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From: Hans-Peter Nilsson <>
Subject: Re: 5 patches: updates to SPI and mmc_spi, kernel 2.6.19
Date: Fri, 26 Jan 2007 15:31:49 +0100	[thread overview]
Message-ID: <> (raw)
In-Reply-To: <> (message from David Brownell on Thu, 25 Jan 2007 04:59:37 -0800)

> From: David Brownell <>
> Date: Thu, 25 Jan 2007 04:59:37 -0800

> So to summarize ... you now have MMC-over-SPI working on CRIS
> hardware, with these patches?

Yes.  FWIW, we'll ship with our ETRAX FS developer boards, soon
enough (in a week or so, knock-on-wood).

>   Can you yet run filesystem
> stress tests with ext3 on such an MMC card,

I'd have to configure it in, but I guess I could, if you're not
happy with just vfat.  I just copied (tarred both to file, and
separately copied the tree through tar) 174 MeB from a USB stick
to separately a 512 MeB SDcard and a 2 GiB MMC card and they
both read out correctly from an (USB) SDcard reader connected to
my PC.  Is there a specific test you have in mind?

(I finally hashed out the "DMA" problems I've had.  I mistakenly
thought that a wait_for_completion_timeout return of 0 meant
that the completion didn't happen, grr!  Buggy or just confusing
API?  Kind-of the same problem as with your scanbyte timeout!
Looks like this kind of bug is elsewhere in the kernel too.)

> or is this more at
> the level of everything working with light/early test loads,
> so it's time to see if other folk can reproduce your results?

What's the difference? :-)  (Don't forget, it's considered ok to
include experimental drivers on developer boards.)

brgds, H-P

  reply	other threads:[~2007-01-26 14:32 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-01-25  4:47 Hans-Peter Nilsson
2007-01-25 12:59 ` David Brownell
2007-01-26 14:31   ` Hans-Peter Nilsson [this message]
2007-01-26 23:23     ` David Brownell

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