1 // SPDX-License-Identifier: GPL-2.0
2 /dts-v1/;
3
4 #include "jz4725b.dtsi"
5
6 #include <dt-bindings/gpio/gpio.h>
7 #include <dt-bindings/iio/adc/ingenic,adc.h>
8 #include <dt-bindings/input/linux-event-codes.h>
9
10 / {
11 compatible = "ylm,rs90", "ingenic,jz4725b";
12 model = "RS-90";
13
14 memory {
15 device_type = "memory";
16 reg = <0x0 0x2000000>;
17 };
18
19 reserved-memory {
20 #address-cells = <1>;
21 #size-cells = <1>;
22 ranges;
23
24 vmem: video-memory@1f00000 {
25 compatible = "shared-dma-pool";
26 reg = <0x1f00000 0x100000>;
27 reusable;
28 };
29 };
30
31 vcc: regulator {
32 compatible = "regulator-fixed";
33
34 regulator-name = "vcc";
35 regulaor-min-microvolt = <3300000>;
36 regulaor-max-microvolt = <3300000>;
37 regulator-always-on;
38 };
39
40 backlight: backlight {
41 compatible = "pwm-backlight";
42 pwms = <&pwm 3 40000 0>;
43
44 brightness-levels = <0 16 32 48 64 80 112 144 192 255>;
45 default-brightness-level = <8>;
46
47 pinctrl-names = "default";
48 pinctrl-0 = <&pins_pwm3>;
49
50 power-supply = <&vcc>;
51 };
52
53 keys@0 {
54 compatible = "gpio-keys";
55
56 key-0 {
57 label = "D-pad up";
58 linux,code = <KEY_UP>;
59 gpios = <&gpc 10 GPIO_ACTIVE_LOW>;
60 };
61
62 key-1 {
63 label = "D-pad down";
64 linux,code = <KEY_DOWN>;
65 gpios = <&gpc 11 GPIO_ACTIVE_LOW>;
66 };
67
68 key-2 {
69 label = "D-pad left";
70 linux,code = <KEY_LEFT>;
71 gpios = <&gpb 31 GPIO_ACTIVE_LOW>;
72 };
73
74 key-3 {
75 label = "D-pad right";
76 linux,code = <KEY_RIGHT>;
77 gpios = <&gpd 21 GPIO_ACTIVE_LOW>;
78 };
79
80 key-4 {
81 label = "Button A";
82 linux,code = <KEY_LEFTCTRL>;
83 gpios = <&gpc 31 GPIO_ACTIVE_LOW>;
84 };
85
86 key-5 {
87 label = "Button B";
88 linux,code = <KEY_LEFTALT>;
89 gpios = <&gpc 30 GPIO_ACTIVE_LOW>;
90 };
91
92 key-6 {
93 label = "Right shoulder button";
94 linux,code = <KEY_BACKSPACE>;
95 gpios = <&gpc 12 GPIO_ACTIVE_LOW>;
96 debounce-interval = <10>;
97 };
98
99 key-7 {
100 label = "Start button";
101 linux,code = <KEY_ENTER>;
102 gpios = <&gpd 17 GPIO_ACTIVE_LOW>;
103 };
104 };
105
106 keys@1 {
107 compatible = "adc-keys";
108 io-channels = <&adc INGENIC_ADC_AUX>;
109 io-channel-names = "buttons";
110 keyup-threshold-microvolt = <1400000>;
111 poll-interval = <30>;
112
113 key@0 {
114 label = "Left shoulder button";
115 linux,code = <KEY_TAB>;
116 press-threshold-microvolt = <800000>;
117 };
118
119 key@1 {
120 label = "Select button";
121 linux,code = <KEY_ESC>;
122 press-threshold-microvolt = <1100000>;
123 };
124 };
125
126 amp: analog-amplifier {
127 compatible = "simple-audio-amplifier";
128 enable-gpios = <&gpc 15 GPIO_ACTIVE_HIGH>;
129
130 VCC-supply = <&vcc>;
131 };
132
133 sound {
134 compatible = "simple-audio-card";
135
136 simple-audio-card,name = "rs90-audio";
137 simple-audio-card,format = "i2s";
138
139 simple-audio-card,widgets =
140 "Speaker", "Speaker",
141 "Headphone", "Headphones";
142 simple-audio-card,routing =
143 "INL", "LHPOUT",
144 "INR", "RHPOUT",
145 "Headphones", "LHPOUT",
146 "Headphones", "RHPOUT",
147 "Speaker", "OUTL",
148 "Speaker", "OUTR";
149 simple-audio-card,pin-switches = "Speaker";
150
151 simple-audio-card,hp-det-gpio = <&gpd 16 GPIO_ACTIVE_LOW>;
152 simple-audio-card,aux-devs = <&>;
153
154 simple-audio-card,bitclock-master = <&dai_codec>;
155 simple-audio-card,frame-master = <&dai_codec>;
156
157 dai_cpu: simple-audio-card,cpu {
158 sound-dai = <&aic>;
159 };
160
161 dai_codec: simple-audio-card,codec {
162 sound-dai = <&codec>;
163 };
164
165 };
166
167 usb_phy: usb-phy {
168 compatible = "usb-nop-xceiv";
169 #phy-cells = <0>;
170
171 clocks = <&cgu JZ4725B_CLK_UDC_PHY>;
172 clock-names = "main_clk";
173 vcc-supply = <&vcc>;
174 };
175
176 panel {
177 compatible = "sharp,ls020b1dd01d";
178
179 backlight = <&backlight>;
180 power-supply = <&vcc>;
181
182 port {
183 panel_input: endpoint {
184 remote-endpoint = <&panel_output>;
185 };
186 };
187 };
188 };
189
190 &ext {
191 clock-frequency = <12000000>;
192 };
193
194 &rtc_dev {
195 system-power-controller;
196 };
197
198 &udc {
199 phys = <&usb_phy>;
200 };
201
202 &pinctrl {
203 pins_mmc1: mmc1 {
204 function = "mmc1";
205 groups = "mmc1-1bit";
206 };
207
208 pins_nemc: nemc {
209 function = "nand";
210 groups = "nand-cs1", "nand-cle-ale", "nand-fre-fwe";
211 };
212
213 pins_pwm3: pwm3 {
214 function = "pwm3";
215 groups = "pwm3";
216 bias-disable;
217 };
218
219 pins_lcd: lcd {
220 function = "lcd";
221 groups = "lcd-8bit", "lcd-16bit", "lcd-special";
222 };
223 };
224
225 &mmc0 {
226 status = "disabled";
227 };
228
229 &mmc1 {
230 bus-width = <1>;
231 max-frequency = <48000000>;
232
233 pinctrl-names = "default";
234 pinctrl-0 = <&pins_mmc1>;
235
236 cd-gpios = <&gpc 20 GPIO_ACTIVE_LOW>;
237 };
238
239 &uart {
240 /*
241 * The pins for RX/TX are used for the right shoulder button and
242 * backlight PWM.
243 */
244 status = "disabled";
245 };
246
247 &nemc {
248 nandc: nand-controller@1 {
249 compatible = "ingenic,jz4725b-nand";
250 reg = <1 0 0x4000000>;
251
252 #address-cells = <1>;
253 #size-cells = <0>;
254
255 ecc-engine = <&bch>;
256
257 ingenic,nemc-tAS = <10>;
258 ingenic,nemc-tAH = <5>;
259 ingenic,nemc-tBP = <10>;
260 ingenic,nemc-tAW = <15>;
261 ingenic,nemc-tSTRV = <100>;
262
263 pinctrl-names = "default";
264 pinctrl-0 = <&pins_nemc>;
265
266 rb-gpios = <&gpc 27 GPIO_ACTIVE_HIGH>;
267
268 nand@1 {
269 reg = <1>;
270
271 nand-ecc-step-size = <512>;
272 nand-ecc-strength = <8>;
273 nand-ecc-mode = "hw";
274 nand-is-boot-medium;
275 nand-on-flash-bbt;
276
277 partitions {
278 compatible = "fixed-partitions";
279 #address-cells = <1>;
280 #size-cells = <1>;
281
282 partition@0 {
283 label = "bootloader";
284 reg = <0x0 0x20000>;
285 };
286
287 partition@20000 {
288 label = "system";
289 reg = <0x20000 0x0>;
290 };
291 };
292 };
293 };
294 };
295
296 &cgu {
297 /* Use 32kHz oscillator as the parent of the RTC clock */
298 assigned-clocks = <&cgu JZ4725B_CLK_RTC>;
299 assigned-clock-parents = <&cgu JZ4725B_CLK_OSC32K>;
300 };
301
302 &tcu {
303 /*
304 * 750 kHz for the system timer and clocksource, and use RTC as the
305 * parent for the watchdog clock.
306 */
307 assigned-clocks = <&tcu TCU_CLK_TIMER0>, <&tcu TCU_CLK_TIMER1>, <&tcu TCU_CLK_WDT>;
308 assigned-clock-parents = <0>, <0>, <&cgu JZ4725B_CLK_RTC>;
309 assigned-clock-rates = <750000>, <750000>;
310 };
311
312 &lcd {
313 memory-region = <&vmem>;
314
315 pinctrl-names = "default";
316 pinctrl-0 = <&pins_lcd>;
317 };
318
319 &lcd_ports {
320 port@0 {
321 reg = <0>;
322
323 panel_output: endpoint {
324 remote-endpoint = <&panel_input>;
325 };
326 };
327 };
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