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
8 title: Intel IXP46x PTP Timer (TSYNC)
9
10 maintainers:
11 - Linus Walleij <linus.walleij@linaro.org>
12
13 description: |
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
18 properties:
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
37 required:
38 - compatible
39 - reg
40 - interrupts
41 - interrupt-names
42
43 additionalProperties: false
44
45 examples:
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 };
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