Hi Fabio, On Mon, Jan 02, 2017 at 07:40:43PM -0200, Fabio Estevam wrote: > Hi Gary, > > On Mon, Jan 2, 2017 at 5:15 PM, Gary Bisson > <gary.bisson@xxxxxxxxxxxxxxxxxxx> wrote: > > > Have you seen such behavior? Is the eMMC on the SABRE platform working > > fine? > > Yes, just noticed the same on a mx6qsabresd. > > I haven't had a chance to debug this yet. > > If you could run a 'git bisect' that would be great. Thanks Doing a 'git bisect' shows that the culprit is [1]: e173f891 mmc: core: Update CMD13 polling policy when switch to HS DDR mode Unfortunately I don't know the JEDEC specification enough to know what's wrong but the patch broke 8-bit eMMC (HS DDR) on i.MX platforms. Which platform has it beend tested on? Ulf and Linus have been added to the loop since they know the details. Also, I confirm that reverting that patch on v4.10-rc1 fixes the issue. Regards, Gary [1] http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/drivers/mmc/core/mmc.c?id=e173f891 -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
