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a9ec9fb738The hardware has been updated with two changes to the MDIO packet format. The CMD field used to be 12 bits and now is only 1 bit. This change is backwards compatible because the field's starting bit position is unchanged, and the only commands we've used have values 0 and 1. The PORT field's width has been changed from 4 bits to 5 bits. When written, the new bit is not contiguous with the other four. However, this change is backwards compatible because the driver never used anything other than 0 for the port field's value. Thus, update the existing code to handle new changes to the hardware in a backwards-compatible manner. Signed-off-by: Jim Quinlan <james.quinlan@broadcom.com> Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com> Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Link: https://lore.kernel.org/r/20250214173944.47506-8-james.quinlan@broadcom.com [kwilczynski: commit log] Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org> |
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| README | ||
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.