From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-wm1-f41.google.com (mail-wm1-f41.google.com [209.85.128.41]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 0DFF244C665 for ; Wed, 7 Oct 2026 08:26:35 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.41 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791361604; cv=none; b=WITQm9iUI0Rg97duppEK9nY9L4Y6BmuNw4AgJuWo1gavve1S9gaPSTIF+MFzsFO3S16flIrTpiBs6HJbQAvPYeCBix/FBl+APzggeNDOg774hW03x4VXe9wKSEH5m08kMx17LT3f/gl9ep5evknMCDxtWahzyjo+fBnwy4YCasU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791361604; c=relaxed/simple; bh=c7GRPa1MRnZgahEhAkMuYW/f6BU8clPM4mNP2WXx2ww=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=WofhJ51FAmIqcmRM8TLfnWBuxg/ytZa7zmRVet1BppKFPvoQsirCqYENoKy05T/EglTjhWnbOCGiwsN4pwJSej95DCTanlHHweI2c+ipUnTal940l2jsPO4SsV4/qwdvJELIRIubceUgjgxd7z0BO+Uiblocv+4zZVZtt4Jns80= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.com; spf=pass smtp.mailfrom=gmail.com; arc=none smtp.client-ip=209.85.128.41 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Received: by mail-wm1-f41.google.com with SMTP id 5b1f17b1804b1-4a166199820so9463055e9.1 for ; Wed, 07 Oct 2026 01:26:35 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20260707; t=1791361594; x=1791966394; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to:content-type; bh=aKKIB8jplVEe3d7I5HpiWgRDARvx1E69zSOwXtBJM+g=; b=gCnUHtZ0vH0jL90A/dpU8bYw0ZHQdm950ctkVXCOD7dGwiFXjQD2Mbwt7YPGlaoKDi KnBKdkpc/MkQ/SxxDpucyU2Dj4ph/2q3QjUSznegeyJOf0x4j0DKwKin7vk1LIXh+E3G Du2L0DhODRTGSdkiKAhlaEGcJoMMxNW3mbDRVRL9KMtX+i5T1+xe6xmhJN9NVzLRVVwN 1xc3crwZJHni2168EuNtEHSp3XGc3M80kWPa6n6tF6/GNURWSeImIjx3/pibFqDbP7RU ZtPrxO9xf31ZlvutGzCckNaFX2syNZsvoI+j0WKs12Ly0FREjpLdPfyYzQWBBJHxjWaH TKMg== X-Gm-Message-State: AFuF++m25DobYD4Wxka65vHjJn67Wcsj2faSgUjSZw4ltyh3uMcj+tC5 yOVvvDkUiVKFLzh108oghigB9K4jPnPWILbVJruSFMzT7UxMG9mCXslu X-Gm-Gg: AYBFou37s5upnagHyBzGYQaIWp2LhMjIlQJuSjH4wQdAEU1eiL1RialtFgZ/lFfXAAu 7C5tYgnrHA8vk1xbmFcJ/+Jz2XcUifSSozmsrhaD+Ocl7v0mg3MQ+8vUl/n9Wf46odr9hzCk3xT LtGQgE520MgV/b2IZ8YGBjFExsuBAj/1XueP1vHPkrPgrxYqRT+XDkYJ7Yh4MMGTcw4+iQIh021 4Rr1Xg/jv3n2EklBgsHTe9G1VOWJ+tmyL/GHsBM43q4kLt+XkeFGYFDJ4bBQjn9X07Owks/Sgdy eqIEPVM2fu1ZIvlJSIavqnLxBzD4pmy6ZK6c00HlOf+RshWsksaq5DuT2EIs3imDRMToBLBPM14 3FIi1B9CHqec7IvBom+2+XpVvRMP4JnVmKY6gXwu2avhgsXbClN3hHA1rZf60O+YOfM9H+ISbSr 0LfDAuEVXcSaVlY95tE1kZbZqiQBQ5T9pUsPTSKCRKzmrm+bD0SOLJN6q0O8LTteuywKmS2wjmB IHeO7mlSO4btCVFN308fbk1SMU65FK5hqg= X-Received: by 2002:a05:600c:890b:b0:4a1:7e26:9a5a with SMTP id 5b1f17b1804b1-4a17e269ab5mr38619595e9.15.1791361594101; Wed, 07 Oct 2026 01:26:34 -0700 (PDT) Received: from threads.localdomain ([84.70.176.222]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-48c71d3b502sm4251370f8f.52.2026.10.07.01.26.33 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 07 Oct 2026 01:26:33 -0700 (PDT) From: Lucas Tanure To: xianwei.zhao@amlogic.com, Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Neil Armstrong , Kevin Hilman , Jerome Brunet , Martin Blumenstingl , Maxime Chevallier , Maxime Coquelin , Alexandre Torgue Cc: netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-amlogic@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [RFC PATCH v2 6/7] arm64: dts: amlogic: t7: add the ethernet controller Date: Wed, 7 Oct 2026 09:26:26 +0100 Message-ID: <20261007082627.63807-7-tanure@linux.com> X-Mailer: git-send-email 2.56.0 In-Reply-To: <20261007082627.63807-1-tanure@linux.com> References: <20261007082627.63807-1-tanure@linux.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit The SoC has a Synopsys gigabit MAC, a block of glue registers that selects the interface type and trims the clock timing, and a multiplexer that points the management bus at the on-chip 100M PHY or the external pins. None of it was described, so no board could use its ethernet port. The controller reaches memory through a pipeline stage with a gate of its own. Nothing else claims that gate, so it would be switched off as unused and leave the port unable to finish a transfer. The on-chip PHY is described as on the G12A. No board in tree uses it, so that path is untested. The controller is left disabled for boards to enable. Assisted-by: LLM Reviewed-by: Neil Armstrong Signed-off-by: Lucas Tanure --- arch/arm64/boot/dts/amlogic/amlogic-t7.dtsi | 57 +++++++++++++++++++++ 1 file changed, 57 insertions(+) diff --git a/arch/arm64/boot/dts/amlogic/amlogic-t7.dtsi b/arch/arm64/boot/dts/amlogic/amlogic-t7.dtsi index 7bd53ec16607..140f1836f3dd 100644 --- a/arch/arm64/boot/dts/amlogic/amlogic-t7.dtsi +++ b/arch/arm64/boot/dts/amlogic/amlogic-t7.dtsi @@ -250,6 +250,31 @@ gic: interrupt-controller@fff01000 { interrupts = ; }; + ethmac: ethernet@fdc00000 { + compatible = "amlogic,t7-dwmac", + "snps,dwmac-5.10a", + "snps,dwmac"; + reg = <0x0 0xfdc00000 0x0 0x10000>, + <0x0 0xfe024000 0x0 0x8>; + interrupts = ; + interrupt-names = "macirq"; + clocks = <&clkc_periphs CLKID_SYS_ETH>, + <&scmi_clk CLKID_FCLK_DIV2>, + <&mpll CLKID_MPLL2>, + <&clkc_periphs CLKID_SYS_AMPIPE_ETH>; + clock-names = "stmmaceth", "clkin0", "clkin1", "pipeline"; + power-domains = <&pwrc PWRC_T7_ETH_ID>; + rx-fifo-depth = <4096>; + tx-fifo-depth = <2048>; + status = "disabled"; + + mdio0: mdio { + compatible = "snps,dwmac-mdio"; + #address-cells = <1>; + #size-cells = <0>; + }; + }; + apb4: bus@fe000000 { compatible = "simple-bus"; reg = <0x0 0xfe000000 0x0 0x480000>; @@ -645,6 +670,38 @@ gpio_intc: interrupt-controller@4080 { <10 11 12 13 14 15 16 17 18 19 20 21>; }; + eth_phy: mdio-multiplexer@28000 { + compatible = "amlogic,g12a-mdio-mux"; + reg = <0x0 0x28000 0x0 0xa4>; + clocks = <&clkc_periphs CLKID_SYS_ETHPHY>, + <&xtal>, + <&scmi_clk CLKID_FCLK_50M>; + clock-names = "pclk", "clkin0", "clkin1"; + mdio-parent-bus = <&mdio0>; + #address-cells = <1>; + #size-cells = <0>; + + ext_mdio: mdio@0 { + reg = <0>; + #address-cells = <1>; + #size-cells = <0>; + }; + + int_mdio: mdio@1 { + reg = <1>; + #address-cells = <1>; + #size-cells = <0>; + + internal_ephy: ethernet-phy@8 { + compatible = "ethernet-phy-id0180.3301", + "ethernet-phy-ieee802.3-c22"; + interrupts = ; + reg = <8>; + max-speed = <100>; + }; + }; + }; + uart_a: serial@78000 { compatible = "amlogic,t7-uart", "amlogic,meson-s4-uart"; reg = <0x0 0x78000 0x0 0x18>; -- 2.56.0