xref: /freebsd/sys/contrib/device-tree/Bindings/interconnect/qcom,milos-rpmh.yaml (revision 833e5d42ab135b0238e61c5b3c19b8619677cbfa) 
1# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/interconnect/qcom,milos-rpmh.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Qualcomm RPMh Network-On-Chip Interconnect on Milos SoC
8
9maintainers:
10  - Luca Weiss <luca.weiss@fairphone.com>
11
12description: |
13  RPMh 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
20  See also: include/dt-bindings/interconnect/qcom,milos-rpmh.h
21
22properties:
23  compatible:
24    enum:
25      - qcom,milos-aggre1-noc
26      - qcom,milos-aggre2-noc
27      - qcom,milos-clk-virt
28      - qcom,milos-cnoc-cfg
29      - qcom,milos-cnoc-main
30      - qcom,milos-gem-noc
31      - qcom,milos-lpass-ag-noc
32      - qcom,milos-mc-virt
33      - qcom,milos-mmss-noc
34      - qcom,milos-nsp-noc
35      - qcom,milos-pcie-anoc
36      - qcom,milos-system-noc
37
38  reg:
39    maxItems: 1
40
41  clocks:
42    minItems: 1
43    maxItems: 2
44
45required:
46  - compatible
47
48allOf:
49  - $ref: qcom,rpmh-common.yaml#
50  - if:
51      properties:
52        compatible:
53          contains:
54            enum:
55              - qcom,milos-clk-virt
56              - qcom,milos-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,milos-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,milos-aggre1-noc
83    then:
84      properties:
85        clocks:
86          items:
87            - description: aggre USB3 PRIM AXI clock
88            - description: aggre UFS PHY AXI clock
89
90  - if:
91      properties:
92        compatible:
93          contains:
94            enum:
95              - qcom,milos-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,milos-aggre1-noc
108              - qcom,milos-aggre2-noc
109              - qcom,milos-pcie-anoc
110    then:
111      required:
112        - clocks
113    else:
114      properties:
115        clocks: false
116
117unevaluatedProperties: false
118
119examples:
120  - |
121    #include <dt-bindings/clock/qcom,milos-gcc.h>
122
123    interconnect-0 {
124        compatible = "qcom,milos-clk-virt";
125        #interconnect-cells = <2>;
126        qcom,bcm-voters = <&apps_bcm_voter>;
127    };
128
129    interconnect@16e0000 {
130        compatible = "qcom,milos-aggre1-noc";
131        reg = <0x016e0000 0x16400>;
132        #interconnect-cells = <2>;
133        clocks = <&gcc GCC_AGGRE_USB3_PRIM_AXI_CLK>,
134                 <&gcc GCC_AGGRE_UFS_PHY_AXI_CLK>;
135        qcom,bcm-voters = <&apps_bcm_voter>;
136    };
137