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Wed, 05 Aug 2026 12:04:13 -0700 (PDT) Received: from ryzen.lan ([2601:644:8000:7a86::e34]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-84f2e4d3926sm1309419b3a.28.2026.08.05.12.04.11 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 05 Aug 2026 12:04:12 -0700 (PDT) From: Rosen Penev To: devicetree@vger.kernel.org Cc: Florian Fainelli , Hauke Mehrtens , =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= , Broadcom internal kernel review list , Rob Herring , Krzysztof Kozlowski , Conor Dooley , linux-arm-kernel@lists.infradead.org (moderated list:BROADCOM BCM5301X ARM ARCHITECTURE), linux-kernel@vger.kernel.org (open list) Subject: [PATCH] ARM: dts: BCM5301X: R7000: set WAN MAC from nvram Date: Wed, 5 Aug 2026 12:04:10 -0700 Message-ID: <20260805190410.7335-1-rosenp@gmail.com> X-Mailer: git-send-email 2.55.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260805_120414_085181_DF82D927 X-CRM114-Status: GOOD ( 10.02 ) 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 The WAN MAC is offset by 1. Set in dts to avoid having to handle this in userspace. nvram size found from a random bootlog online. Signed-off-by: Rosen Penev --- .../dts/broadcom/bcm4709-netgear-r7000.dts | 55 +++++++++++++++++++ 1 file changed, 55 insertions(+) diff --git a/arch/arm/boot/dts/broadcom/bcm4709-netgear-r7000.dts b/arch/arm/boot/dts/broadcom/bcm4709-netgear-r7000.dts index 24ba8f8f9bf3..66ddea2e91c4 100644 --- a/arch/arm/boot/dts/broadcom/bcm4709-netgear-r7000.dts +++ b/arch/arm/boot/dts/broadcom/bcm4709-netgear-r7000.dts @@ -25,6 +25,15 @@ memory@0 { <0x88000000 0x08000000>; }; + nvram@1c080000 { + compatible = "brcm,nvram"; + reg = <0x1c080000 0x180000>; + + et0macaddr: et0macaddr { + #nvmem-cell-cells = <1>; + }; + }; + leds { compatible = "gpio-leds"; @@ -104,3 +113,49 @@ &usb3 { &usb3_phy { status = "okay"; }; + +&gmac0 { + nvmem-cells = <&et0macaddr 0>; + nvmem-cell-names = "mac-address"; +}; + +&srab { + status = "okay"; + + ports { + port@0 { + label = "wan"; + + nvmem-cells = <&et0macaddr 1>; + nvmem-cell-names = "mac-address"; + }; + + port@1 { + label = "lan1"; + }; + + port@2 { + label = "lan2"; + }; + + port@3 { + label = "lan3"; + }; + + port@4 { + label = "lan4"; + }; + + port@5 { + label = "cpu"; + }; + + port@7 { + status = "disabled"; + }; + + port@8 { + status = "disabled"; + }; + }; +}; -- 2.55.0