How do I create a EPCS serial flash controller using the "Generic Serial Flash Interface Intel FPGA IP" controller in a Max10 device. The EPCS serial flash controller is not supported in Max 10 device.

I would like to instantiate the equivalent of an EPCS serial flash controller, used by an old Cyclone I design, in a Max10 device. I have instantiated a "Generic Serial Flash Interface Intel FPGA IP" controller, and enabled the SPI pins and disabled the AS pin, so the signals are exported.

I don't need it for FPGA configuration, I need it for board level backward compatibility.

It all looks pretty good, except instead of one serial data IO pin, there is a 4-bit wide data bus exported from the block. So I assume this is some quad-spi thing.

Is there a way to instantiate a serial flash controller with a single data IO pin?