On Wed, Mar 1, 2017 at 8:53 PM William Hermans <[email protected]> wrote:
> Jason, > > Is this a pure uEnv.txt edit only now ? Last I looked, you had to modify > the the board overlay file. Or maybe it was one of the includes, I forget > which. > There is also a kernel module blacklist configuration file. I'm not sure why that one needs to be touched. Again, I think we should just make remote-proc the default and be done with it. A good GSoC project would be to port am335x_pru_package to remote-proc. I'd still want to keep 'pasm' support as a requirement because it is fully open source, but 'clpru' support would be a nice bonus. I'll add the project idea to a http://bbb.io/gsocideas. > > On Wed, Mar 1, 2017 at 6:37 PM, Jason Kridner <[email protected]> wrote: > > > > On Mar 1, 2017, at 7:48 PM, William Hermans <[email protected]> wrote: > > I had the PRU's working with an 4.x kernel around 4-5 months ago. > Basically I downloaded Jason's PRU github files, and got two of the > examples working. Back then, you could only use the older UIO PRU source > examples with the *bone* kernel, as TI's kernel was remoteproc only. Now > days, supposedly it's possible to to use either with TI kernels by properly > commenting / uncommenting a given device tree overlay, and blacklisting the > driver modules you're not going to use. I say "supposedly" as I do not know > from first hand experience, because I've been too busy building a system > professionally( day job ). > > > To make things simpler, I'd like to see Robert adjust the default to have > remote-proc turned on and require UIO users alone to need to edit uEnv.txt. > > What would be great is if someone helped edit the examples in the > am335x_pru_package to use remote-proc. Shouldn't be hard if mmap() is still > used to do the live communications and remote-proc is mostly just replacing > the loader. > > > Robert has laid out the general procedure, and the given overlay files are > commented well, in order to achieve the end goal of using pruss_uio, or > remoteproc. However, knowing which file needs modification, and the rest > can be hard to figure out if you're unaware of these changes. > > > They are documented in /boot/uEnv.txt. > > Additionally, the less you know about Linux in general. The harder time > you're going to have setting up either UIO, or remoteproc. > > The only time I ever saw a seg fault happen with the PRU example code. Was > when I tried running the example code as a regular user. e.g. you need to > run the examples with elevated permissions. Which means you must be the > user root, or use sudo as a regular user. > > -- > For more options, visit http://beagleboard.org/discuss > --- > You received this message because you are subscribed to the Google Groups > "BeagleBoard" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/beagleboard/CALHSORqpBaqCFk3UAVmRxbcE-8j0DkUtiaams5B6wD_ejAANvw%40mail.gmail.com > <https://groups.google.com/d/msgid/beagleboard/CALHSORqpBaqCFk3UAVmRxbcE-8j0DkUtiaams5B6wD_ejAANvw%40mail.gmail.com?utm_medium=email&utm_source=footer> > . > For more options, visit https://groups.google.com/d/optout. > > -- > For more options, visit http://beagleboard.org/discuss > --- > You received this message because you are subscribed to the Google Groups > "BeagleBoard" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > > To view this discussion on the web visit > https://groups.google.com/d/msgid/beagleboard/28A1EDA6-E490-4FDB-BF9E-39C375CD4486%40gmail.com > <https://groups.google.com/d/msgid/beagleboard/28A1EDA6-E490-4FDB-BF9E-39C375CD4486%40gmail.com?utm_medium=email&utm_source=footer> > . > > > For more options, visit https://groups.google.com/d/optout. > > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/CA%2BT6QPn5_5OYkHTQhmoi1XFU4x6EJDtH9pD8Un4c7KskGOtbWA%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
