1# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
2# Copyright 2018 Linaro Ltd.
3%YAML 1.2
4---
5$id: "http://devicetree.org/schemas/net/intel,ixp46x-ptp-timer.yaml#"
6$schema: "http://devicetree.org/meta-schemas/core.yaml#"
7
8title: Intel IXP46x PTP Timer (TSYNC)
9
10maintainers:
11  - Linus Walleij <linus.walleij@linaro.org>
12
13description: |
14  The Intel IXP46x PTP timer is known in the manual as IEEE1588 Hardware
15  Assist and Time Synchronization Hardware Assist TSYNC provides a PTP
16  timer. It exists in the Intel IXP45x and IXP46x XScale SoCs.
17
18properties:
19  compatible:
20    const: intel,ixp46x-ptp-timer
21
22  reg:
23    maxItems: 1
24
25  interrupts:
26    items:
27      - description: Interrupt to trigger master mode snapshot from the
28          PRP timer, usually a GPIO interrupt.
29      - description: Interrupt to trigger slave mode snapshot from the
30          PRP timer, usually a GPIO interrupt.
31
32  interrupt-names:
33    items:
34      - const: master
35      - const: slave
36
37required:
38  - compatible
39  - reg
40  - interrupts
41  - interrupt-names
42
43additionalProperties: false
44
45examples:
46  - |
47    #include <dt-bindings/interrupt-controller/irq.h>
48    ptp-timer@c8010000 {
49        compatible = "intel,ixp46x-ptp-timer";
50        reg = <0xc8010000 0x1000>;
51        interrupt-parent = <&gpio0>;
52        interrupts = <8 IRQ_TYPE_EDGE_FALLING>, <7 IRQ_TYPE_EDGE_FALLING>;
53        interrupt-names = "master", "slave";
54    };
55