From nobody Tue Jun 16 19:39:19 2026 Received: from metis.whiteo.stw.pengutronix.de (metis.whiteo.stw.pengutronix.de [185.203.201.7]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id CC4EA37C921 for ; Wed, 29 Apr 2026 13:59:00 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.203.201.7 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777471143; cv=none; b=sP7TRo9yk973niVffkYWDZzy5D1r1sUQUM5/DSPaNWJwOoEEPOQ7mvGjQoaW+EP7wSKgUgYxhHAIQlf10hnLl4bODFDNte7JS67PM6blxkrCCqTo35O369H5QR7C4aaTumKCWotfZcfTjAQBOhKl4zdKFQ6xrww5wQH9UQIvyJw= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777471143; c=relaxed/simple; bh=gljeMceHu0jjpKfiqiJaoBdSkOu5Yck26w5x9ilnz2Y=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:To:Cc; b=i9GVUbiBX9PzNRa/PpWXa8Yv2S3K83wo+XqZkaAWs+NvQ48F+Uh5+hUqScJKrlSWqt7dsK3XlEbQkMZ0gt18ylyk3HF/8A1qd8CSw/GPDqC7vmv1jW2xvmz0iUJjQeQEWDT0KdO3AI+eL23WMygttEPP1T9+Bny48uDU/TwFlXQ= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=pengutronix.de; spf=pass smtp.mailfrom=pengutronix.de; arc=none smtp.client-ip=185.203.201.7 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=pengutronix.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=pengutronix.de Received: from dude06.red.stw.pengutronix.de ([2a0a:edc0:0:1101:1d::5c]) by metis.whiteo.stw.pengutronix.de with esmtp (Exim 4.92) (envelope-from ) id 1wI5RK-0008Q6-UH; Wed, 29 Apr 2026 15:58:58 +0200 From: Fabian Pflug Date: Wed, 29 Apr 2026 15:58:45 +0200 Subject: [PATCH] mtd: spi-nor: cypress: Add support for CY15V104QSN Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260429-v6-18-topic-infineon_fram-v1-1-504d241942a4@pengutronix.de> X-B4-Tracking: v=1; b=H4sIAJQO8mkC/x3MQQqEMAxA0atI1hOopZQ6VxlkqJpoFqbSigji3 S0u3+L/CwploQLf5oJMhxRJWtF+GhiXqDOhTNVgjfXG2Q4Pj23APW0yoiiLUtI/57hicMYxD5G C9VD7LRPL+b5//X0/+TWdWWsAAAA= X-Change-ID: 20260429-v6-18-topic-infineon_fram-8404ffbae826 To: Tudor Ambarus , Pratyush Yadav , Michael Walle , Miquel Raynal , Richard Weinberger , Vignesh Raghavendra Cc: linux-kernel@vger.kernel.org, linux-mtd@lists.infradead.org, kernel@pengutronix.de, Fabian Pflug X-Mailer: b4 0.14.3 X-SA-Exim-Connect-IP: 2a0a:edc0:0:1101:1d::5c X-SA-Exim-Mail-From: f.pflug@pengutronix.de X-SA-Exim-Scanned: No (on metis.whiteo.stw.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-kernel@vger.kernel.org Infineon CY15V104QSN is an FRAM Chip with Quad-SPI interface, a size of 4Mb and a nominal Voltage of 1.8V It should be the same as CY15B104QSN, just with a different Voltage range. (3.0V) Cypress is an Infineon company. The FRAM was originally developed by Cypress. Link: https://www.infineon.com/assets/row/public/documents/10/49/infineon-c= y15b104qsn-cy15v104qsn-4mb-excelon-ultra-ferroelectric-ram-f-ram-serial-qua= d-spi-512k-8-108-mhz-industrial-datasheet-en.pdf Signed-off-by: Fabian Pflug --- drivers/mtd/spi-nor/Makefile | 1 + drivers/mtd/spi-nor/core.c | 1 + drivers/mtd/spi-nor/core.h | 1 + drivers/mtd/spi-nor/cypress.c | 24 ++++++++++++++++++++++++ 4 files changed, 27 insertions(+) diff --git a/drivers/mtd/spi-nor/Makefile b/drivers/mtd/spi-nor/Makefile index 5dd9c35f6b6f8..73267677c22ad 100644 --- a/drivers/mtd/spi-nor/Makefile +++ b/drivers/mtd/spi-nor/Makefile @@ -2,6 +2,7 @@ =20 spi-nor-objs :=3D core.o sfdp.o swp.o otp.o sysfs.o spi-nor-objs +=3D atmel.o +spi-nor-objs +=3D cypress.o spi-nor-objs +=3D eon.o spi-nor-objs +=3D esmt.o spi-nor-objs +=3D everspin.o diff --git a/drivers/mtd/spi-nor/core.c b/drivers/mtd/spi-nor/core.c index 20ea80450f222..b52219216f872 100644 --- a/drivers/mtd/spi-nor/core.c +++ b/drivers/mtd/spi-nor/core.c @@ -1941,6 +1941,7 @@ int spi_nor_sr2_bit7_quad_enable(struct spi_nor *nor) =20 static const struct spi_nor_manufacturer *manufacturers[] =3D { &spi_nor_atmel, + &spi_nor_cypress, &spi_nor_eon, &spi_nor_esmt, &spi_nor_everspin, diff --git a/drivers/mtd/spi-nor/core.h b/drivers/mtd/spi-nor/core.h index ceff412f7d65a..95b09ca981c8b 100644 --- a/drivers/mtd/spi-nor/core.h +++ b/drivers/mtd/spi-nor/core.h @@ -585,6 +585,7 @@ struct sfdp { =20 /* Manufacturer drivers. */ extern const struct spi_nor_manufacturer spi_nor_atmel; +extern const struct spi_nor_manufacturer spi_nor_cypress; extern const struct spi_nor_manufacturer spi_nor_eon; extern const struct spi_nor_manufacturer spi_nor_esmt; extern const struct spi_nor_manufacturer spi_nor_everspin; diff --git a/drivers/mtd/spi-nor/cypress.c b/drivers/mtd/spi-nor/cypress.c new file mode 100644 index 0000000000000..20079d3338e73 --- /dev/null +++ b/drivers/mtd/spi-nor/cypress.c @@ -0,0 +1,24 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (C) 2026 Pengutronix, Fabian Pflug + */ + +#include + +#include "core.h" + +static const struct flash_info cypress_nor_parts[] =3D { + { + .id =3D SNOR_ID(0x50, 0x51, 0x80, 0x06), + .name =3D "cy15x104qs", + .size =3D SZ_512K, + .sector_size =3D SZ_512K, + .flags =3D SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ | SPI_NOR_NO_ERASE, + } +}; + +const struct spi_nor_manufacturer spi_nor_cypress =3D { + .name =3D "cypress", + .parts =3D cypress_nor_parts, + .nparts =3D ARRAY_SIZE(cypress_nor_parts), +}; --- base-commit: 7d0a66e4bb9081d75c82ec4957c50034cb0ea449 change-id: 20260429-v6-18-topic-infineon_fram-8404ffbae826 Best regards, --=20 Fabian Pflug