Omega2S+ - flash memory chip on SPI

[morfeus]

Hi,

I am a little confused reading Omega2S datasheet about SPI and what's written about booting it (Page 18.): "SPI_CS1 and SPI_CLK must be left floating". If I just connect flash memory chip, it shall be all ok while CLK and CS on the chip are input?
If it can be connected that way, is there any way to "mount" memory from that chip and use it "as it is an SD card"? How?

Thanks.