xref: /freebsd/sys/contrib/device-tree/Bindings/interconnect/qcom,sc7180.yaml (revision 43a5ec4eb41567cc92586503212743d89686d78f) 
1# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/interconnect/qcom,sc7180.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Qualcomm SC7180 Network-On-Chip Interconnect
8
9maintainers:
10  - Odelu Kukatla <okukatla@codeaurora.org>
11
12description: |
13   SC7180 interconnect providers support system bandwidth requirements through
14   RPMh hardware accelerators known as Bus Clock Manager (BCM). The provider is
15   able to communicate with the BCM through the Resource State Coordinator (RSC)
16   associated with each execution environment. Provider nodes must point to at
17   least one RPMh device child node pertaining to their RSC and each provider
18   can map to multiple RPMh resources.
19
20properties:
21  reg:
22    maxItems: 1
23
24  compatible:
25    enum:
26      - qcom,sc7180-aggre1-noc
27      - qcom,sc7180-aggre2-noc
28      - qcom,sc7180-camnoc-virt
29      - qcom,sc7180-compute-noc
30      - qcom,sc7180-config-noc
31      - qcom,sc7180-dc-noc
32      - qcom,sc7180-gem-noc
33      - qcom,sc7180-ipa-virt
34      - qcom,sc7180-mc-virt
35      - qcom,sc7180-mmss-noc
36      - qcom,sc7180-npu-noc
37      - qcom,sc7180-qup-virt
38      - qcom,sc7180-system-noc
39
40  '#interconnect-cells':
41    const: 1
42
43  qcom,bcm-voters:
44    $ref: /schemas/types.yaml#/definitions/phandle-array
45    description: |
46      List of phandles to qcom,bcm-voter nodes that are required by
47      this interconnect to send RPMh commands.
48
49  qcom,bcm-voter-names:
50    $ref: /schemas/types.yaml#/definitions/string-array
51    description: |
52      Names for each of the qcom,bcm-voters specified.
53
54required:
55  - compatible
56  - reg
57  - '#interconnect-cells'
58  - qcom,bcm-voters
59
60additionalProperties: false
61
62examples:
63  - |
64      #include <dt-bindings/interconnect/qcom,sc7180.h>
65
66      config_noc: interconnect@1500000 {
67            compatible = "qcom,sc7180-config-noc";
68            reg = <0x01500000 0x28000>;
69            #interconnect-cells = <1>;
70            qcom,bcm-voters = <&apps_bcm_voter>;
71      };
72
73      system_noc: interconnect@1620000 {
74            compatible = "qcom,sc7180-system-noc";
75            reg = <0x01620000 0x17080>;
76            #interconnect-cells = <1>;
77            qcom,bcm-voters = <&apps_bcm_voter>;
78      };
79
80      mmss_noc: interconnect@1740000 {
81            compatible = "qcom,sc7180-mmss-noc";
82            reg = <0x01740000 0x1c100>;
83            #interconnect-cells = <1>;
84            qcom,bcm-voters = <&apps_bcm_voter>;
85      };
86