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BaseTools/Conf: disable DTC legacy phandle format

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By default, the device tree compiler emits phandle properties twice:
once called 'phandle' and again called 'linux,phandle'. Given that
Linux was updated in early 2010 [0] to accept the former (which is
what is specified in the ePAPR and device tree specifications), there
is no point in emitting both when compiling device trees for UEFI
platforms.

[0] 04b954a673dd02f585a2769c4945a43880faa989
"of/flattree: Make the kernel accept ePAPR style phandle information"

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
(cherry picked from commit 34a4ddda4d)
This commit is contained in:
Ard Biesheuvel
2018-01-05 09:24:22 +00:00
committed by Yonghong Zhu
parent 166be39c8d
commit b73df32873
2 changed files with 2 additions and 1 deletions
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BaseTools/Conf/build_rule.template
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@@ -250,7 +250,7 @@
<Command.GCC>
"$(PP)" $(DTCPP_FLAGS) $(INC) ${src} > ${d_path}(+)${s_base}.i
"$(DTC)" -I dts -O dtb -o ${dst} ${d_path}(+)${s_base}.i
"$(DTC)" $(DTC_FLAGS) -I dts -O dtb -o ${dst} ${d_path}(+)${s_base}.i
[Visual-Form-Representation-File]
<InputFile>