1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
2 /*
3 * Copyright (c) 2023 SberDevices
4 * Author: Dmitry Rokosov <ddrokosov@sberdevices.ru>
5 */
6
7 /dts-v1/;
8
9 #include "meson-a1.dtsi"
10 #include <dt-bindings/thermal/thermal.h>
11
12 / {
13 compatible = "amlogic,ad402", "amlogic,a1";
14 model = "Amlogic Meson A1 AD402 Development Board";
15
16 aliases {
17 serial0 = &uart_AO_B;
18 };
19
20 chosen {
21 stdout-path = "serial0:115200n8";
22 };
23
24 memory@0 {
25 device_type = "memory";
26 reg = <0x0 0x0 0x0 0x8000000>;
27 };
28
29 reserved-memory {
30 /* 3 MiB reserved for Amlogic Trust OS (BL32) */
31 secos_reserved: secos@3d00000 {
32 reg = <0x0 0x03d00000 0x0 0x300000>;
33 no-map;
34 };
35 };
36
37 firmware {
38 optee {
39 compatible = "linaro,optee-tz";
40 method = "smc";
41 };
42 };
43
44 battery_4v2: regulator-battery-4v2 {
45 compatible = "regulator-fixed";
46 regulator-name = "4V2";
47 regulator-min-microvolt = <4200000>;
48 regulator-max-microvolt = <4200000>;
49 regulator-always-on;
50 };
51
52 vddq_1v35: regulator-vddq-1v35 {
53 compatible = "regulator-fixed";
54 regulator-name = "VDDQ_1V35";
55 regulator-min-microvolt = <1350000>;
56 regulator-max-microvolt = <1350000>;
57 vin-supply = <&battery_4v2>;
58 regulator-always-on;
59 };
60
61 vddao_3v3: regulator-vddao-3v3 {
62 compatible = "regulator-fixed";
63 regulator-name = "VDDAO_3V3";
64 regulator-min-microvolt = <3300000>;
65 regulator-max-microvolt = <3300000>;
66 vin-supply = <&battery_4v2>;
67 regulator-always-on;
68 };
69
70 vcc_3v3: regulator-vcc-3v3 {
71 compatible = "regulator-fixed";
72 regulator-name = "VCC_3V3";
73 regulator-min-microvolt = <3300000>;
74 regulator-max-microvolt = <3300000>;
75 vin-supply = <&vddao_3v3>;
76 regulator-always-on;
77 };
78
79 vddio_1v8: regulator-vddio-1v8 {
80 compatible = "regulator-fixed";
81 regulator-name = "VDDIO_1V8";
82 regulator-min-microvolt = <1800000>;
83 regulator-max-microvolt = <1800000>;
84 vin-supply = <&vddao_3v3>;
85 regulator-always-on;
86 };
87
88 thermal-zones {
89 soc_thermal: soc-thermal {
90 polling-delay = <1000>;
91 polling-delay-passive = <100>;
92 sustainable-power = <130>;
93
94 thermal-sensors = <&cpu_temp>;
95
96 trips {
97 soc_passive: soc-passive {
98 temperature = <70000>;
99 hysteresis = <2000>;
100 type = "passive";
101 };
102
103 soc_hot: soc-hot {
104 temperature = <85000>;
105 hysteresis = <5000>;
106 type = "hot";
107 };
108
109 soc_critical: soc-critical {
110 temperature = <110000>;
111 hysteresis = <1000>;
112 type = "critical";
113 };
114 };
115
116 soc_cooling_maps: cooling-maps {
117 map0 {
118 trip = <&soc_passive>;
119 cooling-device = <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
120 <&cpu1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
121 };
122
123 map1 {
124 trip = <&soc_hot>;
125 cooling-device = <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
126 <&cpu1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
127 };
128 };
129 };
130 };
131 };
132
133 /* Bluetooth HCI H4 */
134 &uart_AO {
135 status = "okay";
136 pinctrl-0 = <&uart_a_pins>, <&uart_a_cts_rts_pins>;
137 pinctrl-names = "default";
138 };
139
140 &uart_AO_B {
141 status = "okay";
142 };
143
144 &saradc {
145 status = "okay";
146 vref-supply = <&vddio_1v8>;
147 };
148
149 &spifc {
150 status = "okay";
151 pinctrl-0 = <&spifc_pins>;
152 pinctrl-names = "default";
153
154 flash@0 {
155 compatible = "spi-nand";
156 status = "okay";
157 reg = <0>;
158 spi-max-frequency = <96000000>;
159 spi-tx-bus-width = <4>;
160 spi-rx-bus-width = <4>;
161 };
162 };
163
164 &usb2_phy1 {
165 phy-supply = <&vcc_3v3>;
166 };
167
168 &usb {
169 status = "okay";
170 dr_mode = "peripheral";
171 };
172
173 &sd_emmc {
174 status = "okay";
175
176 #address-cells = <1>;
177 #size-cells = <0>;
178
179 pinctrl-0 = <&sdio_pins>;
180 pinctrl-1 = <&sdio_clk_gate_pins>;
181 pinctrl-names = "default", "clk-gate";
182
183 bus-width = <4>;
184 cap-sd-highspeed;
185 sd-uhs-sdr104;
186 max-frequency = <200000000>;
187 non-removable;
188 disable-wp;
189
190 vmmc-supply = <&vddao_3v3>;
191 vqmmc-supply = <&vddio_1v8>;
192 };
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