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? > * 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? Thanks, Wolfram
