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The unimac mdio driver falls back to scanning the entire bus if its given an appropriate mask. In ACPI mode we expect that the system is well behaved and conforms to recent versions of the specification. We then utilize phy_find_first(), and phy_connect_direct() to find and attach to the discovered phy during net_device open. While its apparently possible to build a genet based device with multiple phys on a single mdio bus, this works for current machines. Further, this driver makes a number of assumptions about the platform device, mac, mdio and phy all being 1:1. Lastly, It also avoids having to create references across the ACPI namespace hierarchy. Signed-off-by: Jeremy Linton <jeremy.linton@arm.com> 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.