Patch to make BBB properly boot from eMMC every time

[Sulev-Madis Silber (ketas)]

On 2014-05-13 23:33, Winston Smith wrote:
> On Tue, May 13, 2014 at 3:55 PM, Sulev-Madis Silber (ketas)
> <madis555 at hot.ee> wrote:
>> That's bit different issue.
> 
> I can't help but think the hang here is related, particularly to the
> subtle timing issues that are plaguing the 4 vs 8 bit detection.
> Seems like there's just something not right in the eMMC
> detection/startup?  Maybe the [faster] 1GHZ CPU is further throwing
> off the timing.
> 
>> I would actually want to have 1GHz WITH eMMC... now it's impossible.
>> First that, then maybe variable freq later (if possible). I certainly
>> have usage for such speeds somewhere.
> 
> Why is it impossible?  It seems to work, just not reliably!
> 

So you have uboot that could run BBB 1GHz while booting from eMMC?
Indeed, 2014.04 has appeared in crochet... while it should appear in
ports as *-devel, meh. I haven't tried that yet.


> Seems silly to have the 1GHZ BBB running at only 550Mhz.
> 
>> But right now BBB is so stable. I would put snapshot of CURRENT to
>> production right now. I now also have taken all debugging options out. I
>> didn't realize how SLOW things are with WITNESS & others on.
>> Maybe when I get more than one copy of same HW, I could run some of them
>> with WITNESS on too (would it actually give me some useful data I could
>> report back?)
> 
> I'm in the same boat.  However, Ian is in the process of backporting
> the CURRENT arm updates to STABLE.  If I can get 1GHZ working with
> 10-STABLE, then I'll be very happy.
> 
> WITNESS is an easy one, create a config like this:
> 
> ident   MYCONF
> 
> include BEAGLEBONE
> nooptions WITNESS
> 
> 
> And build with it (set KERNCONF if you're using crotchet-freebsd) and
> you'll get a WITNESS-free kernel.
> 

No, I'm not using crochet...

http://ketas.si.pri.ee/bbb/

There are most of things I use to customize tree for BBB.