linux-kernel - [PATCH v3 4/7] mtd: spi-nor: add octo read flag for flash mt35xu512aba

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Message-ID: <1540287311-1572-5-git-send-email-yogeshnarayan.gaur@nxp.com>
Date:   Tue, 23 Oct 2018 09:37:26 +0000
From:   Yogesh Narayan Gaur <yogeshnarayan.gaur@....com>
To:     "linux-mtd@...ts.infradead.org" <linux-mtd@...ts.infradead.org>,
        "boris.brezillon@...tlin.com" <boris.brezillon@...tlin.com>,
        "broonie@...nel.org" <broonie@...nel.org>,
        "marek.vasut@...il.com" <marek.vasut@...il.com>,
        "vigneshr@...com" <vigneshr@...com>,
        "linux-spi@...r.kernel.org" <linux-spi@...r.kernel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>
CC:     "robh@...nel.org" <robh@...nel.org>,
        "mark.rutland@....com" <mark.rutland@....com>,
        "shawnguo@...nel.org" <shawnguo@...nel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "computersforpeace@...il.com" <computersforpeace@...il.com>,
        "frieder.schrempf@...eet.de" <frieder.schrempf@...eet.de>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Yogesh Narayan Gaur <yogeshnarayan.gaur@....com>
Subject: [PATCH v3 4/7] mtd: spi-nor: add octo read flag for flash
 mt35xu512aba

Add octo read flag for flash mt35xu512aba.
This flash, mt35xu512aba, is only complaint to SFDP JESD216B and does
not seem to support newer JESD216C standard that provides auto
detection of Octal mode capabilities and opcodes. Therefore, this
capability is manually added using new SPI_NOR_OCTO_READ flag.

Signed-off-by: Vignesh R <vigneshr@...com>
Signed-off-by: Yogesh Gaur <yogeshnarayan.gaur@....com>
---
Changes for v3:
- Modified string 'octal' with 'octo'.
Changes for v2:
- Incorporated review comments of Boris and Vignesh

 drivers/mtd/spi-nor/spi-nor.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/mtd/spi-nor/spi-nor.c b/drivers/mtd/spi-nor/spi-nor.c
index 120c3bc..a04f579 100644
--- a/drivers/mtd/spi-nor/spi-nor.c
+++ b/drivers/mtd/spi-nor/spi-nor.c
@@ -1413,7 +1413,8 @@ static const struct flash_info spi_nor_ids[] = {
 	/* Micron */
 	{
 		"mt35xu512aba", INFO(0x2c5b1a, 0, 128 * 1024, 512,
-			SECT_4K | USE_FSR | SPI_NOR_4B_OPCODES)
+			SECT_4K | USE_FSR | SPI_NOR_OCTO_READ |
+			SPI_NOR_4B_OPCODES)
 	},
 
 	/* PMC */
-- 
2.7.4