On Wed, Aug 10, 2016 at 03:12:24PM +0200, Wolfram Sang wrote: > Hi Simon, > > > In this patchset I have attempted to address all review received > > for the v3 patch-set. I also believe that I have resolved a problem > > where tuning would timeout under some circumstances: this seems to > > have been due to several bugs introduced between v1 and v3. > > So, you didn't see timeouts anymore? Yes, that is correct. I have not seen them at all with this patchset. I will extend my testing as I integrate these changes on other SoCs and boards. > > * Currently I am seeing speeds of up to 48MB/s with these patches and > > 30MB/s without using a SanDisk Extreme Pro 8Gb microSDHC UHS-1 card. > > > > * I am also seeing 45MB/s with these patches and 34MB/s without using > > a SanDisk Ultra 64Gb microSDXC UHS-1 card. > > I got similar numbers for my SanDisk and Samsung cards. While the SDR104 > speed is not that what I hoped for, it is still an improvement over > SDR50. We are currently investigating if DMA causes a bottleneck > somewhere perhaps. Except for a minor comment, I'd think these patches > are good to go in and we could improve incrementally from here: > > Tested-by: Wolfram Sang <wsa+renesas@xxxxxxxxxxxxxxxxxxxx> > > Maybe Ulf can have another high-level view on those. I guess he is more > experienced with the tuning stuff? Yes, of course such input would be welcome. I'd like to work towards getting these changes merged.
