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authorStephen Warren <swarren@nvidia.com>2013-02-05 12:06:28 -0700
committerGrant Likely <grant.likely@secretlab.ca>2013-02-08 14:38:07 +0000
commit22435f38337ef6a8abb33574604e77c335b75d14 (patch)
tree74b2748ef47b5f126113911d7585f5b47ab80b2b /scripts/Makefile.lib
parent1d0b1c74ed22d2614ae9206febf956f0b22c81a5 (diff)
kbuild: create a rule to run the pre-processor on *.dts files
Create cmd_dtc_cpp to run the C pre-processor on *.dts file before passing them to dtc for final compilation. This allows the use of #define and #include within the .dts file. Acked-by: Simon Glass <sjg@chromium.org> Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Acked-by: Michal Marek <mmarek@suse.cz> Acked-by: Srinivas Kandagatla <srinivas.kandagatla@st.com> Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Diffstat (limited to 'scripts/Makefile.lib')
-rw-r--r--scripts/Makefile.lib10
1 files changed, 10 insertions, 0 deletions
diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
index bdf42fdf64c9..7910229ec665 100644
--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
@@ -269,6 +269,16 @@ cmd_dtc = $(objtree)/scripts/dtc/dtc -O dtb -o $@ -b 0 $(DTC_FLAGS) -d $(depfile
$(obj)/%.dtb: $(src)/%.dts FORCE
$(call if_changed_dep,dtc)
+dtc-tmp = $(subst $(comma),_,$(dot-target).dts)
+
+quiet_cmd_dtc_cpp = DTC+CPP $@
+cmd_dtc_cpp = $(CPP) $(cpp_flags) -x assembler-with-cpp -undef -D__DTS__ \
+ -o $(dtc-tmp) $< ; \
+ $(objtree)/scripts/dtc/dtc -O dtb -o $@ -b 0 $(DTC_FLAGS) $(dtc-tmp)
+
+$(obj)/%.dtb: $(src)/%.dtsp FORCE
+ $(call if_changed_dep,dtc_cpp)
+
# Bzip2
# ---------------------------------------------------------------------------