Ive been developing a board based on the AT91rm9200 (arm920t). I have added 16 MB ram to this board, and am looking to add some flash.
I want Linux installed on this board. (this is basically an educational project) My question is, do i HAVE to add a parallel flash? will such a system be capable of running Linux if i just add an 8MB SPI dataflash?
As far as i know, a parallel flash is helpful only if one wants to boot direclty off the flash, and not use the bootloader that may be burnt into the controller`s on board ROM. Is this correct?
Another thing..how can i interact with the installed Linux? I heard thar BusyBox provides some shell utilities..is it possible to write a driver such that a shell prompt or something is displayed on a terminal program running on a PC, thats connected to this board with a serial link?
As i said, its an educational project, so "why dyu want to do this" has no particular answer :-) Please advise me, as im totally new to this.