SRAM in a custom board

Make sure when you program the sof onto the device that it doesn't trigger a reset on the sram as well (doubtful it would tie into it unless you did that manually in the fpga design).

You can assign the memory to various addresses (I've never done it personally though) using the segmentation functionality.

Do you not have enought onchip memory resources for what you are trying to do? If you're running out but have enabled all the various methods to shrink the memory footprint, then I'd start there.