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ce27c4e61f
Baikal-T1 SoC is equipped with DWC PCIe v4.60a Root Port controller, which link can be trained to work on up to Gen.3 speed over up to x4 lanes. The controller is supposed to be fed up with four clock sources: DBI peripheral clock, AXI application Tx/Rx clocks and external PHY/core reference clock generating the 100MHz signal. In addition to that the platform provide a way to reset each part of the controller: sticky/non-sticky bits, host controller core, PIPE interface, PCS/PHY and Hot/Power reset signal. The Root Port controller is equipped with multiple IRQ lines like MSI, system AER, PME, HP, Bandwidth change, Link equalization request and eDMA ones. The registers space is accessed over the DBI interface. There can be no more than four inbound or outbound iATU windows configured. Link: https://lore.kernel.org/r/20221113191301.5526-15-Sergey.Semin@baikalelectronics.ru Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru> Signed-off-by: Lorenzo Pieralisi <lpieralisi@kernel.org> Reviewed-by: Rob Herring <robh@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 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.