Hi, Does anybody have several NAND flash chips working simultaneously with either any of the (corrected) Allwinner block drivers or the MTD drivers? I'm thinking to build a programming adaptor for 3 or 4 chips. I'd appreciate if you let me know of your experiences with sunxi NAND controller chip enable lines.
I haven't found any support for my latest 16 nm Hynix chip in the git tree, so I've added it by reverse-engineering on top of the Allwinner standalone driver 2.12 (hex). In fact, the 2.12 driver, at least in the form I was able to get, was still quite buggy even though it had less bugs compared to the current driver in sunxi-3.4. Also I've added support for a very similar Hynix chip that I don't have but which is featured in the A80 NAND flash binary blob. Both chips can work at 50 MHz, which is faster than any currently supported Hynix chips. As a remark, the version 2.9 of the Allwinner driver in sunxi-3.4 doesn't seem to work correctly with clean memory. It would need to be upgraded in the main sunxi-linux tree. I would never buy an Allwinner tablet with a NAND flash: not after looking in their driver code :) Thanks and regards, --Vladimir -- You received this message because you are subscribed to the Google Groups "linux-sunxi" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
