[PATCH v3 15/23] mtd: spi-nor: winbond: Prepare introduction of W25QxxRV-M parts
Miquel Raynal <[email protected]>
| Newsgroups | gmane.linux.documentation,gmane.linux.drivers.mtd,gmane.linux.ports.arm.kernel,gmane.linux.kernel |
|---|---|
| Message-ID | <20260813-winbond-v7-1-spi-nor-rv-addition-v3-15-b637cf120d5c@bootlin.com> |
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). Since they share the IDs but not the names, we must hide the names using a fixup. Signed-off-by: Miquel Raynal <[email protected]> --- drivers/mtd/spi-nor/winbond.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/mtd/spi-nor/winbond.c b/drivers/mtd/spi-nor/winbond.c index 055c5833f687..b86458b22838 100644 --- a/drivers/mtd/spi-nor/winbond.c +++ b/drivers/mtd/spi-nor/winbond.c @@ -608,6 +608,8 @@ static const struct spi_nor_fixup winbond_fixups[] = { .fixups = &winbond_nor_multi_die_fixups }, { .id = SNOR_ID(0xef, 0x40, 0x22), .match = winbond_jv_match, .fixups = &winbond_nor_multi_die_fixups }, + { .id = SNOR_ID(0xef, 0x70), .match = winbond_rv_match, + .fixups = &winbond_nor_partname_fixups }, { .id = SNOR_ID(0xef, 0x70, 0x21), .match = winbond_jv_match, .fixups = &winbond_nor_multi_die_fixups }, { .id = SNOR_ID(0xef, 0x70, 0x22), .match = winbond_jv_match, -- 2.54.0