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621427fbda
RGMII mode can be enable from dp83822 straps, and also writing bit 9 of register 0x17 - RMII and Status Register (RCSR). When phy_interface_is_rgmii rgmii mode must be enabled, same for contrary, this prevents malconfigurations of hw straps References: - https://www.ti.com/lit/gpn/dp83822i p66 Signed-off-by: Tommaso Merciai <tommaso.merciai@amarulasolutions.com> Co-developed-by: Michael Trimarchi <michael@amarulasolutions.com> Suggested-by: Alberto Bianchi <alberto.bianchi@amarulasolutions.com> Tested-by: Tommaso Merciai <tommaso.merciai@amarulasolutions.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
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.