1 # SPDX-License-Identifier: GPL-2.0-only OR BSD
2 # Copyright 2021, Arm Ltd
3 %YAML 1.2
4 ---
5 $id: http://devicetree.org/schemas/arm/arm,tra
6 $schema: http://devicetree.org/meta-schemas/co
7
8 title: ARM Trace Buffer Extensions
9
10 maintainers:
11 - Anshuman Khandual <anshuman.khandual@arm.co
12
13 description: |
14 Arm Trace Buffer Extension (TRBE) is a per C
15 for storing trace generated on the CPU to me
16 accessed via CPU system registers. The softw
17 if it is permitted to use the component by c
18 TRBIDR register.
19
20 properties:
21 $nodename:
22 const: trbe
23
24 compatible:
25 items:
26 - const: arm,trace-buffer-extension
27
28 interrupts:
29 description: |
30 Exactly 1 PPI must be listed. For heter
31 TRBE is only supported on a subset of t
32 the arm,gic-v3 binding for details on d
33 maxItems: 1
34
35 required:
36 - compatible
37 - interrupts
38
39 additionalProperties: false
40
41 examples:
42
43 - |
44 #include <dt-bindings/interrupt-controller/
45
46 trbe {
47 compatible = "arm,trace-buffer-extension"
48 interrupts = <GIC_PPI 15 IRQ_TYPE_LEVEL_H
49 };
50 ...
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