How to share SDRAM and CFI Flash pins in Qsys?

Hi All,

I have one board in which data line and control line of SDRAM and CFI Flash are shared. I am able to access both the memory with my SOPC builder design.Now I want migrate from SOPC to Qsys.I can observe that Altera - SDRAM Controller doesn't support pin sharing feature.

Would someone please suggest me how to share SDRAM and CFI pin in Qsys design? or

Please suggest me how to design SDRAM Controller which supports both Avalon Slave and Avalon Tristate interface.

Thanks,

Krupesh