change the sdram elpida EDB8064B1PB-8D-F to elpida EDB8164B3PF-8D-F for pandaboard

HI I am using  the http://omapedia.org/wiki/4AI.1.7_OMAP4_Icecream_Sandwich_Panda_Notes for my 4460 pandaboard.

Because the stop production of  the elpida EDB8064B1PB-8D-F, I have to change it to  EDB8164B3PF-8D-F.

But the times of the EDB8164B3PF-8D-F is different from that of EDB8064B1PB-8D-F.

How to configure the xloader 、uboot and kernel ?

I know that 4470 SOMs uses the   EDB8164B3PF LPDDR2 memory . Can I use the code for 4460 pandaboard ? Or use something else   LPDDR2 memory ?

Are there any patch?

thanks