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Renesas Gen3 platform includes a Cortex-r7 processor. Both: the application cores (A5x) and the realtime core (CR7) share access to the RAM and devices with the same address map, so device addresses are equal to the Linux physical addresses. In order to initialize this remote processor we need to: - power on the realtime core - put the firmware in a RAM area - set the boot address for this firmware (reset vector) - Deassert the reset This initial driver allows to start and stop the Cortex R7 processor. Signed-off-by: Julien Massot <julien.massot@iot.bzh> Link: https://lore.kernel.org/r/20211207165829.195537-3-julien.massot@iot.bzh Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.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.