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Date:      Tue, 13 May 2014 15:53:37 -0700
From:      Adrian Chadd <adrian@freebsd.org>
To:        Winston Smith <smith.winston.101@gmail.com>
Cc:        freebsd-arm <freebsd-arm@freebsd.org>, Ian Lepore <ian@freebsd.org>
Subject:   Re: Patch to make BBB properly boot from eMMC every time
Message-ID:  <CAJ-VmokJxBTrZORm1PwbPzmf5rFD25s2O4Dzo3NR2hvk2WSTCQ@mail.gmail.com>
In-Reply-To: <CADH-AwE56LmekRdKfbZYAbvrjaH9pFy0RY5L%2BY_ne0YfwDtOcA@mail.gmail.com>
References:  <5371E1F3.6080002@hot.ee> <1399987808.56626.2.camel@revolution.hippie.lan> <CADH-AwGftVJCi9NrAfQs6CYNifM04DZu9rtVF4k6Cd6irFk7fg@mail.gmail.com> <1399991632.56626.7.camel@revolution.hippie.lan> <CADH-AwHs2bNXyh-ADuMy8NgkdaakKi4hx1qz8bjB4heicFJy3w@mail.gmail.com> <5372789E.8020103@hot.ee> <CADH-AwE56LmekRdKfbZYAbvrjaH9pFy0RY5L%2BY_ne0YfwDtOcA@mail.gmail.com>

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Hi,

Please don't be afraid to keep running -HEAD on the BBB. A lot of this
stuff still needs to shake out there. :-)




-a


On 13 May 2014 13:33, Winston Smith <smith.winston.101@gmail.com> wrote:
> On Tue, May 13, 2014 at 3:55 PM, Sulev-Madis Silber (ketas)
> <madis555@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!
>
> 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.
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