RE: [PATCH] mmc: eMMC signal voltage does not use CMD11

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Hi Philip,


> -----Original Message-----
> From: Philip Rakity [mailto:prakity@xxxxxxxxxxx]
> Sent: Friday, April 29, 2011 4:16 AM
> To: Nath, Arindam
> Cc: linux-mmc@xxxxxxxxxxxxxxx
> Subject: Re: [PATCH] mmc: eMMC signal voltage does not use CMD11
> 
> 
> Hi Arindam,
> 
> Since this mmc_set_signal_voltage() routine will be used by SDIO and
> MMC should the code be moved
> the code core.c ?

Yes, mmc_set_signal_voltage() should be moved to core.c to support SDIO and MMC. Do you want me to do it, or you want to make the changes when posting eMMC patches?

> 
> I am not sure about drive strength or driver type since SDIO handles
> these differently then SD.

I don't think there is much difference in setting Bus Speed Mode and Driver Strength for SDIO3.0 cards, but seems like setting the Current Limit will be a little different from SD3.0. We can work on it after the base support is in the kernel, if that's okay with you.

Thanks,
Arindam


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