[Macchiato] MacchiatoBin GPU progress [#freetimeproject]

[Matt Spencer]

Hi Ard


So, I get about a 50% success rate on booting the board, taken from a sample of 12 boots, with 6 successful and 6 failed boots.  All conducted with the 16-1 riser with external power.


Seems to always fail in about the same place.  I have attached boot logs from one successful, one full failure and 5 tails of the failed boot, hopefully this will shed some light on whats happening?


I am using a pre-release uboot - I have one of the early hardware batches - could this be contributing to the problem?


/Matt

________________________________
From: Ard Biesheuvel <ard.biesheuvel at linaro.org>
Sent: 05 June 2017 13:19:31
To: Matt Spencer
Cc: Leif Lindholm; Wookey; Steve Capper; Steve McIntyre; macchiato at lists.einval.com
Subject: Re: MacchiatoBin GPU progress [#freetimeproject]

On 5 June 2017 at 12:17, Matt Spencer <Matt.Spencer at arm.com> wrote:
> My card does seem to be detected every boot - although I have not rebooted a
> large number of times with the card in yet (maybe 5 or so?).  I can power
> cycle it to see what the detection rates are like if that would help?
>

Yes, please. Could you try it with the riser power disconnected as well please?

>
> My 16->1 riser card is powered, as I didn't want to assume that the
> motherboard would be configured to power a GPU - they can be hungry beasts!
>

True.

>
> This is the riser that I am using:
> https://www.amazon.co.uk/gp/product/B01ER2Z1GY/ref=oh_aui_detailpage_o07_s00
>
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