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[194.187.74.233]) by smtp.gmail.com with ESMTPSA id y5-20020a056402358500b00482e0c55e2bsm2248136edc.93.2023.01.27.04.57.25 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 27 Jan 2023 04:57:26 -0800 (PST) From: =?utf-8?b?UmFmYcWCIE1pxYJlY2tp?= To: Srinivas Kandagatla , Rob Herring , Krzysztof Kozlowski Cc: Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , NXP Linux Team , Miquel Raynal , Michael Walle , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, u-boot@lists.denx.de, =?utf-8?b?UmFmYcWCIE1p?= =?utf-8?b?xYJlY2tp?= , Rob Herring Subject: [PATCH V3 5/6] dt-bindings: nvmem: u-boot,env: add MAC's #nvmem-cell-cells Date: Fri, 27 Jan 2023 13:57:08 +0100 Message-Id: <20230127125709.32191-5-zajec5@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230127125709.32191-1-zajec5@gmail.com> References: <20230127125709.32191-1-zajec5@gmail.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230127_045731_753584_855859AB X-CRM114-Status: GOOD ( 12.14 ) 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 From: Rafał Miłecki U-Boot's "ethaddr" environment variable is very often used to store *base* MAC address. It's used as a base for calculating addresses for multiple interfaces. It's done by adding proper values. Actual offsets are picked by manufacturers and vary across devices. Signed-off-by: Rafał Miłecki Reviewed-by: Rob Herring --- .../devicetree/bindings/nvmem/layouts/u-boot,env.yaml | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/nvmem/layouts/u-boot,env.yaml b/Documentation/devicetree/bindings/nvmem/layouts/u-boot,env.yaml index fb273b174fe7..dbff702f2e5d 100644 --- a/Documentation/devicetree/bindings/nvmem/layouts/u-boot,env.yaml +++ b/Documentation/devicetree/bindings/nvmem/layouts/u-boot,env.yaml @@ -45,7 +45,11 @@ properties: ethaddr: type: object - description: Ethernet interface's MAC address + description: Ethernet interfaces base MAC address. + properties: + "#nvmem-cell-cells": + description: The first argument is a MAC address offset. + const: 1 additionalProperties: false @@ -69,6 +73,7 @@ examples: compatible = "u-boot,env"; mac: ethaddr { + #nvmem-cell-cells = <1>; }; }; };