tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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
8title: Intel IXP4xx ethernet
9
10allOf:
11 - $ref: "ethernet-controller.yaml#"
12
13maintainers:
14 - Linus Walleij <linus.walleij@linaro.org>
15
16description: |
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
22properties:
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 maxItems: 1
33 description: phandle to the RX queue on the NPE
34
35 queue-txready:
36 $ref: '/schemas/types.yaml#/definitions/phandle-array'
37 maxItems: 1
38 description: phandle to the TX READY queue on the NPE
39
40 phy-mode: true
41
42 phy-handle: true
43
44 intel,npe-handle:
45 $ref: '/schemas/types.yaml#/definitions/phandle-array'
46 maxItems: 1
47 description: phandle to the NPE this ethernet instance is using
48 and the instance to use in the second cell
49
50 mdio:
51 type: object
52 $ref: "mdio.yaml#"
53 description: optional node for embedded MDIO controller
54
55required:
56 - compatible
57 - reg
58 - queue-rx
59 - queue-txready
60 - intel,npe-handle
61
62additionalProperties: false
63
64examples:
65 - |
66 npe: npe@c8006000 {
67 compatible = "intel,ixp4xx-network-processing-engine";
68 reg = <0xc8006000 0x1000>, <0xc8007000 0x1000>, <0xc8008000 0x1000>;
69 };
70
71 ethernet@c8009000 {
72 compatible = "intel,ixp4xx-ethernet";
73 reg = <0xc8009000 0x1000>;
74 queue-rx = <&qmgr 4>;
75 queue-txready = <&qmgr 21>;
76 intel,npe-handle = <&npe 1>;
77 phy-mode = "rgmii";
78 phy-handle = <&phy1>;
79 };
80
81 ethernet@c800c000 {
82 compatible = "intel,ixp4xx-ethernet";
83 reg = <0xc800c000 0x1000>;
84 queue-rx = <&qmgr 3>;
85 queue-txready = <&qmgr 20>;
86 intel,npe-handle = <&npe 2>;
87 phy-mode = "rgmii";
88 phy-handle = <&phy2>;
89
90 mdio {
91 #address-cells = <1>;
92 #size-cells = <0>;
93 phy1: ethernet-phy@1 {
94 reg = <1>;
95 };
96 phy2: ethernet-phy@2 {
97 reg = <2>;
98 };
99 };
100 };