Sim.One production quality checklist (sim1@googlegroups.com)

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marti...@gmail.com

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Sep 25, 2011, 10:07:52 PM9/25/11
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Mika Westerberg

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Sep 29, 2011, 1:16:28 AM9/29/11
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On Sep 26, 5:07 am, martinw...@gmail.com wrote:
> I've shared an item with you:
>
> Sim.One production quality checklisthttps://docs.google.com/document/d/1MciWZpKxSKHmGL8HZbu9MoeGLhvNL7LPX...

One comment -- SDHC cards work fine on Sim.One. I have two cards here
and both work.

It could be that some of the cards don't work because of limitations
in the MMC over SPI implementation (or because of the missing chip
select) but those can be solved case by case. MMC over SPI
implementation in Linux kernel is not so widely used and has room for
improvements. Also I wouldn't be surprised if some cards have omitted
support for the SPI protocol completely or have it only partially
implemented.

Martin Guy

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Sep 29, 2011, 3:42:41 PM9/29/11
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> One comment -- SDHC cards work fine on Sim.One. I have two cards here
> and both work.
>
> It could be that some of the cards don't work because of limitations
> in the MMC over SPI implementation (or because of the missing chip
> select) but those can be solved case by case.  MMC over SPI
> implementation in Linux kernel is not so widely used and has room for
> improvements. Also I wouldn't be surprised if some cards have omitted
> support for the SPI protocol completely or have it only partially
> implemented.

Thanks!
Which kernel version is that with? I'm testing with our release
kernel based on 2.6.36.
Yes, I know. Sorry, I've been occupied with the Mizar32 release for
months and haven't even got round to testing the new DMA code, let
alone updating out Debian kernel for sim.one.

Cheers & thanks for all the great ep93xx work

M

Mika Westerberg

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Sep 30, 2011, 12:44:41 AM9/30/11
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On Sep 29, 10:42 pm, Martin Guy <martinw...@gmail.com> wrote:
>   Which kernel version is that with? I'm testing with our release
> kernel based on 2.6.36.

With kernel 3.1-rcX.

I've used SDHC cards with earlier kernels and they work there too.
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