I have reviewed the iMX8M-Mini reference manual and in section 10.1.1.1 it states that the ECSPI block has four slave select signals on each block. This is also reflected in the config registers.
However, I am not able to find a pinmux that will enable anything else than SS0 from any of the blocks.
Anybody know how to get the SS[1:3] signals out of the device.?