xref: /linux/Documentation/devicetree/bindings/interconnect/qcom,sm8550-rpmh.yaml (revision 34dc1baba215b826e454b8d19e4f24adbeb7d00d) 
1# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/interconnect/qcom,sm8550-rpmh.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Qualcomm RPMh Network-On-Chip Interconnect on SM8550
8
9maintainers:
10  - Abel Vesa <abel.vesa@linaro.org>
11  - Neil Armstrong <neil.armstrong@linaro.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
21  See also:: include/dt-bindings/interconnect/qcom,sm8550-rpmh.h
22
23properties:
24  compatible:
25    enum:
26      - qcom,sm8550-aggre1-noc
27      - qcom,sm8550-aggre2-noc
28      - qcom,sm8550-clk-virt
29      - qcom,sm8550-cnoc-main
30      - qcom,sm8550-config-noc
31      - qcom,sm8550-gem-noc
32      - qcom,sm8550-lpass-ag-noc
33      - qcom,sm8550-lpass-lpiaon-noc
34      - qcom,sm8550-lpass-lpicx-noc
35      - qcom,sm8550-mc-virt
36      - qcom,sm8550-mmss-noc
37      - qcom,sm8550-nsp-noc
38      - qcom,sm8550-pcie-anoc
39      - qcom,sm8550-system-noc
40
41  reg:
42    maxItems: 1
43
44  clocks:
45    minItems: 1
46    maxItems: 2
47
48allOf:
49  - $ref: qcom,rpmh-common.yaml#
50  - if:
51      properties:
52        compatible:
53          contains:
54            enum:
55              - qcom,sm8550-clk-virt
56              - qcom,sm8550-mc-virt
57    then:
58      properties:
59        reg: false
60    else:
61      required:
62        - reg
63
64  - if:
65      properties:
66        compatible:
67          contains:
68            enum:
69              - qcom,sm8550-pcie-anoc
70    then:
71      properties:
72        clocks:
73          items:
74            - description: aggre-NOC PCIe AXI clock
75            - description: cfg-NOC PCIe a-NOC AHB clock
76
77  - if:
78      properties:
79        compatible:
80          contains:
81            enum:
82              - qcom,sm8550-aggre1-noc
83    then:
84      properties:
85        clocks:
86          items:
87            - description: aggre UFS PHY AXI clock
88            - description: aggre USB3 PRIM AXI clock
89
90  - if:
91      properties:
92        compatible:
93          contains:
94            enum:
95              - qcom,sm8550-aggre2-noc
96    then:
97      properties:
98        clocks:
99          items:
100            - description: RPMH CC IPA clock
101
102  - if:
103      properties:
104        compatible:
105          contains:
106            enum:
107              - qcom,sm8550-aggre1-noc
108              - qcom,sm8550-aggre2-noc
109              - qcom,sm8550-pcie-anoc
110    then:
111      required:
112        - clocks
113    else:
114      properties:
115        clocks: false
116
117required:
118  - compatible
119
120unevaluatedProperties: false
121
122examples:
123  - |
124    #include <dt-bindings/clock/qcom,sm8550-gcc.h>
125
126    clk_virt: interconnect-0 {
127      compatible = "qcom,sm8550-clk-virt";
128      #interconnect-cells = <2>;
129      qcom,bcm-voters = <&apps_bcm_voter>;
130    };
131
132    aggre1_noc: interconnect@16e0000 {
133      compatible = "qcom,sm8550-aggre1-noc";
134      reg = <0x016e0000 0x14400>;
135      #interconnect-cells = <2>;
136      clocks = <&gcc GCC_AGGRE_UFS_PHY_AXI_CLK>,
137               <&gcc GCC_AGGRE_USB3_PRIM_AXI_CLK>;
138      qcom,bcm-voters = <&apps_bcm_voter>;
139    };
140