1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-C 1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
2 %YAML 1.2 2 %YAML 1.2
3 --- 3 ---
4 $id: http://devicetree.org/schemas/soc/qcom/qc 4 $id: http://devicetree.org/schemas/soc/qcom/qcom,smem.yaml#
5 $schema: http://devicetree.org/meta-schemas/co 5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6 6
7 title: Qualcomm Shared Memory Manager 7 title: Qualcomm Shared Memory Manager
8 8
9 maintainers: 9 maintainers:
10 - Andy Gross <agross@kernel.org> 10 - Andy Gross <agross@kernel.org>
11 - Bjorn Andersson <bjorn.andersson@linaro.org 11 - Bjorn Andersson <bjorn.andersson@linaro.org>
12 12
13 description: 13 description:
14 This binding describes the Qualcomm Shared M 14 This binding describes the Qualcomm Shared Memory Manager, a region of
15 reserved-memory used to share data between v 15 reserved-memory used to share data between various subsystems and OSes in
16 Qualcomm platforms. 16 Qualcomm platforms.
17 17
18 properties: 18 properties:
19 compatible: 19 compatible:
20 const: qcom,smem 20 const: qcom,smem
21 21
22 reg: 22 reg:
23 maxItems: 1 23 maxItems: 1
24 24
25 memory-region: 25 memory-region:
26 maxItems: 1 26 maxItems: 1
27 description: handle to memory reservation 27 description: handle to memory reservation for main SMEM memory region.
28 28
29 hwlocks: 29 hwlocks:
30 maxItems: 1 30 maxItems: 1
31 31
32 qcom,rpm-msg-ram: 32 qcom,rpm-msg-ram:
33 $ref: /schemas/types.yaml#/definitions/pha 33 $ref: /schemas/types.yaml#/definitions/phandle
34 description: handle to RPM message memory 34 description: handle to RPM message memory resource
35 35
36 no-map: true 36 no-map: true
37 37
38 required: 38 required:
39 - compatible 39 - compatible
40 - hwlocks 40 - hwlocks
41 41
42 oneOf: 42 oneOf:
43 - required: 43 - required:
44 - reg 44 - reg
45 - no-map 45 - no-map
46 - required: 46 - required:
47 - memory-region 47 - memory-region
48 48
49 additionalProperties: false 49 additionalProperties: false
50 50
51 examples: 51 examples:
52 - | 52 - |
53 reserved-memory { 53 reserved-memory {
54 #address-cells = <1>; 54 #address-cells = <1>;
55 #size-cells = <1>; 55 #size-cells = <1>;
56 ranges; 56 ranges;
57 57
58 smem@fa00000 { 58 smem@fa00000 {
59 compatible = "qcom,smem"; 59 compatible = "qcom,smem";
60 reg = <0xfa00000 0x200000>; 60 reg = <0xfa00000 0x200000>;
61 no-map; 61 no-map;
62 62
63 hwlocks = <&tcsr_mutex 3>; 63 hwlocks = <&tcsr_mutex 3>;
64 }; 64 };
65 }; 65 };
66 - | 66 - |
67 reserved-memory { 67 reserved-memory {
68 #address-cells = <1>; 68 #address-cells = <1>;
69 #size-cells = <1>; 69 #size-cells = <1>;
70 ranges; 70 ranges;
71 71
72 smem_region: smem@fa00000 { 72 smem_region: smem@fa00000 {
73 reg = <0xfa00000 0x200000>; 73 reg = <0xfa00000 0x200000>;
74 no-map; 74 no-map;
75 }; 75 };
76 }; 76 };
77 77
78 smem { 78 smem {
79 compatible = "qcom,smem"; 79 compatible = "qcom,smem";
80 80
81 memory-region = <&smem_region>; 81 memory-region = <&smem_region>;
82 qcom,rpm-msg-ram = <&rpm_msg_ram>; 82 qcom,rpm-msg-ram = <&rpm_msg_ram>;
83 83
84 hwlocks = <&tcsr_mutex 3>; 84 hwlocks = <&tcsr_mutex 3>;
85 }; 85 };
86 86
87 soc { 87 soc {
88 #address-cells = <1>; 88 #address-cells = <1>;
89 #size-cells = <1>; 89 #size-cells = <1>;
90 ranges; 90 ranges;
91 91
92 rpm_msg_ram: sram@fc428000 { 92 rpm_msg_ram: sram@fc428000 {
93 compatible = "qcom,rpm-msg-ram"; 93 compatible = "qcom,rpm-msg-ram";
94 reg = <0xfc428000 0x4000>; 94 reg = <0xfc428000 0x4000>;
95 }; 95 };
96 }; 96 };
97 97
98 ... 98 ...
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