[PATCH] mtd: spi-nor: spansion: Keep CFR5V[6] as 1 in Octal DTR enable/disable

tkuw584924 at gmail.com tkuw584924 at gmail.com
Thu Jan 5 19:06:01 PST 2023


From: Takahiro Kuwano <Takahiro.Kuwano at infineon.com>

CFR5V[6] is reserved bit and must always be 1.

Fixes: c3266af101f2 ("mtd: spi-nor: spansion: add support for Cypress Semper flash")
Signed-off-by: Takahiro Kuwano <Takahiro.Kuwano at infineon.com>
Cc: stable at vger.kernel.org
---
 drivers/mtd/spi-nor/spansion.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/mtd/spi-nor/spansion.c b/drivers/mtd/spi-nor/spansion.c
index b621cdfd506f..4e094a432d29 100644
--- a/drivers/mtd/spi-nor/spansion.c
+++ b/drivers/mtd/spi-nor/spansion.c
@@ -21,8 +21,8 @@
 #define SPINOR_REG_CYPRESS_CFR3V		0x00800004
 #define SPINOR_REG_CYPRESS_CFR3V_PGSZ		BIT(4) /* Page size. */
 #define SPINOR_REG_CYPRESS_CFR5V		0x00800006
-#define SPINOR_REG_CYPRESS_CFR5V_OCT_DTR_EN	0x3
-#define SPINOR_REG_CYPRESS_CFR5V_OCT_DTR_DS	0
+#define SPINOR_REG_CYPRESS_CFR5V_OCT_DTR_EN	0x43
+#define SPINOR_REG_CYPRESS_CFR5V_OCT_DTR_DS	0x40
 #define SPINOR_OP_CYPRESS_RD_FAST		0xee
 
 /* Cypress SPI NOR flash operations. */
-- 
2.25.1




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