From: Will Newton <will.newton@gmail.com>
To: "Wolfgang Mües" <wolfgang.mues@auerswald.de>
Cc: Pierre Ossman <drzeus@drzeus.cx>,
Andrew Morton <akpm@linux-foundation.org>,
Matt Fleming <matt@console-pimps.org>,
David Brownell <dbrownell@users.sourceforge.net>,
Mike Frysinger <vapier.adi@gmail.com>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 7/7] mmc_spi: support for non-byte-aligned cards
Date: Wed, 11 Mar 2009 15:03:30 +0000 [thread overview]
Message-ID: <87a5b0800903110803k5e8a8ee4m50c572d845a38cb0@mail.gmail.com> (raw)
In-Reply-To: <200903111600.05835.wolfgang.mues@auerswald.de>
On Wed, Mar 11, 2009 at 3:00 PM, Wolfgang Mües
<wolfgang.mues@auerswald.de> wrote:
> Will,
>
> Am Mittwoch, 11. März 2009 schrieb Will Newton:
>> Are they using the same host controller? Have you tried these cards
>> with a different host controller?
>
> I have tried with 3 different spi host controllers.
>
>> Are you clocking them particularly slow or fast?
>
> 400 KHz, 20 MHz and 25 MHz.
>
>> A logic probe may not display any signal integrity issues you might have.
>
> My "logic probe" is a 1 GHz leCroy DSO.
>
> I am doing this for money, and I am no amateur.
Ok, sure, but these are things that are best put in your changleogs so
people can understand what hardware is problematic and how it is
proven.
I have not seen these problems or seen them reported by others.
Hopefully they will speak up and confirm your results.
next prev parent reply other threads:[~2009-03-11 15:03 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-03-11 13:40 Wolfgang Mües
2009-03-11 13:56 ` Will Newton
2009-03-11 14:34 ` Wolfgang Mües
2009-03-11 14:38 ` Will Newton
2009-03-11 15:00 ` Wolfgang Mües
2009-03-11 15:03 ` Will Newton [this message]
2009-03-11 15:14 ` Wolfgang Mües
2009-03-11 15:21 ` Will Newton
2009-03-11 23:42 ` Robin Getz
2009-03-11 21:03 ` David Brownell
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