xref: /linux/Documentation/devicetree/bindings/arm/atmel,at91sam9260-pit.yaml (revision 31b43c079f9aa55754c20404a42bca9a49e01f60) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/arm/atmel,at91sam9260-pit.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Atmel AT91SAM9260 Periodic Interval Timer (PIT)
8
9maintainers:
10  - Nicolas Ferre <nicolas.ferre@microchip.com>
11  - Claudiu Beznea <claudiu.beznea@tuxon.dev>
12
13description:
14  The Periodic Interval Timer (PIT) is part of the System Controller of
15  various Microchip 32-bit ARM-based SoCs (formerly Atmel AT91 series).
16  It is a simple down-counter timer used mainly as the kernel tick source.
17  The PIT is clocked from the slow clock and shares a single IRQ line with
18  other System Controller peripherals.
19
20properties:
21  compatible:
22    const: atmel,at91sam9260-pit
23
24  reg:
25    maxItems: 1
26
27  interrupts:
28    maxItems: 1
29
30  clocks:
31    maxItems: 1
32
33required:
34  - compatible
35  - reg
36  - interrupts
37
38unevaluatedProperties: false
39
40examples:
41  - |
42    #include <dt-bindings/interrupt-controller/irq.h>
43    timer@fffffd30 {
44        compatible = "atmel,at91sam9260-pit";
45        reg = <0xfffffd30 0x10>;
46        interrupts = <1 IRQ_TYPE_LEVEL_HIGH>;
47        clocks = <&clk32k>;
48    };
49...
50