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About DM368 DDR2 high level Schematic

Genius 3400 points
Other Parts Discussed in Thread: TMS320DM368

Hi:

       Our project want to using 256M Bytes DDR2 in DM368, So we draw schematic base on the document  of TMS320DM368 Digital Media System-on-Chip (DMSoC), it in page of 110, Pic is following:

And we use  two chips  of Micron DDR MT47H128M8 (16 Meg x 8 x 8 banks) and enhance memory to 256M Bytes.

I want to know how to change setting in UBL or Uboot to support 256M memory?

Thanks a lot。