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b6ef9b9ece
Now that the PRU code is upstream and can be loaded via remoteproc, adjust the device tree to enable it and adjust the pin muxing so that the default setting of the pins matches what's is given on the silkscreen and/or pocketbeagle wiring. Caveat: In most cases, the silkscreen will indicate, for example, "PRU0.7", but it doesn't indicate whether that pin should be enabled for input or output. On the PRU a different MODE is used for input versus output. So it is unclear which mode to enable (MODE5 = output, MODE6 = input). In cases where there is a choice (PRU1.11, PRU0.7, PRU0.4, PRU0.1, PRU1.10, PRU0.6, PRU0.3, PRU0.2, and PRU0.5) output is assumed (MODE5). The remaining PRU silkscreen pins do not have a choice and are set as follows: PRU0.16 MODE5 input PRU0.15i MODE6 input Signed-off-by: Trevor Woerner <twoerner@gmail.com> Message-ID: <20230822143051.7640-4-twoerner@gmail.com> [tony@atomide.com: formatted description to fit 75 characters] Signed-off-by: Tony Lindgren <tony@atomide.com> |
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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.