I see. Even so, though, what kind of bus is the flash chip interface normally hooked up through?
Legacy ISA or LPC.
Also Disable the shadow of the BIOS range and do a write to that range and see what the write line on the flash does. It might just be hooked up without anything fancy.
How would that be done? Would that be a parameter in the COTS BIOS?
Its a chipset thing. You need to read the chipset docs and you will need a oscope.
Something you might also do is google for MTD and your flash part number or motherboard and see if anyone has MTD up and going for your board. That my yeild some useful info.
-- Richard A. Smith