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 7title: Samsung Exynos NoC (Network on Chip) Probe 8 9maintainers: 10 - Chanwoo Choi <cw00.choi@samsung.com> 11 - Krzysztof Kozlowski <krzk@kernel.org> 12 13description: | 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 23properties: 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 37required: 38 - compatible 39 - reg 40 41additionalProperties: false 42 43examples: 44 - | 45 nocp_mem0_0: nocp@10ca1000 { 46 compatible = "samsung,exynos5420-nocp"; 47 reg = <0x10ca1000 0x200>; 48 }; 49