[U-Boot] [PATCH 9/9] mx23: Use PIO mode support for MMC

[Stefano Babic]

On 23/01/2013 12:26, Marek Vasut wrote:

>>> Hi Otavio, hi Marek,
>>>
>>> let me say some words about this discussion. I agree that if there is no
>>> support for DMA for MX23, we could add support with PIO mode. However,
>>> there should be a very good reason, because as far as I understand,
>>> added support for DMA is valid for mxs platform. The solution introduced
>>> with this patchset lets also the door open for people that can use MX28
>>> in PIO mode. I think (I have already seen in ML Marek's patchset for it)
>>> the way to fix DMA for mx23 and then add support for MMC is the rught
>>> way to do.
>>
>> So you'd like to have this patch ported to Marek's patchset so the
>> support for PIO mode is kept available? Instead of enabling it for
>> MX23 we can have a config option which allows force PIO mode and
>> disable DMA. This is what you want?
> 
> Forcing PIO is nonsense, why would it be of any use?

No, I agree with Marek - if DMA is then working also for MX23, we do not
need PIO at all.

Best regards,
Stefano Babic

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