From nobody Sat Feb 7 08:07:17 2026 Received: from mail-qk1-f180.google.com (mail-qk1-f180.google.com [209.85.222.180]) (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 9571519E992 for ; Fri, 30 Jan 2026 04:15:24 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.222.180 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769746526; cv=none; b=qvAfj6Cgo4QhpCckeTkykZWG5TbxXRwxi1qJl3bCOinox18gJNJwRRPYZ10mevJYLz9wbf92Pn7KNiC6gMDj3i1Ou0Nx7WRBIOlV4eHqvV6rW3RDfbyHQfzKPRRb74PtreEgRS6yUCEi0jaZOFO9okC0iFRex0/C43Yc79tMn28= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769746526; c=relaxed/simple; bh=XG8z2auvVLPIEbb53B7ae1t5gK554gf/2iUDA2auxCE=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=AkGpMn0N8zA85oK1bXpOxiOIdB4joCz9rP1o3DCClw6xyUt3+DQubF1agCoA3K8ZZAu5dDqIDf39kC42ImGO3hZRgJ/P3eFK1B23X7Ji5dicDOGilFhc0RMrHTmLIMdapXtmpAoH/Pkeek0tc3w6KlEOruS+JATV1clDCuJV2vA= 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=f0RgedcN; arc=none smtp.client-ip=209.85.222.180 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="f0RgedcN" Received: by mail-qk1-f180.google.com with SMTP id af79cd13be357-8c7146b0854so186713485a.2 for ; Thu, 29 Jan 2026 20:15:24 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1769746523; x=1770351323; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=H+T2Zlo06xiXQn/gacLojfwLwZ7jz+x2wxOefgL6ljo=; b=f0RgedcNYI25iZqcVRNvl0JoNDes8iYK65ULcFPNybU6M4tnkGYYatdPVCILa3KEOM L4yvwlJz+9zc5fJ/RW/r6Cw5qnsC1aHxm7tX/Rydm9Gt73HAWk+eZzW9d8/KhysEnoGw dBtl0rNsk4KKCWJACevnTaOKHPUQvCgXMBoDVlue9nLgZYwTVEMTKZDvkg8tNKmHlVZm AUj0J9/D4Ak6/I5IKhrzsQE2YoM1zfQfUJ5RO99YNRgYZfJCcTUoZBQlTUs74IQKRp6T ECmxKmFAxrhSNskEjSnW1i1rhT/ckXChWs6Z2w2dGN7VvxIQigaOiXSFVnZXLRF9yrZ0 ALBA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1769746523; x=1770351323; 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; bh=H+T2Zlo06xiXQn/gacLojfwLwZ7jz+x2wxOefgL6ljo=; b=CmxQ59/FN6VD6xVAjmtPueFcTcTZ5KAw+qplzXDCH+CCw4b7Vrm0iIs5AVKoxjKhdM XCPFNUZYOgHA8MV181trt+0bW2UTSmS64hTneTcKHju4QdlMQwuMdGf9ykwekF53l+ov aaDWoH0hD8tnsIdYHzAC2kkOFUyXRm/LB8lbSnlZ3ILfah06+3m734YCbMgQ0VKWNVgL 6HZBq6wNNn636GjHgvFbnxwMnWIh/StQl+kOjbH6WVP38cmwdUsFb48TS2tNvk0+0pqj u1VLXHX/hJt6bZ9aveQbfX0H9yJ2twljyfCIASHtYd6iXlvBZLfLcRqopYGFrET2sCjw N9rA== X-Forwarded-Encrypted: i=1; AJvYcCUQ42LbZWP3T5Wcf4065bZOBRsI1Z8JVfKYsqZNCnYtoEiLAgstOx6qaajBheli/7TIQve9RNE8x1jZPXM=@vger.kernel.org X-Gm-Message-State: AOJu0Ywd5iE/B4Xym+OZ+7Wu8jHSHq2Ts6nVtzwGicVZexhUWXWvfeEN Vz++5ukzjFz7RAa1UJ72LywMOYXzG5xQwAeE12q2coSfkzI7zqY16I/0+DXbJSNO X-Gm-Gg: AZuq6aLTAPOFRI5ZQm/P+z7+J5Px/rhy2X8ks4xHY/OuaF+87t08ibNHW8QAxvEODgz ZtdLyvGZvyAnuk9Eh/u9AD9MIjBuIYT2efBwO32xuViCTrhSqqAtgOVZtkWxn7+ZX33VXF1O2NW riZhWsOjPeWtd3EIKR3rr78f5SlKxpk56pPMsmCKnzuuocoyXRbEhlRK3BSqM9IiOZkH4uromny p5WU8EzwDjaVuDc5WzlCT+omVvtlTi519/zArxd88BdBQh13PkAtOEsblrL7MXqwG5YX9oFTZVq gFXmx8kFnQyU23+bSvRtB8cJCVTvtUPbX94JT13Op/0yQydcGDKAdVAtWYUsI5e9EbCHDNWcB5o HNPWl9xzI9I2b38nssqS+7EWm00/ww8fXQbU2ajhSP3ckd/5eWKkoCgqApfXjyp41glg9uXjH6h PSyV0ofgh9rw== X-Received: by 2002:a05:693c:2b08:b0:2b0:5834:44d2 with SMTP id 5a478bee46e88-2b7c894932cmr655603eec.39.1769740049721; Thu, 29 Jan 2026 18:27:29 -0800 (PST) Received: from localhost ([2001:19f0:ac00:4eb8:5400:5ff:fe30:7df3]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-2b7bb9ca10csm4119874eec.30.2026.01.29.18.27.28 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 29 Jan 2026 18:27:29 -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)" , Yanteng Si , Yao Zi , Inochi Amaoto , Lad Prabhakar , Shangjuan Wei , Maxime Chevallier , Chen-Yu Tsai , Zhi Li , Boon Khai Ng , 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 v4 1/3] dt-bindings: net: Add support for Spacemit K3 dwmac Date: Fri, 30 Jan 2026 10:27:02 +0800 Message-ID: <20260130022705.1059214-2-inochiama@gmail.com> X-Mailer: git-send-email 2.52.0 In-Reply-To: <20260130022705.1059214-1-inochiama@gmail.com> References: <20260130022705.1059214-1-inochiama@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" The GMAC IP on Spacemit K3 is almost a standard Synopsys DesignWare MAC (version 5.40a) with some extra clock. Add necessary compatible string for this device. Signed-off-by: Inochi Amaoto --- .../devicetree/bindings/net/snps,dwmac.yaml | 2 + .../bindings/net/spacemit,k3-dwmac.yaml | 103 ++++++++++++++++++ 2 files changed, 105 insertions(+) create mode 100644 Documentation/devicetree/bindings/net/spacemit,k3-dwmac= .yaml diff --git a/Documentation/devicetree/bindings/net/snps,dwmac.yaml b/Docume= ntation/devicetree/bindings/net/snps,dwmac.yaml index dd3c72e8363e..faa598c19bf7 100644 --- a/Documentation/devicetree/bindings/net/snps,dwmac.yaml +++ b/Documentation/devicetree/bindings/net/snps,dwmac.yaml @@ -108,6 +108,7 @@ properties: - snps,dwmac-5.10a - snps,dwmac-5.20 - snps,dwmac-5.30a + - snps,dwmac-5.40a - snps,dwxgmac - snps,dwxgmac-2.10 - sophgo,sg2042-dwmac @@ -653,6 +654,7 @@ allOf: - snps,dwmac-5.10a - snps,dwmac-5.20 - snps,dwmac-5.30a + - snps,dwmac-5.40a - snps,dwxgmac - snps,dwxgmac-2.10 - st,spear600-gmac diff --git a/Documentation/devicetree/bindings/net/spacemit,k3-dwmac.yaml b= /Documentation/devicetree/bindings/net/spacemit,k3-dwmac.yaml new file mode 100644 index 000000000000..fc024a927fcc --- /dev/null +++ b/Documentation/devicetree/bindings/net/spacemit,k3-dwmac.yaml @@ -0,0 +1,103 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/net/spacemit,k3-dwmac.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Spacemit K3 DWMAC glue layer + +maintainers: + - Inochi Amaoto + +select: + properties: + compatible: + contains: + const: spacemit,k3-dwmac + required: + - compatible + +properties: + compatible: + items: + - const: spacemit,k3-dwmac + - const: snps,dwmac-5.40a + + reg: + maxItems: 1 + + clocks: + items: + - description: GMAC main clock + - description: PTP clock + - description: TX clock + + clock-names: + items: + - const: stmmaceth + - const: ptp_ref + - const: tx + + interrupts: + minItems: 1 + items: + - description: MAC interrupt + - description: MAC wake interrupt + + interrupt-names: + minItems: 1 + items: + - const: macirq + - const: eth_wake_irq + + resets: + maxItems: 1 + + reset-names: + const: stmmaceth + + spacemit,apmu: + $ref: /schemas/types.yaml#/definitions/phandle-array + items: + - items: + - description: phandle to the syscon node which control the glue= register + - description: offset of the control register + - description: offset of the dline register + description: + A phandle to syscon with offset to control registers for this MAC + +required: + - compatible + - reg + - clocks + - clock-names + - interrupts + - interrupt-names + - resets + - reset-names + - spacemit,apmu + +allOf: + - $ref: snps,dwmac.yaml# + +unevaluatedProperties: false + +examples: + - | + #include + + ethernet@cac80000 { + compatible =3D "spacemit,k3-dwmac", "snps,dwmac-5.40a"; + reg =3D <0xcac80000 0x2000>; + clocks =3D <&syscon_apmu 66>, <&syscon_apmu 68>, + <&syscon_apmu 69>; + clock-names =3D "stmmaceth", "ptp_ref", "tx"; + interrupts =3D <131 IRQ_TYPE_LEVEL_HIGH>, <276 IRQ_TYPE_LEVEL_HIGH>; + interrupt-names =3D "macirq", "eth_wake_irq"; + phy-mode =3D "rgmii-id"; + phy-handle =3D <&phy0>; + resets =3D <&syscon_apmu 67>; + reset-names =3D "stmmaceth"; + spacemit,apmu =3D <&syscon_apmu 0x384 0x38c>; + }; + --=20 2.52.0 From nobody Sat Feb 7 08:07:17 2026 Received: from mail-dy1-f182.google.com (mail-dy1-f182.google.com [74.125.82.182]) (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 285171F0E2E for ; Fri, 30 Jan 2026 02:27:33 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=74.125.82.182 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769740056; cv=none; b=TgdDEY9Jc9sDXGdriIuX6XFUlfxHc85ZWMCxMzrFH9tlkuibxb8zhRiyQQIZpplGFKZ865V0Uhoe2VvhQHr96ZGv7Tdpu8uoTaxD1raaVIvG5Yrr3a9rNG42hlPAOUR/lcrzpFaHlCtC4qOILJeDTzI1jSDNl2VFVjDHKnb7Rds= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769740056; c=relaxed/simple; bh=RbmYS+GbmO5r9aIsVbkZb99LO5fpXfIwGvbgj9g6qUI=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=I5M7IsiUyJbFVCGsxhcu6S9muYaByp43xX9Ua1AiUOzM9Kb1o4C+dLhg/xdW01HuTeSOVSbTgLdphfwDCK0HGr2n4qhQTX3w3J+uKmxFgMdav/lB6TPUGZ27y63pUR8TyTGyVGaDtuD4PnSXYgtRtwcPzK504edEV8SJQE72/Kg= 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=iSDGU8D2; arc=none smtp.client-ip=74.125.82.182 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="iSDGU8D2" Received: by mail-dy1-f182.google.com with SMTP id 5a478bee46e88-2b720e4dcb4so2073594eec.0 for ; Thu, 29 Jan 2026 18:27:33 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1769740053; x=1770344853; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=yB8/RdUGEfLZjhmXdp52kQTD2QqD1w42DdvzuHTbkg0=; b=iSDGU8D2EVPBdBFCJ3z9rD0zVqLNBo3dfujIpWkUNHmilABq4xuauisaNnit3p6amT Uwys1DNRjPQDxmL0inbPkMXXF7Aaw2Qneqtr3rYtQXg9BcCHeAnQnFsWfiTkKMlfyHFK 1YFaMipYN+4GrMDr+0Zf2nMzfyoMY+61HimBml0Uap8SBsC1G//8i6S7kmcOuSvKxTSp XMR1NN1YsEcotk+lJzoerRBGKs+nsMD6jVAaBZJfGIBvMjyaWvphSaSmdtnt1HKm6MiO y7udsPktt67p39lUu1H4lO59F/XTgpkN1dp5tAEAL7gjDMmSunF7CY7zCUiK2kj6v9CW tihg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1769740053; x=1770344853; 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; bh=yB8/RdUGEfLZjhmXdp52kQTD2QqD1w42DdvzuHTbkg0=; b=ZJnSMgEpDvQQXt4DZ89KybX52XyVI0LLfPNOs1RPrVnZXREIBNJ5xBVGxSsHW1UsQy lxlt9mF2v04L7iI08om2aUx1rB/+WheK/57eP8sZasGREDW56zm5af/DBIzFtd187ujh 3Cb7/iqOgb+24zmCl2kYfgT14yr4l+Xk7EtWzSl9BX20Gp2QGn5LIwq5IJ8mfTSIO2ny MUKoUQg5Te8ONIKd2HBl6pB+sWaXfgSehAewsxMYkPUcDATJCBX6l2kys/KXaxu7Z16k p1sarGrL8auau1bNKkjkRis8jwxIMTx+sPA26yo1ckEFykH7PJ+xQ/qaYK61OXwHkf0d ie7w== X-Forwarded-Encrypted: i=1; AJvYcCVlZpHneJlDT3u3Q1jn0KCf+JGkjzgaqvSG3qSDx6KzOU+SxZQkrHm+g6+XIsboH0HLqwXPq2FgqD5WbVY=@vger.kernel.org X-Gm-Message-State: AOJu0YziJtYoTZaQYaeZJf0G4khljn83nY6VnJLQLLTYypo1Y1ru/zm/ mvFdoFmGqQEcFnRCZVghtHyDNqCDmmK5Zf3jEQDaGh8OamPCIZoXMDHP X-Gm-Gg: AZuq6aJEH9Dm3VISCvO1j249Bg4cNtMiXr0n4kuA5vO1Rtqu+WVbsEzef/1oCNB+heH HjEn9xmvAHS+seJZOHNB6KzZUd0QiTnMcajytwSZdGDXK4j0LGt14jTUOuSj2HMVTBEv+rZzUKF C0yT8pfkbroxwYkbdCp9cQpiemhkOYhOIn2w/oejQtAO5dzMyJvMbrESbBbmPcSnWABoM0PfddI vQZ5+/Ai75Y7fxwCqw+jKGcg9Fnh47AQy/xbhR3Kbwn4C/P8ZUfRvm6iLvEy4seQkPDv8rgTI9C sYl1hCC4OA+aDlud354OsUEkkwg6dXbzzVoNtOkiwG3k4bfhFxFBNdZo7dxFlw3SwhPq+erP4zS ZwAxCKsLyHJ08VbdEWeiPhQKEyNLlyYuWjeh/LIyHrCeU/k/0D9KfXb+28xIFasUyAwVAf11B8K KkctRWS2+j1A== X-Received: by 2002:a05:7301:3e18:b0:2b7:4118:88aa with SMTP id 5a478bee46e88-2b7c890c90emr706190eec.35.1769740053090; Thu, 29 Jan 2026 18:27:33 -0800 (PST) Received: from localhost ([2001:19f0:ac00:4eb8:5400:5ff:fe30:7df3]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-2b7a16cfc73sm9365628eec.6.2026.01.29.18.27.32 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 29 Jan 2026 18:27:32 -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)" , Yanteng Si , Yao Zi , Inochi Amaoto , Lad Prabhakar , Shangjuan Wei , Maxime Chevallier , Chen-Yu Tsai , Zhi Li , Boon Khai Ng , 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 v4 2/3] net: stmmac: platform: Add snps,dwmac-5.40a IP compatible string Date: Fri, 30 Jan 2026 10:27:03 +0800 Message-ID: <20260130022705.1059214-3-inochiama@gmail.com> X-Mailer: git-send-email 2.52.0 In-Reply-To: <20260130022705.1059214-1-inochiama@gmail.com> References: <20260130022705.1059214-1-inochiama@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Add compatible string for 5.40a version that can avoid to define some platform data in the glue layer. Signed-off-by: Inochi Amaoto --- drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c b/driver= s/net/ethernet/stmicro/stmmac/stmmac_platform.c index 8979a50b5507..54c7b1537ab9 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c @@ -396,6 +396,7 @@ static const char * const stmmac_gmac4_compats[] =3D { "snps,dwmac-5.10a", "snps,dwmac-5.20", "snps,dwmac-5.30a", + "snps,dwmac-5.40a", NULL }; =20 --=20 2.52.0 From nobody Sat Feb 7 08:07:17 2026 Received: from mail-dy1-f182.google.com (mail-dy1-f182.google.com [74.125.82.182]) (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 DD10A3328F3 for ; Fri, 30 Jan 2026 02:27:37 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=74.125.82.182 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769740059; cv=none; b=j7On83Lnc1siGgSTKIoFYEIdNIgjVQMVfeeOsa3gKC5ja6a1oD0fMxADIp4tIyrSHiv/G+iWLHFtZXbC1LqECx/N3sBmXZB1fzgIrf3ZUVIItl8qKgY7UK//PxovV/IupMRrOF68DFCx79FeR7fcyzD/r9pEUCiZuCU8s87/n+M= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769740059; c=relaxed/simple; bh=ttQ8rBv1DBstUCXWf7W5fiRuEYVywTcUAO3LhNYpUUA=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=jGDTX+snIbWQthJF6k0LEsckpmS9GiKPFH5p3z/zrs5cO14lzGoWoX4A2Qecdo8LTVEh7aYz/o8dt4ZsyAIeIYmO92SBdJBENbAoyLA5L/AwnWCUaIHng8vy2RD7tPWV/r8yBJBhOVJRNyazBZZpjQkT3ZAcoP+32zv6gMBWk4o= 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=jG79E1R5; arc=none smtp.client-ip=74.125.82.182 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="jG79E1R5" Received: by mail-dy1-f182.google.com with SMTP id 5a478bee46e88-2b71320f501so2856017eec.1 for ; Thu, 29 Jan 2026 18:27:37 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1769740057; x=1770344857; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=sIZl5Xq7e2X6jMUzOZkJ4nra133biX/ZFgfGxWt8hQY=; b=jG79E1R5gAT/DhSd0QHLs0JLMlA37qbekHKVHo8Z77qJ839xSV99inVHqgbzWKrzL+ faWAKRThGqecZ1r+fbnXjFVp4h0ep/TJTda87NkYsCwUx8nDtImsvPQg8ZY69QZZqnCg Wke7drLjMVpbOT1zrUUGDZDv6YBzZp42YwRDi4sNxMXpC/PsHCgmFnkY6nHd6Q1DRs2f YRi/T9uACp+qqCQIqoRATHFTcabmTgWAcNYw3RdplOJW99Ms2VE7AyhUOLu1D7O2p7Iq 24crb42v/Ko8yocu0bpaxiL18vrHgUyRHsOstk7vJTrjY4/ibo0Tjj+kmPvtUTY2aHLJ VXFA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1769740057; x=1770344857; 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; bh=sIZl5Xq7e2X6jMUzOZkJ4nra133biX/ZFgfGxWt8hQY=; b=d3uMhaGSiaAsxkTYTOFvWlc9/S0GVXp7cDUnxy0OV7upKwB8nzBpm+nWZeFTNbD1N/ 9bDShCVJgq7pIzm4iPCuyWDcBJvuTwlja9IEyc3CjBYl+ZuvfesU/s8040NmNm94eG9T W8tmpC0jxpzkPIHK2h+fS/B9pympQfUKjU7wQsYb5Ur+URsZAqWvfIVKiUUx/UZ+34ss DWd0geWdc7fcVjRpMP33X5CBT5Ysi1C2+KH0XTOVcLDhTiCtvnP9VNTERLarEKbEBk7S oD+ydDnQVU+dVCRuWblRCUQr8AFeI5gXLkHEWgDtxBG/KgmkK8xDjTg/azjHiTKDOTo2 ckSA== X-Forwarded-Encrypted: i=1; AJvYcCXr64iEXdVi/JbXjyzZizIUYuv4s2GYGl9VxF+RzQbVhYA0TDrGetfh5+266zOYZVGVc+ZvVmrv8OPAXB8=@vger.kernel.org X-Gm-Message-State: AOJu0YyoLrD0oXBL0ddxmyTsQ6YkjajAAnioqpkHOlpmfP1zGZv9P5HA OejauqxnAh9D/blohJFahhB/f7daVweQa+d/rbsaOvADjvivQpLDNPmr X-Gm-Gg: AZuq6aK5/R6Cdl9XAgXQKFFbAnnEaPBlRSxn5450KOnnCU3YZVmq2qq/7w8Vg2tghj2 yNmpQyBa6srTxWUHifHZJ/BEpiyrUWvX13968mf46/8TbvF/uKBdSiqax/oOU/bMQznQtm1umxR sk9hk6yc6fY+TM76KB9uQaVg5HlRr3MhomR+m7f6B6XUJ4NeIGvohpVwKwG3dIq9EOqtOv5VjYL Yso8y6W7gpUuILhwov5A7WwtMibXhVhf+8OC48pLvGbY9OOjjYQX9DwNzj5SlA7v1j1fQQZgzjJ glrTB1qfoprgAaJ3dTRmlKLq1sF1JuZgVdFNlN/Z1GJmx94NwXG/EpuMmxBg2q3m8DqkVLcuRr2 hsQTtk9MBepbD/bkLtLYt1vEJUJdxfaU7fZrIPegOM5nEVUuKVxRKHLvoGP0y5Bq+LQI58Lwxw9 CGFhTWYdPxuw== X-Received: by 2002:a05:7300:8186:b0:2b7:c5d7:84b3 with SMTP id 5a478bee46e88-2b7c866dbc3mr1042558eec.19.1769740056871; Thu, 29 Jan 2026 18:27:36 -0800 (PST) Received: from localhost ([2001:19f0:ac00:4eb8:5400:5ff:fe30:7df3]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-2b7a1af8a7bsm9327816eec.34.2026.01.29.18.27.35 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 29 Jan 2026 18:27:36 -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)" , Yanteng Si , Yao Zi , Inochi Amaoto , Lad Prabhakar , Shangjuan Wei , Maxime Chevallier , Chen-Yu Tsai , Zhi Li , Boon Khai Ng , 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 v4 3/3] net: stmmac: Add glue layer for Spacemit K3 SoC Date: Fri, 30 Jan 2026 10:27:04 +0800 Message-ID: <20260130022705.1059214-4-inochiama@gmail.com> X-Mailer: git-send-email 2.52.0 In-Reply-To: <20260130022705.1059214-1-inochiama@gmail.com> References: <20260130022705.1059214-1-inochiama@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" The ethernet controller on Spacemit K3 SoC is Synopsys DesignWare MAC (version 5.40a), with the following special points: 1. The rate of the tx clock line is auto changed when the mac speed rate is changed, and no need for changing the input tx clock. 2. This controller require a extra syscon device to configure the interface type, enable wake up interrupt and delay configuration if needed. Add Spacemit dwmac driver support on the Spacemit K3 SoC. Signed-off-by: Inochi Amaoto --- drivers/net/ethernet/stmicro/stmmac/Kconfig | 12 ++ drivers/net/ethernet/stmicro/stmmac/Makefile | 1 + .../ethernet/stmicro/stmmac/dwmac-spacemit.c | 194 ++++++++++++++++++ 3 files changed, 207 insertions(+) create mode 100644 drivers/net/ethernet/stmicro/stmmac/dwmac-spacemit.c diff --git a/drivers/net/ethernet/stmicro/stmmac/Kconfig b/drivers/net/ethe= rnet/stmicro/stmmac/Kconfig index 907fe2e927f0..583a4692f5da 100644 --- a/drivers/net/ethernet/stmicro/stmmac/Kconfig +++ b/drivers/net/ethernet/stmicro/stmmac/Kconfig @@ -216,6 +216,18 @@ config DWMAC_SOPHGO for the stmmac device driver. This driver is used for the ethernet controllers on various Sophgo SoCs. =20 +config DWMAC_SPACEMIT + tristate "Spacemit dwmac support" + depends on OF && (ARCH_SPACEMIT || COMPILE_TEST) + select MFD_SYSCON + default m if ARCH_SPACEMIT + help + Support for ethernet controllers on Spacemit RISC-V SoCs + + This selects the Spacemit platform specific glue layer support + for the stmmac device driver. This driver is used for the + Spacemit K3 ethernet controllers. + config DWMAC_STARFIVE tristate "StarFive dwmac support" depends on OF && (ARCH_STARFIVE || COMPILE_TEST) diff --git a/drivers/net/ethernet/stmicro/stmmac/Makefile b/drivers/net/eth= ernet/stmicro/stmmac/Makefile index 7bf528731034..9e32045631d8 100644 --- a/drivers/net/ethernet/stmicro/stmmac/Makefile +++ b/drivers/net/ethernet/stmicro/stmmac/Makefile @@ -27,6 +27,7 @@ obj-$(CONFIG_DWMAC_RZN1) +=3D dwmac-rzn1.o obj-$(CONFIG_DWMAC_S32) +=3D dwmac-s32.o obj-$(CONFIG_DWMAC_SOCFPGA) +=3D dwmac-altr-socfpga.o obj-$(CONFIG_DWMAC_SOPHGO) +=3D dwmac-sophgo.o +obj-$(CONFIG_DWMAC_SPACEMIT) +=3D dwmac-spacemit.o obj-$(CONFIG_DWMAC_STARFIVE) +=3D dwmac-starfive.o obj-$(CONFIG_DWMAC_STI) +=3D dwmac-sti.o obj-$(CONFIG_DWMAC_STM32) +=3D dwmac-stm32.o diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-spacemit.c b/drivers= /net/ethernet/stmicro/stmmac/dwmac-spacemit.c new file mode 100644 index 000000000000..25d497a54ff7 --- /dev/null +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-spacemit.c @@ -0,0 +1,194 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Spacemit DWMAC platform driver + * + * Copyright (C) 2026 Inochi Amaoto + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "stmmac_platform.h" + +/* ctrl register bits */ +#define CTRL_PHY_INTF_RGMII BIT(3) +#define CTRL_PHY_INTF_MII BIT(4) +#define CTRL_WAKE_IRQ_EN BIT(9) +#define CTRL_PHY_IRQ_EN BIT(12) + +/* dline register bits */ +#define RGMII_RX_DLINE_EN BIT(0) +#define RGMII_RX_DLINE_STEP GENMASK(5, 4) +#define RGMII_RX_DLINE_CODE GENMASK(15, 8) +#define RGMII_TX_DLINE_EN BIT(16) +#define RGMII_TX_DLINE_STEP GENMASK(21, 20) +#define RGMII_TX_DLINE_CODE GENMASK(31, 24) + +#define MAX_DLINE_DELAY_CODE 0xff +#define MAX_WORKED_DELAY 2800 +/* Note: the delay step value is at 0.1ps */ +#define K3_DELAY_STEP 367 + +static int spacemit_dwmac_set_delay(struct regmap *apmu, unsigned int dlin= e_offset, + unsigned int tx_code, unsigned int rx_code) +{ + unsigned int mask, val; + + mask =3D RGMII_TX_DLINE_STEP | RGMII_TX_DLINE_CODE | RGMII_TX_DLINE_EN | + RGMII_RX_DLINE_STEP | RGMII_RX_DLINE_CODE | RGMII_RX_DLINE_EN; + + /* + * Since the delay step provided by config 0 is small enough, and + * it can cover the range of the valid delay, so there is no needed + * to use other step config. + */ + val =3D FIELD_PREP(RGMII_TX_DLINE_STEP, 0) | + FIELD_PREP(RGMII_TX_DLINE_CODE, tx_code) | RGMII_TX_DLINE_EN | + FIELD_PREP(RGMII_RX_DLINE_STEP, 0) | + FIELD_PREP(RGMII_RX_DLINE_CODE, rx_code) | RGMII_RX_DLINE_EN; + + return regmap_update_bits(apmu, dline_offset, mask, val); +} + +static int spacemit_dwmac_detected_delay_value(unsigned int delay) +{ + if (delay =3D=3D 0) + return 0; + + if (delay > MAX_WORKED_DELAY) + return -EINVAL; + + /* + * Note K3 require a specific factor for calculate + * the delay, in this scenario it is 0.9. So the + * formula is code * step / 10 * 0.9 + */ + return DIV_ROUND_CLOSEST(delay * 10 * 10, K3_DELAY_STEP * 9); +} + +static int spacemit_dwmac_fix_delay(struct plat_stmmacenet_data *plat_dat, + struct regmap *apmu, + unsigned int dline_offset, + unsigned int tx_delay, unsigned int rx_delay) +{ + int rx_code; + int tx_code; + + rx_code =3D spacemit_dwmac_detected_delay_value(rx_delay); + if (rx_code < 0) + return rx_code; + + tx_code =3D spacemit_dwmac_detected_delay_value(tx_delay); + if (tx_code < 0) + return tx_code; + + return spacemit_dwmac_set_delay(apmu, dline_offset, tx_code, rx_code); +} + +static int spacemit_dwmac_update_ifconfig(struct plat_stmmacenet_data *pla= t_dat, + struct stmmac_resources *stmmac_res, + struct regmap *apmu, + unsigned int ctrl_offset) +{ + unsigned int mask =3D CTRL_PHY_INTF_MII | CTRL_PHY_INTF_RGMII | CTRL_WAKE= _IRQ_EN; + unsigned int val =3D 0; + + switch (plat_dat->phy_interface) { + case PHY_INTERFACE_MODE_MII: + val =3D CTRL_PHY_INTF_MII; + break; + + case PHY_INTERFACE_MODE_RMII: + break; + + case PHY_INTERFACE_MODE_RGMII: + case PHY_INTERFACE_MODE_RGMII_ID: + case PHY_INTERFACE_MODE_RGMII_RXID: + case PHY_INTERFACE_MODE_RGMII_TXID: + val =3D CTRL_PHY_INTF_RGMII; + break; + + default: + return -EOPNOTSUPP; + } + + if (stmmac_res->wol_irq >=3D 0) + val |=3D CTRL_WAKE_IRQ_EN; + + return regmap_update_bits(apmu, ctrl_offset, mask, val); +} + +static int spacemit_dwmac_probe(struct platform_device *pdev) +{ + struct plat_stmmacenet_data *plat_dat; + struct stmmac_resources stmmac_res; + struct device *dev =3D &pdev->dev; + unsigned int offset[2]; + struct regmap *apmu; + struct clk *clk_tx; + u32 rx_delay =3D 0; + u32 tx_delay =3D 0; + int ret; + + ret =3D stmmac_get_platform_resources(pdev, &stmmac_res); + if (ret) + return dev_err_probe(dev, ret, + "failed to get platform resources\n"); + + plat_dat =3D devm_stmmac_probe_config_dt(pdev, stmmac_res.mac); + if (IS_ERR(plat_dat)) + return dev_err_probe(dev, PTR_ERR(plat_dat), + "failed to parse DT parameters\n"); + + clk_tx =3D devm_clk_get_enabled(&pdev->dev, "tx"); + if (IS_ERR(clk_tx)) + return dev_err_probe(&pdev->dev, PTR_ERR(clk_tx), + "failed to get tx clock\n"); + + apmu =3D syscon_regmap_lookup_by_phandle_args(pdev->dev.of_node, "spacemi= t,apmu", 2, offset); + if (IS_ERR(apmu)) + return dev_err_probe(dev, PTR_ERR(apmu), + "Failed to get apmu regmap\n"); + + ret =3D spacemit_dwmac_update_ifconfig(plat_dat, &stmmac_res, + apmu, offset[0]); + if (ret) + return dev_err_probe(dev, ret, "Failed to configure ifconfig\n"); + + of_property_read_u32(pdev->dev.of_node, "tx-internal-delay-ps", &tx_delay= ); + of_property_read_u32(pdev->dev.of_node, "rx-internal-delay-ps", &rx_delay= ); + + ret =3D spacemit_dwmac_fix_delay(plat_dat, apmu, offset[1], tx_delay, rx_= delay); + if (ret) + return dev_err_probe(dev, ret, "Failed to configure delay\n"); + + return stmmac_dvr_probe(dev, plat_dat, &stmmac_res); +} + +static const struct of_device_id spacemit_dwmac_match[] =3D { + { .compatible =3D "spacemit,k3-dwmac" }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, spacemit_dwmac_match); + +static struct platform_driver spacemit_dwmac_driver =3D { + .probe =3D spacemit_dwmac_probe, + .remove =3D stmmac_pltfr_remove, + .driver =3D { + .name =3D "spacemit-dwmac", + .pm =3D &stmmac_pltfr_pm_ops, + .of_match_table =3D spacemit_dwmac_match, + }, +}; +module_platform_driver(spacemit_dwmac_driver); + +MODULE_AUTHOR("Inochi Amaoto "); +MODULE_DESCRIPTION("Spacemit DWMAC platform driver"); +MODULE_LICENSE("GPL"); --=20 2.52.0