From nobody Tue Sep 9 21:30:28 2025 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 6A4FA25BEF8; Sat, 6 Sep 2025 04:13:42 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1757132022; cv=none; b=u3+mTz3yayrFlnC4blCwfIn+u5mcJsvtf5UOk4U7FSRdXSAqHq8SYFiDWAYBuGlCfC+JjwHtjaimkmgBeLAFr4HCobzUSDriJGAVrp5htMQFNDLbubyOD7KjPhpKsNxdPTAt+c99hvzA/3XP35Hb66niTfQKXagGHey5LNjIy/s= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1757132022; c=relaxed/simple; bh=cGn/A6pv5/QIRUIvcflPGOg7C3keUUcnpZ16rUvo3ZA=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=U73+djXEhHQ4skuuerKwKkqtqZ+iyNDjjdQaWf50zO2epISKdMkq85FdkT99gMWiPQC3F4xlYxtRHZv8lUWjmYc1upuXPw4+Uwf+ea0UxYCvI3vr0/gGYoPN5AuzwH0scqyBwEdhsGm9yDZiUgsqqHvTuwU5y44/VlI8Ywe/StY= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=jMCqmG8X; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="jMCqmG8X" Received: by smtp.kernel.org (Postfix) with ESMTPSA id C8831C4CEF9; Sat, 6 Sep 2025 04:13:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1757132022; bh=cGn/A6pv5/QIRUIvcflPGOg7C3keUUcnpZ16rUvo3ZA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=jMCqmG8XhfdDjFQNrGIYpHAZwpEOfwxAuRgcq+VvwROzExK7lxf2jGIYMpWJ9kolL dj3HKl8NrOGySD/8VYF0MeV/ym5LqniQZta7ErM9hJ+4CJ9+L58wlgKLmy+EcaTyUA 1SDV+kTWklP/zVYJJmNbiHohB3SG9nUV1lVvSA7JqQ3q5QE2lLLxTc2KH/B9zpvjZY iwbFnaexBWjXTSvk7B14sfD27IRCifWT2MzzWXY1dgtokWCyaZpdi99VOSmdWz/vng 3dbYNog0DhcRBRqbtFaoxknytNM2NTGDX9oVhTABUvzbIgIAFHs6mqXTUmSBk4hkC1 QFKijWspFTJBg== Received: by wens.tw (Postfix, from userid 1000) id 9F1A05FAC5; Sat, 06 Sep 2025 12:13:38 +0800 (CST) From: Chen-Yu Tsai To: Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland Cc: netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev, linux-kernel@vger.kernel.org, Andre Przywara Subject: [PATCH net-next v3 01/10] dt-bindings: net: sun8i-emac: Add A523 GMAC200 compatible Date: Sat, 6 Sep 2025 12:13:24 +0800 Message-Id: <20250906041333.642483-2-wens@kernel.org> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20250906041333.642483-1-wens@kernel.org> References: <20250906041333.642483-1-wens@kernel.org> 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" From: Chen-Yu Tsai The Allwinner A523 SoC family has a second Ethernet controller, called the GMAC200 in the BSP and T527 datasheet, and referred to as GMAC1 for numbering. This controller, according to BSP sources, is fully compatible with a slightly newer version of the Synopsys DWMAC core. The glue layer around the controller is the same as found around older DWMAC cores on Allwinner SoCs. The only slight difference is that since this is the second controller on the SoC, the register for the clock delay controls is at a different offset. Last, the integration includes a dedicated clock gate for the memory bus and the whole thing is put in a separately controllable power domain. Add a compatible string entry for it, and work in the requirements for a second clock and a power domain. Signed-off-by: Chen-Yu Tsai --- Changes since v2: - Added "select" to avoid matching against all dwmac entries Changes since v1: - Switch to generic (tx|rx)-internal-delay-ps properties --- .../net/allwinner,sun8i-a83t-emac.yaml | 96 ++++++++++++++++++- 1 file changed, 94 insertions(+), 2 deletions(-) diff --git a/Documentation/devicetree/bindings/net/allwinner,sun8i-a83t-ema= c.yaml b/Documentation/devicetree/bindings/net/allwinner,sun8i-a83t-emac.ya= ml index 2ac709a4c472..9d205c5d93ca 100644 --- a/Documentation/devicetree/bindings/net/allwinner,sun8i-a83t-emac.yaml +++ b/Documentation/devicetree/bindings/net/allwinner,sun8i-a83t-emac.yaml @@ -10,6 +10,21 @@ maintainers: - Chen-Yu Tsai - Maxime Ripard =20 +# We need a select here so we don't match all nodes with 'snps,dwmac' +select: + properties: + compatible: + contains: + enum: + - allwinner,sun8i-a83t-emac + - allwinner,sun8i-h3-emac + - allwinner,sun8i-r40-gmac + - allwinner,sun8i-v3s-emac + - allwinner,sun50i-a64-emac + - allwinner,sun55i-a523-gmac200 + required: + - compatible + properties: compatible: oneOf: @@ -26,6 +41,9 @@ properties: - allwinner,sun50i-h616-emac0 - allwinner,sun55i-a523-gmac0 - const: allwinner,sun50i-a64-emac + - items: + - const: allwinner,sun55i-a523-gmac200 + - const: snps,dwmac-4.20a =20 reg: maxItems: 1 @@ -37,14 +55,19 @@ properties: const: macirq =20 clocks: - maxItems: 1 + minItems: 1 + maxItems: 2 =20 clock-names: - const: stmmaceth + minItems: 1 + maxItems: 2 =20 phy-supply: description: PHY regulator =20 + power-domains: + maxItems: 1 + syscon: $ref: /schemas/types.yaml#/definitions/phandle description: @@ -191,6 +214,45 @@ allOf: - mdio-parent-bus - mdio@1 =20 + - if: + properties: + compatible: + contains: + const: allwinner,sun55i-a523-gmac200 + then: + properties: + clocks: + minItems: 2 + clock-names: + items: + - const: stmmaceth + - const: mbus + tx-internal-delay-ps: + default: 0 + minimum: 0 + maximum: 700 + multipleOf: 100 + description: + External RGMII PHY TX clock delay chain value in ps. + rx-internal-delay-ps: + default: 0 + minimum: 0 + maximum: 3100 + multipleOf: 100 + description: + External RGMII PHY TX clock delay chain value in ps. + required: + - power-domains + else: + properties: + clocks: + maxItems: 1 + clock-names: + items: + - const: stmmaceth + power-domains: false + + unevaluatedProperties: false =20 examples: @@ -323,4 +385,34 @@ examples: }; }; =20 + - | + ethernet@4510000 { + compatible =3D "allwinner,sun55i-a523-gmac200", + "snps,dwmac-4.20a"; + reg =3D <0x04510000 0x10000>; + clocks =3D <&ccu 117>, <&ccu 79>; + clock-names =3D "stmmaceth", "mbus"; + resets =3D <&ccu 43>; + reset-names =3D "stmmaceth"; + interrupts =3D <0 47 4>; + interrupt-names =3D "macirq"; + pinctrl-names =3D "default"; + pinctrl-0 =3D <&rgmii1_pins>; + power-domains =3D <&pck600 4>; + syscon =3D <&syscon>; + phy-handle =3D <&ext_rgmii_phy_1>; + phy-mode =3D "rgmii-id"; + snps,fixed-burst; + snps,axi-config =3D <&gmac1_stmmac_axi_setup>; + + mdio { + compatible =3D "snps,dwmac-mdio"; + #address-cells =3D <1>; + #size-cells =3D <0>; + + ext_rgmii_phy_1: ethernet-phy@1 { + reg =3D <1>; + }; + }; + }; ... --=20 2.39.5