From: lukasz.goralczyk@gmail.com (Łukasz Góralczyk)
To: linux-arm-kernel@lists.infradead.org
Subject: Problem with at91_mci and AT91RM9200
Date: Sun, 30 May 2010 22:37:59 +0200 [thread overview]
Message-ID: <1275251879.2380.2.camel@arcturus> (raw)
In-Reply-To: 1274966669.2465.105.camel@arcturus
On 2010-05-27 13:24, ?ukasz G?ralczyk wrote:
[cut]
> I compiled newest kernel (2.6.33.4 and 2.6.32 with at91 patches
> http://www.at91.com/linux4sam/bin/view/Linux4SAM/LinuxKernel#AT91_Linux_kernel_sources_summar )
> which boots but fails to detect SD Card (Sandisk microSD 2 GB through SD
> adapter). A the end there's a debugging output (stripped, full:
> http://liku.ayz.pl/at91mmc ).
[cut]
Solution is to lower clock speed from 400k Hz to 150k Hz (350k and 300k
didn't work) in drivers/mmc/core/core.c around line 915.
Lukasz.
next reply other threads:[~2010-05-30 20:37 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-05-30 20:37 Łukasz Góralczyk [this message]
-- strict thread matches above, loose matches on Subject: below --
2010-05-27 13:24 Problem with at91_mci and AT91RM9200 Łukasz Góralczyk
2010-05-27 14:39 ` zql at glomationinc.com
2010-05-28 10:59 ` Łukasz Góralczyk
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