From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from esa.microchip.iphmx.com (esa.microchip.iphmx.com [68.232.153.233]) (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 45DC23D812D; Tue, 21 Jul 2026 05:29:33 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=68.232.153.233 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784611774; cv=none; b=omqE9cOHR1fvw8LGYd+0J5jjDAC28LHQP/5duh/Uvku58qKQ8bqq9K/X8sswN2hzOa2JG2gzlF6sSAsUROfSqNOsYYFN++Ak7Un4bSr3dX2tggRLRbmMnZTMkDooWipSngfY/BcoIKidVSKiggFWo/3/RxGpX1lyJmeuZjY09NU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784611774; c=relaxed/simple; bh=2+B4vL0Lm/cbnMEOwb9Ux7Y4yhkEvIsIu+j+RbEs7Ic=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=tDO+zydWO6vQ0XcWGM9RGm/7xh86B+ZTX6HIlGkO8Sy5gjXzzAIh/ecSzZfJDGRHutlxMJTyT+z0bnB6xHPO4hVLoeCO7qhIhdsP3dYhe0Wx81YFB74pVHjxveDF9v8NAkiSW0IUFR1Xz1uyKGsbwKMvAoA+1rCSyZTiBsEW3SM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=microchip.com; spf=pass smtp.mailfrom=microchip.com; dkim=pass (2048-bit key) header.d=microchip.com header.i=@microchip.com header.b=UMOEBSkb; arc=none smtp.client-ip=68.232.153.233 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.b="UMOEBSkb" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1784611773; x=1816147773; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=2+B4vL0Lm/cbnMEOwb9Ux7Y4yhkEvIsIu+j+RbEs7Ic=; b=UMOEBSkbjlTcGpeDYK+Vjrzx4uWAZIaQJB+uIZwVIge7mf5oiVKjC/HZ XlEL1i2FRIx9PmXrOOwBzvKW1cI61BWEyTYwfwD6ppXrI4YC5SPw8D9wV UvMAQc1XEr2FUDbhYhkPApVMJrZ5FiDsDylThxqnznWNke6egt/6N7uYM jsaAhmc3RF9LXSLW+B0FByZVxEqpK8Oo5xLMNlQrBUhnZzc9RsyFpNPLV C2JpwS7wggYtLrliAGT47LYc7c1Q7qQAegHRZZBQJ04xceOaZtWKotpAJ OqhUj45hojjMAinxu5XhTQzsNxpri/R30qZREOw8D6sSwmG6qF6ofz1I0 g==; X-CSE-ConnectionGUID: 5DN3Cy/FTAazffb+4AroTg== X-CSE-MsgGUID: 2MbCVFiISQyHiHbPvqhbDg== X-IronPort-AV: E=Sophos;i="6.25,176,1779174000"; d="scan'208";a="60925929" X-Amp-Result: SKIPPED(no attachment in message) Received: from unknown (HELO email.microchip.com) ([170.129.1.10]) by esa3.microchip.iphmx.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 20 Jul 2026 22:29:32 -0700 Received: from chn-vm-ex03.mchp-main.com (10.10.87.152) by chn-vm-ex3.mchp-main.com (10.10.87.32) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.2.2562.43; Mon, 20 Jul 2026 22:29:31 -0700 Received: from che-ll-i67131.microchip.com (10.10.85.11) by chn-vm-ex03.mchp-main.com (10.10.85.151) with Microsoft SMTP Server id 15.1.2507.58 via Frontend Transport; Mon, 20 Jul 2026 22:29:23 -0700 From: Manikandan Muralidharan To: , , , , , , , , , , , , , , , , , , , , , , CC: Manikandan Muralidharan Subject: [PATCH v5 1/7] dt-bindings: mtd: jedec,spi-nor: allow the SFDP to be exposed via NVMEM Date: Tue, 21 Jul 2026 10:58:53 +0530 Message-ID: <20260721052859.171341-2-manikandan.m@microchip.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260721052859.171341-1-manikandan.m@microchip.com> References: <20260721052859.171341-1-manikandan.m@microchip.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: 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. Signed-off-by: Manikandan Muralidharan Reviewed-by: Linus Walleij --- .../devicetree/bindings/mtd/jedec,spi-nor.yaml | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/Documentation/devicetree/bindings/mtd/jedec,spi-nor.yaml b/Documentation/devicetree/bindings/mtd/jedec,spi-nor.yaml index 587af4968255..98fd954598ab 100644 --- a/Documentation/devicetree/bindings/mtd/jedec,spi-nor.yaml +++ b/Documentation/devicetree/bindings/mtd/jedec,spi-nor.yaml @@ -103,6 +103,20 @@ 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 +136,10 @@ examples: spi-max-frequency = <40000000>; m25p,fast-read; reset-gpios = <&gpio 12 GPIO_ACTIVE_LOW>; + + sfdp { + compatible = "jedec,sfdp"; + }; }; }; ... -- 2.43.0