
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DTB := $(EXT_DTB)
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else
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-DTB := arch/$(ARCH)/dts/$(DEVICE_TREE).dtb
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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.dtb: $(DTB) FORCE
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@@ -23,7 +27,10 @@ $(obj)/dt.dtb: $(DTB) FORCE
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targets += dt.dtb
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-$(DTB): arch-dtbs
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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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@@ -33,7 +40,7 @@ $(DTB): arch-dtbs
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/bin/false)
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arch-dtbs:
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- $(Q)$(MAKE) $(build)=arch/$(ARCH)/dts dtbs
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+ $(Q)$(MAKE) $(build)=$(ARCH_PATH) dtbs
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.SECONDARY: $(obj)/dt.dtb.S
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