ONFI 4GB and beyond NAND support

[Paulraj, Sandeep]

> 
> I have two questions for the MTD gang, but couldn't find the answer in
> the archives, nor elsewhere on the web.
> 
> 1. What's the plan, if any, for the MTD NAND layer to support the ONFI
> standard?
I guess somebody has to write the necessary code and send the patch.
ONFI NANds get all the necessary info from a param table I believe. 

> 2. What's the plan, if any, for the MTD NAND layer to support 4 GB NANDs
> (and greater)?
This is already there for more than a year. Use the latest kernels

> 
> The two questions could be linked, as we're looking at Micron 4 GB, 8 GB
> and 16 GB MLC parts that support the ONFI standard, that we'd like to
> use on a board that my company is building.
> 
> I've hacked support for the 4 GB part by having the MTD layer recognize
> it as 4 GB - 1 erase block, which gets it inside the uint32_t limit.
> That hack won't really work for 8 GB and beyond. I'd certainly be
> willing to help with the design review and coding if I had a clue what
> folks were thinking.
This means that you are probably using an old kernel. Update to the newest kernels.

> 
> Thanks in advance for any pointers!
> 
> Blair Barnett
> 
Sandeep