DTB for BBB?

[Vijay Kumar Banerjee]

On Wed, Jul 7, 2021 at 1:27 PM Shiro <rt9f.3141 at gmail.com> wrote:
>
>
> >
> >> Question regarding the correct DTS for BBB:  in section 8.2.3.2 of the online docs:
> >> https://docs.rtems.org/branches/master/user/bsps/bsps-arm.html?highlight=dts#beagle
> >>
> >> I don't follow this:
> >>
> >> We build the dtb from the FreeBSD source matching the commit hash from the libbsd HEAD of freebsd-org.  For example if the HEAD is at “19a6ceb89dbacf74697d493e48c388767126d418” …
> >>
> > The HEAD is determined by the HEAD of the freebsd-org submodule in the
> > rtems-libbsd repository, which is basically the FreeBSD source. Though
> > the documentation says that we should always take commit hash matching
> > with the submodule HEAD, the commit id that you found in the
> > documentation (i.e 19a6ceb) is the last one that has been thoroughly
> > tested. You might want to use that id and build the dtb.
> >
> > To build the DTB, you can use the script provided by FreeBSD in the
> > following source directory:
> > sys/tools/fdt/make_dtb.sh
> >
> > And the right dts to build is sys/gnu/dts/arm/am335x-boneblack.dts
>
No problem! Glad it helped.
Maybe we need to make it clear in the documentation as well. :)
>
> Thank you for the detailed explanation.  Now I get it!