On 09 Sep 11:35 AM, Roger Quadros wrote:
> Ezequiel,
> 
> On 09/08/2014 02:27 PM, Ezequiel Garcia wrote:
> > This commit adds a new platform-data boolean property that enables use
> > of a flash-based bad block table. This can also be enabled by setting
> > the 'nand-on-flash-bbt' devicetree property.
> 
> I'm not much aware of how on-flash-BBT works internally, but will it break 
> things if
> we keep on-flash-BBT "enabled" as the default option and add a DT property 
> only to
> explicitly disable the on-flash-BBT?
> 

No, that wouldn't work because the DT property already exists and it works to
enable the flash BBT when it's present.

Documentation/devicetree/bindings/mtd/nand.txt

Of course, we can add a new no-nand-on-flash-bbt, but I really don't see the
point. Users can just put the property in all the devicetree board files where
it's needed.

And moreover, I don't want to change the default behavior of the driver; it's
better to allow to *add* a new feature, if such feature is desired.
Otherwise, users with some data in a flash's last blocks would be wiped and
replaced with the BBT.
-- 
Ezequiel Garcia, VanguardiaSur
www.vanguardiasur.com.ar
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