From patchwork Mon Nov 6 16:54:33 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christian Marangi X-Patchwork-Id: 741589 Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (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 D28DC1D69B; Mon, 6 Nov 2023 16:54:45 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="nnVAHXCk" Received: from mail-wr1-x435.google.com (mail-wr1-x435.google.com [IPv6:2a00:1450:4864:20::435]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4150DB8; Mon, 6 Nov 2023 08:54:44 -0800 (PST) Received: by mail-wr1-x435.google.com with SMTP id ffacd0b85a97d-32faea0fa1fso2585436f8f.1; Mon, 06 Nov 2023 08:54:44 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1699289683; x=1699894483; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:to:from:from:to:cc:subject:date:message-id :reply-to; bh=lD7BF13nupmFvfWy4paCof/Bi2m3Fd/JhAxIizO404M=; b=nnVAHXCkLq6SA/I3UbJJZ0KXQXnjmUyidvKKVSsbQPs1BW8FzrfybMqXt+ia3okBFq CqZQdrf8heHaRohRVV0GkKklc7+XbC0ZwwYOPu39gi0VMuQKBHU5/IbXvvcpOyEr0n5o DYkua4ZPXZo+5XYFsVtsGMz1DVR9SXZ8jpQ46QWmzecWainm7gme5Y0z7p0dzGX9dsOS v6cOPGzrL1c0wHuZj/9SetrLse1cxXpo65ymunx15W6gHR7kjsajaCiwmaOcxoMY8bJF s9ie8aoplKdCAQGP3YW2G91k4vrQKRXKsOe6bsTpv+HsRJ9BFJpzMPxVhJJMQHobCQbx xo5A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1699289683; x=1699894483; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=lD7BF13nupmFvfWy4paCof/Bi2m3Fd/JhAxIizO404M=; b=ryv8Luahsjvnm7kOxMtfk629z6KbcRERtFFPvmbihtWnwOh0Kv0rbPoHneV7oXJvuT ya1EGoeSb3PVr+8VmBVPBS8hGUf04/92QNBDay+cNnaxp7r23H8x9fTonMIBQHvYy83K AndMU4Wo4rABSBsojpq8WQGN64TuXuYImUMkc9muMpQSz6wBNkhzeyIBkhCH6gHa3ydE QYNp/fDGBmplGM2Fty9l/9WQQQXR0Ff4rMzmXFeskwIzGr5hQmBl+R2Pq6Cmiwdxcxwo XIZCCpH4ACojZnOoJ4BzoDEtmuKLFlAToC2nNf0LFriSN0EACpwGvV0EQKKCiGY4Xkje VEDw== X-Gm-Message-State: AOJu0YxBYDsSzKLiuGGK32CaFScTPp6jqAnObYNpOeL3OIfz62mCr4zT 0QTwf5Z9JOvEQQXwAzdog6w= X-Google-Smtp-Source: AGHT+IHn0RisOW2Jmasm+TqhRJnsbqc00LBKcebtXQBWJQmR+PwsNFqHH4ifjLcVKWHa17TDn6cZqg== X-Received: by 2002:a5d:6d04:0:b0:32f:7d50:62f8 with SMTP id e4-20020a5d6d04000000b0032f7d5062f8mr97970wrq.3.1699289682467; Mon, 06 Nov 2023 08:54:42 -0800 (PST) Received: from localhost.localdomain (93-34-89-13.ip49.fastwebnet.it. [93.34.89.13]) by smtp.googlemail.com with ESMTPSA id a11-20020a05600c348b00b0040813e14b49sm13182044wmq.30.2023.11.06.08.54.41 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 06 Nov 2023 08:54:42 -0800 (PST) From: Christian Marangi To: "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Andrew Lunn , Heiner Kallweit , Russell King , Christian Marangi , Robert Marko , Vladimir Oltean , netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [net-next RFC PATCH v5 4/4] dt-bindings: Document bindings for Marvell Aquantia PHY Date: Mon, 6 Nov 2023 17:54:33 +0100 Message-Id: <20231106165433.2746-4-ansuelsmth@gmail.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20231106165433.2746-1-ansuelsmth@gmail.com> References: <20231106165433.2746-1-ansuelsmth@gmail.com> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Document bindings for Marvell Aquantia PHY. The Marvell Aquantia PHY require a firmware to work correctly and there at least 3 way to load this firmware. Describe all the different way and document the binding "firmware-name" to load the PHY firmware from userspace. Signed-off-by: Christian Marangi Reviewed-by: Conor Dooley --- Changes v5: - Drop extra entry not related to HW description Changes v3: - Make DT description more OS agnostic - Use custom select to fix dtbs checks Changes v2: - Add DT patch .../bindings/net/marvell,aquantia.yaml | 123 ++++++++++++++++++ 1 file changed, 123 insertions(+) create mode 100644 Documentation/devicetree/bindings/net/marvell,aquantia.yaml diff --git a/Documentation/devicetree/bindings/net/marvell,aquantia.yaml b/Documentation/devicetree/bindings/net/marvell,aquantia.yaml new file mode 100644 index 000000000000..7106c5bdf73c --- /dev/null +++ b/Documentation/devicetree/bindings/net/marvell,aquantia.yaml @@ -0,0 +1,123 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/net/marvell,aquantia.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Marvell Aquantia Ethernet PHY + +maintainers: + - Christian Marangi + +description: | + Marvell Aquantia Ethernet PHY require a firmware to be loaded to actually + work. + + This can be done and is implemented by OEM in 3 different way: + - Attached SPI flash directly to the PHY with the firmware. The PHY + will self load the firmware in the presence of this configuration. + - Dedicated partition on system NAND with firmware in it. NVMEM + subsystem will be used and the declared NVMEM cell will load + the firmware to the PHY using the PHY mailbox interface. + - Manually provided firmware loaded from a file in the filesystem. + +allOf: + - $ref: ethernet-phy.yaml# + +select: + properties: + compatible: + contains: + enum: + - ethernet-phy-id03a1.b445 + - ethernet-phy-id03a1.b460 + - ethernet-phy-id03a1.b4a2 + - ethernet-phy-id03a1.b4d0 + - ethernet-phy-id03a1.b4e0 + - ethernet-phy-id03a1.b5c2 + - ethernet-phy-id03a1.b4b0 + - ethernet-phy-id03a1.b662 + - ethernet-phy-id03a1.b712 + - ethernet-phy-id31c3.1c12 + required: + - compatible + +properties: + reg: + maxItems: 1 + + firmware-name: + description: specify the name of PHY firmware to load + + nvmem-cells: + description: phandle to the firmware nvmem cell + maxItems: 1 + + nvmem-cell-names: + const: firmware + +required: + - compatible + - reg + +unevaluatedProperties: false + +examples: + - | + mdio { + #address-cells = <1>; + #size-cells = <0>; + + ethernet-phy@0 { + /* Only needed to make DT lint tools work. Do not copy/paste + * into real DTS files. + */ + compatible = "ethernet-phy-id31c3.1c12", + "ethernet-phy-ieee802.3-c45"; + + reg = <0>; + firmware-name = "AQR-G4_v5.4.C-AQR_CIG_WF-1945_0x8_ID44776_VER1630.cld"; + }; + + ethernet-phy@1 { + /* Only needed to make DT lint tools work. Do not copy/paste + * into real DTS files. + */ + compatible = "ethernet-phy-id31c3.1c12", + "ethernet-phy-ieee802.3-c45"; + + reg = <0>; + nvmem-cells = <&aqr_fw>; + nvmem-cell-names = "firmware"; + }; + }; + + flash { + compatible = "jedec,spi-nor"; + #address-cells = <1>; + #size-cells = <1>; + + partitions { + compatible = "fixed-partitions"; + #address-cells = <1>; + #size-cells = <1>; + + /* ... */ + + partition@650000 { + compatible = "nvmem-cells"; + label = "0:ethphyfw"; + reg = <0x650000 0x80000>; + read-only; + #address-cells = <1>; + #size-cells = <1>; + + aqr_fw: aqr_fw@0 { + reg = <0x0 0x5f42a>; + }; + }; + + /* ... */ + + }; + };