1 # SPDX-License-Identifier: GPL-2.0
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/devfreq/event/samsung,exynos-nocp.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Samsung Exynos NoC (Network on Chip) Probe
8
9 maintainers:
10 - Chanwoo Choi <cw00.choi@samsung.com>
11 - Krzysztof Kozlowski <krzk@kernel.org>
12
13 description: |
14 The Samsung Exynos542x SoC has a NoC (Network on Chip) Probe for NoC bus.
15 NoC provides the primitive values to get the performance data. The packets
16 that the Network on Chip (NoC) probes detects are transported over the
17 network infrastructure to observer units. You can configure probes to capture
18 packets with header or data on the data request response network, or as
19 traffic debug or statistic collectors. Exynos542x bus has multiple NoC probes
20 to provide bandwidth information about behavior of the SoC that you can use
21 while analyzing system performance.
22
23 properties:
24 compatible:
25 const: samsung,exynos5420-nocp
26
27 clock-names:
28 items:
29 - const: nocp
30
31 clocks:
32 maxItems: 1
33
34 reg:
35 maxItems: 1
36
37 required:
38 - compatible
39 - reg
40
41 additionalProperties: false
42
43 examples:
44 - |
45 nocp_mem0_0: nocp@10ca1000 {
46 compatible = "samsung,exynos5420-nocp";
47 reg = <0x10ca1000 0x200>;
48 };
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