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Sat, 25 Jul 2026 14:56:38 -0700 (PDT) Received: from ryzen.lan ([2601:644:8000:7a86::e35]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-38f0583bcd0sm2267757a91.1.2026.07.25.14.56.35 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 25 Jul 2026 14:56:36 -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: R8000 add NVRAM with MAC address for WAN port Date: Sat, 25 Jul 2026 14:56:34 -0700 Message-ID: <20260725215634.9181-1-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-20260725_145639_912742_9E0C3E6B X-CRM114-Status: GOOD ( 10.60 ) 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 R8000 stores the WAN MAC address at a fixed offset in NVRAM. Define the NVRAM region and attach nvmem-cells to the WAN port so the MAC is assigned automatically by the DSA framework. Assisted-by: opencode:big-pickle Signed-off-by: Rosen Penev --- arch/arm/boot/dts/broadcom/bcm4709-netgear-r8000.dts | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/arch/arm/boot/dts/broadcom/bcm4709-netgear-r8000.dts b/arch/arm/boot/dts/broadcom/bcm4709-netgear-r8000.dts index e85693fba16a..a4b135d37659 100644 --- a/arch/arm/boot/dts/broadcom/bcm4709-netgear-r8000.dts +++ b/arch/arm/boot/dts/broadcom/bcm4709-netgear-r8000.dts @@ -36,6 +36,15 @@ memory@0 { <0x88000000 0x08000000>; }; + nvram@1c080000 { + compatible = "brcm,nvram"; + reg = <0x1c080000 0x180000>; + + et2macaddr: et2macaddr { + #nvmem-cell-cells = <1>; + }; + }; + leds { compatible = "gpio-leds"; @@ -211,6 +220,9 @@ port@3 { port@4 { label = "wan"; + + nvmem-cells = <&et2macaddr 1>; + nvmem-cell-names = "mac-address"; }; port@5 { -- 2.55.0