Problem with at91_mci and AT91RM9200

[Łukasz Góralczyk]

On 2010-05-27 13:24, Łukasz Góralczyk 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.