Re: [PATCH v3 0/2] mmc: litex_mmc: Set mandatory idle clocks before CMD0

Gabriel L. Somlo
2026-04-26T15:59:31Z

On Sun, Apr 26, 2026 at 07:20:13PM +0800, Inochi Amaoto wrote:
> The litex_mmc driver assumes the card is already probed in the BIOS
> and skip the phy initialization. This will cause the command fail
> like the following when the old card is unplugged and then insert
> a new card:
>
> [ 62.923593] litex-mmc f0004000.mmc: Command (cmd 8) error, status -110
> [ 62.949717] litex-mmc f0004000.mmc: Command (cmd 55) error, status -110
> [ 62.976606] litex-mmc f0004000.mmc: Command (cmd 55) error, status -110
> [ 63.002516] litex-mmc f0004000.mmc: Command (cmd 55) error, status -110
> [ 63.028442] litex-mmc f0004000.mmc: Command (cmd 55) error, status -110
>
> Add required clock settings and initialization for the CMD 0, so it can
> probe the new card.
>
> Changed from v2:
> - https://lore.kernel.org/linux-mmc/20260424013615.470325-1-inochiama@gmail.com/
> 1. Remove the added function forward reference and add a new patch
> for moving litex_mmc_setclk() function
>
> Change from v1:
> - https://lore.kernel.org/linux-mmc/20260421025052.755471-1-inochiama@gmail.com/
> 1. use fsleep to replace udelay
>
> Inochi Amaoto (2):
> mmc: litex_mmc: Move litex_mmc_setclk() to bottom for reuse
> mmc: litex_mmc: Set mandatory idle clocks before CMD0

For the whole series:

Reviewed-by: Gabriel Somlo <gsomlo@gmail.com>

Thanks,
--Gabriel