Actually, Bootlin has a Device Tree 101 Webinar scheduled for tomorrow. You might find this useful: https://www.eventbrite.fr/e/webinar-device-tree-101-registration-135964923747?utm_source=eventbrite&utm_medium=email&utm_campaign=event_reminder&utm_term=eventname
They have some free documentation on their site as well.: https://bootlin.com/ This is on the Beagleboard page: https://beagleboard.org/blog/2018-01-17-building-a-device-tree-overlay-for-your-new-pocketcape-design For the Beaglebone specific stuff, the Derek Molloy book is quite handy. The Second Edition is more relevant to the current kernel implementation. https://www.amazon.com/Exploring-BeagleBone-Techniques-Building-Embedded-dp-1119533163/dp/1119533163/ref=dp_ob_title_bk There is a ton of info out there, so others may have their own references. Cheers, Jon On Sun, Feb 7, 2021 at 11:28 AM Yendor <[email protected]> wrote: > Hi Robert, > Been completely new to all this what would be the best why to begin > writing a new *.dtb > > Regards, > > On Monday, February 8, 2021 at 1:39:02 AM UTC+10 RobertCNelson wrote: > >> On Sat, Feb 6, 2021 at 7:22 PM Yendor <[email protected]> wrote: >> > >> > Thanks for the info Robert, would you know how I could reclaim / >> rewrite these pins to act as SPI pins? >> > >> > What would be the best way of doing this? modify >> 'am335x-bonegreen-wireless-uboot-univ.dts' or can we get the boards to load >> a custom default dt config? >> >> Honestly, since you have a custom board, i'd just start carving a new >> *.dtb and stop using overlays for other boards.. >> >> Regards, >> >> -- >> Robert Nelson >> https://rcn-ee.com/ >> > -- > 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/56b31b3d-418a-442a-a750-3bc14832c1c0n%40googlegroups.com > <https://groups.google.com/d/msgid/beagleboard/56b31b3d-418a-442a-a750-3bc14832c1c0n%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- 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/CAG99bkqG2N2Q5-m-Tv-e82HA4kE8tRscJ1WbcxL4Bc3oZCxFTg%40mail.gmail.com.
