Patch for flash unlock

[Soma sundaram Veerappan]

Hi,

> If your flash is CFI compliant, the code is already
> in place. Depends on
> the kind of flash that you are speaking of.

I am using Intel Strata Flash.

I have attached the  mail response from another
mailing list for the Flash Erase problem.
 
> > Erase at 0x00240000 failed immediately: -EROFS. Is
> the
> > sector locked?
> 
> You're probably using a flash chip that powers up
> with all blocks 
> locked, such as Intel K/L/P StrataFlash.  What to do
> about these has 
> been discussed periodically on linux-mtd with no
> real conclusion.  I'd 
> suggest booting from a cramfs partition (this is a
> good idea for other 
> reasons, avoiding jffs2 write/erase/gc activity from
> interfering with 
> access to executables) and have startup scripts do a
> flash_unlock 
> /dev/mtd<x> prior to mounting your jffs2 partition. 
> There are also 
> various patches that unlock all blocks at flash chip
> probe time, etc. 
> that can be searched on that list.

I tried mtd utility flash_unlock,but it didn't
help.got error "Could not get MTD device  info from
/dev/mtd1".
But i could see the entry in /proc/mtd.
 
Regards,
Soma sundaram.V


	

	
		
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