On Renesas R-Car SDHI hardware, we sometimes had timeouts accessing the RPMB. This is because AutoCMD23/12 features needs a properly filled sbc to work correctly. But RPMB sends an individual CMD23. I could have fixed the driver but after some research concluded that fixing the core seems the proper thing to do. I also added some sanity checking while here. Please let me know what you think.
Tested on a R-Car M3-N. No timeouts showed up anymore. I'll try to improve the testing, though, to check if I can make the occasional timeouts from before more reproducible. And then confirm that this patchset improves the situation :) Wolfram Sang (3): mmc: core: validate user input for RPMB block count mmc: core: use mrq->sbc when sending CMD23 for RPMB mmc: core: remove obsolete mmc_set_blockcount() function drivers/mmc/core/block.c | 14 +++++++++----- drivers/mmc/core/core.c | 14 -------------- drivers/mmc/core/core.h | 2 -- 3 files changed, 9 insertions(+), 21 deletions(-) -- 2.11.0
