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Implement register write operation according to the control communication specified in the OPEN Alliance 10BASE-T1x MACPHY Serial Interface document. Control write commands are used by the SPI host to write registers within the MAC-PHY. Each control write commands are composed of a 32 bits control command header followed by register write data. The MAC-PHY ignores the final 32 bits of data from the SPI host at the end of the control write command. The write command and data is also echoed from the MAC-PHY back to the SPI host to enable the SPI host to identify which register write failed in the case of any bus errors. Control write commands can write either a single register or multiple consecutive registers. When multiple consecutive registers are written, the address is automatically post-incremented by the MAC-PHY. Writing to any unimplemented or undefined registers shall be ignored and yield no effect. Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Parthiban Veerasooran <Parthiban.Veerasooran@microchip.com> Link: https://patch.msgid.link/20240909082514.262942-3-Parthiban.Veerasooran@microchip.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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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.