On Mon, Jun 26, 2017 at 10:16:50PM +0200, Wolfram Sang wrote: > > > this series adds support for the internal DMAC used by r8a779[56] SoCs. > > This is achieved by adding a new variant of the SDHI driver for this > > DMA controller with compat strings for the r8a779[56] SoCs. > > Compat strings for these SoCs are also removed from the existing SYS DMAC > > variant of the SDHI driver. > > Okay, I tested some more today. My conclusion is that the series works > so far. However, it quite often triggers a SDR50 retune with one card. > And that sends an explicit CMD12 which we don't handle well. I always > suspected the code to be imperfect, now I have a proof. So, that is a > good thing but seems unrelated to this series to me. > > Another card does not retune and works flawlessly. > > I will sleep over it, re-test tomorrow and if my findings will get > confirmed, then I'll give my Reviewed-by tags to this series. I could successfully move around big files on Lager/H2 and Salvator-X/M3-W with multiple cards. The md5sum of the files matched. The transfer speedups match Simon's numbers. On M3-W, one card has problems because it wants to retune and that causes problems independently of this DMA driver. M3-W works fine with other cards. The card in question works fine with H2. Tested-by: Wolfram Sang <wsa+renesas@xxxxxxxxxxxxxxxxxxxx>
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