From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 352E0C43458 for ; Tue, 30 Jun 2026 09:25:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Type: Content-Transfer-Encoding:MIME-Version:References:In-Reply-To:Message-ID:Date :Subject:CC:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=og0xhQ5yq+A5twRjic/8o//MaUeLO8Az/ztOrAeVamw=; b=fLf2mdLWIp18qqWgIeg/yNMLJW VqJ1Ss17MwZnzG097rpBW2zgmUsYoLt6IGWH8LBt7jCIEg+4Aq9YOXezWC7oXWLmXw0GbWS7lnTfv RdzePfjdOmAOUNllhlYkLDlA0cmbyCP75McYxgRgws33pBcj7ZldqfOKTC7d4B85St7+m9AF+0yWl J9d1KO3s30LeE7S3bqmMMo3ohTv4doly0HfsywEKYG5FfDAmUR5QAlfo+J/Rl6h8X0ffPjciJSds3 BvvkyR1p7tza60aBA71h6UVjatC+/z3V2R+JC6BX3znrr44ZrnN1si1QhJmeqmRB0sa+HMl02TMLv n7TkBv2A==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1weUiB-0000000GOXX-1tXw; Tue, 30 Jun 2026 09:24:59 +0000 Received: from esa.microchip.iphmx.com ([68.232.154.123]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1weUhu-0000000GOOm-3ICj; Tue, 30 Jun 2026 09:24:43 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1782811482; x=1814347482; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=fBjF5q8rMNKv9vykdAVJd2NPBRLDCwvihjU5T1PBix4=; b=Y4uO3kpM0Bi1+RWUzONTr9omr/ZvfRW+0zULctlI0BwSgT1nshfMVCFL B52p8FaOy1QRQszeZ05K0iIUiPwKqskKpWMSb0GCjy6PFw6j3V7o8sJ7i WF2PEW1AkehzrHYzG3zUmd6ul2yEic6sOhXA3Ghpl+ypfZ8mRdS4NQY9N RKvWI5S9RekLFA16XNSTRvlZ7NrPKwJdRCANCM8hHImf3ZPw6E4ovtOS+ I3PxaczMqN5Hw8VbuA03Kf7weEYbYsxMQ8hNeIyQLtboJWNcrlNHGRblw mpFPWC3vkXYldhUZzzLuRasnfy/bkfJMjmQmq9RSmPrjMkRYfFZiBQt9C A==; X-CSE-ConnectionGUID: y2UMO1geT8GzPovUCZd3nA== X-CSE-MsgGUID: TlvWtXBrQO6e5+zhhZ/sog== X-IronPort-AV: E=Sophos;i="6.24,233,1774335600"; d="scan'208";a="59032186" 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-AES128-GCM-SHA256; 30 Jun 2026 02:24:40 -0700 Received: from chn-vm-ex02.mchp-main.com (10.10.87.72) by chn-vm-ex02.mchp-main.com (10.10.87.72) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.58; Tue, 30 Jun 2026 02:24:40 -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; Tue, 30 Jun 2026 02:24:32 -0700 From: Manikandan Muralidharan To: , , , , , , , , , , , , , , , , , , , , , , CC: Manikandan Muralidharan Subject: [PATCH v4 1/7] dt-bindings: mtd: jedec,spi-nor: allow the SFDP to be exposed via NVMEM Date: Tue, 30 Jun 2026 14:54:00 +0530 Message-ID: <20260630092406.150587-2-manikandan.m@microchip.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260630092406.150587-1-manikandan.m@microchip.com> References: <20260630092406.150587-1-manikandan.m@microchip.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260630_022442_894998_661A672D X-CRM114-Status: UNSURE ( 8.23 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org 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 --- .../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