linux-kernel - [PATCH] mtd: spi-nor: gigadevice: add support for gd25lq128e

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Message-Id: <20220523055541.724422-1-tom@tom-fitzhenry.me.uk>
Date:   Mon, 23 May 2022 15:55:40 +1000
From:   Tom Fitzhenry <tom@...-fitzhenry.me.uk>
To:     Tudor Ambarus <tudor.ambarus@...rochip.com>,
        Pratyush Yadav <p.yadav@...com>,
        Michael Walle <michael@...le.cc>,
        Miquel Raynal <miquel.raynal@...tlin.com>,
        Richard Weinberger <richard@....at>,
        Vignesh Raghavendra <vigneshr@...com>
Cc:     Martijn Braam <martijn@...xit.nl>,
        Tom Fitzhenry <tom@...-fitzhenry.me.uk>,
        linux-mtd@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH] mtd: spi-nor: gigadevice: add support for gd25lq128e

The GD25LQ128EWIGR[0] reports an JEDEC id with a different vendor,
otherwise it seems to fit neatly in the gigadevice list.

Tested to work on the Pine64 PinePhone Pro[1].

Attribution: initial version was written by
Martijn Braam <martijn@...xit.nl> for the Pine64 vendor kernel[2].

Also in use in vendor u-boot builds[3].

0. https://www.gigadevice.com/flash-memory/gd25lq128e/
1. https://wiki.pine64.org/wiki/PinePhone_Pro
2. https://gitlab.com/pine64-org/linux/-/merge_requests/29
3. https://github.com/Tow-Boot/Tow-Boot/blob/b94838dfb8971cdeb841d3922051aaa8e108b085/boards/pine64-pinephonePro/0001-mtd-spi-nor-ids-Add-GigaDevice-GD25LQ128E-entry.patch

Signed-off-by: Tom Fitzhenry <tom@...-fitzhenry.me.uk>
---
 drivers/mtd/spi-nor/gigadevice.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/mtd/spi-nor/gigadevice.c b/drivers/mtd/spi-nor/gigadevice.c
index 33895002eeea..871c9dee11dc 100644
--- a/drivers/mtd/spi-nor/gigadevice.c
+++ b/drivers/mtd/spi-nor/gigadevice.c
@@ -56,6 +56,10 @@ static const struct flash_info gigadevice_nor_parts[] = {
 		FLAGS(SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB)
 		NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ |
 			      SPI_NOR_QUAD_READ) },
+	{ "gd25lq128e", INFO(0x257018, 0, 64 * 1024, 256)
+		FLAGS(SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB)
+		NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ |
+			      SPI_NOR_QUAD_READ) },
 	{ "gd25q128", INFO(0xc84018, 0, 64 * 1024, 256)
 		FLAGS(SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB)
 		NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ |
-- 
2.36.0