Re: [PATCH V1 1/1] linux: drivers: mtd: spi-nor: gigadevice.c

[Michael Walle]

> > { "gd25q128", INFO(0xc84018, 0, 64 * 1024, 256)
> >             FLAGS(SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB)
>
> The locking support is not part of the JEDEC SFDP standard, but vendors
> can define their own SFDP tables where they describe the locking
> support. So for now, if you want to enable locking you have to specify
> the locking flags, whatever they are. There are different flavors of
> block protection locking, with 3 or 4 block protection bits, their
> order, etc. You'll have to check the datasheet.

I've seen that gigadevice has their own proprietary SFDP table which
also indicates locking. I'd prefer to have a parser for these, esp.
because the patch is coming from the vendor itself :)

-michael