tree 849a1c503ffc3201323d45a087cc2c4f17fdcb30
parent 67598c0688c6e898a84be0f3b683e857effb8a3e
author Yann Gautier <yann.gautier@st.com> 1529330423 +0200
committer Yann Gautier <yann.gautier@st.com> 1529330716 +0200

Build: add cpp build processing for dtb

This is an add-on feature that allows processing
device tree with external includes.

"-Iinclude" is also added to INCLUDES.
It allows inclusion of dt-bindings files either in dts files or drivers,
as those files will be in include/dt-bindings/.

"-i fdts" is added to the DTC command line.
As the pre-processed files are in build directory, the DT source directory
has to be explicitely included, to manages /include/ directives.

fixes arm-software/tf-issues#595

Signed-off-by: Lionel Debieve <lionel.debieve@st.com>
Signed-off-by: Yann Gautier <yann.gautier@st.com>