Here is a possible example overlay that configures pinmuxes with the expectation that the pru's will use them. There is likely a similar example in that long list of overlays that disables hdmi.
https://github.com/beagleboard/bb.org-overlays/blob/master/src/arm/AM335X-PRU-RPROC-4-19-TI-PRUCAPE-00A0.dts Note its entirely possible these examples won't build or apply correctly on a different kernel version, but they should still be a decent starting point. On Thu, Dec 21, 2023 at 6:34 AM Lukasz Przenioslo <breme...@gmail.com> wrote: > Hello there, > > I was able to compile the Poky image (Dunfell) with meta-ti included for > the BBB. I am working on an open source project intended for home > automation based on the BBB: https://github.com/Beaglenode/BeagleNodeHW > > The next step I am trying to make is to prepare a proper device tree > overlay that would align with the HW requirements of this project (or > "cape"). I need to: > - Disable the HDMI pins, > - configure multiple pins as either PRU0 or PRU1 controlled. > > For that I thought the best approach would be to prepare a DTO, instead of > modifying the default one for BBB. I don't know how to prepare that DTO yet > and I don't know how to include it in my build. I would like to ask for > some help in this manner, especially the prior part (how to load the custom > DTO). Right now I am still modifying everything in the local.conf, as I do > not have the knowledge yet to build my own distro for this device (that's > the end plan). > > I would appreciate all help! > > > > -- Jonathan Cormier Software Engineer Voice: 315.425.4045 x222 http://www.CriticalLink.com <http://www.criticallink.com/> 6712 Brooklawn Parkway, Syracuse, NY 13211 <https://www.linkedin.com/company/critical-link-llc> <https://twitter.com/Critical_Link>
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