6985157ce8
Gerhard Engleder says: ==================== Add Xilinx GMII2RGMII loopback support The Xilinx GMII2RGMII driver overrides PHY driver functions in order to configure the device according to the link speed of the PHY attached to it. This is implemented for a normal link but not for loopback. Andrew told me to use phy_loopback and this changes make phy_loopback work in combination with Xilinx GMII2RGMII. ==================== 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.