On 12 January 2017 at 11:39, Gary Bisson
<gary.bisson@xxxxxxxxxxxxxxxxxxx> wrote:
> Hi all,
>
> On Tue, Jan 03, 2017 at 09:27:23AM -0200, Fabio Estevam wrote:
>> Hi Gary,
>>
>> On Tue, Jan 3, 2017 at 7:57 AM, Gary Bisson
>> <gary.bisson@xxxxxxxxxxxxxxxxxxx> wrote:
>>
>> > 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.
>>
>> Thanks for doing the bisect.
>>
>> I can also confirm that reverting e173f891 ("mmc: core: Update CMD13
>> polling policy when switch to HS DDR mode") makes the MMC card on
>> mx6qsabresd to be correctly detected:
>>
>> mmc2: new DDR MMC card at address 0001
>
> Gentle ping. Should we send a revert patch for next rc cycle?
Sorry, I have been busy catching up.
Allow me to have look within the next days or so.
Kind regards
Uffe
--
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
