110 lines
2.7 KiB
YAML
110 lines
2.7 KiB
YAML
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# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
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# Copyright 2018 Linaro Ltd.
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%YAML 1.2
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---
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$id: "http://devicetree.org/schemas/net/intel,ixp4xx-ethernet.yaml#"
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$schema: "http://devicetree.org/meta-schemas/core.yaml#"
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title: Intel IXP4xx ethernet
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allOf:
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- $ref: "ethernet-controller.yaml#"
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maintainers:
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- Linus Walleij <linus.walleij@linaro.org>
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description: |
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The Intel IXP4xx ethernet makes use of the IXP4xx NPE (Network
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Processing Engine) and the IXP4xx Queue Manager to process
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the ethernet frames. It can optionally contain an MDIO bus to
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talk to PHYs.
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properties:
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compatible:
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const: intel,ixp4xx-ethernet
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reg:
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maxItems: 1
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description: Ethernet MMIO address range
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queue-rx:
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$ref: '/schemas/types.yaml#/definitions/phandle-array'
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items:
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- items:
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- description: phandle to the RX queue node
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- description: RX queue instance to use
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description: phandle to the RX queue on the NPE
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queue-txready:
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$ref: '/schemas/types.yaml#/definitions/phandle-array'
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items:
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- items:
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- description: phandle to the TX READY queue node
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- description: TX READY queue instance to use
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description: phandle to the TX READY queue on the NPE
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phy-mode: true
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phy-handle: true
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intel,npe-handle:
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$ref: '/schemas/types.yaml#/definitions/phandle-array'
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items:
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- items:
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- description: phandle to the NPE this ethernet instance is using
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- description: the NPE instance to use
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description: phandle to the NPE this ethernet instance is using
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and the instance to use in the second cell
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mdio:
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$ref: mdio.yaml#
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unevaluatedProperties: false
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description: optional node for embedded MDIO controller
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required:
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- compatible
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- reg
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- queue-rx
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- queue-txready
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- intel,npe-handle
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additionalProperties: false
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examples:
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- |
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npe: npe@c8006000 {
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compatible = "intel,ixp4xx-network-processing-engine";
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reg = <0xc8006000 0x1000>, <0xc8007000 0x1000>, <0xc8008000 0x1000>;
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};
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ethernet@c8009000 {
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compatible = "intel,ixp4xx-ethernet";
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reg = <0xc8009000 0x1000>;
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queue-rx = <&qmgr 4>;
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queue-txready = <&qmgr 21>;
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intel,npe-handle = <&npe 1>;
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phy-mode = "rgmii";
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phy-handle = <&phy1>;
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};
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ethernet@c800c000 {
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compatible = "intel,ixp4xx-ethernet";
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reg = <0xc800c000 0x1000>;
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queue-rx = <&qmgr 3>;
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queue-txready = <&qmgr 20>;
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intel,npe-handle = <&npe 2>;
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phy-mode = "rgmii";
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phy-handle = <&phy2>;
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mdio {
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#address-cells = <1>;
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#size-cells = <0>;
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phy1: ethernet-phy@1 {
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reg = <1>;
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};
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phy2: ethernet-phy@2 {
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reg = <2>;
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};
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};
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};
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