[PATCH v6 1/4] mtd: spi-nor: otp: fix access to security registers in 4 byte mode

Michael Walle michael at walle.cc
Mon Jun 7 04:27:41 PDT 2021


The security registers either take a 3 byte or a 4 byte address offset,
depending on the address mode of the flash. Thus just leave the
nor->addr_width as is.

Fixes: cad3193fe9d1 ("mtd: spi-nor: implement OTP support for Winbond and similar flashes")
Signed-off-by: Michael Walle <michael at walle.cc>
Acked-by: Pratyush Yadav <p.yadav at ti.com>
Reviewed-by: Tudor Ambarus <tudor.ambarus at microchip.com>
---
 drivers/mtd/spi-nor/otp.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/mtd/spi-nor/otp.c b/drivers/mtd/spi-nor/otp.c
index 61036c716abb..91a4c510ed51 100644
--- a/drivers/mtd/spi-nor/otp.c
+++ b/drivers/mtd/spi-nor/otp.c
@@ -40,7 +40,6 @@ int spi_nor_otp_read_secr(struct spi_nor *nor, loff_t addr, size_t len, u8 *buf)
 	rdesc = nor->dirmap.rdesc;
 
 	nor->read_opcode = SPINOR_OP_RSECR;
-	nor->addr_width = 3;
 	nor->read_dummy = 8;
 	nor->read_proto = SNOR_PROTO_1_1_1;
 	nor->dirmap.rdesc = NULL;
@@ -84,7 +83,6 @@ int spi_nor_otp_write_secr(struct spi_nor *nor, loff_t addr, size_t len,
 	wdesc = nor->dirmap.wdesc;
 
 	nor->program_opcode = SPINOR_OP_PSECR;
-	nor->addr_width = 3;
 	nor->write_proto = SNOR_PROTO_1_1_1;
 	nor->dirmap.wdesc = NULL;
 
-- 
2.20.1




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