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# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
# Copyright 2019 Linaro Ltd.
%YAML 1.2
---
$id: "http://devicetree.org/schemas/firmware/intel-ixp4xx-network-processing-engine.yaml#"
$schema: "http://devicetree.org/meta-schemas/core.yaml#"
title: Intel IXP4xx Network Processing Engine
maintainers:
- Linus Walleij <linus.walleij@linaro.org>
description: |
On the IXP4xx SoCs, the Network Processing Engine (NPE) is a small
processor that can load a firmware to perform offloading of networking
and crypto tasks. It also manages the MDIO bus to the ethernet PHYs
on the IXP4xx platform. All IXP4xx platforms have three NPEs at
consecutive memory locations. They are all included in the same
device node since they are not independent of each other.
properties:
compatible:
oneOf:
- items:
- const: intel,ixp4xx-network-processing-engine
reg:
minItems: 3
maxItems: 3
items:
- description: NPE0 register range
- description: NPE1 register range
- description: NPE2 register range
required:
- compatible
- reg
examples:
- |
npe@c8006000 {
compatible = "intel,ixp4xx-network-processing-engine";
reg = <0xc8006000 0x1000>, <0xc8007000 0x1000>, <0xc8008000 0x1000>;
};
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