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{ "id": 2194284, "url": "http://patchwork.ozlabs.org/api/covers/2194284/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-mtd/cover/20260208061919.30498-1-farbere@amazon.com/", "project": { "id": 3, "url": "http://patchwork.ozlabs.org/api/projects/3/?format=api", "name": "Linux MTD development", "link_name": "linux-mtd", "list_id": "linux-mtd.lists.infradead.org", "list_email": "linux-mtd@lists.infradead.org", "web_url": null, "scm_url": null, "webscm_url": null, "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20260208061919.30498-1-farbere@amazon.com>", "list_archive_url": null, "date": "2026-02-08T06:19:15", "name": "[0/4] mtd: spi-nor: winbond: Fix protection handling and enable dual/quad reads", "submitter": { "id": 84667, "url": "http://patchwork.ozlabs.org/api/people/84667/?format=api", "name": "Eliav Farber", "email": "farbere@amazon.com" }, "mbox": "http://patchwork.ozlabs.org/project/linux-mtd/cover/20260208061919.30498-1-farbere@amazon.com/mbox/", "series": [ { "id": 491410, "url": "http://patchwork.ozlabs.org/api/series/491410/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-mtd/list/?series=491410", "date": "2026-02-08T06:19:19", "name": "mtd: spi-nor: winbond: Fix protection handling and enable dual/quad reads", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/491410/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/covers/2194284/comments/", "headers": { "Return-Path": "\n <linux-mtd-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n secure) header.d=lists.infradead.org header.i=@lists.infradead.org\n header.a=rsa-sha256 header.s=bombadil.20210309 header.b=a4t6TeW/;\n\tdkim=fail reason=\"signature verification failed\" (2048-bit key;\n unprotected) header.d=amazon.com header.i=@amazon.com header.a=rsa-sha256\n header.s=amazoncorp2 header.b=hnzwWpEG;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=none (no SPF record) smtp.mailfrom=lists.infradead.org\n (client-ip=2607:7c80:54:3::133; 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08 Feb 2026 06:19:26 +0000", "from EX19MTAUWA001.ant.amazon.com [205.251.233.236:20860]\n by smtpin.naws.us-west-2.prod.farcaster.email.amazon.dev [10.0.7.219:2525]\n with esmtp (Farcaster)\n id 6acaa630-3c74-4b85-b879-7e20e6a0d65c; Sun, 8 Feb 2026 06:19:26 +0000 (UTC)", "from EX19D001UWA001.ant.amazon.com (10.13.138.214) by\n EX19MTAUWA001.ant.amazon.com (10.250.64.217) with Microsoft SMTP Server\n (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA) id 15.2.2562.35;\n Sun, 8 Feb 2026 06:19:25 +0000", "from dev-dsk-farbere-1a-46ecabed.eu-west-1.amazon.com\n (172.19.116.181) by EX19D001UWA001.ant.amazon.com (10.13.138.214) with\n Microsoft SMTP Server (version=TLS1_2,\n cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA) id 15.2.2562.35; Sun, 8 Feb 2026\n 06:19:24 +0000" ], "DKIM-Signature": [ "v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed;\n\td=lists.infradead.org; s=bombadil.20210309; h=Sender:\n\tContent-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post:\n\tList-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-ID:Date:Subject:CC\n\t:To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From:\n\tResent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:\n\tList-Owner; bh=t6dKe7z5ixetOK2pyZUERcJ25s4sXWvAOn8DUd3Fomw=; b=a4t6TeW/JDKxpn\n\tz89740qROCWqOgB6zuPZBwM7C3pHkCYK+eZS5CLYWAoJqZiSQRdSXqUqA55s+mT6JGgkc51z/BR8L\n\tI/M2YIRGjhuj2N6flF6bnzfPjlleQW5+9G7cOiWaWUDOpt1Lj8sYSYmHx5hKA9859kFn1HePazkvI\n\t3tjdrrsRnwUHynR9zl0gNfH4euhTsixk/UxfatB+KnNobJeae91nDoruLeiPAFXPPP2KN/KneCAnl\n\tOMsmIwgFqoeJg4URxmvOVTcpGiwcqLilODbF9TD9NBxBzjP38BDRWCCOdscubnWhmd9wJemF2fH/S\n\tg280yxLMnonFITHJSc2w==;", "v=1; a=rsa-sha256; c=relaxed/relaxed;\n d=amazon.com; i=@amazon.com; q=dns/txt; s=amazoncorp2;\n t=1770531572; x=1802067572;\n h=from:to:cc:subject:date:message-id:mime-version:\n content-transfer-encoding;\n bh=WF+qi4ivY0NEP6GZqQRBPyCq0+EsbEsVfk5b6Ncuuzo=;\n b=hnzwWpEG1WgK5LtelJYIxmod3sXBCXbeTJq4mHtp5XqwUtHP3nqsmDbv\n OmjJIcCGiksSX6Elery5WbsFkteXjObIRrX2bVQ9sW7aknU3FksyQoHxL\n 2RF6vF3CkLblrLRUqCP1MKTP7Gano44hr6DXysf8b3/fxmyRNbIMBgXCz\n MyBBNhFPhibxSNc+oHQoBbUT4gcUVkbtHzDzSdrFXNej53PBSdXaJAi73\n cAHL8//Fgp/82Jw8sA+5Pi24z3yhGtoaY1vpS6HsJC747SZpZVJbXjyNf\n oOWxmURxdWrm27/LTryceXqEElP2t099Od58UWI2JOaI3wABjXcSId1+o\n A==;" ], "X-CSE-ConnectionGUID": "IBZdUWx4RdSUt8CSv/oQ3w==", "X-CSE-MsgGUID": "Y8tKnTsyQ0uwqLC05bhLJg==", "X-IronPort-AV": "E=Sophos;i=\"6.21,279,1763424000\";\n d=\"scan'208\";a=\"12616449\"", "X-Farcaster-Flow-ID": "6acaa630-3c74-4b85-b879-7e20e6a0d65c", "From": "Eliav Farber <farbere@amazon.com>", "To": "<tudor.ambarus@linaro.org>, <pratyush@kernel.org>, <mwalle@kernel.org>,\n\t<miquel.raynal@bootlin.com>, <richard@nod.at>, <vigneshr@ti.com>,\n\t<linux-mtd@lists.infradead.org>, <linux-kernel@vger.kernel.org>", "CC": "<farbere@amazon.com>", "Subject": "[PATCH 0/4] mtd: spi-nor: winbond: Fix protection handling and enable\n dual/quad reads", "Date": "Sun, 8 Feb 2026 06:19:15 +0000", "Message-ID": "<20260208061919.30498-1-farbere@amazon.com>", "X-Mailer": "git-send-email 2.47.3", "MIME-Version": "1.0", "X-Originating-IP": "[172.19.116.181]", "X-ClientProxiedBy": "EX19D038UWC003.ant.amazon.com (10.13.139.209) To\n EX19D001UWA001.ant.amazon.com (10.13.138.214)", "X-CRM114-Version": "20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 ", "X-CRM114-CacheID": "sfid-20260207_221932_841279_826529C2 ", "X-CRM114-Status": "UNSURE ( 7.08 )", "X-CRM114-Notice": "Please train this message.", "X-Spam-Score": "-9.6 (---------)", "X-Spam-Report": "Spam detection software,\n running on the system \"bombadil.infradead.org\",\n has NOT identified this incoming email as spam. The original\n message has been attached to this so you can view it or label\n similar future email. If you have any questions, see\n the administrator of that system for details.\n Content preview: This series fixes block protection handling for the\n following\n Winbond SPI-NOR devices: - w25q256jwm - w25q256jw - w25q64jvm The devices\n do not correctly describe their Status Register layout and protection\n capabilities\n (locking flags, TB bit, BP bit configuration). As a result,\n the spi-nor core\n rejects protection requests [...]\n Content analysis details: (-9.6 points, 5.0 required)\n pts rule name description\n ---- ----------------------\n --------------------------------------------------\n -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no\n trust\n [52.26.1.71 listed in list.dnswl.org]\n 0.0 RCVD_IN_VALIDITY_CERTIFIED_BLOCKED RBL: ADMINISTRATOR NOTICE: The\n query to Validity was blocked. See\n https://knowledge.validity.com/hc/en-us/articles/20961730681243\n for more information.\n [52.26.1.71 listed in\n sa-trusted.bondedsender.org]\n 0.0 RCVD_IN_VALIDITY_SAFE_BLOCKED RBL: ADMINISTRATOR NOTICE: The query to\n Validity was blocked. See\n https://knowledge.validity.com/hc/en-us/articles/20961730681243\n for more information.\n [52.26.1.71 listed in sa-accredit.habeas.com]\n 0.0 RCVD_IN_VALIDITY_RPBL_BLOCKED RBL: ADMINISTRATOR NOTICE: The query to\n Validity was blocked. See\n https://knowledge.validity.com/hc/en-us/articles/20961730681243\n for more information.\n [52.26.1.71 listed in bl.score.senderscore.com]\n 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record\n -7.5 USER_IN_DEF_SPF_WL From: address is in the default SPF welcome-list\n -0.0 SPF_PASS SPF: sender matches SPF record\n -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from\n author's\n domain\n -0.1 DKIM_VALID Message has at least one valid DKIM or DK\n signature\n 0.1 DKIM_SIGNED Message has a DKIM or DK signature,\n not necessarily valid\n -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from\n envelope-from domain\n -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1%\n [score: 0.0000]\n 0.0 UNPARSEABLE_RELAY Informational: message has unparseable relay\n lines\n -0.0 DKIMWL_WL_HIGH DKIMwl.org - High trust sender", "X-BeenThere": "linux-mtd@lists.infradead.org", "X-Mailman-Version": "2.1.34", "Precedence": "list", "List-Id": "Linux MTD discussion mailing list <linux-mtd.lists.infradead.org>", "List-Unsubscribe": "<http://lists.infradead.org/mailman/options/linux-mtd>,\n <mailto:linux-mtd-request@lists.infradead.org?subject=unsubscribe>", "List-Archive": "<http://lists.infradead.org/pipermail/linux-mtd/>", "List-Post": "<mailto:linux-mtd@lists.infradead.org>", "List-Help": "<mailto:linux-mtd-request@lists.infradead.org?subject=help>", "List-Subscribe": "<http://lists.infradead.org/mailman/listinfo/linux-mtd>,\n <mailto:linux-mtd-request@lists.infradead.org?subject=subscribe>", "Content-Type": "text/plain; charset=\"us-ascii\"", "Content-Transfer-Encoding": "7bit", "Sender": "\"linux-mtd\" <linux-mtd-bounces@lists.infradead.org>", "Errors-To": "linux-mtd-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org" }, "content": "This series fixes block protection handling for the following Winbond\nSPI-NOR devices:\n - w25q256jwm\n - w25q256jw\n - w25q64jvm\n\nThe devices do not correctly describe their Status Register layout and\nprotection capabilities (locking flags, TB bit, BP bit configuration).\nAs a result, the spi-nor core rejects protection requests and locking\noperations fail with -EINVAL, e.g.:\n\n flash_lock -l /dev/mtd29\n flash_lock: error!: could not lock device: /dev/mtd29\n error 22 (Invalid argument)\n\nUpdate the device flags to match the actual hardware behavior so that\nlocking and unlocking regions work correctly.\n\nAdditionally, enable Dual and Quad read support for w25q64jvm when SFDP\nis not used.\n\nAll changes were validated using flash_lock on the affected devices.\n\nEliav Farber (4):\n mtd: spi-nor: winbond: Fix locking support for w25q256jwm\n mtd: spi-nor: winbond: Fix locking support for w25q256jw\n mtd: spi-nor: winbond: Fix locking support for w25q64jvm\n mtd: spi-nor: winbond: Enable Dual and Quad support for w25q64jvm\n\n drivers/mtd/spi-nor/winbond.c | 6 ++++--\n 1 file changed, 4 insertions(+), 2 deletions(-)" }