Can mtd support 10 bytes ECC

Thomas Gleixner tglx at linutronix.de
Thu Aug 4 07:41:15 EDT 2005


On Wed, 2005-08-03 at 09:38 +0530, Sunil Khandelwal wrote:
> Hi
> 
> NAND Flash controller on our ARM based board has a mode where in, it writes 
> 10 bytes of Reed-Solomon code on last 10 Bytes of OOB.

10 bytes RS code for 2048 bytes of data ? 
Does the controller write the bytes automatically ?
Is there a datasheet of this controller available ?

>  On read it can do 
> error correction in the data read before transferring them to buffers. Does 
> existing mtd layer can work with such controllers.

It will not work out of the box, but without further information I can
not even tell you which changes are necessary to fix this.

tglx







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