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1// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
2/*
3 * at91-sama7g54_curiosity.dts - Device Tree file for SAMA7G54 Curiosity Board
4 *
5 * Copyright (C) 2024 Microchip Technology Inc. and its subsidiaries
6 *
7 * Author: Mihai Sain <mihai.sain@microchip.com>
8 *
9 */
10/dts-v1/;
11#include "sama7g5-pinfunc.h"
12#include "sama7g5.dtsi"
13#include <dt-bindings/input/input.h>
14#include <dt-bindings/leds/common.h>
15#include <dt-bindings/mfd/atmel-flexcom.h>
16#include <dt-bindings/pinctrl/at91.h>
17
18/ {
19 model = "Microchip SAMA7G54 Curiosity";
20 compatible = "microchip,sama7g54-curiosity", "microchip,sama7g5", "microchip,sama7";
21
22 aliases {
23 serial0 = &uart3;
24 i2c0 = &i2c10;
25 };
26
27 chosen {
28 stdout-path = "serial0:115200n8";
29 };
30
31 gpio-keys {
32 compatible = "gpio-keys";
33 pinctrl-names = "default";
34 pinctrl-0 = <&pinctrl_key_gpio_default>;
35
36 button-user {
37 label = "user-button";
38 gpios = <&pioA PIN_PD19 GPIO_ACTIVE_LOW>;
39 linux,code = <KEY_PROG1>;
40 wakeup-source;
41 };
42 };
43
44 leds {
45 compatible = "gpio-leds";
46 pinctrl-names = "default";
47 pinctrl-0 = <&pinctrl_led_gpio_default>;
48
49 led-red {
50 color = <LED_COLOR_ID_RED>;
51 function = LED_FUNCTION_POWER;
52 gpios = <&pioA PIN_PD13 GPIO_ACTIVE_HIGH>;
53 default-state = "off";
54 };
55
56 led-green {
57 color = <LED_COLOR_ID_GREEN>;
58 function = LED_FUNCTION_BOOT;
59 gpios = <&pioA PIN_PD14 GPIO_ACTIVE_HIGH>;
60 default-state = "off";
61 };
62
63 led-blue {
64 color = <LED_COLOR_ID_BLUE>;
65 function = LED_FUNCTION_CPU;
66 gpios = <&pioA PIN_PB15 GPIO_ACTIVE_HIGH>;
67 linux,default-trigger = "heartbeat";
68 };
69 };
70
71 memory@60000000 {
72 device_type = "memory";
73 reg = <0x60000000 0x10000000>; /* 256 MiB DDR3L-1066 16-bit */
74 };
75
76 reg_5v: regulator-5v {
77 compatible = "regulator-fixed";
78 regulator-name = "5V_MAIN";
79 regulator-min-microvolt = <5000000>;
80 regulator-max-microvolt = <5000000>;
81 regulator-always-on;
82 };
83};
84
85&adc {
86 vddana-supply = <&vddout25>;
87 vref-supply = <&vddout25>;
88 pinctrl-names = "default";
89 pinctrl-0 = <&pinctrl_mikrobus1_an_default &pinctrl_mikrobus2_an_default>;
90 status = "okay";
91};
92
93&cpu0 {
94 cpu-supply = <&vddcpu>;
95};
96
97&dma0 {
98 status = "okay";
99};
100
101&dma1 {
102 status = "okay";
103};
104
105&dma2 {
106 status = "okay";
107};
108
109&ebi {
110 pinctrl-names = "default";
111 pinctrl-0 = <&pinctrl_nand_default>;
112 status = "okay";
113
114 nand_controller: nand-controller {
115 status = "okay";
116
117 nand@3 {
118 reg = <0x3 0x0 0x800000>;
119 atmel,rb = <0>;
120 nand-bus-width = <8>;
121 nand-ecc-mode = "hw";
122 nand-ecc-strength = <8>;
123 nand-ecc-step-size = <512>;
124 nand-on-flash-bbt;
125 label = "nand";
126
127 partitions {
128 compatible = "fixed-partitions";
129 #address-cells = <1>;
130 #size-cells = <1>;
131
132 at91bootstrap@0 {
133 label = "nand: at91bootstrap";
134 reg = <0x0 0x40000>;
135 };
136
137 bootloader@40000 {
138 label = "nand: u-boot";
139 reg = <0x40000 0x100000>;
140 };
141
142 bootloaderenv@140000 {
143 label = "nand: u-boot env";
144 reg = <0x140000 0x40000>;
145 };
146
147 dtb@180000 {
148 label = "nand: device tree";
149 reg = <0x180000 0x80000>;
150 };
151
152 kernel@200000 {
153 label = "nand: kernel";
154 reg = <0x200000 0x600000>;
155 };
156
157 rootfs@800000 {
158 label = "nand: rootfs";
159 reg = <0x800000 0x1f800000>;
160 };
161 };
162 };
163 };
164};
165
166&flx3 {
167 atmel,flexcom-mode = <ATMEL_FLEXCOM_MODE_USART>;
168 status = "okay";
169
170 uart3: serial@200 {
171 pinctrl-names = "default";
172 pinctrl-0 = <&pinctrl_flx3_default>;
173 status = "okay";
174 };
175};
176
177&flx10 {
178 atmel,flexcom-mode = <ATMEL_FLEXCOM_MODE_TWI>;
179 status = "okay";
180
181 i2c10: i2c@600 {
182 pinctrl-names = "default";
183 pinctrl-0 = <&pinctrl_flx10_default>;
184 i2c-analog-filter;
185 i2c-digital-filter;
186 i2c-digital-filter-width-ns = <35>;
187 status = "okay";
188
189 power-monitor@1f {
190 compatible = "microchip,pac1934";
191 reg = <0x1f>;
192 #address-cells = <1>;
193 #size-cells = <0>;
194
195 channel@1 {
196 reg = <0x1>;
197 shunt-resistor-micro-ohms = <47000>;
198 label = "VDD3V3";
199 };
200
201 channel@2 {
202 reg = <0x2>;
203 shunt-resistor-micro-ohms = <47000>;
204 label = "VDDIODDR";
205 };
206
207 channel@3 {
208 reg = <0x3>;
209 shunt-resistor-micro-ohms = <47000>;
210 label = "VDDCORE";
211 };
212
213 channel@4 {
214 reg = <0x4>;
215 shunt-resistor-micro-ohms = <47000>;
216 label = "VDDCPU";
217 };
218 };
219
220 eeprom@51 {
221 compatible = "atmel,24c02";
222 reg = <0x51>;
223 pagesize = <16>;
224 size = <256>;
225 vcc-supply = <&vdd_3v3>;
226 };
227
228 pmic@5b {
229 compatible = "microchip,mcp16502";
230 reg = <0x5b>;
231 lvin-supply = <®_5v>;
232 pvin1-supply = <®_5v>;
233 pvin2-supply = <®_5v>;
234 pvin3-supply = <®_5v>;
235 pvin4-supply = <®_5v>;
236
237 regulators {
238 vdd_3v3: VDD_IO {
239 regulator-name = "VDD_IO";
240 regulator-min-microvolt = <3300000>;
241 regulator-max-microvolt = <3300000>;
242 regulator-initial-mode = <2>;
243 regulator-allowed-modes = <2>, <4>;
244 regulator-always-on;
245
246 regulator-state-standby {
247 regulator-on-in-suspend;
248 regulator-suspend-microvolt = <3300000>;
249 regulator-mode = <4>;
250 };
251
252 regulator-state-mem {
253 regulator-off-in-suspend;
254 regulator-mode = <4>;
255 };
256 };
257
258 vddioddr: VDD_DDR {
259 regulator-name = "VDD_DDR";
260 regulator-min-microvolt = <1350000>;
261 regulator-max-microvolt = <1350000>;
262 regulator-initial-mode = <2>;
263 regulator-allowed-modes = <2>, <4>;
264 regulator-always-on;
265
266 regulator-state-standby {
267 regulator-on-in-suspend;
268 regulator-suspend-microvolt = <1350000>;
269 regulator-mode = <4>;
270 };
271
272 regulator-state-mem {
273 regulator-on-in-suspend;
274 regulator-suspend-microvolt = <1350000>;
275 regulator-mode = <4>;
276 };
277 };
278
279 vddcore: VDD_CORE {
280 regulator-name = "VDD_CORE";
281 regulator-min-microvolt = <1150000>;
282 regulator-max-microvolt = <1150000>;
283 regulator-initial-mode = <2>;
284 regulator-allowed-modes = <2>, <4>;
285 regulator-always-on;
286
287 regulator-state-standby {
288 regulator-on-in-suspend;
289 regulator-suspend-microvolt = <1150000>;
290 regulator-mode = <4>;
291 };
292
293 regulator-state-mem {
294 regulator-off-in-suspend;
295 regulator-mode = <4>;
296 };
297 };
298
299 vddcpu: VDD_OTHER {
300 regulator-name = "VDD_OTHER";
301 regulator-min-microvolt = <1050000>;
302 regulator-max-microvolt = <1250000>;
303 regulator-initial-mode = <2>;
304 regulator-allowed-modes = <2>, <4>;
305 regulator-ramp-delay = <3125>;
306 regulator-always-on;
307
308 regulator-state-standby {
309 regulator-on-in-suspend;
310 regulator-suspend-microvolt = <1050000>;
311 regulator-mode = <4>;
312 };
313
314 regulator-state-mem {
315 regulator-off-in-suspend;
316 regulator-mode = <4>;
317 };
318 };
319
320 vldo1: LDO1 {
321 regulator-name = "LDO1";
322 regulator-min-microvolt = <1800000>;
323 regulator-max-microvolt = <1800000>;
324 regulator-always-on;
325
326 regulator-state-standby {
327 regulator-suspend-microvolt = <1800000>;
328 regulator-on-in-suspend;
329 };
330
331 regulator-state-mem {
332 regulator-off-in-suspend;
333 };
334 };
335
336 vldo2: LDO2 {
337 regulator-name = "LDO2";
338 regulator-min-microvolt = <3300000>;
339 regulator-max-microvolt = <3300000>;
340 regulator-always-on;
341
342 regulator-state-standby {
343 regulator-suspend-microvolt = <3300000>;
344 regulator-on-in-suspend;
345 };
346
347 regulator-state-mem {
348 regulator-off-in-suspend;
349 };
350 };
351 };
352 };
353 };
354};
355
356&main_xtal {
357 clock-frequency = <24000000>;
358};
359
360&qspi1 {
361 pinctrl-names = "default";
362 pinctrl-0 = <&pinctrl_qspi1_default>;
363 status = "okay";
364
365 flash@0 {
366 compatible = "jedec,spi-nor";
367 reg = <0x0>;
368 spi-max-frequency = <100000000>;
369 spi-tx-bus-width = <4>;
370 spi-rx-bus-width = <4>;
371 m25p,fast-read;
372 };
373};
374
375&pioA {
376 pinctrl_flx3_default: flx3-default {
377 pinmux = <PIN_PD16__FLEXCOM3_IO0>,
378 <PIN_PD17__FLEXCOM3_IO1>;
379 bias-pull-up;
380 };
381
382 pinctrl_flx10_default: flx10-default {
383 pinmux = <PIN_PC30__FLEXCOM10_IO0>,
384 <PIN_PC31__FLEXCOM10_IO1>;
385 bias-pull-up;
386 };
387
388 pinctrl_key_gpio_default: key-gpio-default {
389 pinmux = <PIN_PD19__GPIO>;
390 bias-pull-up;
391 };
392
393 pinctrl_led_gpio_default: led-gpio-default {
394 pinmux = <PIN_PD13__GPIO>,
395 <PIN_PD14__GPIO>,
396 <PIN_PB15__GPIO>;
397 bias-pull-up;
398 };
399
400 pinctrl_mikrobus1_an_default: mikrobus1-an-default {
401 pinmux = <PIN_PC15__GPIO>;
402 bias-disable;
403 };
404
405 pinctrl_mikrobus2_an_default: mikrobus2-an-default {
406 pinmux = <PIN_PC13__GPIO>;
407 bias-disable;
408 };
409
410 pinctrl_nand_default: nand-default {
411 pinmux = <PIN_PD9__D0>,
412 <PIN_PD10__D1>,
413 <PIN_PD11__D2>,
414 <PIN_PC21__D3>,
415 <PIN_PC22__D4>,
416 <PIN_PC23__D5>,
417 <PIN_PC24__D6>,
418 <PIN_PD2__D7>,
419 <PIN_PD3__NANDRDY>,
420 <PIN_PD4__NCS3_NANDCS>,
421 <PIN_PD5__NWE_NWR0_NANDWE>,
422 <PIN_PD6__NRD_NANDOE>,
423 <PIN_PD7__A21_NANDALE>,
424 <PIN_PD8__A22_NANDCLE>;
425 bias-disable;
426 slew-rate = <0>;
427 };
428
429 pinctrl_qspi1_default: qspi1-default {
430 pinmux = <PIN_PB22__QSPI1_IO3>,
431 <PIN_PB23__QSPI1_IO2>,
432 <PIN_PB24__QSPI1_IO1>,
433 <PIN_PB25__QSPI1_IO0>,
434 <PIN_PB26__QSPI1_CS>,
435 <PIN_PB27__QSPI1_SCK>;
436 bias-pull-up;
437 slew-rate = <0>;
438 };
439
440 pinctrl_sdmmc0_default: sdmmc0-default {
441 pinmux = <PIN_PA0__SDMMC0_CK>,
442 <PIN_PA1__SDMMC0_CMD>,
443 <PIN_PA2__SDMMC0_RSTN>,
444 <PIN_PA3__SDMMC0_DAT0>,
445 <PIN_PA4__SDMMC0_DAT1>,
446 <PIN_PA5__SDMMC0_DAT2>,
447 <PIN_PA6__SDMMC0_DAT3>;
448 bias-pull-up;
449 slew-rate = <0>;
450 };
451
452 pinctrl_sdmmc1_default: sdmmc1-default {
453 pinmux = <PIN_PB29__SDMMC1_CMD>,
454 <PIN_PB30__SDMMC1_CK>,
455 <PIN_PB31__SDMMC1_DAT0>,
456 <PIN_PC0__SDMMC1_DAT1>,
457 <PIN_PC1__SDMMC1_DAT2>,
458 <PIN_PC2__SDMMC1_DAT3>,
459 <PIN_PC4__SDMMC1_CD>;
460 bias-pull-up;
461 slew-rate = <0>;
462 };
463};
464
465&rtt {
466 atmel,rtt-rtc-time-reg = <&gpbr 0x0>;
467};
468
469/* M.2 slot for wireless card */
470&sdmmc0 {
471 bus-width = <4>;
472 cd-gpios = <&pioA 31 GPIO_ACTIVE_LOW>;
473 disable-wp;
474 sdhci-caps-mask = <0x0 0x00200000>;
475 vmmc-supply = <&vdd_3v3>;
476 vqmmc-supply = <&vdd_3v3>;
477 pinctrl-names = "default";
478 pinctrl-0 = <&pinctrl_sdmmc0_default>;
479 status = "okay";
480};
481
482/* micro SD socket */
483&sdmmc1 {
484 bus-width = <4>;
485 disable-wp;
486 sdhci-caps-mask = <0x0 0x00200000>;
487 vmmc-supply = <&vdd_3v3>;
488 vqmmc-supply = <&vdd_3v3>;
489 pinctrl-names = "default";
490 pinctrl-0 = <&pinctrl_sdmmc1_default>;
491 status = "okay";
492};
493
494&slow_xtal {
495 clock-frequency = <32768>;
496};
497
498&shdwc {
499 debounce-delay-us = <976>;
500 status = "okay";
501
502 input@0 {
503 reg = <0>;
504 };
505};
506
507&tcb0 {
508 timer0: timer@0 {
509 compatible = "atmel,tcb-timer";
510 reg = <0>;
511 };
512
513 timer1: timer@1 {
514 compatible = "atmel,tcb-timer";
515 reg = <1>;
516 };
517};
518
519&trng {
520 status = "okay";
521};
522
523&vddout25 {
524 vin-supply = <&vdd_3v3>;
525 status = "okay";
526};