From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-qk1-f169.google.com (mail-qk1-f169.google.com [209.85.222.169]) (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 7344D3161B5 for ; Wed, 21 Jan 2026 09:12:18 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.222.169 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768986740; cv=none; b=e/0GfiVtf7guK9O0UHBM6z+ogSWND+Te617+sE3OxXPc8y4T9oK+e62YvsqOEX2KaNwX0XVSgX7E9F8a6+0ZSTeVgV4vII2QJ8XX2UUj5lakZh9HMbtXOFtZfHc9otyiuavj6Q6JS7tUsugeppXX0ZVohxaFLp1qKY9MYyuazEs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768986740; c=relaxed/simple; bh=ivdSRO/Sa+8y6SbfRo9OGAFBLBdiIOgB64qyEx+BEkA=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=k6IDAf6awq+T8QQB21EsKeJdRBN5BZFQr14L2RNGyO30nz7HpLv2OaJTMxw74pBxj/cHbOfpnwSFY+ClwgF1mfQ2hpo1F9m2IB1IpwXcZ/QoItYcIvS+I0Q2MkASfNajqqAWx16CVGx0YDH7vzZEx7AGe/SRpyeAvRY1CByYNEA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=F2kxRLlX; arc=none smtp.client-ip=209.85.222.169 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="F2kxRLlX" Received: by mail-qk1-f169.google.com with SMTP id af79cd13be357-8c5386f1c9fso918901785a.1 for ; Wed, 21 Jan 2026 01:12:18 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1768986737; x=1769591537; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=Fbq78sea0hmX5//P4GjhYjkpSX+LqZ+KYNl1xezZDJM=; b=F2kxRLlX1ZSwnQ/Iq4Qz9o4mAvQWrT0myKFGKy8F/u4EVYUg4JOcJ/2CNGJ2KJCdWS ON8wcG3TNVN6DrmyzPBHJzFD/Xp9IxhBYiruPhlo6norTsbbwANFKpNNubLBfaR1OuYQ kS4rNc+/gYTaY0dxmjc40boEWyjB/8AXEWGEoEHUax5IRyAKf/LlG0bf6154YldozkNw oHWCMHawrBG5HIay6e7wwQssKJDthFS56Y+PrXaGvgXrXXag1SlTvwN28Ee3NSwQo9Hj Y2o38ouGL9HOu7+LtGcCk6wX3W4tl9c3p6CNFDs3UW+6G6b5opcCq1qxuGSlhMzq6z8w fIcA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1768986737; x=1769591537; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-gg:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=Fbq78sea0hmX5//P4GjhYjkpSX+LqZ+KYNl1xezZDJM=; b=Tmk/wGYJC9ew6O8jW0lppTpiB87iZNaLGSXo69Hkggk4TkRfW9AVyIDWqzZ8Ne/IQP UzLoJgKMEGrPks/egxC/aq/BPdsZD2gKwonmE9fzjA0WmUg2fZkuLOT1y/k9waLSzHgY v22hCRchII3Z/Ne7VU0HWEZXG30VrjyJ+vWAMtm3+J1LLU4cw2HCiqh/MYw5uRQzUzPL txbuoDX8VrSIvtoOrv2JCTLS08yxJ6c9+e3GeaprhSqL3xZgnyV6GXQuntf+4mh95T/U 98CP2CnRaWaxlKAJmDR/FnumnHZiI9l66jR37hkP9E3CKH+/09UfFlUk7csU77OoGCSi bacw== X-Gm-Message-State: AOJu0Yz0RSIY6Y1L5uhRA9HRfK3BqbPFKPUetU/gOSOvBu26jKcqZF85 GdXMEL/zQvvKvCT5E0F9bRmLM3XhQ2DftF4egK3ldzj2Nf4ukSmKdWLg X-Gm-Gg: AZuq6aKFFKxRgNAsT1KZQWe9bCgAgje2JEaDseIIxhOcyCIkTFjllLakXvW0ReWubqp hGs1+9i7IkCLEObbPO67OAMV1GnEdpk1dGqSaoFFuO5IeQ5EiVzo03VUwijjJv2/opqotqo7bZE WYLSdJNIO7HSZ3I6hcU8WUMH5YI6mpvhgqZPLuwy2UQGjGdL4QfE36R6+l9xXolErYAAHlm6qRK H9EjW8LcQtuxymwhuazrrg8luKW+XvMjm5LYNk5PZUALWCnorVrDdwZleSWzOHutbbOjJays+NO YpB4K1uuQIHhcCZf3Q0Rszd0N0l0ZxCnYcBRK6uw7OcnBSNQ3BosSpxTzLTz8n7whH7xthov1nI bvyDBBw7FeUX4vLML72ep1NRnAZgQCxp1u7DFNLGAwRLjw48Pv8Z5VnQHQGv3MxtKZ2XM4mIRmr lwAlv5Wu7aBA== X-Received: by 2002:a05:7022:6b86:b0:11b:923d:773f with SMTP id a92af1059eb24-1244b3081a4mr12334928c88.5.1768979609488; Tue, 20 Jan 2026 23:13:29 -0800 (PST) Received: from localhost ([2001:19f0:ac00:4eb8:5400:5ff:fe30:7df3]) by smtp.gmail.com with ESMTPSA id a92af1059eb24-1244ad7201fsm24056346c88.7.2026.01.20.23.13.28 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 20 Jan 2026 23:13:29 -0800 (PST) From: Inochi Amaoto To: Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Yixun Lan , Maxime Coquelin , Alexandre Torgue , Richard Cochran , Paul Walmsley , Palmer Dabbelt , Albert Ou , Alexandre Ghiti , "Russell King (Oracle)" , Yao Zi , Yanteng Si , Vladimir Oltean , Inochi Amaoto , Lad Prabhakar , Chen-Yu Tsai , Choong Yong Liang , Shangjuan Wei , Jernej Skrabec , Boon Khai Ng , Maxime Chevallier , Quentin Schulz , Giuseppe Cavallaro , Jose Abreu Cc: netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org, spacemit@lists.linux.dev, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, Longbin Li Subject: [PATCH net-next v2 0/3] riscv: spacemit: Add ethernet support for K3 Date: Wed, 21 Jan 2026 15:13:08 +0800 Message-ID: <20260121071315.940130-1-inochiama@gmail.com> X-Mailer: git-send-email 2.52.0 Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Add initial support for ethernet controller of the Spacemit K3 SoC. This ethernet controller is almost a standard Synopsys DesignWare MAC (version 5.40a). This controller require a syscon device to configure some basic features, like interface type and internal delay. Change from v1: - https://lore.kernel.org/netdev/20260120043609.910302-1-inochiama@gmail.com patch 1: 1. remove phy clock patch 3: 1. improve comment and include something special about Spacmit K3 dwmac 2. reorder the included file 3. fix wrong delay macro used in spacemit_dwmac_set_delay. 4. add check for maximum supported delay. 5. use DIV_ROUND_CLOSEST to calculate best delay configuration. 6. use assign for the ctrl register initial value. 7. fix input when calling of_property_read_u32(). Inochi Amaoto (3): dt-bindings: net: Add support for Spacemit K3 dwmac net: stmmac: platform: Add snps,dwmac-5.40a IP compatible string net: stmmac: Add glue layer for Spacemit K3 SoC .../devicetree/bindings/net/snps,dwmac.yaml | 3 + .../bindings/net/spacemit,k3-dwmac.yaml | 103 ++++++++ drivers/net/ethernet/stmicro/stmmac/Kconfig | 12 + drivers/net/ethernet/stmicro/stmmac/Makefile | 1 + .../ethernet/stmicro/stmmac/dwmac-spacemit.c | 221 ++++++++++++++++++ .../ethernet/stmicro/stmmac/stmmac_platform.c | 1 + 6 files changed, 341 insertions(+) create mode 100644 Documentation/devicetree/bindings/net/spacemit,k3-dwmac.yaml create mode 100644 drivers/net/ethernet/stmicro/stmmac/dwmac-spacemit.c -- 2.52.0