MMC issue with kingstone 4GB during enumeration

Hi, Any clue on this below issue ? This happens with kingstone 4GB SDHC (High speed). After a retry it works fine. Basically the APP command retries and fails. Anyone faced this before. These are the errors reported: [6.015420] mmc0: card never left busy state [6.018371] mmc0: error

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

2015-09-17 20:27 GMT+08:00 Ulf Hansson : > On 15 September 2015 at 09:13, Barry Song <21cn...@gmail.com> wrote: >> 2015-08-25 20:05 GMT+08:00 Ulf Hansson : >>> On 20 August 2015 at 02:16, Barry Song <21cn...@gmail.com> wrote: 2015-08-18 1:11

Re: [PATCH V3] mmc: block: Add new ioctl to send multi commands

On 17/09/15 07:59, Ulf Hansson wrote: > [...] > + /* +* The caller must have CAP_SYS_RAWIO, and must be calling this on the +* whole block device, not on a partition. This prevents overspray +* between sibling partitions. +*/