# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) %YAML 1.2 --- $id: http://devicetree.org/schemas/net/dsa/qca8k.yaml# $schema: http://devicetree.org/meta-schemas/core.yaml# title: Qualcomm Atheros QCA83xx switch family maintainers: - John Crispin description: If the QCA8K switch is connect to an SoC's external mdio-bus, each subnode describing a port needs to have a valid phandle referencing the internal PHY it is connected to. This is because there is no N:N mapping of port and PHY ID. To declare the internal mdio-bus configuration, declare an MDIO node in the switch node and declare the phandle for the port, referencing the internal PHY it is connected to. In this config, an internal mdio-bus is registered and the MDIO master is used for communication. Mixed external and internal mdio-bus configurations are not supported by the hardware. properties: compatible: oneOf: - enum: - qca,qca8327 - qca,qca8328 - qca,qca8334 - qca,qca8337 description: | qca,qca8328: referenced as AR8328(N)-AK1(A/B) QFN 176 pin package qca,qca8327: referenced as AR8327(N)-AL1A DR-QFN 148 pin package qca,qca8334: referenced as QCA8334-AL3C QFN 88 pin package qca,qca8337: referenced as QCA8337N-AL3(B/C) DR-QFN 148 pin package reg: maxItems: 1 reset-gpios: description: GPIO to be used to reset the whole device maxItems: 1 qca,ignore-power-on-sel: $ref: /schemas/types.yaml#/definitions/flag description: Ignore power-on pin strapping to configure LED open-drain or EEPROM presence. This is needed for devices with incorrect configuration or when the OEM has decided not to use pin strapping and falls back to SW regs. qca,led-open-drain: $ref: /schemas/types.yaml#/definitions/flag description: Set LEDs to open-drain mode. This requires the qca,ignore-power-on-sel to be set, otherwise the driver will fail at probe. This is required if the OEM does not use pin strapping to set this mode and prefers to set it using SW regs. The pin strappings related to LED open-drain mode are B68 on the QCA832x and B49 on the QCA833x. mdio: $ref: /schemas/net/mdio.yaml# unevaluatedProperties: false description: Qca8k switch have an internal mdio to access switch port. If this is not present, the legacy mapping is used and the internal mdio access is used. With the legacy mapping the reg corresponding to the internal mdio is the switch reg with an offset of -1. $ref: "dsa.yaml#" patternProperties: "^(ethernet-)?ports$": type: object patternProperties: "^(ethernet-)?port@[0-6]$": type: object description: Ethernet switch ports $ref: dsa-port.yaml# properties: qca,sgmii-rxclk-falling-edge: $ref: /schemas/types.yaml#/definitions/flag description: Set the receive clock phase to falling edge. Mostly commonly used on the QCA8327 with CPU port 0 set to SGMII. qca,sgmii-txclk-falling-edge: $ref: /schemas/types.yaml#/definitions/flag description: Set the transmit clock phase to falling edge. qca,sgmii-enable-pll: $ref: /schemas/types.yaml#/definitions/flag description: For SGMII CPU port, explicitly enable PLL, TX and RX chain along with Signal Detection. On the QCA8327 this should not be enabled, otherwise the SGMII port will not initialize. When used on the QCA8337, revision 3 or greater, a warning will be displayed. When the CPU port is set to SGMII on the QCA8337, it is advised to set this unless a communication issue is observed. unevaluatedProperties: false oneOf: - required: - ports - required: - ethernet-ports required: - compatible - reg unevaluatedProperties: false examples: - | #include mdio { #address-cells = <1>; #size-cells = <0>; external_phy_port1: ethernet-phy@0 { reg = <0>; }; external_phy_port2: ethernet-phy@1 { reg = <1>; }; external_phy_port3: ethernet-phy@2 { reg = <2>; }; external_phy_port4: ethernet-phy@3 { reg = <3>; }; external_phy_port5: ethernet-phy@4 { reg = <4>; }; switch@10 { compatible = "qca,qca8337"; reset-gpios = <&gpio 42 GPIO_ACTIVE_LOW>; reg = <0x10>; ports { #address-cells = <1>; #size-cells = <0>; port@0 { reg = <0>; ethernet = <&gmac1>; phy-mode = "rgmii"; fixed-link { speed = <1000>; full-duplex; }; }; port@1 { reg = <1>; label = "lan1"; phy-handle = <&external_phy_port1>; }; port@2 { reg = <2>; label = "lan2"; phy-handle = <&external_phy_port2>; }; port@3 { reg = <3>; label = "lan3"; phy-handle = <&external_phy_port3>; }; port@4 { reg = <4>; label = "lan4"; phy-handle = <&external_phy_port4>; }; port@5 { reg = <5>; label = "wan"; phy-handle = <&external_phy_port5>; }; }; }; }; - | #include mdio { #address-cells = <1>; #size-cells = <0>; switch@10 { compatible = "qca,qca8337"; reset-gpios = <&gpio 42 GPIO_ACTIVE_LOW>; reg = <0x10>; ports { #address-cells = <1>; #size-cells = <0>; port@0 { reg = <0>; ethernet = <&gmac1>; phy-mode = "rgmii"; fixed-link { speed = <1000>; full-duplex; }; }; port@1 { reg = <1>; label = "lan1"; phy-mode = "internal"; phy-handle = <&internal_phy_port1>; }; port@2 { reg = <2>; label = "lan2"; phy-mode = "internal"; phy-handle = <&internal_phy_port2>; }; port@3 { reg = <3>; label = "lan3"; phy-mode = "internal"; phy-handle = <&internal_phy_port3>; }; port@4 { reg = <4>; label = "lan4"; phy-mode = "internal"; phy-handle = <&internal_phy_port4>; }; port@5 { reg = <5>; label = "wan"; phy-mode = "internal"; phy-handle = <&internal_phy_port5>; }; port@6 { reg = <0>; ethernet = <&gmac1>; phy-mode = "sgmii"; qca,sgmii-rxclk-falling-edge; fixed-link { speed = <1000>; full-duplex; }; }; }; mdio { #address-cells = <1>; #size-cells = <0>; internal_phy_port1: ethernet-phy@0 { reg = <0>; }; internal_phy_port2: ethernet-phy@1 { reg = <1>; }; internal_phy_port3: ethernet-phy@2 { reg = <2>; }; internal_phy_port4: ethernet-phy@3 { reg = <3>; }; internal_phy_port5: ethernet-phy@4 { reg = <4>; }; }; }; };