1 # SPDX-License-Identifier: GPL-2.0+
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/sram/allwinner,sun4i-a10-system-control.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Allwinner A10 System Control
8
9 maintainers:
10 - Chen-Yu Tsai <wens@csie.org>
11 - Maxime Ripard <mripard@kernel.org>
12
13 description:
14 The SRAM controller found on most Allwinner devices is represented
15 by a regular node for the SRAM controller itself, with sub-nodes
16 representing the SRAM handled by the SRAM controller.
17
18 properties:
19 "#address-cells":
20 const: 1
21
22 "#size-cells":
23 const: 1
24
25 compatible:
26 oneOf:
27 - enum:
28 - allwinner,sun4i-a10-sram-controller
29 - allwinner,sun50i-a64-sram-controller
30 deprecated: true
31 - enum:
32 - allwinner,sun4i-a10-system-control
33 - allwinner,sun5i-a13-system-control
34 - allwinner,sun8i-a23-system-control
35 - allwinner,sun8i-h3-system-control
36 - allwinner,sun20i-d1-system-control
37 - allwinner,sun50i-a64-system-control
38 - allwinner,sun50i-h5-system-control
39 - allwinner,sun50i-h616-system-control
40 - items:
41 - enum:
42 - allwinner,suniv-f1c100s-system-control
43 - allwinner,sun7i-a20-system-control
44 - allwinner,sun8i-r40-system-control
45 - const: allwinner,sun4i-a10-system-control
46 - items:
47 - const: allwinner,sun8i-v3s-system-control
48 - const: allwinner,sun8i-h3-system-control
49 - items:
50 - const: allwinner,sun50i-h6-system-control
51 - const: allwinner,sun50i-a64-system-control
52
53 reg:
54 maxItems: 1
55
56 ranges: true
57
58 patternProperties:
59 "^regulators@[0-9a-f]+$":
60 $ref: /schemas/regulator/allwinner,sun20i-d1-system-ldos.yaml#
61
62 "^sram@[a-f0-9]+":
63 $ref: /schemas/sram/sram.yaml#
64 unevaluatedProperties: false
65
66 patternProperties:
67 "^sram-section?@[a-f0-9]+$":
68 type: object
69 additionalProperties: false
70
71 properties:
72 reg: true
73
74 compatible:
75 oneOf:
76 - const: allwinner,sun4i-a10-sram-a3-a4
77 - const: allwinner,sun4i-a10-sram-c1
78 - const: allwinner,sun4i-a10-sram-d
79 - const: allwinner,sun50i-a64-sram-c
80 - items:
81 - enum:
82 - allwinner,sun5i-a13-sram-a3-a4
83 - allwinner,sun7i-a20-sram-a3-a4
84 - const: allwinner,sun4i-a10-sram-a3-a4
85 - items:
86 - enum:
87 - allwinner,sun5i-a13-sram-c1
88 - allwinner,sun7i-a20-sram-c1
89 - allwinner,sun8i-a23-sram-c1
90 - allwinner,sun8i-h3-sram-c1
91 - allwinner,sun8i-r40-sram-c1
92 - allwinner,sun50i-a64-sram-c1
93 - allwinner,sun50i-h5-sram-c1
94 - allwinner,sun50i-h6-sram-c1
95 - const: allwinner,sun4i-a10-sram-c1
96 - items:
97 - enum:
98 - allwinner,suniv-f1c100s-sram-d
99 - allwinner,sun5i-a13-sram-d
100 - allwinner,sun7i-a20-sram-d
101 - const: allwinner,sun4i-a10-sram-d
102 - items:
103 - const: allwinner,sun50i-h6-sram-c
104 - const: allwinner,sun50i-a64-sram-c
105
106 required:
107 - "#address-cells"
108 - "#size-cells"
109 - compatible
110 - reg
111
112 additionalProperties: false
113
114 examples:
115 - |
116 system-control@1c00000 {
117 compatible = "allwinner,sun4i-a10-system-control";
118 reg = <0x01c00000 0x30>;
119 #address-cells = <1>;
120 #size-cells = <1>;
121 ranges;
122
123 sram_a: sram@0 {
124 compatible = "mmio-sram";
125 reg = <0x00000000 0xc000>;
126 #address-cells = <1>;
127 #size-cells = <1>;
128 ranges = <0 0x00000000 0xc000>;
129
130 emac_sram: sram-section@8000 {
131 compatible = "allwinner,sun4i-a10-sram-a3-a4";
132 reg = <0x8000 0x4000>;
133 };
134 };
135 };
136
137 - |
138 syscon@3000000 {
139 compatible = "allwinner,sun20i-d1-system-control";
140 reg = <0x3000000 0x1000>;
141 ranges;
142 #address-cells = <1>;
143 #size-cells = <1>;
144
145 regulators@3000150 {
146 compatible = "allwinner,sun20i-d1-system-ldos";
147 reg = <0x3000150 0x4>;
148
149 reg_ldoa: ldoa {
150 regulator-min-microvolt = <1800000>;
151 regulator-max-microvolt = <1800000>;
152 };
153
154 reg_ldob: ldob {
155 regulator-name = "vcc-dram";
156 regulator-min-microvolt = <1500000>;
157 regulator-max-microvolt = <1500000>;
158 };
159 };
160 };
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