about using UBI on MLC Nand flash

Artem B. Bityutskiy dedekind at yandex.ru
Mon Jul 31 05:19:27 EDT 2006


Marteo Tim wrote:
> OK, I'm glad to send it to you, include SAMSUNG&TOSHIBA's MLC NAND
> flash datasheet, please check your email, :)
Thanks!

> Due to cheap price, MLC NAND flash maybe use more and more popular,
> especially in bulky flash. Yaffs2 can already support MLC chips by
> zero page rewrites, and I want UBI can support it too. :)

Well, UBI works in this case as well. But it anyway needs 2 write 
operations. So, in your case, we'll spend 4K for UBI headers in each 
eraseblock... It's wastful, agree, but may be appropriate in some 
applications.

-- 
Best Regards,
Artem B. Bityutskiy,
St.-Petersburg, Russia.




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