| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 1 | # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) |
| 2 | # Copyright 2018 Linaro Ltd. |
| 3 | %YAML 1.2 |
| 4 | --- |
| 5 | $id: http://devicetree.org/schemas/net/intel,ixp4xx-ethernet.yaml# |
| 6 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 7 | |
| 8 | title: Intel IXP4xx ethernet |
| 9 | |
| 10 | allOf: |
| 11 | - $ref: ethernet-controller.yaml# |
| 12 | |
| 13 | maintainers: |
| 14 | - Linus Walleij <linus.walleij@linaro.org> |
| 15 | |
| 16 | description: | |
| 17 | The Intel IXP4xx ethernet makes use of the IXP4xx NPE (Network |
| 18 | Processing Engine) and the IXP4xx Queue Manager to process |
| 19 | the ethernet frames. It can optionally contain an MDIO bus to |
| 20 | talk to PHYs. |
| 21 | |
| 22 | properties: |
| 23 | compatible: |
| 24 | const: intel,ixp4xx-ethernet |
| 25 | |
| 26 | reg: |
| 27 | maxItems: 1 |
| 28 | description: Ethernet MMIO address range |
| 29 | |
| 30 | queue-rx: |
| 31 | $ref: /schemas/types.yaml#/definitions/phandle-array |
| 32 | items: |
| 33 | - items: |
| 34 | - description: phandle to the RX queue node |
| 35 | - description: RX queue instance to use |
| 36 | description: phandle to the RX queue on the NPE |
| 37 | |
| 38 | queue-txready: |
| 39 | $ref: /schemas/types.yaml#/definitions/phandle-array |
| 40 | items: |
| 41 | - items: |
| 42 | - description: phandle to the TX READY queue node |
| 43 | - description: TX READY queue instance to use |
| 44 | description: phandle to the TX READY queue on the NPE |
| 45 | |
| 46 | phy-mode: true |
| 47 | |
| 48 | phy-handle: true |
| 49 | |
| 50 | intel,npe-handle: |
| 51 | $ref: /schemas/types.yaml#/definitions/phandle-array |
| 52 | items: |
| 53 | - items: |
| 54 | - description: phandle to the NPE this ethernet instance is using |
| 55 | - description: the NPE instance to use |
| 56 | description: phandle to the NPE this ethernet instance is using |
| 57 | and the instance to use in the second cell |
| 58 | |
| 59 | mdio: |
| 60 | $ref: mdio.yaml# |
| 61 | unevaluatedProperties: false |
| 62 | description: optional node for embedded MDIO controller |
| 63 | |
| 64 | required: |
| 65 | - compatible |
| 66 | - reg |
| 67 | - queue-rx |
| 68 | - queue-txready |
| 69 | - intel,npe-handle |
| 70 | |
| 71 | additionalProperties: false |
| 72 | |
| 73 | examples: |
| 74 | - | |
| 75 | npe: npe@c8006000 { |
| 76 | compatible = "intel,ixp4xx-network-processing-engine"; |
| 77 | reg = <0xc8006000 0x1000>, <0xc8007000 0x1000>, <0xc8008000 0x1000>; |
| 78 | }; |
| 79 | |
| 80 | ethernet@c8009000 { |
| 81 | compatible = "intel,ixp4xx-ethernet"; |
| 82 | reg = <0xc8009000 0x1000>; |
| 83 | queue-rx = <&qmgr 4>; |
| 84 | queue-txready = <&qmgr 21>; |
| 85 | intel,npe-handle = <&npe 1>; |
| 86 | phy-mode = "rgmii"; |
| 87 | phy-handle = <&phy1>; |
| 88 | }; |
| 89 | |
| 90 | ethernet@c800c000 { |
| 91 | compatible = "intel,ixp4xx-ethernet"; |
| 92 | reg = <0xc800c000 0x1000>; |
| 93 | queue-rx = <&qmgr 3>; |
| 94 | queue-txready = <&qmgr 20>; |
| 95 | intel,npe-handle = <&npe 2>; |
| 96 | phy-mode = "rgmii"; |
| 97 | phy-handle = <&phy2>; |
| 98 | |
| 99 | mdio { |
| 100 | #address-cells = <1>; |
| 101 | #size-cells = <0>; |
| 102 | phy1: ethernet-phy@1 { |
| 103 | reg = <1>; |
| 104 | }; |
| 105 | phy2: ethernet-phy@2 { |
| 106 | reg = <2>; |
| 107 | }; |
| 108 | }; |
| 109 | }; |