Hi,
[quote]
I have a question. Is there a possible way to interface two 2MB sdram to a single emifb interface ?
[/quote]
Yes, EMIFB will support 2 SDRAM devices in 16 bit mode.
Please refer chapter 5.12.2 in OMAPL137 data manual.
http://www.ti.com.cn/general/cn/docs/lit/getliterature.tsp?genericPartNumber=omap-l137&fileType=pdf