I would like to ask about the setting for USDHC#3 of i.MX6SOLO.
My customer is trying to use USDHC#3 of i.MX6SOLO with SDR50 or SDR104 on Linux.
On their board, the power switching circuitry for SD-Card is designed based on your SABRE-AI board.
Now SD3_VSELECT cannot become HIGH on their board. And they saw the VSELCT can be controlled when they removed 4.7K ohm pull-down register from VSELECT line.
They think 4.7K ohm pull-down register is needed similarly to SABRE AI board.
Do you have any ideas for the cause of this phenomenon?