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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";
+ };