Configuring SDcard interface voltage compatibility in stm32mp157f-evl

[Sean_62]

Hello,

I need to change the SD card interface voltage on stm32mp157f-evl board.

As per my understanding we can control this via uSD_LDO_SEL, it can be 2.9volts or 1.8 volts.

I need to change to 1.8 volts, how can one control this one via software?

Warm regards,

S

[Sean_62]

For more information I have looked into more and I find that function "mmc_sdio_init_card" failes. Here "mmc_send_io_op_cond" is successful but function "mmc_io_rw_direct_host" fails.

-S