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From: JaimeLiao <jaimeliao.tw@gmail.com>
To: linux-mtd@lists.infradead.org, miquel.raynal@bootlin.com, richard@nod.at
Cc: jaimeliao@mxic.com.tw, jaimeliao.tw@gmail.com, angyanyu13@gmail.com
Subject: [PATCH v3 2/5] mtd: spinand: Add support continuous read mode
Date: Thu,  9 Nov 2023 19:24:57 +0800	[thread overview]
Message-ID: <20231109112500.4966-3-jaimeliao@mxic.com.tw> (raw)
In-Reply-To: <20231109112500.4966-1-jaimeliao@mxic.com.tw>

The patch supports setting the "CONT" bit of the configuration
register and create spinand_continuous_read_enable/disable functions.

Signed-off-by: JaimeLiao <jaimeliao@mxic.com.tw>
---
 drivers/mtd/nand/spi/core.c | 11 +++++++++++
 include/linux/mtd/spinand.h |  1 +
 2 files changed, 12 insertions(+)

diff --git a/drivers/mtd/nand/spi/core.c b/drivers/mtd/nand/spi/core.c
index 849ccfedbc72..cfc295f5e31b 100644
--- a/drivers/mtd/nand/spi/core.c
+++ b/drivers/mtd/nand/spi/core.c
@@ -193,6 +193,17 @@ static int spinand_init_quad_enable(struct spinand_device *spinand)
 			       enable ? CFG_QUAD_ENABLE : 0);
 }
 
+static int spinand_continuous_read_enable(struct spinand_device *spinand)
+{
+	return spinand_upd_cfg(spinand, CFG_CONT_READ_ENABLE,
+			       CFG_CONT_READ_ENABLE);
+}
+
+static int spinand_continuous_read_disable(struct spinand_device *spinand)
+{
+	return spinand_upd_cfg(spinand, CFG_CONT_READ_ENABLE, 0);
+}
+
 static int spinand_ecc_enable(struct spinand_device *spinand,
 			      bool enable)
 {
diff --git a/include/linux/mtd/spinand.h b/include/linux/mtd/spinand.h
index badb4c1ac079..bb9288ffd898 100644
--- a/include/linux/mtd/spinand.h
+++ b/include/linux/mtd/spinand.h
@@ -154,6 +154,7 @@
 #define REG_CFG			0xb0
 #define CFG_OTP_ENABLE		BIT(6)
 #define CFG_ECC_ENABLE		BIT(4)
+#define CFG_CONT_READ_ENABLE	BIT(2)
 #define CFG_QUAD_ENABLE		BIT(0)
 
 /* status register */
-- 
2.17.1


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  parent reply	other threads:[~2023-11-09 11:25 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-11-09 11:24 [PATCH v3 0/5] mtd: spinand: Add continuous read mode support JaimeLiao
2023-11-09 11:24 ` [PATCH v3 1/5] Add clk wizard and mxic host controller driver JaimeLiao
2023-11-09 14:13   ` Miquel Raynal
2023-11-10  1:18     ` liao jaime
2023-11-09 11:24 ` JaimeLiao [this message]
2023-11-09 11:24 ` [PATCH v3 3/5] mtd: spinand: Add continuous read state JaimeLiao
2023-11-09 11:24 ` [PATCH v3 4/5] mtd: spinand: Add support continuous read operation JaimeLiao
2023-11-09 11:25 ` [PATCH v3 5/5] mtd: spinand: macronix: Add continuous read support for Macronix Flash JaimeLiao

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