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

[Du Zhongdong]

On Sat, Dec 6, 2008 at 12:28 AM, David Brown <mtd at davidb.org> wrote:
> 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
>


thanks, David. I didn't think of that before :)


Du Zhongdong