[PATCH v3 17/19] sh: Add separate DTB build rule

[Yoshinori Sato]

Signed-off-by: Yoshinori Sato <ysato@xxxxxxxxxxxxxxxxxxxx>
---
 arch/sh/Makefile          | 7 +++++++
 arch/sh/boot/dts/Makefile | 2 ++
 2 files changed, 9 insertions(+)

diff --git a/arch/sh/Makefile b/arch/sh/Makefile
index 8adffa8..a44e630 100644
--- a/arch/sh/Makefile
+++ b/arch/sh/Makefile
@@ -189,6 +189,13 @@ drivers-$(CONFIG_OPROFILE)	+= arch/sh/oprofile/
 
 boot := arch/sh/boot
 
+%.dtb %.dtb.S %.dtb.o: | scripts
+	$(Q)$(MAKE) $(build)=arch/sh/boot/dts arch/sh/boot/dts/$@
+
+PHONY += dtbs
+dtbs: scripts
+	$(Q)$(MAKE) $(build)=arch/sh/boot/dts
+
 cflags-y	+= $(foreach d, $(cpuincdir-y), -Iarch/sh/include/$(d)) \
 		   $(foreach d, $(machdir-y), -Iarch/sh/include/$(d))
 
diff --git a/arch/sh/boot/dts/Makefile b/arch/sh/boot/dts/Makefile
index e5ce3a0..38fdc38 100644
--- a/arch/sh/boot/dts/Makefile
+++ b/arch/sh/boot/dts/Makefile
@@ -1,3 +1,5 @@
 obj-$(CONFIG_USE_BUILTIN_DTB) += $(patsubst "%",%,$(CONFIG_BUILTIN_DTB_SOURCE)).dtb.o
 
+dtstree		:= $(srctree)/$(src)
 clean-files := *.dtb.S
+always	    := $(dtb-y)
-- 
2.7.0