[PATCH v3 1/3] UBI: Do not zero out EC and VID on ECC-ed NOR flashes

Pratyush Yadav p.yadav at ti.com
Tue Dec 8 13:10:52 EST 2020


Richard,

On 01/12/20 03:57PM, Pratyush Yadav wrote:
> For NOR flashes EC and VID are zeroed out before an erase is issued to
> make sure UBI does not mistakenly treat the PEB as used and associate it
> with an LEB.
> 
> But on some flashes, like the Cypress Semper S28 SPI NOR flash family,
> multi-pass page programming is not allowed on the default ECC scheme.
> This means zeroing out these magic numbers will result in the flash
> throwing a page programming error.
> 
> Do not zero out EC and VID for such flashes. A writesize > 1 is an
> indication of an ECC-ed flash.

Patches 2/3 and 3/3 have been picked up in the spi-nor tree. Can you 
please pick this patch up?

-- 
Regards,
Pratyush Yadav
Texas Instruments India



More information about the linux-mtd mailing list