1 // SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
2 /*
3 * Copyright (c) STMicroelectronics 2019 - All Rights Reserved
4 * Copyright (c) 2020 Engicam srl
5 * Copyright (c) 2020 Amarula Solutions(India)
6 */
7
8 / {
9 compatible = "engicam,icore-stm32mp1", "st,stm32mp157";
10
11 memory@c0000000 {
12 device_type = "memory";
13 reg = <0xc0000000 0x20000000>;
14 };
15
16 reserved-memory {
17 #address-cells = <1>;
18 #size-cells = <1>;
19 ranges;
20
21 mcuram2: mcuram2@10000000 {
22 compatible = "shared-dma-pool";
23 reg = <0x10000000 0x40000>;
24 no-map;
25 };
26
27 vdev0vring0: vdev0vring0@10040000 {
28 compatible = "shared-dma-pool";
29 reg = <0x10040000 0x1000>;
30 no-map;
31 };
32
33 vdev0vring1: vdev0vring1@10041000 {
34 compatible = "shared-dma-pool";
35 reg = <0x10041000 0x1000>;
36 no-map;
37 };
38
39 vdev0buffer: vdev0buffer@10042000 {
40 compatible = "shared-dma-pool";
41 reg = <0x10042000 0x4000>;
42 no-map;
43 };
44
45 mcuram: mcuram@30000000 {
46 compatible = "shared-dma-pool";
47 reg = <0x30000000 0x40000>;
48 no-map;
49 };
50
51 retram: retram@38000000 {
52 compatible = "shared-dma-pool";
53 reg = <0x38000000 0x10000>;
54 no-map;
55 };
56 };
57
58 vddcore: regulator-vddcore {
59 compatible = "regulator-fixed";
60 regulator-name = "vddcore";
61 regulator-min-microvolt = <1200000>;
62 regulator-max-microvolt = <1200000>;
63 regulator-always-on;
64 };
65
66 vdd: regulator-vdd {
67 compatible = "regulator-fixed";
68 regulator-name = "vdd";
69 regulator-min-microvolt = <3300000>;
70 regulator-max-microvolt = <3300000>;
71 regulator-always-on;
72 };
73
74 vdd_usb: regulator-vdd-usb {
75 compatible = "regulator-fixed";
76 regulator-name = "vdd_usb";
77 regulator-min-microvolt = <3300000>;
78 regulator-max-microvolt = <3300000>;
79 regulator-always-on;
80 };
81
82 vdda: regulator-vdda {
83 compatible = "regulator-fixed";
84 regulator-name = "vdda";
85 regulator-min-microvolt = <3300000>;
86 regulator-max-microvolt = <3300000>;
87 regulator-always-on;
88 };
89
90 vdd_ddr: regulator-vdd-ddr {
91 compatible = "regulator-fixed";
92 regulator-name = "vdd_ddr";
93 regulator-min-microvolt = <1350000>;
94 regulator-max-microvolt = <1350000>;
95 regulator-always-on;
96 };
97
98 vtt_ddr: regulator-vtt-ddr {
99 compatible = "regulator-fixed";
100 regulator-name = "vtt_ddr";
101 regulator-min-microvolt = <675000>;
102 regulator-max-microvolt = <675000>;
103 regulator-always-on;
104 vin-supply = <&vdd>;
105 };
106
107 vref_ddr: regulator-vref-ddr {
108 compatible = "regulator-fixed";
109 regulator-name = "vref_ddr";
110 regulator-min-microvolt = <675000>;
111 regulator-max-microvolt = <675000>;
112 regulator-always-on;
113 vin-supply = <&vdd>;
114 };
115
116 vdd_sd: regulator-vdd-sd {
117 compatible = "regulator-fixed";
118 regulator-name = "vdd_sd";
119 regulator-min-microvolt = <3300000>;
120 regulator-max-microvolt = <3300000>;
121 regulator-always-on;
122 };
123
124 v3v3: regulator-v3v3 {
125 compatible = "regulator-fixed";
126 regulator-name = "v3v3";
127 regulator-min-microvolt = <3300000>;
128 regulator-max-microvolt = <3300000>;
129 regulator-always-on;
130 };
131
132 v2v8: regulator-v2v8 {
133 compatible = "regulator-fixed";
134 regulator-name = "v2v8";
135 regulator-min-microvolt = <2800000>;
136 regulator-max-microvolt = <2800000>;
137 regulator-always-on;
138 vin-supply = <&v3v3>;
139 };
140
141 v1v8: regulator-v1v8 {
142 compatible = "regulator-fixed";
143 regulator-name = "v1v8";
144 regulator-min-microvolt = <1800000>;
145 regulator-max-microvolt = <1800000>;
146 regulator-always-on;
147 vin-supply = <&v3v3>;
148 };
149 };
150
151 &dts {
152 status = "okay";
153 };
154
155 &i2c2 {
156 i2c-scl-falling-time-ns = <20>;
157 i2c-scl-rising-time-ns = <185>;
158 pinctrl-names = "default", "sleep";
159 pinctrl-0 = <&i2c2_pins_a>;
160 pinctrl-1 = <&i2c2_sleep_pins_a>;
161 status = "okay";
162 };
163
164 &ipcc {
165 status = "okay";
166 };
167
168 &iwdg2 {
169 timeout-sec = <32>;
170 status = "okay";
171 };
172
173 &m4_rproc {
174 memory-region = <&retram>, <&mcuram>, <&mcuram2>, <&vdev0vring0>,
175 <&vdev0vring1>, <&vdev0buffer>;
176 mboxes = <&ipcc 0>, <&ipcc 1>, <&ipcc 2>;
177 mbox-names = "vq0", "vq1", "shutdown";
178 interrupt-parent = <&exti>;
179 interrupts = <68 1>;
180 status = "okay";
181 };
182
183 &rng1 {
184 status = "okay";
185 };
186
187 &rtc {
188 status = "okay";
189 };
190
191 &vrefbuf {
192 regulator-min-microvolt = <2500000>;
193 regulator-max-microvolt = <2500000>;
194 vdda-supply = <&vdd>;
195 status = "okay";
196 };
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