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[2a02:8440:7149:a758:f461:9bc4:1c75:ebc1]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-46e56f3dcacsm48573735e9.2.2025.09.30.01.46.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 30 Sep 2025 01:46:52 -0700 (PDT) From: =?utf-8?q?Cl=C3=A9ment_Le_Goffic?= Date: Tue, 30 Sep 2025 10:46:45 +0200 Subject: [PATCH v8 2/7] dt-bindings: memory: introduce DDR4 Precedence: bulk X-Mailing-List: devicetree@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: <20250930-b4-ddr-bindings-v8-2-fe4d8c015a50@gmail.com> References: <20250930-b4-ddr-bindings-v8-0-fe4d8c015a50@gmail.com> In-Reply-To: <20250930-b4-ddr-bindings-v8-0-fe4d8c015a50@gmail.com> To: Krzysztof Kozlowski , Rob Herring , Conor Dooley , Julius Werner , Krzysztof Kozlowski , Maxime Coquelin , Alexandre Torgue Cc: linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, =?utf-8?q?Cl=C3=A9ment_Le_Goffic?= , =?utf-8?q?Cl=C3=A9ment_Le_Goffic?= X-Mailer: b4 0.15-dev-0dae4 From: Clément Le Goffic Introduce JEDEC compliant DDR bindings, that use new memory-props binding. Signed-off-by: Clément Le Goffic 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..a2eb6f63c0ce --- /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: DDR4 SDRAM compliant to JEDEC JESD79-4D + +maintainers: + - Krzysztof Kozlowski + +allOf: + - $ref: jedec,sdram-props.yaml# + +properties: + compatible: + items: + - pattern: "^ddr4-[0-9a-f]{4},[a-z]{1,20},[0-9a-f]{2}$" + - const: jedec,ddr4 + +required: + - compatible + - density + - io-width + +unevaluatedProperties: false + +examples: + - | + ddr { + compatible = "ddr4-00ff,azaz,ff", "jedec,ddr4"; + density = <8192>; + io-width = <8>; + }; -- 2.43.0