Merge tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
[sfrench/cifs-2.6.git] / Documentation / devicetree / bindings / firmware / intel,ixp4xx-network-processing-engine.yaml
1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
2 # Copyright 2019 Linaro Ltd.
3 %YAML 1.2
4 ---
5 $id: "http://devicetree.org/schemas/firmware/intel-ixp4xx-network-processing-engine.yaml#"
6 $schema: "http://devicetree.org/meta-schemas/core.yaml#"
7
8 title: Intel IXP4xx Network Processing Engine
9
10 maintainers:
11   - Linus Walleij <linus.walleij@linaro.org>
12
13 description: |
14   On the IXP4xx SoCs, the Network Processing Engine (NPE) is a small
15   processor that can load a firmware to perform offloading of networking
16   and crypto tasks. It also manages the MDIO bus to the ethernet PHYs
17   on the IXP4xx platform. All IXP4xx platforms have three NPEs at
18   consecutive memory locations. They are all included in the same
19   device node since they are not independent of each other.
20
21 properties:
22   compatible:
23     oneOf:
24       - items:
25           - const: intel,ixp4xx-network-processing-engine
26
27   reg:
28     minItems: 3
29     maxItems: 3
30     items:
31       - description: NPE0 register range
32       - description: NPE1 register range
33       - description: NPE2 register range
34
35 required:
36   - compatible
37   - reg
38
39 examples:
40   - |
41     npe@c8006000 {
42          compatible = "intel,ixp4xx-network-processing-engine";
43          reg = <0xc8006000 0x1000>, <0xc8007000 0x1000>, <0xc8008000 0x1000>;
44     };