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On the Radxa Cubie A5E board, the second Ethernet controller, aka the GMAC200, is connected to a second external Maxio MAE0621A PHY. The PHY uses an external 25MHz crystal, and has the SoC's PJ16 pin connected to its reset pin. Enable the second Ethernet port. Also fix up the label for the existing external PHY connected to the first Ethernet port. An enable delay for the PHY supply regulator is added to make sure the PHY's internal regulators are fully powered and the PHY is operational. Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Link: https://patch.msgid.link/20250923140247.2622602-5-wens@kernel.org Signed-off-by: Chen-Yu Tsai <wens@csie.org>
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.