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From: tkuw584924@gmail.com
To: linux-mtd@lists.infradead.org
Cc: tudor.ambarus@linaro.org, pratyush@kernel.org, michael@walle.cc,
	miquel.raynal@bootlin.com, richard@nod.at, vigneshr@ti.com,
	tkuw584924@gmail.com, Bacem.Daassi@infineon.com,
	Takahiro Kuwano <Takahiro.Kuwano@infineon.com>,
	stable@vger.kernel.org
Subject: [PATCH] mtd: spi-nor: spansion: Keep CFR5V[6] as 1 in Octal DTR enable/disable
Date: Fri,  6 Jan 2023 12:06:01 +0900	[thread overview]
Message-ID: <20230106030601.6530-1-Takahiro.Kuwano@infineon.com> (raw)

From: Takahiro Kuwano <Takahiro.Kuwano@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@infineon.com>
Cc: stable@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


             reply	other threads:[~2023-01-06  3:08 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-01-06  3:06 tkuw584924 [this message]
2023-01-06  9:47 ` [PATCH] mtd: spi-nor: spansion: Keep CFR5V[6] as 1 in Octal DTR enable/disable Tudor Ambarus
2023-01-06  9:55   ` Tudor Ambarus
2023-01-10  4:39   ` Takahiro Kuwano
2023-01-10 16:47   ` [PATCH 1/2] mtd: spi-nor: spansion: Consider reserved bits in CFR5 register Tudor Ambarus
2023-01-11  6:28     ` Dhruva Gole
2023-01-18  7:34     ` Takahiro Kuwano
2023-01-23 14:37     ` Pratyush Yadav
2023-01-23 16:31       ` Dhruva Gole
2023-01-24 10:43         ` Pratyush Yadav
2023-01-24 11:12           ` Dhruva Gole
2023-01-24 12:03             ` Pratyush Yadav
2023-02-01  7:14         ` Takahiro Kuwano
2023-01-31  9:00     ` Tudor Ambarus

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