From mboxrd@z Thu Jan  1 00:00:00 1970
From: "stanley.miao" <stanley.miao@windriver.com>
Subject: Re: [PATCH 11/11] AM3517: Add mmc platform data for am3517evm
Date: Wed, 14 Apr 2010 15:14:17 +0800
Message-ID: <4BC56B49.8010106@windriver.com>
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To: Adrian Hunter <adrian.hunter@nokia.com>
Cc: "linux-omap@vger.kernel.org" <linux-omap@vger.kernel.org>, "tony@atomide.com" <tony@atomide.com>, "madhu.cr@ti.com" <madhu.cr@ti.com>

Adrian Hunter wrote:
> Stanley.Miao wrote:
>> Add mmc platform data. Besides, the mmc slot on UI board has a pin 
>> conflict
>> with LCD, so add macros to resolve it.
>>
>> <snip>
>>  
>> +static struct omap2_hsmmc_info mmc[] = {
>> +    {
>> +        .mmc            = 1,
>> +        .wires          = 4,
>> +        .gpio_cd        = 127,
>> +        .gpio_wp        = 126,
>> +        .ocr_mask       = MMC_VDD_165_195 |
>> +                MMC_VDD_26_27 | MMC_VDD_27_28 |
>> +                MMC_VDD_29_30 |
>> +                MMC_VDD_30_31 | MMC_VDD_31_32,
>
> How can you support 1.8V and 3V cards without controlling power
> to the card?

Just modify the MMCHS_HCTL register.
I don't have a 1.8V card, so I didn't test the 1.8V mode. I just wrote 
it according to TRM.

Stanley.