linux-kernel - [PATCH 1/1] mtd: spi-nor: everspin: add em004lxb entry

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Date: Fri,  5 Apr 2024 12:01:04 +0200
From: Flavio Suligoi <f.suligoi@...m.it>
To: Tudor Ambarus <tudor.ambarus@...aro.org>,
	Pratyush Yadav <pratyush@...nel.org>,
	Michael Walle <mwalle@...nel.org>,
	Miquel Raynal <miquel.raynal@...tlin.com>,
	Richard Weinberger <richard@....at>,
	Vignesh Raghavendra <vigneshr@...com>
Cc: linux-mtd@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	Flavio Suligoi <f.suligoi@...m.it>
Subject: [PATCH 1/1] mtd: spi-nor: everspin: add em004lxb entry

Add the Everspin EM0004LXB 4Mb (512KB) Industrial STT-MRAM Persistent
Memory.
This device is JEDEC compatible (JESD251 and JESD251-1), but it is not
able to provide SFDP information.

Link: https://www.everspin.com/file/158244/download

Signed-off-by: Flavio Suligoi <f.suligoi@...m.it>
---
 drivers/mtd/spi-nor/everspin.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/mtd/spi-nor/everspin.c b/drivers/mtd/spi-nor/everspin.c
index 5f321e24ae7d..4741930ce9a8 100644
--- a/drivers/mtd/spi-nor/everspin.c
+++ b/drivers/mtd/spi-nor/everspin.c
@@ -31,6 +31,14 @@ static const struct flash_info everspin_nor_parts[] = {
 		.size = SZ_512K,
 		.sector_size = SZ_512K,
 		.flags = SPI_NOR_NO_ERASE | SPI_NOR_NO_FR,
+	}, {
+		.id = SNOR_ID(0x6b, 0xbb, 0x13),
+		.name = "em004lxb",
+		.size = SZ_512K,
+		.sector_size = SZ_512K,
+		.flags = SPI_NOR_NO_ERASE | SPI_NOR_NO_FR | SPI_NOR_HAS_LOCK |
+			 SPI_NOR_HAS_TB | SPI_NOR_4BIT_BP | SPI_NOR_BP3_SR_BIT6,
+		.no_sfdp_flags = SPI_NOR_SKIP_SFDP,
 	}
 };
 
-- 
2.34.1