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

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.