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There are different switches available on both the RZ/G3S SMARC Module and RZ SMARC Carrier II boards. These switches are used to route different SoC signals to different parts available on board. These switches are described in device trees through macros. These macros are set accordingly such that the resulted compiled dtb to describe the on-board switches states. The SCIF1 depends on the state of the SW_CONFIG3 and SW_OPT_MUX4 switches. SCIF1 can be enabled through a device tree overlay. To manage all switches in a unified state and allow users to configure the output device tree, add a file that contains all switch definitions and states. Commit prepares the code to enable SCIF1 on the RZ/G3S overlay. Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/20250120130936.1080069-3-claudiu.beznea.uj@bp.renesas.com Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
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 reStructuredText 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.