All:

I finally have our system up and running with yaffs2 as the file system, 
using our own in house NAND controller. But I want to speed things up by 
using some features that the hardware guys provided. One of which is 
handling movement of pages (with ECC correction) when needed.  The driver 
would keep track of number of times a page is accessed and move the page 
if needed.  the driver Software can say source page, destination page ( 
which would be in another erased block) then the controller will move it. 
But SW has the opportunity to update the spare area ( tag information) for 
the new copy. So I was thinking I could somehow 'fool' the yaffs code to 
think the page data is now elsewhere (Perhaps by incrementing the sequence 
Number ). Any ideas, or do I need to go into some yaffs structures and 
update them. ( Which I could be doing while the data is being moved by the 
hardware).

This is for handling read disturb errors, which I read yaffs does not 
handle yet.






Henry C Gofforth / Pr Software Engineer / Air Transport Displays Software 
4 
MS 131-102, Cedar Rapids, IA, USA
Phone: 319-295-0373 / VPN: 295-0373 / Fax: 319-295-8100 
hcgoffo2@rockwellcollins.com
www.rockwellcollins.com