My board uses the porz pin on the AM4378 (I think, I'm no EE and can't find a schematic) to indicate whether the board should BOOTP (an internal feature) or not. It's a jumper I set on the board. What I'd like to do is have UBoot check to see if this pin is enabled. If so, I can TFTP the image over per normal but then run a special app afterwards-- otherwise I'd just boot normally from NAND.
There doesn't seem to be a GPIO that I can look at to see if the BOOTP pin is enabled or not--- or is there? I'm thinking it must be some kind of memory mapped register but I didn't find anything like that in the documentation. Anyone have any recommendations? Is this purely a hardware "thang" and I'm SOL?
