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From: Vignesh Raghavendra <vigneshr@ti.com>
To: Tudor Ambarus <tudor.ambarus@microchip.com>
Cc: Miquel Raynal <miquel.raynal@bootlin.com>,
	Richard Weinberger <richard@nod.at>,
	Vignesh Raghavendra <vigneshr@ti.com>,
	Ashish Kumar <Ashish.Kumar@nxp.com>,
	<linux-mtd@lists.infradead.org>, <linux-kernel@vger.kernel.org>,
	John Garry <john.garry@huawei.com>
Subject: [PATCH 1/3] mtd: spi-nor: Split mt25qu512a (n25q512a) entry into two
Date: Thu, 5 Dec 2019 12:29:33 +0530	[thread overview]
Message-ID: <20191205065935.5727-2-vigneshr@ti.com> (raw)
In-Reply-To: <20191205065935.5727-1-vigneshr@ti.com>

mt25q family is different from n25q family of devices, even though manf
ID and device IDs are same. mt25q flash has bit 6 set in 5th byte of
READ ID response which can be used to distinguish it from n25q variant.
mt25q flashes support stateless 4 Byte addressing opcodes where as n25q
flashes don't. Therefore, have two separate entries for mt25qu512a and
n25q512a.

Fixes: 9607af6f857f ("mtd: spi-nor: Rename "n25q512a" to "mt25qu512a (n25q512a)"")
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
---
 drivers/mtd/spi-nor/spi-nor.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/mtd/spi-nor/spi-nor.c b/drivers/mtd/spi-nor/spi-nor.c
index f4afe123e9dc..01efea022990 100644
--- a/drivers/mtd/spi-nor/spi-nor.c
+++ b/drivers/mtd/spi-nor/spi-nor.c
@@ -2459,15 +2459,16 @@ static const struct flash_info spi_nor_ids[] = {
 	{ "n25q256a",    INFO(0x20ba19, 0, 64 * 1024,  512, SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
 	{ "n25q256ax1",  INFO(0x20bb19, 0, 64 * 1024,  512, SECT_4K | SPI_NOR_QUAD_READ) },
 	{ "n25q512ax3",  INFO(0x20ba20, 0, 64 * 1024, 1024, SECT_4K | USE_FSR | SPI_NOR_QUAD_READ) },
+	{ "mt25qu512a",  INFO6(0x20bb20, 0x104400, 64 * 1024, 1024,
+			       SECT_4K | USE_FSR | SPI_NOR_DUAL_READ |
+			       SPI_NOR_QUAD_READ | SPI_NOR_4B_OPCODES) },
+	{ "n25q512a",    INFO(0x20bb20, 0, 64 * 1024, 1024, SECT_4K |
+			      SPI_NOR_QUAD_READ) },
 	{ "n25q00",      INFO(0x20ba21, 0, 64 * 1024, 2048, SECT_4K | USE_FSR | SPI_NOR_QUAD_READ | NO_CHIP_ERASE) },
 	{ "n25q00a",     INFO(0x20bb21, 0, 64 * 1024, 2048, SECT_4K | USE_FSR | SPI_NOR_QUAD_READ | NO_CHIP_ERASE) },
 	{ "mt25ql02g",   INFO(0x20ba22, 0, 64 * 1024, 4096,
 			      SECT_4K | USE_FSR | SPI_NOR_QUAD_READ |
 			      NO_CHIP_ERASE) },
-	{ "mt25qu512a (n25q512a)", INFO(0x20bb20, 0, 64 * 1024, 1024,
-					SECT_4K | USE_FSR | SPI_NOR_DUAL_READ |
-					SPI_NOR_QUAD_READ |
-					SPI_NOR_4B_OPCODES) },
 	{ "mt25qu02g",   INFO(0x20bb22, 0, 64 * 1024, 4096, SECT_4K | USE_FSR | SPI_NOR_QUAD_READ | NO_CHIP_ERASE) },
 
 	/* Micron */
-- 
2.24.0


  reply	other threads:[~2019-12-05  6:59 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-12-05  6:59 [PATCH 0/3] mtd: spi-nor: Update mt25q/n25q entries Vignesh Raghavendra
2019-12-05  6:59 ` Vignesh Raghavendra [this message]
2019-12-05  7:24   ` [EXT] [PATCH 1/3] mtd: spi-nor: Split mt25qu512a (n25q512a) entry into two Ashish Kumar
2019-12-06  9:32     ` Vignesh Raghavendra
2019-12-05  6:59 ` [PATCH 2/3] mtd: spi-nor: Add entries for mt25q variants Vignesh Raghavendra
2019-12-05  6:59 ` [PATCH 3/3] mtd: spi-nor: Add USE_FSR flag for n25q* entries Vignesh Raghavendra
2019-12-05 11:21   ` John Garry
2019-12-10 16:41   ` Tudor.Ambarus
2019-12-12  7:31     ` Vignesh Raghavendra
2019-12-24  9:05 ` [PATCH 0/3] mtd: spi-nor: Update mt25q/n25q entries Tudor.Ambarus

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