RCM4200 + SPI (use same as ser flash)

Is it possible to use the same SPI port for other SPI devices as that used by the serial flash on board the RCM4200 module.

Basically I would provide an extra CS line / lines for the rest of my devices (4 in all), and would restrict use of the serial flash at the same time as my other SPI devices.

Do you foresee any problems, or precautions I should take?

Thanks