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authorJonas Gorski <jogo@openwrt.org>2015-07-16 11:12:52 +0000
committerJonas Gorski <jogo@openwrt.org>2015-07-16 11:12:52 +0000
commite7b5dd0e1dd5eacd13bee7bc5da2eeea8882e668 (patch)
tree7f7e9009fc616c2818777e5f10b70e67ac1e3b16
parent491cfb06d0d2c32178d97adc0f84536a385af22d (diff)
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image.mk: add a BuildDTB define
Add a Image/BuildDTB command that takes the path to an dts file and applies the CPP using the default include directories, then uses dtc to compile the dts as the specified output file. Additional CPP and DTC flags can be supplied as additional arguments. Signed-off-by: Jonas Gorski <jogo@openwrt.org> SVN-Revision: 46389
-rw-r--r--include/image.mk16
1 files changed, 16 insertions, 0 deletions
diff --git a/include/image.mk b/include/image.mk
index 6767e76dc1..a20e090fe7 100644
--- a/include/image.mk
+++ b/include/image.mk
@@ -126,6 +126,22 @@ define Image/BuildKernel/MkFIT
PATH=$(LINUX_DIR)/scripts/dtc:$(PATH) mkimage -f $(KDIR)/fit-$(1).its $(KDIR)/fit-$(1)$(7).itb
endef
+# $(1) source dts file
+# $(2) target dtb file
+# $(3) extra CPP flags
+# $(4) extra DTC flags
+define Image/BuildDTB
+ $(CPP) -nostdinc -x assembler-with-cpp \
+ -I$(LINUX_DIR)/arch/$(ARCH)/boot/dts \
+ -I$(LINUX_DIR)/arch/$(ARCH)/boot/dts/include \
+ -undef -D__DTS__ $(3) \
+ -o $(2).tmp $(1)
+ $(LINUX_DIR)/scripts/dtc/dtc -O dtb \
+ -i$(dir $(1)) $(4) \
+ -o $(2) $(2).tmp
+ $(RM) $(2).tmp
+endef
+
define Image/mkfs/jffs2/sub
$(STAGING_DIR_HOST)/bin/mkfs.jffs2 $(3) --pad -e $(patsubst %k,%KiB,$(1)) -o $(KDIR)/root.jffs2-$(2) -d $(TARGET_DIR) -v 2>&1 1>/dev/null | awk '/^.+$$$$/'
$(call add_jffs2_mark,$(KDIR)/root.jffs2-$(2))