On Thu, Mar 9, 2017 at 1:49 PM, Justyn Bell <[email protected]> wrote:
> In the am335x-boneblack-wireless.dts there is a comment:
>
>  17 /* pruss: pick one: */
>  18
>  19 /*
>  20  * /etc/modprobe.d/pruss-blacklist.conf
>  21  *
>  22  * blacklist uio_pruss
>  23  */
>  24
>  25 /* #include "am33xx-pruss-rproc.dtsi" */
>  26
>  27 /*
>  28  * /etc/modprobe.d/pruss-blacklist.conf
>  29  *
>  30  * blacklist pruss
>  31  * blacklist pruss_intc
>  32  * blacklist pru-rproc
>  33  */
>
>
> I uncommented line 25, and added uio_pruss to the modules blacklist, and
> everything works as expected.  It's loading the two .out files symlinked in
> /lib/firmware.  The modules fail to load when I added them in /etc/modules,
> but will load once the system is booted and I `modprobe -r pru_rproc &&
> modprobe pru_rproc` them.  So I added those commands to /etc/rc.local.  It's
> probably not the preferred way to load modules, but it works here.
>
> On a personal note, I spent far too much time sifting through tons of
> obsolete instructions on loading the PRUs with firmware all over the
> internet.  If you ask the Sitara experts on the TI forums, they won't
> support you (much) unless you're using their SDK, and if it weren't for the
> instructions on the TI site, this would be an almost impossible endeavour.
> Why aren't modern instructions provided on the BB site?  Modern here meaning
> using the tools already loaded on the BBB(W) in /opt/sources, and CCS to
> write and compile C.

Because there are two competing pru implementations..

Those that used 3.8.13 and want a newer kernel

and those that want the new interface..

btw if you run:

cd /opt/scripts/tools/
git pull
sudo ./update_kernel.sh --ti-channel --lts-4_4

you'll get 4.4.52-ti-r91 which has ti's remoteproc_pruss enabled by
default again.*

Regards,

-- 
Robert Nelson
https://rcn-ee.com/

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