linux-kernel - [PATCH v6 2/2] mtd: spi-nor: add support for GD25Q256

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Message-Id: <1503557275-11316-1-git-send-email-andy.yan@rock-chips.com>
Date:   Thu, 24 Aug 2017 14:47:55 +0800
From:   Andy Yan <andy.yan@...k-chips.com>
To:     cyrille.pitchen@...ev4u.fr
Cc:     boris.brezillon@...e-electrons.com, marek.vasut@...il.com,
        computersforpeace@...il.com, richard@....at,
        linux-mtd@...ts.infradead.org, dwmw2@...radead.org,
        linux-kernel@...r.kernel.org, Andy Yan <andy.yan@...k-chips.com>
Subject: [PATCH v6 2/2] mtd: spi-nor: add support for GD25Q256

Add support for GD25Q256, a 32MiB SPI Nor flash
from GigaDevice.

Signed-off-by: Andy Yan <andy.yan@...k-chips.com>
---

Changes in v6: None
Changes in v5: None
Changes in v4: None
Changes in v3: None
Changes in v2: None

 drivers/mtd/spi-nor/spi-nor.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/mtd/spi-nor/spi-nor.c b/drivers/mtd/spi-nor/spi-nor.c
index 3b94308..dc89ef2 100644
--- a/drivers/mtd/spi-nor/spi-nor.c
+++ b/drivers/mtd/spi-nor/spi-nor.c
@@ -872,6 +872,8 @@ static int spi_nor_is_locked(struct mtd_info *mtd, loff_t ofs, uint64_t len)
 	return ret;
 }
 
+static int macronix_quad_enable(struct spi_nor *nor);
+
 /* Used when the "_ext_id" is two bytes at most */
 #define INFO(_jedec_id, _ext_id, _sector_size, _n_sectors, _flags)	\
 		.id = {							\
@@ -999,6 +1001,12 @@ static const struct flash_info spi_nor_ids[] = {
 			SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ |
 			SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB)
 	},
+	{
+		"gd25q256", INFO(0xc84019, 0, 64 * 1024, 512,
+			SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ |
+			SPI_NOR_4B_OPCODES | SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB)
+			.quad_enable = macronix_quad_enable,
+	},
 
 	/* Intel/Numonyx -- xxxs33b */
 	{ "160s33b",  INFO(0x898911, 0, 64 * 1024,  32, 0) },
-- 
2.7.4