[U-Boot] mmc: disable UHS modes if Vcc cannot be switched on and off

[Jaehoon Chung]

On 01/23/2018 09:03 PM, Eugeniy Paltsev wrote:
> On Tue, 2018-01-23 at 10:44 +0900, Jaehoon Chung wrote:
>> On 01/23/2018 03:38 AM, Eugeniy Paltsev wrote:
>>> Hi Jean-Jacques,
>>>
>>> after commit "mmc: disable UHS modes if Vcc cannot be switched on and off" (04a2ea248f)
>>> we got MMC broken on several (at least two) platforms with DesignWare MMC controller.
>>>
>>> The error log (with debug enabled in drivers/mmc/mmc.c and drivers/mmc/dw_mmc.c) is next:
>>> --------------->8-------------
>>> MMC:   Synopsys Mobile storage: 0
>>> Buswidth = 0, clock: 400000
>>> selecting mode MMC legacy (freq : 0 MHz)
>>> Buswidth = 1, clock: 400000
>>> Buswidth = 1, clock: 400000
>>> Sending CMD0
>>> dwmci_send_cmd: Timeout.
>>> mmc_init: -110, time 19
>>> ** Bad device mmc 0 **
>>> --------------->8-------------
>>>
>>> Any ideas how to fix this?
>>
>> Could you share which git repository you use? 
> 
> I use u-boot master branch from git://git.denx.de/u-boot.git
> 
> last commits:
> --------------->8-------------
> 485c13c Merge git://git.denx.de/u-boot-dm
> b79221a lib: fdtdec: Fix some style violations
> 2e38662 lib: fdtdec: Fix whitespace style violations
> 29d11b8 core: Make device_is_compatible live-tree compatible
> 147c607 core: Add {ofnode, dev}_translate_address functions
> --------------->8-------------
> 

I guess that this issue has already been fixed.

http://patchwork.ozlabs.org/patch/862160/
http://patchwork.ozlabs.org/patch/864607/

Best Regards,
Jaehoon Chung

>> Best Regards,
>> Jaehoon Chung
>>
>>>
>>> Thanks.
>>>
>>
>>