linux-kernel - [PATCH] mtd: spi-nor: add dual and quad read support for w25q128

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Message-Id: <20191110053222.22945-1-gch981213@gmail.com>
Date:   Sun, 10 Nov 2019 13:32:21 +0800
From:   Chuanhong Guo <gch981213@...il.com>
To:     linux-mtd@...ts.infradead.org
Cc:     Chuanhong Guo <gch981213@...il.com>,
        Tudor Ambarus <tudor.ambarus@...rochip.com>,
        Miquel Raynal <miquel.raynal@...tlin.com>,
        Richard Weinberger <richard@....at>,
        Vignesh Raghavendra <vigneshr@...com>,
        linux-kernel@...r.kernel.org
Subject: [PATCH] mtd: spi-nor: add dual and quad read support for w25q128

The only w25q128 variant I could find with 0xef4018 as ID is
w25q128fv, which supports both dual and quad read mode.
Add these two flags in chip info.

Signed-off-by: Chuanhong Guo <gch981213@...il.com>
---
 drivers/mtd/spi-nor/spi-nor.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/mtd/spi-nor/spi-nor.c b/drivers/mtd/spi-nor/spi-nor.c
index f89620005198..6adf16259841 100644
--- a/drivers/mtd/spi-nor/spi-nor.c
+++ b/drivers/mtd/spi-nor/spi-nor.c
@@ -2479,7 +2479,10 @@ static const struct flash_info spi_nor_ids[] = {
 	},
 	{ "w25q80", INFO(0xef5014, 0, 64 * 1024,  16, SECT_4K) },
 	{ "w25q80bl", INFO(0xef4014, 0, 64 * 1024,  16, SECT_4K) },
-	{ "w25q128", INFO(0xef4018, 0, 64 * 1024, 256, SECT_4K) },
+	{
+		"w25q128", INFO(0xef4018, 0, 64 * 1024, 256,
+			SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ)
+	},
 	{ "w25q256", INFO(0xef4019, 0, 64 * 1024, 512, SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
 	{ "w25q256jvm", INFO(0xef7019, 0, 64 * 1024, 512,
 			     SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
-- 
2.21.0