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# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
# Copyright 2018 Linaro Ltd.
%YAML 1.2
---
$id: "http://devicetree.org/schemas/net/intel,ixp46x-ptp-timer.yaml#"
$schema: "http://devicetree.org/meta-schemas/core.yaml#"
title: Intel IXP46x PTP Timer (TSYNC)
maintainers:
- Linus Walleij <linus.walleij@linaro.org>
description: |
The Intel IXP46x PTP timer is known in the manual as IEEE1588 Hardware
Assist and Time Synchronization Hardware Assist TSYNC provides a PTP
timer. It exists in the Intel IXP45x and IXP46x XScale SoCs.
properties:
compatible:
const: intel,ixp46x-ptp-timer
reg:
maxItems: 1
interrupts:
items:
- description: Interrupt to trigger master mode snapshot from the
PRP timer, usually a GPIO interrupt.
- description: Interrupt to trigger slave mode snapshot from the
PRP timer, usually a GPIO interrupt.
interrupt-names:
items:
- const: master
- const: slave
required:
- compatible
- reg
- interrupts
- interrupt-names
additionalProperties: false
examples:
- |
#include <dt-bindings/interrupt-controller/irq.h>
ptp-timer@c8010000 {
compatible = "intel,ixp46x-ptp-timer";
reg = <0xc8010000 0x1000>;
interrupt-parent = <&gpio0>;
interrupts = <8 IRQ_TYPE_EDGE_FALLING>, <7 IRQ_TYPE_EDGE_FALLING>;
interrupt-names = "master", "slave";
};
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