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Date:      Tue, 5 Jun 2007 17:12:32 +0200 (CEST)
From:      =?iso-8859-1?Q?Bj=F6rn_K=F6nig?= <bkoenig@cs.tu-berlin.de>
To:        arm@freebsd.org
Subject:   timeout while detecting SD card
Message-ID:  <53067.2001:6f8:101e:0:20e:cff:fe6d:6adb.1181056352.squirrel@webmail.alpha-tierchen.de>

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Hello,

yet another problem. I can't access the SD card. I googled a bit and
noticed that I'm not the only one with this problem, but I haven't found a
solution yet. Here are some details:

Everything seems to work fine until sending the app command in
mmc_wait_for_app_cmd. The driver gets an interrupt with a "response
time-out error" set in status register. That's it.

I tried to find the problem and executed an Atmel MCI demo programm in
kernel shortly after mmc_scan. It does basically the same and detects the
card in the SD card bay properly. There is one obvious difference: the
demo doesn't use an interrupt service routine.

I hope someone has a hint for me, once again. ;-)

Regards
Björn





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