From mboxrd@z Thu Jan  1 00:00:00 1970
From: Tony Lindgren <tony@atomide.com>
Subject: Re: Regression for non-eMMC cards with commit fa550189?
Date: Tue, 29 May 2012 05:47:32 -0700
Message-ID: <20120529124732.GD12766@atomide.com>
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To: Felipe Balbi <balbi@ti.com>
Cc: Ulf Hansson <ulf.hansson@linaro.org>, Chris Ball <cjb@laptop.org>, linux-mmc@vger.kernel.org, linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org

* Felipe Balbi <balbi@ti.com> [120529 00:46]:
> 
> Can you enable debugging on menelaus so we see what the driver is doing ?
> 
> I believe that to change the VMMC's supply voltage you need to turn off
> the regulator, meaning LDO_CTRL7[1:0] = 0b00.

Looks like it's some kind of race between the slots that now gets triggered
in the omap driver.

Commenting out the second slot in the board file fixes things. I tried adding
a mutex to protect the sequence between POWER_UP and POWER_ON, but no luck yet.

Also adding printk statements here and there makes it work again.

Regards,

Tony