linux-kernel - [PATCH] mtd: spi-nor: macronix: Add support for mx66u1g45g

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Date:   Mon, 24 Jan 2022 14:02:25 +0800
From:   Ley Foon Tan <leyfoon.tan@...ux.starfivetech.com>
To:     Tudor Ambarus <tudor.ambarus@...rochip.com>,
        Pratyush Yadav <p.yadav@...com>
Cc:     Michael Walle <michael@...le.cc>,
        Miquel Raynal <miquel.raynal@...tlin.com>,
        Richard Weinberger <richard@....at>,
        Vignesh Raghavendra <vigneshr@...com>,
        linux-mtd@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Ley Foon Tan <lftan.linux@...il.com>
Subject: [PATCH] mtd: spi-nor: macronix: Add support for mx66u1g45g

The Macronix mx66u1g45g [1] is a 1.8V, 1Gbit (128MB) flash device that
supports x1, x2, or x4 operation.

The mx66u1g45g is the smaller sibling of the mx66u2g45g that is
already supported.

Tested on StarFive Dubhe hardware on FPGA.
Validated by erase and read back, write and read back.

[1] https://www.macronix.com/Lists/Datasheet/Attachments/7877/MX66U1G45G,%201.8V,%201Gb,%20v1.4.pdf

Signed-off-by: Ley Foon Tan <leyfoon.tan@...ux.starfivetech.com>
---
 drivers/mtd/spi-nor/macronix.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/mtd/spi-nor/macronix.c b/drivers/mtd/spi-nor/macronix.c
index 97dba1ae7fb1..79ee808c5442 100644
--- a/drivers/mtd/spi-nor/macronix.c
+++ b/drivers/mtd/spi-nor/macronix.c
@@ -97,6 +97,9 @@ static const struct flash_info macronix_parts[] = {
 			      SPI_NOR_QUAD_READ) },
 	{ "mx66l1g55g",  INFO(0xc2261b, 0, 64 * 1024, 2048)
 		NO_SFDP_FLAGS(SPI_NOR_QUAD_READ) },
+	{ "mx66u1g45g",  INFO(0xc2253b, 0, 64 * 1024, 2048)
+		NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ)
+		FIXUP_FLAGS(SPI_NOR_4B_OPCODES) },
 	{ "mx66u2g45g",	 INFO(0xc2253c, 0, 64 * 1024, 4096)
 		NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ)
 		FIXUP_FLAGS(SPI_NOR_4B_OPCODES) },
-- 
2.25.1