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@xxxxxxxxxxxxxxxx> 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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