[Macchiato] SD problems

[Marcin Wojtas]

2017-06-14 20:19 GMT+02:00 Ard Biesheuvel <ard.biesheuvel at linaro.org>:

> On 14 June 2017 at 20:09, Marcin Wojtas <mw at semihalf.com> wrote:
> > Hi Steve,
> >
> > I tried two different SD cards, both worked, so maybe I was lucky.
> Anyway,
> > are you sure, you have MBR partition table + the first (boot) partition
> > starts at 4096?
> >
>
> I can confirm it is a board level issue: I had the pleasure of playing
> with Steve's board as well as my own, and as he reported, one of my
> working SDs also worked on his board. My experience is not as bad, but
> out of my sizable collection, only two uSD cards are accepted by the
> bootrom.
>
>
Who knows, maybe it's somehow related to unstable SD card operation in
UEFI? 7040/8040-DB do not have such problems with this interface (and same
cards).

Anyway, please boot via UART, following this instruction:
https://wiki.solid-run.com/doku.php?id=products:a8040:software:development:u-boot_atf
We found it today, and it really eases the whole process. I'll take it to
main McBin wiki.

Please let know if it worked for you.

Best regards,
Marcin



>
> > 2017-06-14 18:49 GMT+02:00 Steve McIntyre <steve at einval.com>:
> >>
> >> Hey guys,
> >>
> >> I'm sstill stumped here with getting my Macchiato to boot off SD. I've
> >> tried lots of different cards and can't find anything that will
> >> work. The *only* card that I've seen work is the unlabelled/unknown
> >> card that Ard brought with him to Cambridge last month. Nothing else
> >> even comes close to booting on my board, which makes it really
> >> difficult to get much further with doing anything on my machine.
> >>
> >> If it wasn't for this *one* SD card working fine first time, I'd be
> >> tempted to say my machine had a hardware fault. I've tried multiple
> >> Sandisk cards from 1GB up to 64GB, Samsung 32G, Toshiba 32G, Kingston
> >> 8G and up, Intenso 4G. I'm waiting on another Kingston 4G card to land
> >> tomorrow, to try that too. It's very frustrating. :-(
> >>
> >> I'm assuming failure logs are not interesting. I can supply them if
> >> desired - just ask.
> >
> >
> > Yes, please show the logs.
> >
> > Best regards,
> > Marcin
> >
> >>
> >>
> >> In the meantime, I can see that there's a fallback option to boot via
> >> UART. Is there any documentation about what's needed to use that
> >> anywhere?
> >>
> >> --
> >> Steve McIntyre, Cambridge, UK.
> >> steve at einval.com
> >>   Armed with "Valor": "Centurion" represents quality of Discipline,
> >>   Honor, Integrity and Loyalty. Now you don't have to be a Caesar to
> >>   concord the digital world while feeling safe and proud.
> >>
> >>
> >> _______________________________________________
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> >> https://lists.einval.com/cgi-bin/mailman/listinfo/macchiato
> >
> >
> >
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