From nobody Fri Dec 19 15:49:41 2025 Received: from smtpout-02.galae.net (smtpout-02.galae.net [185.246.84.56]) (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 0622733F38A; Wed, 5 Nov 2025 17:27:34 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.246.84.56 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762363656; cv=none; b=YGroMJvQLetqEhptUUqM77NQIJ3ZfzUeJV4xmRixIekAWFZg1l60D8/UjIb4DoXvTYog2RnmtcqJUgof0PsSC8NdVc3nyGFtG0WYEnBhQiGXV8P6bqQ/JbyqCxmO2MSxtsGNsRZViWFZCOCpQYgIPXX/c6Cm+L3DJrq9hyrBf5E= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762363656; c=relaxed/simple; bh=/hd2rwzqq6wvo/9MrKI9Mzxj6DBYw3Osq4cAgFsgCRA=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=mDo18tf426KO95jBUf4knAcjCcJYgtzyL1gPyhddqzUJDA7eCVpUpS+A5AdGXsL1jPxrnSkoyynZXZsr5QE8Z30fEWzYSOmT1x39yUy28lGjOqa5RmefdzTElc1zIF+7kSlIUEms2KeV3PLa0xViSX0mN5HCaK0ZzcspKG9my5E= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com; spf=pass smtp.mailfrom=bootlin.com; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b=UbUavsTz; arc=none smtp.client-ip=185.246.84.56 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=bootlin.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b="UbUavsTz" Received: from smtpout-01.galae.net (smtpout-01.galae.net [212.83.139.233]) by smtpout-02.galae.net (Postfix) with ESMTPS id 775141A18C9; Wed, 5 Nov 2025 17:27:33 +0000 (UTC) Received: from mail.galae.net (mail.galae.net [212.83.136.155]) by smtpout-01.galae.net (Postfix) with ESMTPS id 4C87F60693; Wed, 5 Nov 2025 17:27:33 +0000 (UTC) Received: from [127.0.0.1] (localhost [127.0.0.1]) by localhost (Mailerdaemon) with ESMTPSA id 785DC10B50A99; Wed, 5 Nov 2025 18:27:31 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=dkim; t=1762363652; h=from:subject:date:message-id:to:cc:mime-version:content-type: content-transfer-encoding:in-reply-to:references; bh=/zPU0XqUL+X2RIpZhgDNsA5zIXOFJQTkFZ56bH7HEnA=; b=UbUavsTzOP9h0/HnnUKMJcTUiUfxtqZW2iTmzlxwOY8/3C/FvuuJvXIf7XFIFVPcRMK5hD xO0DUuUwddMuzN04xMRsZhPr4yzFGPClXEqbtMlK5vYU2K1Da1ZTM9hklb3townoHY1za7 uia+0hUiSU+YKtYWt2C9hqtX38WxEP1liwsLg5jLaw2i0r2J2wgFTPSYUsU077irN7lHKq 4Cpa5RjXjCR4ErF4CfFfNuUUBKdOGrvrmagW0n+Q1O++bpzaRitvxq1Tmgv+d/hfWzNZKF tnvFatIdKTqRZDYYkO2rjq4A/9uJ696oXkOGflwV2LiSbvAzME9ErbIlaiMq+g== From: Miquel Raynal Date: Wed, 05 Nov 2025 18:27:05 +0100 Subject: [PATCH 6/6] mtd: spi-nor: winbond: Add support for W25H02NWxxAM chips 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: <20251105-winbond-v6-18-rc1-spi-nor-v1-6-42cc9fb46e1b@bootlin.com> References: <20251105-winbond-v6-18-rc1-spi-nor-v1-0-42cc9fb46e1b@bootlin.com> In-Reply-To: <20251105-winbond-v6-18-rc1-spi-nor-v1-0-42cc9fb46e1b@bootlin.com> To: Tudor Ambarus , Pratyush Yadav , Michael Walle , Miquel Raynal , Richard Weinberger , Vignesh Raghavendra Cc: Thomas Petazzoni , Steam Lin , linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org, stable@vger.kernel.org X-Mailer: b4 0.14.2 X-Last-TLS-Session-Version: TLSv1.3 These chips must be described as none of the block protection information are discoverable. This chip supports 4 bits plus the top/bottom addressing capability to identify the protected blocks. Cc: stable@vger.kernel.org Signed-off-by: Miquel Raynal --- $ cat /sys/bus/spi/devices/spi0.0/spi-nor/partname cat: can't open '/sys/bus/spi/devices/spi0.0/spi-nor/partname': No such fil= e or directory $ cat /sys/bus/spi/devices/spi0.0/spi-nor/jedec_id efa022 $ cat /sys/bus/spi/devices/spi0.0/spi-nor/manufacturer winbond $ xxd -p /sys/bus/spi/devices/spi0.0/spi-nor/sfdp 53464450060101ff00060110800000ff84000102d00000ff03000102f000 00ffffffffffffffffffffffffffffffffffffffffffffffffffffffffff ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff ffffffffffffffffe520fbffffffff7f44eb086b083b42bbfeffffffffff 0000ffff40eb0c200f5210d800003652b50082ea14e2e96376337a757a75 f7a2d55c199148ffe970f8a1ffffffffffffffffffffffffffffffffff0a f0ff21ffdcff $ sha256sum /sys/bus/spi/devices/spi0.0/spi-nor/sfdp 679145368f2188ac975ec3f4c9b691e7e250147c13b6f18a28a9192700925d95 /sys/bus/= spi/devices/spi0.0/spi-nor/sfdp $ cat /sys/kernel/debug/spi-nor/spi0.0/params name (null) id ef a0 22 00 00 00 size 256 MiB write size 1 page size 256 address nbytes 4 flags HAS_SR_TB | 4B_OPCODES | HAS_4BAIT | HAS_LOCK | HAS_16BIT_SR | NO_RE= AD_CR | HAS_SR_TB_BIT6 | HAS_4BIT_BP | SOFT_RESET | NO_WP opcodes read 0xec dummy cycles 6 erase 0xdc program 0x34 8D extension none protocols read 1S-4S-4S write 1S-1S-4S register 1S-1S-1S erase commands 21 (4.00 KiB) [1] dc (64.0 KiB) [3] c7 (256 MiB) sector map region (in hex) | erase mask | overlaid ------------------+------------+--------- 00000000-0fffffff | [ 3] | no $ cat /sys/kernel/debug/spi-nor/spi0.0/capabilities Supported read modes by the flash 1S-1S-1S opcode 0x13 mode cycles 0 dummy cycles 0 1S-1S-2S opcode 0x3c mode cycles 0 dummy cycles 8 1S-2S-2S opcode 0xbc mode cycles 2 dummy cycles 2 1S-1S-4S opcode 0x6c mode cycles 0 dummy cycles 8 1S-4S-4S opcode 0xec mode cycles 2 dummy cycles 4 4S-4S-4S opcode 0xec mode cycles 2 dummy cycles 0 Supported page program modes by the flash 1S-1S-1S opcode 0x12 1S-1S-4S opcode 0x34 $ dd if=3D/dev/urandom of=3D./spi_test bs=3D1M count=3D2 2+0 records in 2+0 records out $ mtd_debug erase /dev/mtd0 0 2097152 Erased 2097152 bytes from address 0x00000000 in flash $ mtd_debug read /dev/mtd0 0 2097152 spi_read Copied 2097152 bytes from address 0x00000000 in flash to spi_read $ hexdump spi_read 0000000 ffff ffff ffff ffff ffff ffff ffff ffff * 0200000 $ sha256sum spi_read 4bda3a28f4ffe603c0ec1258c0034d65a1a0d35ab7bd523a834608adabf03cc5 spi_read $ mtd_debug write /dev/mtd0 0 2097152 spi_test Copied 2097152 bytes from spi_test to address 0x00000000 in flash $ mtd_debug read /dev/mtd0 0 2097152 spi_read Copied 2097152 bytes from address 0x00000000 in flash to spi_read $ sha256sum spi* 0f59f02ed36e0c9a0c075787e27175d3428ac008be71c2322dcaf9000ef1e324 spi_read 0f59f02ed36e0c9a0c075787e27175d3428ac008be71c2322dcaf9000ef1e324 spi_test $ mtd_debug erase /dev/mtd0 0 2097152 mtd_debug read /dev/mtd0 0 2097152 spi_read Erased 2097152 bytes from address 0x00000000 in flash $ mtd_debug read /dev/mtd0 0 2097152 spi_read sha256sum spi* Copied 2097152 bytes from address 0x00000000 in flash to spi_read $ sha256sum spi* 4bda3a28f4ffe603c0ec1258c0034d65a1a0d35ab7bd523a834608adabf03cc5 spi_read 0f59f02ed36e0c9a0c075787e27175d3428ac008be71c2322dcaf9000ef1e324 spi_test $ mtd_debug info /dev/mtd0 mtd.type =3D MTD_NORFLASH mtd.flags =3D MTD_CAP_NORFLASH mtd.size =3D 268435456 (256M) mtd.erasesize =3D 65536 (64K) mtd.writesize =3D 1 mtd.oobsize =3D 0 regions =3D 0 --- drivers/mtd/spi-nor/winbond.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/mtd/spi-nor/winbond.c b/drivers/mtd/spi-nor/winbond.c index 338e44db506a819b15e21f312c06ec13e6d37d28..fb855fe44733db5664c200520d1= 9a6be33edc323 100644 --- a/drivers/mtd/spi-nor/winbond.c +++ b/drivers/mtd/spi-nor/winbond.c @@ -363,6 +363,10 @@ static const struct flash_info winbond_nor_parts[] =3D= { /* W25H01NWxxAM */ .id =3D SNOR_ID(0xef, 0xa0, 0x21), .flags =3D SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB | SPI_NOR_TB_SR_BIT6 | SPI_= NOR_4BIT_BP, + }, { + /* W25H02NWxxAM */ + .id =3D SNOR_ID(0xef, 0xa0, 0x22), + .flags =3D SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB | SPI_NOR_TB_SR_BIT6 | SPI_= NOR_4BIT_BP, }, }; =20 --=20 2.51.0