match the device. Pinctrl will need to be added before this will work, in addition to migrating the current board_foo.c method of configuring these pins to something else. Non-FDT systems won't be affected, yet.
address line assignment. Provide convenince function to set these things.
on at91rm9200 so far. The files.at91 has listed a nand driver for ages, but it never existed.