[NAND] Do we support COPY_BACK operation in nand flash?

[David Brown]

On Fri, Dec 05, 2008 at 04:22:09PM +0800, Du Zhongdong wrote:

>I'm trying to writing a mtd-based driver for HY27UK08BGFM nand flash,
>and in the data sheet, there's a COPY-BACK program which is
>'configured to quickly and efficiently rewrite data stored in one page
>without utilizing an external memory.'

Do keep in mind that copy-back doesn't verify the ECC on the data, so
if it is used for garbage collection errors will accumulate.

David