From mboxrd@z Thu Jan  1 00:00:00 1970
From: Daniel Drake <dsd@laptop.org>
Subject: Re: [PATCH] mmc: sdio: reset card during power_restore
Date: Thu, 9 Jun 2011 16:51:33 +0100
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To: Ohad Ben-Cohen <ohad@wizery.com>
Cc: linux-mmc@vger.kernel.org

On 8 June 2011 21:05, Ohad Ben-Cohen <ohad@wizery.com> wrote:
> Please reboot, and immediately after booting (without insmoding the
> driver) tell me what's the output of :
>
> mount -t debugfs none /sys/kernel/debug
> cat /sys/kernel/debug/mmc1/ios
>
> Then insmod the driver, and tell me again what's the output of
> /sys/.../mmc1/ios.

bash-4.1# mount -t debugfs none /sys/kernel/debug
bash-4.1# cat /sys/kernel/debug/mmc1/ios
clock:		0 Hz
vdd:		0 (invalid)
bus mode:	1 (open drain)
chip select:	0 (don't care)
power mode:	0 (off)
bus width:	0 (1 bits)
timing spec:	0 (legacy)
bash-4.1# insmod /media/4E11-1D7C/libertas_sdio.ko
[   67.917748] libertas_sdio: Libertas SDIO driver
[   67.922976] libertas_sdio: Copyright Pierre Ossman
[   67.972073] libertas_sdio: probe of mmc1:0001:1 failed with error -16
bash-4.1# cat /sys/kernel/debug/mmc1/ios
clock:		400000 Hz
vdd:		21 (3.3 ~ 3.4 V)
bus mode:	1 (open drain)
chip select:	0 (don't care)
power mode:	2 (on)
bus width:	0 (1 bits)
timing spec:	0 (legacy)

> Please send a contiguous terminal session of these steps (incl. the
> boot messages), thanks !

Full log: http://dev.laptop.org/~dsd/20110609/sd-pwr-debug1.txt

Thanks
Daniel