Ah, interesting. Thank you for the correction and additional input. I would be glad to be wrong here as it makes things so much easier. My knowledge is quite vague in this area and comes mainly from NextThings user forum. For example consider the following threads:
If you want sound information, indeed, such forums tend to be pretty hard to use. The linux-sunxi website and mailing lists are a lot better (and a lot more technical as a consequence).
You could start from http://linux-sunxi.org/NAND
Stefan