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

[Jaehoon Chung]

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? 

Best Regards,
Jaehoon Chung

> 
> Thanks.
>