Cubieboard (Allwinner A10 ARMv7, 4GB onboard nand flash).

Online instructions keep saying that the onboard nand flash can be accessed as
a disk drive through /dev/nand[ab], /dev/nand[12] or some such, which would be
really useful for installing a Linux system on (moving it from uSD card to nand
flash).

The device nodes /dev/nand* are simply absent. As far as I can tell they are
handled by the sunxi_nand kernel module:

# modprobe -v sunxi_nand
insmod /lib/modules/3.19.3-1-default/kernel/drivers/mtd/mtd.ko 
insmod /lib/modules/3.19.3-1-default/kernel/drivers/mtd/nand/nand_ids.ko 
insmod /lib/modules/3.19.3-1-default/kernel/lib/bch.ko 
insmod /lib/modules/3.19.3-1-default/kernel/drivers/mtd/nand/nand_bch.ko 
insmod /lib/modules/3.19.3-1-default/kernel/drivers/mtd/nand/nand_ecc.ko 
insmod /lib/modules/3.19.3-1-default/kernel/drivers/mtd/nand/nand.ko 
insmod /lib/modules/3.19.3-1-default/kernel/drivers/mtd/nand/sunxi_nand.ko 

The modules load, but the devices remain absent.

Problem exists on oS 13.2 armv7, and factory builds 269.1, 293.8 (latest as of
now).