linux-kernel - [PATCH v2 1/2] mtd: spi-nor: Add support for EN25Q80A

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Message-ID: <20190218120421.5034-1-frieder.schrempf@kontron.de>
Date:   Mon, 18 Feb 2019 12:04:43 +0000
From:   Schrempf Frieder <frieder.schrempf@...tron.de>
To:     "Tudor.Ambarus@...rochip.com" <Tudor.Ambarus@...rochip.com>,
        Marek Vasut <marek.vasut@...il.com>
CC:     Schrempf Frieder <frieder.schrempf@...tron.de>,
        David Woodhouse <dwmw2@...radead.org>,
        Brian Norris <computersforpeace@...il.com>,
        "Boris Brezillon" <bbrezillon@...nel.org>,
        Richard Weinberger <richard@....at>,
        "linux-mtd@...ts.infradead.org" <linux-mtd@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: [PATCH v2 1/2] mtd: spi-nor: Add support for EN25Q80A

From: Frieder Schrempf <frieder.schrempf@...tron.de>

This adds support for the EON EN25Q80A, a 8Mb SPI NOR chip.
It is used on i.MX6 boards by Kontron Electronics GmbH
(N60xx, N61xx).
It was only tested with a single data line connected, by writing and
reading random data with dd.

Signed-off-by: Frieder Schrempf <frieder.schrempf@...tron.de>
---
Changes in v2:
==============
* Add information about boards using the chip and testing to the commit
  message
* Remove SPI_NOR_QUAD_READ as the chip does not support 1_1_4 read
  command (0x6b)
* Move the entry after en25q64 for alphabetical order
---
 drivers/mtd/spi-nor/spi-nor.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/mtd/spi-nor/spi-nor.c b/drivers/mtd/spi-nor/spi-nor.c
index 6e13bbd1aaa5..7d7436facc57 100644
--- a/drivers/mtd/spi-nor/spi-nor.c
+++ b/drivers/mtd/spi-nor/spi-nor.c
@@ -1740,6 +1740,8 @@ static const struct flash_info spi_nor_ids[] = {
 	{ "en25q32b",   INFO(0x1c3016, 0, 64 * 1024,   64, 0) },
 	{ "en25p64",    INFO(0x1c2017, 0, 64 * 1024,  128, 0) },
 	{ "en25q64",    INFO(0x1c3017, 0, 64 * 1024,  128, SECT_4K) },
+	{ "en25q80a",   INFO(0x1c3014, 0, 64 * 1024,   16,
+			SECT_4K | SPI_NOR_DUAL_READ) },
 	{ "en25qh32",   INFO(0x1c7016, 0, 64 * 1024,   64, 0) },
 	{ "en25qh128",  INFO(0x1c7018, 0, 64 * 1024,  256, 0) },
 	{ "en25qh256",  INFO(0x1c7019, 0, 64 * 1024,  512, 0) },
-- 
2.17.1