FreeBSD 12 r312227 dont boots on Beaglebone black

[Warner Losh]

On Thu, Jan 26, 2017 at 6:31 PM, Oleksandr Tymoshenko
<gonzo at bluezbox.com> wrote:
> Otacílio (otacilio.neto at bsd.com.br) wrote:
>> Em 25/01/2017 19:13, Oleksandr Tymoshenko escreveu:
>> > Otacílio (otacilio.neto at bsd.com.br) wrote:
>> >> Dears
>> >>
>> >> I'm trying boot a FreeBSD12-armv6-r312227
>> >> (u-boot-beaglebone-2017.01.00.1) on a beaglebone black. The snapshot
>> >> FreeBSD-12.0-CURRENT-arm-armv6-BEAGLEBONE-20170105-r311461.img that I
>> >> downloaded from
>> >> ftp://ftp.freebsd.org/pub/FreeBSD/snapshots/arm/armv6/ISO-IMAGES/12.0/
>> >> works fine, but when I try boot the image that I build on my machine
>> >> using crouchet I get:
>> >>
>> >> U-Boot SPL 2017.01-rc3 (Jan 22 2017 - 23:17:18)
>> >> Trying to boot from MMC1MMC partition switch failed
>> >> *** Warning - MMC partition switch failed, using default environment
>> >>
>> >> reading u-boot.img
>> >> reading u-boot.img
>> >>
>> >> And boot stops. Someone can confirm that the revision 312227 is working
>> >> fine?
>> > I did some digging at the breakage is caused by this commit in U-Boot:
>> > https://www.mail-archive.com/u-boot@lists.denx.de/msg234317.html
>> >
>> > Crochet is using FAT12 for Beaglebone Black. Switching to FAT16 fixes
>> > the problem. Try applying this patch to crochet and re-build image:
>> >
>> > https://people.freebsd.org/~gonzo/patches/crochet-bbb-fat16.diff
>> >
>> I have applied the patch and now I'm getting this error. Some hints?
>
> FreeBSD uses dtb names that do not match upstream ones. After updating
> to 2017.01 that change was lost in progress. Possible workaround (HACK
> ALERT!!!) would be to do something like this:
>
> => setenv findfdt 'setenv fdtfile beaglebone-black.dtb'
> => saveenv
>
> Copy-paste to U-Boot serial console does not work for me on BBB, so
> you'll have have to enter these commands
>
> I will submit update to u-boot ports so all these workarounds will
> not be required.

I half-way expected we'd have issues here. My notion was that we'd
continue to use the upstream names and migrate our tools to create the
proper links / copies as a transition. We'll have to migrate someday
and might as well get started...

Warner