Re: [PATCH v2 1/2] mmc: core: enable CMD19 tuning for DDR50 mode

2015-09-29 Thread Ulf Hansson
On 28 September 2015 at 05:23, Barry Song <21cn...@gmail.com> wrote: > From: Weijun Yang > > As SD Specifications Part1 Physical Layer Specification Version > 3.01 says, CMD19 tuning is available for unlocked cards in transfer > state of 1.8V signaling mode. The small

[PATCH v2 1/2] mmc: core: enable CMD19 tuning for DDR50 mode

2015-09-27 Thread Barry Song
From: Weijun Yang As SD Specifications Part1 Physical Layer Specification Version 3.01 says, CMD19 tuning is available for unlocked cards in transfer state of 1.8V signaling mode. The small difference between v3.00 and 3.01 spec means that CMD19 tuning is also available for