1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-C
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/remoteproc/
5 $schema: http://devicetree.org/meta-schemas/co
6
7 title: Qualcomm Resource Power Manager (RPM) P
8
9 maintainers:
10 - Bjorn Andersson <andersson@kernel.org>
11 - Konrad Dybcio <konradybcio@kernel.org>
12 - Stephan Gerhold <stephan@gerhold.net>
13
14 description: |
15 Resource Power Manager (RPM) subsystem found
16
17 +---------------------------
18 | RPM subsystem (qcom,
19 |
20 reset | +---------------+ +---
21 --------->| | | MP
22 IPC interrupts | | ARM Cortex-M3 |--- +---
23 ----------------->| | | |
24 | +---------------+ |------
25 | +---------------+ |
26 | | Code RAM |--| +---
27 | +---------------+ | |
28 | +---------------+ |--|
29 | | Data RAM |--| |
30 | +---------------+ | +---
31 +--------------------|------
32 v
33 NoC
34
35 The firmware running on the processor inside
36 component in the system to vote for state of
37 clocks, regulators and bus frequencies. It i
38 communication interfaces that are described
39
40 +------------------------------+
41 | ARM Cortex-M3 |
42 | |
43 | +--------------------------+ |
44 | | RPM firmware | |
45 IPC IRQ 0 | | +----------------------+ | |
46 -------------->| SMD server |<----
47 | | | +--------------+ | | |
48 | | | | rpm_requests | ... | | |
49 | | | +--------------+ | | |
50 IPC IRQ 1 | | +----------------------+ | |
51 -------------->| MPM virtualization |<----
52 | | +----------------------+ | |
53 | | ... | | |
54 | +--------------------|-----+ |
55 +----------------------|-------+
56 v
57 +--------------+
58 | MPM Hardware |
59 +--------------+
60
61 The services provided by the firmware are on
62 has been loaded and the processor has been r
63 happens early in the boot process before the
64
65 properties:
66 compatible:
67 items:
68 - enum:
69 - qcom,apq8084-rpm-proc
70 - qcom,ipq6018-rpm-proc
71 - qcom,ipq9574-rpm-proc
72 - qcom,mdm9607-rpm-proc
73 - qcom,msm8226-rpm-proc
74 - qcom,msm8610-rpm-proc
75 - qcom,msm8909-rpm-proc
76 - qcom,msm8916-rpm-proc
77 - qcom,msm8917-rpm-proc
78 - qcom,msm8936-rpm-proc
79 - qcom,msm8937-rpm-proc
80 - qcom,msm8952-rpm-proc
81 - qcom,msm8953-rpm-proc
82 - qcom,msm8974-rpm-proc
83 - qcom,msm8976-rpm-proc
84 - qcom,msm8994-rpm-proc
85 - qcom,msm8996-rpm-proc
86 - qcom,msm8998-rpm-proc
87 - qcom,qcm2290-rpm-proc
88 - qcom,qcs404-rpm-proc
89 - qcom,sdm660-rpm-proc
90 - qcom,sm6115-rpm-proc
91 - qcom,sm6125-rpm-proc
92 - qcom,sm6375-rpm-proc
93 - const: qcom,rpm-proc
94
95 smd-edge:
96 $ref: /schemas/remoteproc/qcom,smd-edge.ya
97 description:
98 Qualcomm Shared Memory subnode which rep
99 channels and devices related to the RPM
100
101 glink-edge:
102 $ref: /schemas/remoteproc/qcom,glink-rpm-e
103 description:
104 Qualcomm G-Link subnode which represents
105 channels and devices related to the RPM
106
107 interrupt-controller:
108 type: object
109 $ref: /schemas/interrupt-controller/qcom,m
110 description:
111 MSM Power Manager (MPM) interrupt contro
112 when the system is asleep.
113
114 master-stats:
115 $ref: /schemas/soc/qcom/qcom,rpm-master-st
116 description:
117 Subsystem-level low-power mode statistic
118
119 required:
120 - compatible
121
122 oneOf:
123 - required:
124 - smd-edge
125 - required:
126 - glink-edge
127
128 additionalProperties: false
129
130 examples:
131 # SMD
132 - |
133 #include <dt-bindings/interrupt-controller
134 #include <dt-bindings/interrupt-controller
135
136 remoteproc {
137 compatible = "qcom,msm8916-rpm-proc", "q
138
139 smd-edge {
140 interrupts = <GIC_SPI 168 IRQ_TYPE_EDG
141 qcom,ipc = <&apcs 8 0>;
142 qcom,smd-edge = <15>;
143
144 rpm-requests {
145 compatible = "qcom,rpm-msm8916", "qc
146 qcom,smd-channels = "rpm_requests";
147 /* ... */
148 };
149 };
150 };
151 # GLINK
152 - |
153 #include <dt-bindings/interrupt-controller
154 #include <dt-bindings/interrupt-controller
155
156 remoteproc {
157 compatible = "qcom,qcm2290-rpm-proc", "q
158
159 glink-edge {
160 compatible = "qcom,glink-rpm";
161 interrupts = <GIC_SPI 194 IRQ_TYPE_EDG
162 qcom,rpm-msg-ram = <&rpm_msg_ram>;
163 mboxes = <&apcs_glb 0>;
164
165 rpm-requests {
166 compatible = "qcom,rpm-qcm2290", "qc
167 qcom,glink-channels = "rpm_requests"
168 /* ... */
169 };
170 };
171 };
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