From mboxrd@z Thu Jan 1 00:00:00 1970 From: lukasz.goralczyk@gmail.com (=?UTF-8?Q?=C5=81ukasz_G=C3=B3ralczyk?=) Date: Sun, 30 May 2010 22:37:59 +0200 Subject: Problem with at91_mci and AT91RM9200 In-Reply-To: 1274966669.2465.105.camel@arcturus References: 1274966669.2465.105.camel@arcturus Message-ID: <1275251879.2380.2.camel@arcturus> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org 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.