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Date:      Sun, 27 Apr 2014 13:43:13 -0400
From:      Winston Smith <smith.winston.101@gmail.com>
To:        Ian Lepore <ian@freebsd.org>
Cc:        FreeBSD ARM <freebsd-arm@freebsd.org>
Subject:   Re: FreeBSD-10-STABLE hangs when booting from BeagleBone Black eMMC
Message-ID:  <CADH-AwE%2B5=A4aiqbTYqor1Any1JGNhz4LHOJwfyykYU92UpirQ@mail.gmail.com>
In-Reply-To: <1398618984.61646.165.camel@revolution.hippie.lan>
References:  <CADH-AwHvaVqycykONkzRsj7oD3xSi8hszvc_Wf4obC=Y_qPiaQ@mail.gmail.com> <1398618984.61646.165.camel@revolution.hippie.lan>

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On Sun, Apr 27, 2014 at 1:16 PM, Ian Lepore <ian@freebsd.org> wrote:
> I only have a BBW, no BBB to play with, so I can't help too much with
> this.  I can say however that if you're having trouble with reading the
> eMMC in ubldr, the trouble is probably in u-boot.  U-boot is still in
> memory when ubldr is running, and it serves as a kind of mini-bios,
> providing access to console, disk, and network IO.
>
> I heard a rumor a while back that Patrick Kelsey had some patches for
> u-boot to fix problems with probing for disk devices.  It may be that
> they were only needed for older versions of u-boot, I'm not sure.

I do have Patrick's fixes for u-boot.  Interestingly, the same u-boot
(2013.4 + Patrick's patches) works with 11-CURRENT but not 10-STABLE
-- that's booting from eMMC, there are no issues booting from SD; also
once booted from SD, there is no issues mounting the eMMC and
accessing it (well ... aside from lock reversal warnings and the
occasional sdhc timeout).

Is there a way to debug this?

Thanks!



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