1*4882a593Smuzhiyun# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
2*4882a593Smuzhiyun# Copyright 2019 Linaro Ltd.
3*4882a593Smuzhiyun%YAML 1.2
4*4882a593Smuzhiyun---
5*4882a593Smuzhiyun$id: "http://devicetree.org/schemas/firmware/intel,ixp4xx-network-processing-engine.yaml#"
6*4882a593Smuzhiyun$schema: "http://devicetree.org/meta-schemas/core.yaml#"
7*4882a593Smuzhiyun
8*4882a593Smuzhiyuntitle: Intel IXP4xx Network Processing Engine
9*4882a593Smuzhiyun
10*4882a593Smuzhiyunmaintainers:
11*4882a593Smuzhiyun  - Linus Walleij <linus.walleij@linaro.org>
12*4882a593Smuzhiyun
13*4882a593Smuzhiyundescription: |
14*4882a593Smuzhiyun  On the IXP4xx SoCs, the Network Processing Engine (NPE) is a small
15*4882a593Smuzhiyun  processor that can load a firmware to perform offloading of networking
16*4882a593Smuzhiyun  and crypto tasks. It also manages the MDIO bus to the ethernet PHYs
17*4882a593Smuzhiyun  on the IXP4xx platform. All IXP4xx platforms have three NPEs at
18*4882a593Smuzhiyun  consecutive memory locations. They are all included in the same
19*4882a593Smuzhiyun  device node since they are not independent of each other.
20*4882a593Smuzhiyun
21*4882a593Smuzhiyunproperties:
22*4882a593Smuzhiyun  compatible:
23*4882a593Smuzhiyun    oneOf:
24*4882a593Smuzhiyun      - items:
25*4882a593Smuzhiyun          - const: intel,ixp4xx-network-processing-engine
26*4882a593Smuzhiyun
27*4882a593Smuzhiyun  reg:
28*4882a593Smuzhiyun    items:
29*4882a593Smuzhiyun      - description: NPE0 register range
30*4882a593Smuzhiyun      - description: NPE1 register range
31*4882a593Smuzhiyun      - description: NPE2 register range
32*4882a593Smuzhiyun
33*4882a593Smuzhiyunrequired:
34*4882a593Smuzhiyun  - compatible
35*4882a593Smuzhiyun  - reg
36*4882a593Smuzhiyun
37*4882a593SmuzhiyunadditionalProperties: false
38*4882a593Smuzhiyun
39*4882a593Smuzhiyunexamples:
40*4882a593Smuzhiyun  - |
41*4882a593Smuzhiyun    npe@c8006000 {
42*4882a593Smuzhiyun         compatible = "intel,ixp4xx-network-processing-engine";
43*4882a593Smuzhiyun         reg = <0xc8006000 0x1000>, <0xc8007000 0x1000>, <0xc8008000 0x1000>;
44*4882a593Smuzhiyun    };
45*4882a593Smuzhiyun...
46