[PATCH v3 11/23] mtd: spi-nor: winbond: Add support for W25Q12RV-Q/N

[Takahiro.Kuwano at infineon.com]

Hi Miquel,

> There is an ID collision with the chip of same density from the JV
> family. Both chips are very similar in practice, it is mostly a matter
> of electrical differences (mostly power consumption being lower).
> 
> As a significant difference, RV chips identify themselves as supporting
> the new SFDP (rev F) field which forces an alternate write SR2
> opcode (0x31).
> 
> Signed-off-by: Miquel Raynal <miquel.raynal at bootlin.com>
> ---
> + cat /sys/bus/spi/devices/spi0.0/spi-nor/jedec_id
> ef4018
> + cat /sys/bus/spi/devices/spi0.0/spi-nor/manufacturer
> winbond
> + xxd -p /sys/bus/spi/devices/spi0.0/spi-nor/sfdp
> 534644500a0100ff00080117800000ffffffffffffffffffffffffffffff
> ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
> ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
> ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
> ffffffffffffffffe520f9ffffffff0344eb086b083b42bbfeffffffffff
                          ^^^^^^^^
Just noticed size is wrong like patch #18.
BFPT DWORD2 advertises memory density in bits (0-based).
In 128Mb parts, this should be 0x07FFFFFF.
Need post_bfpt_fixup.

Thanks,
Takahiro