1# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/interconnect/qcom,rpmh.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Qualcomm RPMh Network-On-Chip Interconnect
8
9maintainers:
10  - Georgi Djakov <georgi.djakov@linaro.org>
11  - Odelu Kukatla <okukatla@codeaurora.org>
12
13description: |
14   RPMh interconnect providers support system bandwidth requirements through
15   RPMh hardware accelerators known as Bus Clock Manager (BCM). The provider is
16   able to communicate with the BCM through the Resource State Coordinator (RSC)
17   associated with each execution environment. Provider nodes must point to at
18   least one RPMh device child node pertaining to their RSC and each provider
19   can map to multiple RPMh resources.
20
21properties:
22  reg:
23    maxItems: 1
24
25  compatible:
26    enum:
27      - qcom,sc7180-aggre1-noc
28      - qcom,sc7180-aggre2-noc
29      - qcom,sc7180-camnoc-virt
30      - qcom,sc7180-compute-noc
31      - qcom,sc7180-config-noc
32      - qcom,sc7180-dc-noc
33      - qcom,sc7180-gem-noc
34      - qcom,sc7180-ipa-virt
35      - qcom,sc7180-mc-virt
36      - qcom,sc7180-mmss-noc
37      - qcom,sc7180-npu-noc
38      - qcom,sc7180-qup-virt
39      - qcom,sc7180-system-noc
40      - qcom,sdm845-aggre1-noc
41      - qcom,sdm845-aggre2-noc
42      - qcom,sdm845-config-noc
43      - qcom,sdm845-dc-noc
44      - qcom,sdm845-gladiator-noc
45      - qcom,sdm845-mem-noc
46      - qcom,sdm845-mmss-noc
47      - qcom,sdm845-system-noc
48
49  '#interconnect-cells':
50    const: 1
51
52  qcom,bcm-voters:
53    $ref: /schemas/types.yaml#/definitions/phandle-array
54    description: |
55      List of phandles to qcom,bcm-voter nodes that are required by
56      this interconnect to send RPMh commands.
57
58  qcom,bcm-voter-names:
59    $ref: /schemas/types.yaml#/definitions/string-array
60    description: |
61      Names for each of the qcom,bcm-voters specified.
62
63required:
64  - compatible
65  - reg
66  - '#interconnect-cells'
67  - qcom,bcm-voters
68
69additionalProperties: false
70
71examples:
72  - |
73      #include <dt-bindings/interconnect/qcom,sdm845.h>
74
75      mem_noc: interconnect@1380000 {
76             compatible = "qcom,sdm845-mem-noc";
77             reg = <0x01380000 0x27200>;
78             #interconnect-cells = <1>;
79             qcom,bcm-voters = <&apps_bcm_voter>;
80      };
81
82      mmss_noc: interconnect@1740000 {
83             compatible = "qcom,sdm845-mmss-noc";
84             reg = <0x01740000 0x1c1000>;
85             #interconnect-cells = <1>;
86             qcom,bcm-voter-names = "apps", "disp";
87             qcom,bcm-voters = <&apps_bcm_voter>, <&disp_bcm_voter>;
88      };
89