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18a918762f
This patch adds c45 registers direct access support in Microchip's LAN865x internal PHY. OPEN Alliance 10BASE-T1x compliance MAC-PHYs will have both C22 and C45 registers space. If the PHY is discovered via C22 bus protocol it assumes it uses C22 protocol and always uses C22 registers indirect access to access C45 registers. This is because, we don't have a clean separation between C22/C45 register space and C22/C45 MDIO bus protocols. Resulting, PHY C45 registers direct access can't be used which can save multiple SPI bus access. To support this feature, set .read_mmd/.write_mmd in the PHY driver to call .read_c45/.write_c45 in the OPEN Alliance framework drivers/net/ethernet/oa_tc6.c Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Parthiban Veerasooran <Parthiban.Veerasooran@microchip.com> Link: https://patch.msgid.link/20240909082514.262942-8-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.