From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=68.232.154.123 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1794398167; b=uBMrkmh95LxsKn6uC2bb2dd8RMxTND3f74NLpBX9ip8wZ5uiWHST4S24iPtlZXQI+7kC tvmKE+oFISWZEraAh+dK+KAEv0Q0xn7AwINo31jlbFEHkg3rBXkW+gMgHi7w2h6EC4DVe BQEnmiTtnsY9z+yWTDnrz+jKnBOafRUwF/OUjYPiuRXO6kTMF7baa2ARbmAK4JIaSugEb m//F5ofJV18et8peSePasWBpneQIdJvJHry72BwCXcWrXLfSEvDBFDqvKMltb9S+JFvqj sKlQve+hUqpnrAs/gEQoav6OdkZ0oHanNdnRrIsqfs0r7K24SaM9GjhKKkA+Cn4mCzA== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1794398167; h=DMARC-Filter:DKIM-Signature:X-CSE-ConnectionGUID:X-CSE-MsgGUID: X-IronPort-AV:X-Amp-Result:Received:Received:Received:From:To:CC: Subject:Date:Message-ID:X-Mailer:In-Reply-To:References:MIME-Version: Content-Transfer-Encoding:Content-Type; bh=VBTF2W9pPzjw10zOzS7dHTxuRGxLvSu4sJjvOS08hm8=; b=3fWGKR0SQzZFMkf/EYnZ+aAxtnVRWjpSmadTSPe0l5pbmE8ZgEv1i07cr+VWG77yF0V2 imbO7hQIKDTgWWdWujfYmHiEhKaThF1ykFqUlg0riv9hJil76DweU5WPJkWrFZMogeO/k uPDL1x6xmOqrHt9mJ3ZMZR+MX79YIPiBYZrWmmZxzTzn35w/Vifcd2HDPNFKidQ0xKHPm YZKrrftRGUTOr/Mnx8x2VU2vuLqPItWL9WErKLMKQNCrojPlfD+/DGyWrF7UJXQh0qU1k UwbuQ+SS7ITf0tnqJC6q4bWhVrp4khIl88tRXW7ZHQJ4gsPQcbN8xreZb9pO792SH+A== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass header.from=microchip.com; spf=pass smtp.mailfrom=microchip.com; dkim=pass header.d=microchip.com header.i=@microchip.com header.a=rsa-sha256 header.s=mchp header.b=aHMpbT1o; arc=none smtp.remote-ip=68.232.154.123 Received: from esa.microchip.iphmx.com (esa.microchip.iphmx.com [68.232.154.123]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C905D606A33C; Wed, 11 Nov 2026 11:56:06 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org C905D606A33C Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=microchip.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=microchip.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=microchip.com header.i=@microchip.com header.a=rsa-sha256 header.s=mchp header.b=aHMpbT1o DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1794398166; x=1825934166; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=ZbNAFzSIw3R2cm7Wm2v5oyHJUBSuXKlXSqen3A0swWY=; b=aHMpbT1oivdFJhUgu5/QQq4764JNOmIpKGiANqTL8GCsUREldO5Ezjuy PH7e+x8o6FwAypw1R85ffzmIXR7cIkiqJguljkgCAXxjzr9fnK8dG+Dej dU21zEWQaVTwT1yAqzBgCZb4hKGyy9/4R25YxVL/woiFJSlA3ES/xhf5B rspS4nYzhj28XAg7109gq19cvAqCfgzh2q9seQCgq8xMLEdg+dvyxXBM/ NC2VwUFIr6GnbLnuKOKOMTye6X6eXxIUioj4icYPMTY2v4mBZo54+J8Gz ppw5qoMIaOh1aB9EkFpgipZOHGRMate7XgOMG72sre5NTnGvyqcGVfa/B Q==; X-CSE-ConnectionGUID: T894UqdwStqWKRR5NpsBxg== X-CSE-MsgGUID: fwgcWE15SYSr+8otYHSWug== X-IronPort-AV: E=Sophos;i="6.27,207,1787036400"; d="scan'208";a="65385193" X-Amp-Result: SKIPPED(no attachment in message) Received: from unknown (HELO email.microchip.com) ([170.129.1.10]) by esa4.microchip.iphmx.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Nov 2026 04:56:06 -0700 Received: from chn-vm-ex02.mchp-main.com (10.10.87.72) by chn-vm-ex4.mchp-main.com (10.10.87.33) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.2.2562.56; Wed, 11 Nov 2026 04:56:05 -0700 Received: from che-ll-i67131.microchip.com (10.10.85.11) by chn-vm-ex02.mchp-main.com (10.10.85.144) with Microsoft SMTP Server id 15.1.2507.58 via Frontend Transport; Wed, 11 Nov 2026 04:55:56 -0700 From: Manikandan Muralidharan To: , , , , , , , , , , , , , , , , , , , , , , , , , , , CC: Subject: [PATCH v10 1/8] dt-bindings: mtd: jedec,spi-nor: allow the SFDP to be exposed via NVMEM Date: Wed, 11 Nov 2026 17:25:33 +0530 Message-ID: X-Mailer: git-send-email 2.43.0 In-Reply-To: References: X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain Add an optional "sfdp" child node (compatible "jedec,sfdp") that describes the SFDP as a read-only NVMEM provider via nvmem.yaml, so its contents (e.g. a vendor EUI-48/EUI-64) can be read through NVMEM cells. Reviewed-by: Linus Walleij Reviewed-by: Rob Herring (Arm) Signed-off-by: Manikandan Muralidharan --- .../bindings/mtd/jedec,spi-nor.yaml | 20 +++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/Documentation/devicetree/bindings/mtd/jedec,spi-nor.yaml b/Documentation/devicetree/bindings/mtd/jedec,spi-nor.yaml index 587af4968255..d7e659912b4a 100644 --- a/Documentation/devicetree/bindings/mtd/jedec,spi-nor.yaml +++ b/Documentation/devicetree/bindings/mtd/jedec,spi-nor.yaml @@ -103,6 +103,22 @@ properties: spi-cpol: true spi-cpha: true + sfdp: + $ref: /schemas/nvmem/nvmem.yaml# + unevaluatedProperties: false + description: + The Serial Flash Discoverable Parameters (SFDP) tables exposed as a + read-only NVMEM device. This allows standard or vendor-specific SFDP + data (for example a factory-programmed EUI-48/EUI-64 identifier) to be + consumed through NVMEM cells. + + properties: + compatible: + const: jedec,sfdp + + required: + - compatible + dependencies: spi-cpol: [ spi-cpha ] spi-cpha: [ spi-cpol ] @@ -122,6 +138,10 @@ examples: spi-max-frequency = <40000000>; m25p,fast-read; reset-gpios = <&gpio 12 GPIO_ACTIVE_LOW>; + + sfdp { + compatible = "jedec,sfdp"; + }; }; }; ... -- 2.43.0