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From: "Eric Bénard" <eric@eukrea.com>
To: Wolfram Sang <w.sang@pengutronix.de>
Cc: joancarles <joancarles@fqingenieria.es>,
	Zhu Richard-R65037 <r65037@freescale.com>,
	shawn.guo@linaro.org, linux-mmc@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org
Subject: Re: [MX25][MMC] mmc esdhc failure in 3.3
Date: Tue, 27 Mar 2012 11:23:42 +0200	[thread overview]
Message-ID: <20120327112342.73a85a1b@eb-e6520> (raw)
In-Reply-To: <20120327091425.GC6790@pengutronix.de>

Le Tue, 27 Mar 2012 11:14:25 +0200,
Wolfram Sang <w.sang@pengutronix.de> a écrit :

> 
> > > Interesting question is now why it worked on your older kernel? The code
> > > around BROKEN_TIMEOUT is there for much longer, I'd think.
> > > 
> > not in fact it seems to have been broken from a long time and I think
> 
> I know and you are saying the same, in fact :) Your patch came in around
> 2.6.37 and here it was said that 2.6.39 works fine. Might be random,
> though.
> 
what is surprising is that no one reported this problem between 2.6.37
and 3.3

> > because unlike the i.MX35 it seems that the i.MX25 manages to read
> > properly the partition table even without the timeout quirk and it
> > seems that I didn't do more extensive tests for this patch.
> 
> Please do next time.
> 
well I should have said "enough extensive" tests as I did a lot of tests
on the 3 archs (i.MX25, i.MX35 and i.MX51). What I see here is that on
i.MX35 and i.MX51 the problem is very easy to reproduce without
extensive tests (card not detected) and that on i.MX25 it needs more
tests as the card is properly detected.

Eric

  reply	other threads:[~2012-03-27  9:23 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-03-06 11:29 [MX25][MMC] mmc esdhc failure in 3.3-rc5 joancarles
2012-03-12 13:12 ` [MX25][MMC] mmc esdhc failure in 3.3-rc5 (still present in rc7) joancarles
2012-03-12 13:24 ` [MX25][MMC] mmc esdhc failure in 3.3-rc5 Wolfram Sang
2012-03-12 14:50   ` joancarles
2012-03-12 21:45     ` Wolfram Sang
2012-03-13 11:20       ` joancarles
2012-03-13  5:55     ` Zhu Richard-R65037
2012-03-16 15:03       ` joancarles
2012-03-27  7:32         ` [MX25][MMC] mmc esdhc failure in 3.3 joancarles
2012-03-27  7:59           ` joancarles
2012-03-27  8:12           ` Eric Bénard
2012-03-27  8:46             ` joancarles
2012-03-27  8:58               ` Eric Bénard
2012-03-27 13:03                 ` Zhu Richard-R65037
2012-03-27  9:01               ` Wolfram Sang
2012-03-27  9:06                 ` Eric Bénard
2012-03-27  9:14                   ` Wolfram Sang
2012-03-27  9:23                     ` Eric Bénard [this message]
2012-03-27  9:36                       ` Wolfram Sang
2012-03-27  9:33                   ` joancarles
2012-03-27  9:40                     ` Eric Bénard
2012-03-27 10:56                       ` joancarles
2012-03-28  9:26                         ` joancarles
2012-03-28 14:01                           ` joancarles
2012-03-27  9:45                     ` Wolfram Sang

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