From patchwork Mon Jun 10 09:25:40 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maxime Ripard X-Patchwork-Id: 10984531 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id D887F92A for ; Mon, 10 Jun 2019 09:26:23 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id BCC4B26E56 for ; Mon, 10 Jun 2019 09:26:23 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id B0DA528864; Mon, 10 Jun 2019 09:26:23 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id C1F0A26E56 for ; Mon, 10 Jun 2019 09:26:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-Id:Date:Subject:To :From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=nWKRc71i4C0mj20Yea3oQ1CiXNYF18H9mVzCIyS20os=; b=f5913jTV6ECkNx jJXOVP7icdD/WqwTSGVe7OToEk5+qusfGqGWPnRoNzfgb25naoCMQW1AlwHGS2c2yjVMhhgPslTt1 mGqBu+ynXlMzkEdpHk6iJWVjbzB+nPGE40+uUTaSaL9H/qF96jcwzF5jIUaNyHV1nknfg3BMhY+D3 TAnMvZUilJKTFYcmnCYl78s675tcmGYzUXa68orO1eF7+SqmT19DfNrpEKL4j88tctaxvNiFcxA2e 3tnoEfHsiGd/u9qGM3JlgANMaJQHf9tBz4NtrSasjAnS+TFjTixUtSFerrMGUWhIuAf1nt5s1+MNU Kf26/6ElNvCOm1XwsJag==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92 #3 (Red Hat Linux)) id 1haGZF-00067p-D1; Mon, 10 Jun 2019 09:26:17 +0000 Received: from relay10.mail.gandi.net ([217.70.178.230]) by bombadil.infradead.org with esmtps (Exim 4.92 #3 (Red Hat Linux)) id 1haGZ9-00066z-Nx for linux-arm-kernel@lists.infradead.org; Mon, 10 Jun 2019 09:26:14 +0000 Received: from localhost (aaubervilliers-681-1-40-246.w90-88.abo.wanadoo.fr [90.88.159.246]) (Authenticated sender: maxime.ripard@bootlin.com) by relay10.mail.gandi.net (Postfix) with ESMTPSA id 7407A240005; Mon, 10 Jun 2019 09:25:53 +0000 (UTC) From: Maxime Ripard To: Mark Rutland , Rob Herring , Frank Rowand , "David S . Miller" , Chen-Yu Tsai , Maxime Ripard Subject: [PATCH v2 01/11] dt-bindings: net: Add YAML schemas for the generic Ethernet options Date: Mon, 10 Jun 2019 11:25:40 +0200 Message-Id: <91618c7e9a5497462afa74c6d8a947f709f54331.1560158667.git-series.maxime.ripard@bootlin.com> X-Mailer: git-send-email 2.21.0 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190610_022612_102822_89282606 X-CRM114-Status: GOOD ( 24.38 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, Florian Fainelli , Alexandre Torgue , Andrew Lunn , =?utf-8?q?Antoine_T=C3=A9nart?= , netdev@vger.kernel.org, Maxime Chevallier , Maxime Coquelin , linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, Heiner Kallweit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP The Ethernet controllers have a good number of generic options that can be needed in a device tree. Add a YAML schemas for those. Signed-off-by: Maxime Ripard Reviewed-by: Rob Herring --- Changes from v1: - Use an enum for phy-connection-types - Validate the items for the fixed-link array - Set the number of valid items for link-gpios to 1 - Removed deprecated properties (phy-mode, phy, phy-device) --- Documentation/devicetree/bindings/net/ethernet-controller.yaml | 194 +++++++- Documentation/devicetree/bindings/net/ethernet.txt | 69 +-- Documentation/devicetree/bindings/net/fixed-link.txt | 55 +-- 3 files changed, 196 insertions(+), 122 deletions(-) create mode 100644 Documentation/devicetree/bindings/net/ethernet-controller.yaml base-commit: 3f310e51ceb146cfdd4c8872452a1f7fa059af1c diff --git a/Documentation/devicetree/bindings/net/ethernet-controller.yaml b/Documentation/devicetree/bindings/net/ethernet-controller.yaml new file mode 100644 index 000000000000..0f53fb16fa6c --- /dev/null +++ b/Documentation/devicetree/bindings/net/ethernet-controller.yaml @@ -0,0 +1,194 @@ +# SPDX-License-Identifier: GPL-2.0 +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/net/ethernet-controller.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Ethernet Controller Generic Binding + +maintainers: + - David S. Miller + +properties: + $nodename: + pattern: "^ethernet(@.*)?$" + + local-mac-address: + allOf: + - $ref: /schemas/types.yaml#definitions/uint8-array + - minItems: 6 + maxItems: 6 + description: + Specifies the MAC address that was assigned to the network device. + + mac-address: + allOf: + - $ref: /schemas/types.yaml#definitions/uint8-array + - minItems: 6 + maxItems: 6 + description: + Specifies the MAC address that was last used by the boot + program; should be used in cases where the MAC address assigned + to the device by the boot program is different from the + local-mac-address property. + + max-frame-size: + $ref: /schemas/types.yaml#definitions/uint32 + description: + Maximum transfer unit (IEEE defined MTU), rather than the + maximum frame size (there\'s contradiction in the Devicetree + Specification). + + max-speed: + $ref: /schemas/types.yaml#definitions/uint32 + description: + Specifies maximum speed in Mbit/s supported by the device. + + nvmem-cells: + maxItems: 1 + description: + Reference to an nvmem node for the MAC address + + nvmem-cells-names: + const: mac-address + + # Deprecated: phy-mode + phy-connection-type: + description: + Operation mode of the PHY interface + enum: + # There is not a standard bus between the MAC and the PHY, + # something proprietary is being used to embed the PHY in the + # MAC. + - internal + - mii + - gmii + - sgmii + - qsgmii + - tbi + - rev-mii + - rmii + + # RX and TX delays are added by the MAC when required + - rgmii + + # RGMII with internal RX and TX delays provided by the PHY, + # the MAC should not add the RX or TX delays in this case + - rgmii-id + + # RGMII with internal RX delay provided by the PHY, the MAC + # should not add an RX delay in this case + - rgmii-rxid + + # RGMII with internal TX delay provided by the PHY, the MAC + # should not add an TX delay in this case + - rgmii-txid + - rtbi + - smii + - xgmii + - trgmii + - 1000base-x + - 2500base-x + - rxaui + - xaui + + # 10GBASE-KR, XFI, SFI + - 10gbase-kr + - usxgmii + + # Deprecated: phy, phy-device + phy-handle: + $ref: /schemas/types.yaml#definitions/phandle + description: + Specifies a reference to a node representing a PHY device. + + rx-fifo-depth: + $ref: /schemas/types.yaml#definitions/uint32 + description: + The size of the controller\'s receive fifo in bytes. This is used + for components that can have configurable receive fifo sizes, + and is useful for determining certain configuration settings + such as flow control thresholds. + + tx-fifo-depth: + $ref: /schemas/types.yaml#definitions/uint32 + description: + The size of the controller\'s transmit fifo in bytes. This + is used for components that can have configurable fifo sizes. + + managed: + allOf: + - $ref: /schemas/types.yaml#definitions/string + - default: auto + enum: + - auto + - in-band-status + description: + Specifies the PHY management type. If auto is set and fixed-link + is not specified, it uses MDIO for management. + + fixed-link: + allOf: + - if: + type: array + then: + minItems: 1 + maxItems: 1 + items: + items: + - minimum: 0 + maximum: 31 + description: + Emulated PHY ID, choose any but unique to the all + specified fixed-links + + - enum: [0, 1] + description: + Duplex configuration. 0 for half duplex or 1 for + full duplex + + - enum: [10, 100, 1000] + description: + Link speed in Mbits/sec. + + - enum: [0, 1] + description: + Pause configuration. 0 for no pause, 1 for pause + + - enum: [0, 1] + description: + Asymmetric pause configuration. 0 for no asymmetric + pause, 1 for asymmetric pause + + + - if: + type: object + then: + properties: + speed: + allOf: + - $ref: /schemas/types.yaml#definitions/uint32 + - enum: [10, 100, 1000] + description: + Link speed. + + full-duplex: + $ref: /schemas/types.yaml#definitions/flag + description: + Indicates that full-duplex is used. When absent, half + duplex is assumed. + + asym-pause: + $ref: /schemas/types.yaml#definitions/flag + description: + Indicates that asym_pause should be enabled. + + link-gpios: + maxItems: 1 + description: + GPIO to determine if the link is up + + required: + - speed + +... diff --git a/Documentation/devicetree/bindings/net/ethernet.txt b/Documentation/devicetree/bindings/net/ethernet.txt index 5475682bf06e..5df413d01be2 100644 --- a/Documentation/devicetree/bindings/net/ethernet.txt +++ b/Documentation/devicetree/bindings/net/ethernet.txt @@ -1,68 +1 @@ -The following properties are common to the Ethernet controllers: - -NOTE: All 'phy*' properties documented below are Ethernet specific. For the -generic PHY 'phys' property, see -Documentation/devicetree/bindings/phy/phy-bindings.txt. - -- mac-address: array of 6 bytes, specifies the MAC address that was last used by - the boot program; should be used in cases where the MAC address assigned to - the device by the boot program is different from the "local-mac-address" - property; -- local-mac-address: array of 6 bytes, specifies the MAC address that was - assigned to the network device; -- nvmem-cells: phandle, reference to an nvmem node for the MAC address -- nvmem-cell-names: string, should be "mac-address" if nvmem is to be used -- max-speed: number, specifies maximum speed in Mbit/s supported by the device; -- max-frame-size: number, maximum transfer unit (IEEE defined MTU), rather than - the maximum frame size (there's contradiction in the Devicetree - Specification). -- phy-mode: string, operation mode of the PHY interface. This is now a de-facto - standard property; supported values are: - * "internal" (Internal means there is not a standard bus between the MAC and - the PHY, something proprietary is being used to embed the PHY in the MAC.) - * "mii" - * "gmii" - * "sgmii" - * "qsgmii" - * "tbi" - * "rev-mii" - * "rmii" - * "rgmii" (RX and TX delays are added by the MAC when required) - * "rgmii-id" (RGMII with internal RX and TX delays provided by the PHY, the - MAC should not add the RX or TX delays in this case) - * "rgmii-rxid" (RGMII with internal RX delay provided by the PHY, the MAC - should not add an RX delay in this case) - * "rgmii-txid" (RGMII with internal TX delay provided by the PHY, the MAC - should not add an TX delay in this case) - * "rtbi" - * "smii" - * "xgmii" - * "trgmii" - * "1000base-x", - * "2500base-x", - * "rxaui" - * "xaui" - * "10gbase-kr" (10GBASE-KR, XFI, SFI) - * "usxgmii" -- phy-connection-type: the same as "phy-mode" property but described in the - Devicetree Specification; -- phy-handle: phandle, specifies a reference to a node representing a PHY - device; this property is described in the Devicetree Specification and so - preferred; -- phy: the same as "phy-handle" property, not recommended for new bindings. -- phy-device: the same as "phy-handle" property, not recommended for new - bindings. -- rx-fifo-depth: the size of the controller's receive fifo in bytes. This - is used for components that can have configurable receive fifo sizes, - and is useful for determining certain configuration settings such as - flow control thresholds. -- tx-fifo-depth: the size of the controller's transmit fifo in bytes. This - is used for components that can have configurable fifo sizes. -- managed: string, specifies the PHY management type. Supported values are: - "auto", "in-band-status". "auto" is the default, it usess MDIO for - management if fixed-link is not specified. - -Child nodes of the Ethernet controller are typically the individual PHY devices -connected via the MDIO bus (sometimes the MDIO bus controller is separate). -They are described in the phy.txt file in this same directory. -For non-MDIO PHY management see fixed-link.txt. +This file has moved to ethernet-controller.yaml. diff --git a/Documentation/devicetree/bindings/net/fixed-link.txt b/Documentation/devicetree/bindings/net/fixed-link.txt index ec5d889fe3d8..5df413d01be2 100644 --- a/Documentation/devicetree/bindings/net/fixed-link.txt +++ b/Documentation/devicetree/bindings/net/fixed-link.txt @@ -1,54 +1 @@ -Fixed link Device Tree binding ------------------------------- - -Some Ethernet MACs have a "fixed link", and are not connected to a -normal MDIO-managed PHY device. For those situations, a Device Tree -binding allows to describe a "fixed link". - -Such a fixed link situation is described by creating a 'fixed-link' -sub-node of the Ethernet MAC device node, with the following -properties: - -* 'speed' (integer, mandatory), to indicate the link speed. Accepted - values are 10, 100 and 1000 -* 'full-duplex' (boolean, optional), to indicate that full duplex is - used. When absent, half duplex is assumed. -* 'pause' (boolean, optional), to indicate that pause should be - enabled. -* 'asym-pause' (boolean, optional), to indicate that asym_pause should - be enabled. -* 'link-gpios' ('gpio-list', optional), to indicate if a gpio can be read - to determine if the link is up. - -Old, deprecated 'fixed-link' binding: - -* A 'fixed-link' property in the Ethernet MAC node, with 5 cells, of the - form with the following accepted values: - - a: emulated PHY ID, choose any but but unique to the all specified - fixed-links, from 0 to 31 - - b: duplex configuration: 0 for half duplex, 1 for full duplex - - c: link speed in Mbits/sec, accepted values are: 10, 100 and 1000 - - d: pause configuration: 0 for no pause, 1 for pause - - e: asymmetric pause configuration: 0 for no asymmetric pause, 1 for - asymmetric pause - -Examples: - -ethernet@0 { - ... - fixed-link { - speed = <1000>; - full-duplex; - }; - ... -}; - -ethernet@1 { - ... - fixed-link { - speed = <1000>; - pause; - link-gpios = <&gpio0 12 GPIO_ACTIVE_HIGH>; - }; - ... -}; +This file has moved to ethernet-controller.yaml.