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Date: Fri, 5 Dec 2008 08:28:31 -0800
From: David Brown <mtd@davidb.org>
To: Du Zhongdong <axdududu@gmail.com>
Subject: Re: [NAND] Do we support COPY_BACK operation in nand flash?
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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