FreeBSD 12 r312227 dont boots on Beaglebone black

[Oleksandr Tymoshenko]

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.

-- 
gonzo