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scripts: Makefile: add support to use external DTC

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Add support to use external DTC to compile device tree blobs.

Change-Id: I268d2332d5328c3b0050b35c96f91e8ef9e1f6f8
Signed-off-by: Shashank Mittal <mittals@codeaurora.org>
Signed-off-by: Puja Gupta <pujag@codeaurora.org>
This commit is contained in:
Puja Gupta
2017-02-10 15:15:23 -08:00
committed by Jeevan Shriram
parent 2478b6126b
commit fd881362c4
2 changed files with 8 additions and 0 deletions
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6
scripts/Makefile.lib
View File

@@ -292,6 +292,12 @@ cmd_dt_S_dtb= \
$(obj)/%.dtb.S: $(obj)/%.dtb FORCE $(obj)/%.dtb.S: $(obj)/%.dtb FORCE
$(call if_changed,dt_S_dtb) $(call if_changed,dt_S_dtb)
ifneq ($(DTC_EXT),)
DTC = $(DTC_EXT)
else
DTC = $(objtree)/scripts/dtc/dtc
endif
quiet_cmd_dtc = DTC $@ quiet_cmd_dtc = DTC $@
cmd_dtc = mkdir -p $(dir ${dtc-tmp}) ; \ cmd_dtc = mkdir -p $(dir ${dtc-tmp}) ; \
$(CPP) $(dtc_cpp_flags) -x assembler-with-cpp -o $(dtc-tmp) $< ; \ $(CPP) $(dtc_cpp_flags) -x assembler-with-cpp -o $(dtc-tmp) $< ; \

2
scripts/dtc/Makefile
View File

@@ -2,7 +2,9 @@
# scripts/dtc makefile # scripts/dtc makefile
hostprogs-y := dtc hostprogs-y := dtc
ifeq ($(DTC_EXT),)
always := $(hostprogs-y) always := $(hostprogs-y)
endif
dtc-objs := dtc.o flattree.o fstree.o data.o livetree.o treesource.o \ dtc-objs := dtc.o flattree.o fstree.o data.o livetree.o treesource.o \
srcpos.o checks.o util.o srcpos.o checks.o util.o