Part Number:AM5728
We have created a board (we do that sometimes) We're using both EMIFs and each has 2GBytes DDR3LP attached to it for a total of 4GBytes on the board.
1. Is it possible to let Linux use all of it?
2. Assuming not, how much can I feed Linux?
3. What do I need to do in Linux configuration to accomplish this maximum memory usage?
4. How do I setup the DMM? There is no 4GByte size in the LISA configuration registers. I see that I could (technically) setup the 4GByte area using two sections (LISA registers). What happens to device registers? Does the processor/memory manager prioritize register addresses over memory addresses? I guess I could limit the low end 2Gytes to 1 GByte or add a third LISA layout to bring back the 0x50000000 to 0x7fffffff area. At this point, I'm not worried about interleaving - I can handle that. Please be specific and show the LISA register values I need.
Thanks in advance
-Paul