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LSIO subsystem contains 14 MU instances. 5 MUs to communicate between AP <-> SCU - side-A PD range managed by AP - side-B PD range managed by SCU 9 MUs to communicate between all cores (AP/M4/DSP). - side-A PD range managed by core-A (AP/M4/DSP) - side-B PD range managed by core-B (AP/M4/DSP). Communication between AP <-> DSP is done through the assigned MU number 13. So, we power up side-A by the AP and we decide to power up side-B also from AP. This is because powering it up from DSP would be painful. Powering up side B from DSP would require the DSP to communicate with SCU and to keep things simple we don't want that now. Signed-off-by: Daniel Baluta <daniel.baluta@nxp.com> Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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.