[PATCH v3 08/23] mtd: spi-nor: winbond: Prepare introduction of W25QxxRV-Q/N parts

Takahiro.Kuwano at infineon.com Takahiro.Kuwano at infineon.com
Wed Aug 19 22:58:58 PDT 2026


> There is an ID collision between the JV and RV families. 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). They also do not require the multi-die fixups which must remain
> assigned to the JV chips.
> 
> Finally, since they share the IDs but not the names, we must hide the
> names using a fixup.
> 
> Signed-off-by: Miquel Raynal <miquel.raynal at bootlin.com>

Reviewed-by: Takahiro Kuwano <takahiro.kuwano at infineon.com>



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