1 // SPDX-License-Identifier: (GPL-2.0 OR MIT)
2 /*
3 * Device Tree Source for the Spider CPU board
4 *
5 * Copyright (C) 2021 Renesas Electronics Corp.
6 */
7
8 #include <dt-bindings/gpio/gpio.h>
9 #include <dt-bindings/leds/common.h>
10
11 #include "r8a779f0.dtsi"
12
13 / {
14 model = "Renesas Spider CPU board";
15 compatible = "renesas,spider-cpu", "renesas,r8a779f0";
16
17 aliases {
18 i2c0 = &i2c0;
19 i2c1 = &i2c1;
20 i2c2 = &i2c2;
21 i2c3 = &i2c3;
22 i2c4 = &i2c4;
23 i2c5 = &i2c5;
24 serial0 = &hscif0;
25 serial1 = &scif0;
26 };
27
28 chosen {
29 bootargs = "ignore_loglevel rw root=/dev/nfs ip=on";
30 stdout-path = "serial0:1843200n8";
31 };
32
33 leds {
34 compatible = "gpio-leds";
35
36 led-7 {
37 gpios = <&gpio0 11 GPIO_ACTIVE_HIGH>;
38 color = <LED_COLOR_ID_GREEN>;
39 function = LED_FUNCTION_INDICATOR;
40 function-enumerator = <7>;
41 };
42
43 led-8 {
44 gpios = <&gpio0 14 GPIO_ACTIVE_HIGH>;
45 color = <LED_COLOR_ID_GREEN>;
46 function = LED_FUNCTION_INDICATOR;
47 function-enumerator = <8>;
48 };
49 };
50
51 memory@48000000 {
52 device_type = "memory";
53 /* first 128MB is reserved for secure area. */
54 reg = <0x0 0x48000000 0x0 0x78000000>;
55 };
56
57 memory@480000000 {
58 device_type = "memory";
59 reg = <0x4 0x80000000 0x0 0x80000000>;
60 };
61
62 rc21012_pci: clk-rc21012-pci {
63 compatible = "fixed-clock";
64 clock-frequency = <100000000>;
65 #clock-cells = <0>;
66 };
67
68 rc21012_ufs: clk-rc21012-ufs {
69 compatible = "fixed-clock";
70 clock-frequency = <38400000>;
71 #clock-cells = <0>;
72 };
73
74 reg_1p8v: regulator-1p8v {
75 compatible = "regulator-fixed";
76 regulator-name = "fixed-1.8V";
77 regulator-min-microvolt = <1800000>;
78 regulator-max-microvolt = <1800000>;
79 regulator-boot-on;
80 regulator-always-on;
81 };
82
83 reg_3p3v: regulator-3p3v {
84 compatible = "regulator-fixed";
85 regulator-name = "fixed-3.3V";
86 regulator-min-microvolt = <3300000>;
87 regulator-max-microvolt = <3300000>;
88 regulator-boot-on;
89 regulator-always-on;
90 };
91 };
92
93 &extal_clk {
94 clock-frequency = <20000000>;
95 };
96
97 &extalr_clk {
98 clock-frequency = <32768>;
99 };
100
101 &hscif0 {
102 pinctrl-0 = <&hscif0_pins>;
103 pinctrl-names = "default";
104
105 uart-has-rtscts;
106 status = "okay";
107 };
108
109 &i2c0 {
110 pinctrl-0 = <&i2c0_pins>;
111 pinctrl-names = "default";
112
113 status = "okay";
114 clock-frequency = <400000>;
115
116 gpio_exp_20: gpio@20 {
117 compatible = "ti,tca9554";
118 reg = <0x20>;
119 gpio-controller;
120 #gpio-cells = <2>;
121
122 rc21012-gpio2-hog {
123 gpio-hog;
124 gpios = <5 GPIO_ACTIVE_LOW>;
125 output-high;
126 };
127 };
128 };
129
130 &i2c4 {
131 pinctrl-0 = <&i2c4_pins>;
132 pinctrl-names = "default";
133
134 status = "okay";
135 clock-frequency = <400000>;
136
137 eeprom@50 {
138 compatible = "rohm,br24g01", "atmel,24c01";
139 label = "cpu-board";
140 reg = <0x50>;
141 pagesize = <8>;
142 };
143 };
144
145 /*
146 * This board also has a microSD slot which we will not support upstream
147 * because we cannot directly switch voltages in software.
148 */
149 &mmc0 {
150 pinctrl-0 = <&mmc_pins>;
151 pinctrl-1 = <&mmc_pins>;
152 pinctrl-names = "default", "state_uhs";
153
154 vmmc-supply = <®_3p3v>;
155 vqmmc-supply = <®_1p8v>;
156 mmc-hs200-1_8v;
157 mmc-hs400-1_8v;
158 bus-width = <8>;
159 no-sd;
160 no-sdio;
161 non-removable;
162 full-pwr-cycle-in-suspend;
163 status = "okay";
164 };
165
166 &pcie0_clkref {
167 compatible = "gpio-gate-clock";
168 clocks = <&rc21012_pci>;
169 enable-gpios = <&gpio2 15 GPIO_ACTIVE_LOW>;
170 /delete-property/ clock-frequency;
171 };
172
173 &pciec0 {
174 reset-gpio = <&gpio_exp_20 0 GPIO_ACTIVE_LOW>;
175 status = "okay";
176 };
177
178 &pfc {
179 pinctrl-0 = <&scif_clk_pins>;
180 pinctrl-names = "default";
181
182 hscif0_pins: hscif0 {
183 groups = "hscif0_data", "hscif0_ctrl";
184 function = "hscif0";
185 };
186
187 i2c0_pins: i2c0 {
188 groups = "i2c0";
189 function = "i2c0";
190 };
191
192 i2c4_pins: i2c4 {
193 groups = "i2c4";
194 function = "i2c4";
195 };
196
197 mmc_pins: mmc {
198 groups = "mmc_data8", "mmc_ctrl", "mmc_ds";
199 function = "mmc";
200 power-source = <1800>;
201 };
202
203 scif0_pins: scif0 {
204 groups = "scif0_data", "scif0_ctrl";
205 function = "scif0";
206 };
207
208 scif_clk_pins: scif_clk {
209 groups = "scif_clk";
210 function = "scif_clk";
211 };
212 };
213
214 &rwdt {
215 timeout-sec = <60>;
216 status = "okay";
217 };
218
219 &scif0 {
220 pinctrl-0 = <&scif0_pins>;
221 pinctrl-names = "default";
222
223 uart-has-rtscts;
224 status = "okay";
225 };
226
227 &scif_clk {
228 clock-frequency = <24000000>;
229 };
230
231 &ufs {
232 status = "okay";
233 };
234
235 &ufs30_clk {
236 compatible = "gpio-gate-clock";
237 clocks = <&rc21012_ufs>;
238 enable-gpios = <&gpio_exp_20 4 GPIO_ACTIVE_LOW>;
239 /delete-property/ clock-frequency;
240 };
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