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OpenSBI Platform Support Guideline
==================================
The OpenSBI platform support is a set of platform specific hooks provided
in the form of a *struct sbi_platform* instance. It is required by:
1. *libplatsbi.a* - A platform specific OpenSBI static library, that is,
libsbi.a plus a *struct sbi_platform* instance installed at
*<install_directory>/platform/<platform_subdir>/lib/libplatsbi.a*
2. *firmwares* - Platform specific bootable firmware binaries installed at
*<install_directory>/platform/<platform_subdir>/bin*
A complete doxygen-style documentation of *struct sbi_platform* and related
APIs is available in sbi/sbi_platform.h.
Adding a new platform support
-----------------------------
The support of a new platform named *<xyz>* can be added as follows:
1. Create a directory named *<xyz>* under *platform/* directory
2. Create a platform configuration file named *config.mk* under
*platform/<xyz>/* directory. This configuration file will provide
compiler flags, select common drivers, and select firmware options
3. Create *platform/<xyz>/objects.mk* file for listing the platform
specific object files to be compiled
4. Create *platform/<xyz>/platform.c* file providing a *struct sbi_platform*
instance
A template platform support code is available under the *platform/template*.
Copying this directory as new directory named *<xyz>* under *platform/*
directory will create all the files mentioned above.
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