From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx07-00178001.pphosted.com (mx08-00178001.pphosted.com [91.207.212.93]) (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 E4AA32E8897; Wed, 23 Jul 2025 13:09:40 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=91.207.212.93 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1753276182; cv=none; b=cPy56Txz4tjHGCsQodpRb1kcp/77MUbgzZsywmm8BSg+7clOixF/zCL/d64MCtvrCfqaWimG9v0lpwhg3SxO+OBLXFBpxB0gSv+zGseNgEhPXsvZP61lP/i3cykmRDNlBn6kwGC8mjFU38IBheEdXg1W1x5g9g3pnAD2F/5JTeo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1753276182; c=relaxed/simple; bh=GpUvhJh1CksJc5XwesN3iux5G5ewRDbAuRXtWU52rJo=; h=From:Date:Subject:MIME-Version:Content-Type:Message-ID:References: In-Reply-To:To:CC; b=EOjJZRIVFZvs4Uztjl7tZPaaqg0iG7pDvsWJg3gV4/cIHkiLO4hA++2p5ltsAdyNFnl+zUkTHftKN2/BjWJxwv0gJCJRg0uYxKt3N0xkGi4+a49/qzyfFtrlQy/2pfCMCIsmMD1lK9KuVZoiautSs4OZRs6pk9K9TYQns/hD8bs= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=foss.st.com; spf=pass smtp.mailfrom=foss.st.com; dkim=pass (2048-bit key) header.d=foss.st.com header.i=@foss.st.com header.b=RNUdW3xL; arc=none smtp.client-ip=91.207.212.93 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=foss.st.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=foss.st.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=foss.st.com header.i=@foss.st.com header.b="RNUdW3xL" Received: from pps.filterd (m0046661.ppops.net [127.0.0.1]) by mx07-00178001.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 56NCYuVC013793; Wed, 23 Jul 2025 15:09:26 +0200 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=foss.st.com; h= cc:content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to; s=selector1; bh= a7LWlOLtHEVsw7QyER6FfjOKmrZdqB2/hdIwi6Hbs9U=; b=RNUdW3xLRK+T7n4N OsclMBk/a2oLLihjjH3s2svJ3bjJSNQWVdQk1N2MLkS/uo+rXIAKnERQFmubMzQK q2WjUUuHnOLQekjWuOCROU1DJAlbZ/paaM5pyVH4PwpfEge8OvXS1NT74Y4ucyr2 q3DYYrei6xRhThGtEqUjRUHflytfqZd3Q/b3tTra38SDeUXKVbTnzBpR7+SGrR2S Zf3IQoJgMzbrNatpz9HddWcGWlg/3R0BF5yKChYG3bqpumdUKQjawyDcyKzPbv3+ TYYpXtwJwyZ2NWszogiMbGPaMdHa7fU96s1L4vQSm+Tgdr5hze4L6XYkv5HyqZNF J8/8UA== Received: from beta.dmz-ap.st.com (beta.dmz-ap.st.com [138.198.100.35]) by mx07-00178001.pphosted.com (PPS) with ESMTPS id 48028gbkkt-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 23 Jul 2025 15:09:26 +0200 (MEST) Received: from euls16034.sgp.st.com (euls16034.sgp.st.com [10.75.44.20]) by beta.dmz-ap.st.com (STMicroelectronics) with ESMTP id 555834004B; Wed, 23 Jul 2025 15:07:33 +0200 (CEST) Received: from Webmail-eu.st.com (shfdag1node2.st.com [10.75.129.70]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id 75A83799890; Wed, 23 Jul 2025 15:06:07 +0200 (CEST) Received: from localhost (10.48.86.185) by SHFDAG1NODE2.st.com (10.75.129.70) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.39; Wed, 23 Jul 2025 15:06:07 +0200 From: =?utf-8?q?Cl=C3=A9ment_Le_Goffic?= Date: Wed, 23 Jul 2025 15:05:50 +0200 Subject: [PATCH v4 06/20] dt-bindings: memory: introduce DDR4 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: 8bit Message-ID: <20250723-ddrperfm-upstream-v4-6-1aa53ca319f4@foss.st.com> References: <20250723-ddrperfm-upstream-v4-0-1aa53ca319f4@foss.st.com> In-Reply-To: <20250723-ddrperfm-upstream-v4-0-1aa53ca319f4@foss.st.com> To: Will Deacon , Mark Rutland , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Maxime Coquelin , Alexandre Torgue , Philipp Zabel , Jonathan Corbet , Gatien Chevallier , Michael Turquette , Stephen Boyd , Gabriel Fernandez , Krzysztof Kozlowski , Le Goffic , Julius Werner CC: , , , , , , , =?utf-8?q?Cl=C3=A9ment_Le_Goffic?= X-Mailer: b4 0.15-dev-8018a X-ClientProxiedBy: SHFCAS1NODE2.st.com (10.75.129.73) To SHFDAG1NODE2.st.com (10.75.129.70) X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1099,Hydra:6.1.9,FMLib:17.12.80.40 definitions=2025-07-23_02,2025-07-22_01,2025-03-28_01 Introduce JEDEC compliant DDR bindings, that use new memory-props binding. Signed-off-by: Clément Le Goffic --- .../memory-controllers/ddr/jedec,ddr4.yaml | 34 ++++++++++++++++++++++ 1 file changed, 34 insertions(+) diff --git a/Documentation/devicetree/bindings/memory-controllers/ddr/jedec,ddr4.yaml b/Documentation/devicetree/bindings/memory-controllers/ddr/jedec,ddr4.yaml new file mode 100644 index 000000000000..f457066a2f8b --- /dev/null +++ b/Documentation/devicetree/bindings/memory-controllers/ddr/jedec,ddr4.yaml @@ -0,0 +1,34 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/memory-controllers/ddr/jedec,ddr4.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: DDR3 SDRAM compliant to JEDEC JESD79-4D + +maintainers: + - Krzysztof Kozlowski + +allOf: + - $ref: jedec,sdram-props.yaml# + +properties: + compatible: + items: + - pattern: "^ddr4-[0-9a-f]{2},[0-9a-f]{1}$" + - const: jedec,ddr4 + +required: + - compatible + - density + - io-width + +unevaluatedProperties: false + +examples: + - | + ddr { + compatible = "ddr4-ff,f", "jedec,ddr4"; + density = <8192>; + io-width = <8>; + }; -- 2.43.0