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5037d4ddda
The APU3+ boards have two SIM sockets, while only one of them can be routed to the mpcie slots at a time. Selection is done via simswap gpio. We currently don't have a fitting subsystem for those cases yet, so just wire it up to a LED for the time being. While this isn't really semantically correct, it's a good compromise. Signed-off-by: Enrico Weigelt <info@metux.net> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.