xref: /freebsd/sys/contrib/device-tree/Bindings/interconnect/qcom,sdm845.yaml (revision 6be3386466ab79a84b48429ae66244f21526d3df) 
1# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/interconnect/qcom,sdm845.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Qualcomm SDM845 Network-On-Chip Interconnect
8
9maintainers:
10  - Georgi Djakov <georgi.djakov@linaro.org>
11
12description: |
13   SDM845 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,sdm845-aggre1-noc
27      - qcom,sdm845-aggre2-noc
28      - qcom,sdm845-config-noc
29      - qcom,sdm845-dc-noc
30      - qcom,sdm845-gladiator-noc
31      - qcom,sdm845-mem-noc
32      - qcom,sdm845-mmss-noc
33      - qcom,sdm845-system-noc
34
35  '#interconnect-cells':
36    const: 1
37
38  qcom,bcm-voters:
39    $ref: /schemas/types.yaml#/definitions/phandle-array
40    description: |
41      List of phandles to qcom,bcm-voter nodes that are required by
42      this interconnect to send RPMh commands.
43
44  qcom,bcm-voter-names:
45    $ref: /schemas/types.yaml#/definitions/string-array
46    description: |
47      Names for each of the qcom,bcm-voters specified.
48
49required:
50  - compatible
51  - reg
52  - '#interconnect-cells'
53  - qcom,bcm-voters
54
55additionalProperties: false
56
57examples:
58  - |
59      #include <dt-bindings/interconnect/qcom,sdm845.h>
60
61      mem_noc: interconnect@1380000 {
62             compatible = "qcom,sdm845-mem-noc";
63             reg = <0x01380000 0x27200>;
64             #interconnect-cells = <1>;
65             qcom,bcm-voters = <&apps_bcm_voter>;
66      };
67
68      mmss_noc: interconnect@1740000 {
69             compatible = "qcom,sdm845-mmss-noc";
70             reg = <0x01740000 0x1c1000>;
71             #interconnect-cells = <1>;
72             qcom,bcm-voter-names = "apps", "disp";
73             qcom,bcm-voters = <&apps_bcm_voter>, <&disp_bcm_voter>;
74      };
75