Subject: Problem with mxc_nand driver

From: [email-masked] (Eric Bénard)
Date: Mon, 28 Sep 2009 11:43:46 +0200

Hi,

Jernej Turnsek a ?crit :
> after writing root fs image into nand partition, running the image and
> then checking the first empty block I've got following OOB data which
> is suspicious to me:
> 
> OOB:
> 	ff ff 85 19 03 20 ff ff
> 	ff 65 02 08 00 00 00 ff
> 	ff ff ff ff ff ff ff ff
> 	ff ff 03 ff ff ff ff ff
> 	ff ff ff ff ff ff ff ff
> 	ff ff 03 ff ff ff ff ff
> 	ff ff ff ff ff ff ff ff
> 	ff ff 03 ff ff ff ff ff
> 
> One can see that bytes on offset 2 to 5 are not empty and when using
> the smallpage_memorybased badblock_pattern byte 6 is not FF like it
> should be.
> 
> Anyone knows what is going on here?
> 
which configuration are you using ? SW ECC + without the commit ?

Eric