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RK platforms support RGMII and/or RMII depending on the SoC. Detect whether support for a SoC exists by whether the interface specific set_to functions have been populated, and set the appropriate bits in phylink's bitmap of interfaces. This assumes all dwmac interfaces on a SoC have identical support, but it should be noted that this is not true for RK3528 which only supports RGMII on GMAC1. However, the existing code structure permits RGMII to be configured on GMAC0 without complaint, so preserve this behaviour even though it is incorrect to avoid functional change. Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Link: https://patch.msgid.link/E1uPk2j-004CF6-Mf@rmk-PC.armlinux.org.uk Signed-off-by: Jakub Kicinski <kuba@kernel.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.