Re: [PATCH] mmc: add new au6601 driver

Oleksij Rempel
2014-07-03T13:55:05Z

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Hi Ulf,

i would like to use advantages of sg buffer and make dma part of my
driver a bit simpler, for example make use of dma_map_sg, but this
controller accept only 4K alignet 32bit addresses. Are there any way to
force this alignment in mmc-code?

Am 16.06.2014 12:02, schrieb Ulf Hansson:
> Hi Oleksij,
>
> Sorry for a late reply.
>
> On 8 May 2014 11:58, Oleksij Rempel <linux@rempel-privat.de> wrote:
>> This driver is based on documentation which was based on my RE-work and
>> comparision with other MMC drivers.
>> It works in legacy mode and can provide 20MB/s R/W spead for most modern
>> SD cards, even if at least 40MB/s should be possible on this hardware.
>> It was not possible provide description for all register. But some of them
>> are important to make this hardware work in some unknown way.
>>
>> Biggest part of RE-work was done by emulating AU6601 in QEMU.
>>

--
Regards,
Oleksij

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