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98048143b7
The Cubieboard4 has a Realtek RTL8211E ethernet PHY which uses RGMII to talk to the MAC. The PHY is powered by 2 regulators: cldo1 for the PHY's core logic and gpio1-ldo for I/O. The latter also powers the SoC side pins. As there is no binding to model a second regulator supply for the PHY, it is omitted. It is however properly modeled for the PIO. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.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.