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 eeprom@51 {
190 compatible = "atmel,24c02";
191 reg = <0x51>;
192 pagesize = <16>;
193 size = <256>;
194 vcc-supply = <&vdd_3v3>;
195 };
196
197 pmic@5b {
198 compatible = "microchip,mcp16502";
199 reg = <0x5b>;
200 lvin-supply = <®_5v>;
201 pvin1-supply = <®_5v>;
202 pvin2-supply = <®_5v>;
203 pvin3-supply = <®_5v>;
204 pvin4-supply = <®_5v>;
205
206 regulators {
207 vdd_3v3: VDD_IO {
208 regulator-name = "VDD_IO";
209 regulator-min-microvolt = <3300000>;
210 regulator-max-microvolt = <3300000>;
211 regulator-initial-mode = <2>;
212 regulator-allowed-modes = <2>, <4>;
213 regulator-always-on;
214
215 regulator-state-standby {
216 regulator-on-in-suspend;
217 regulator-suspend-microvolt = <3300000>;
218 regulator-mode = <4>;
219 };
220
221 regulator-state-mem {
222 regulator-off-in-suspend;
223 regulator-mode = <4>;
224 };
225 };
226
227 vddioddr: VDD_DDR {
228 regulator-name = "VDD_DDR";
229 regulator-min-microvolt = <1350000>;
230 regulator-max-microvolt = <1350000>;
231 regulator-initial-mode = <2>;
232 regulator-allowed-modes = <2>, <4>;
233 regulator-always-on;
234
235 regulator-state-standby {
236 regulator-on-in-suspend;
237 regulator-suspend-microvolt = <1350000>;
238 regulator-mode = <4>;
239 };
240
241 regulator-state-mem {
242 regulator-on-in-suspend;
243 regulator-suspend-microvolt = <1350000>;
244 regulator-mode = <4>;
245 };
246 };
247
248 vddcore: VDD_CORE {
249 regulator-name = "VDD_CORE";
250 regulator-min-microvolt = <1150000>;
251 regulator-max-microvolt = <1150000>;
252 regulator-initial-mode = <2>;
253 regulator-allowed-modes = <2>, <4>;
254 regulator-always-on;
255
256 regulator-state-standby {
257 regulator-on-in-suspend;
258 regulator-suspend-microvolt = <1150000>;
259 regulator-mode = <4>;
260 };
261
262 regulator-state-mem {
263 regulator-off-in-suspend;
264 regulator-mode = <4>;
265 };
266 };
267
268 vddcpu: VDD_OTHER {
269 regulator-name = "VDD_OTHER";
270 regulator-min-microvolt = <1050000>;
271 regulator-max-microvolt = <1250000>;
272 regulator-initial-mode = <2>;
273 regulator-allowed-modes = <2>, <4>;
274 regulator-ramp-delay = <3125>;
275 regulator-always-on;
276
277 regulator-state-standby {
278 regulator-on-in-suspend;
279 regulator-suspend-microvolt = <1050000>;
280 regulator-mode = <4>;
281 };
282
283 regulator-state-mem {
284 regulator-off-in-suspend;
285 regulator-mode = <4>;
286 };
287 };
288
289 vldo1: LDO1 {
290 regulator-name = "LDO1";
291 regulator-min-microvolt = <1800000>;
292 regulator-max-microvolt = <1800000>;
293 regulator-always-on;
294
295 regulator-state-standby {
296 regulator-suspend-microvolt = <1800000>;
297 regulator-on-in-suspend;
298 };
299
300 regulator-state-mem {
301 regulator-off-in-suspend;
302 };
303 };
304
305 vldo2: LDO2 {
306 regulator-name = "LDO2";
307 regulator-min-microvolt = <3300000>;
308 regulator-max-microvolt = <3300000>;
309 regulator-always-on;
310
311 regulator-state-standby {
312 regulator-suspend-microvolt = <3300000>;
313 regulator-on-in-suspend;
314 };
315
316 regulator-state-mem {
317 regulator-off-in-suspend;
318 };
319 };
320 };
321 };
322 };
323 };
324
325 &main_xtal {
326 clock-frequency = <24000000>;
327 };
328
329 &qspi1 {
330 pinctrl-names = "default";
331 pinctrl-0 = <&pinctrl_qspi1_default>;
332 status = "okay";
333
334 flash@0 {
335 compatible = "jedec,spi-nor";
336 reg = <0x0>;
337 spi-max-frequency = <100000000>;
338 spi-tx-bus-width = <4>;
339 spi-rx-bus-width = <4>;
340 m25p,fast-read;
341 };
342 };
343
344 &pioA {
345 pinctrl_flx3_default: flx3-default {
346 pinmux = <PIN_PD16__FLEXCOM3_IO0>,
347 <PIN_PD17__FLEXCOM3_IO1>;
348 bias-pull-up;
349 };
350
351 pinctrl_flx10_default: flx10-default {
352 pinmux = <PIN_PC30__FLEXCOM10_IO0>,
353 <PIN_PC31__FLEXCOM10_IO1>;
354 bias-pull-up;
355 };
356
357 pinctrl_key_gpio_default: key-gpio-default {
358 pinmux = <PIN_PD19__GPIO>;
359 bias-pull-up;
360 };
361
362 pinctrl_led_gpio_default: led-gpio-default {
363 pinmux = <PIN_PD13__GPIO>,
364 <PIN_PD14__GPIO>,
365 <PIN_PB15__GPIO>;
366 bias-pull-up;
367 };
368
369 pinctrl_mikrobus1_an_default: mikrobus1-an-default {
370 pinmux = <PIN_PC15__GPIO>;
371 bias-disable;
372 };
373
374 pinctrl_mikrobus2_an_default: mikrobus2-an-default {
375 pinmux = <PIN_PC13__GPIO>;
376 bias-disable;
377 };
378
379 pinctrl_nand_default: nand-default {
380 pinmux = <PIN_PD9__D0>,
381 <PIN_PD10__D1>,
382 <PIN_PD11__D2>,
383 <PIN_PC21__D3>,
384 <PIN_PC22__D4>,
385 <PIN_PC23__D5>,
386 <PIN_PC24__D6>,
387 <PIN_PD2__D7>,
388 <PIN_PD3__NANDRDY>,
389 <PIN_PD4__NCS3_NANDCS>,
390 <PIN_PD5__NWE_NWR0_NANDWE>,
391 <PIN_PD6__NRD_NANDOE>,
392 <PIN_PD7__A21_NANDALE>,
393 <PIN_PD8__A22_NANDCLE>;
394 bias-disable;
395 slew-rate = <0>;
396 };
397
398 pinctrl_qspi1_default: qspi1-default {
399 pinmux = <PIN_PB22__QSPI1_IO3>,
400 <PIN_PB23__QSPI1_IO2>,
401 <PIN_PB24__QSPI1_IO1>,
402 <PIN_PB25__QSPI1_IO0>,
403 <PIN_PB26__QSPI1_CS>,
404 <PIN_PB27__QSPI1_SCK>;
405 bias-pull-up;
406 slew-rate = <0>;
407 };
408
409 pinctrl_sdmmc0_default: sdmmc0-default {
410 pinmux = <PIN_PA0__SDMMC0_CK>,
411 <PIN_PA1__SDMMC0_CMD>,
412 <PIN_PA2__SDMMC0_RSTN>,
413 <PIN_PA3__SDMMC0_DAT0>,
414 <PIN_PA4__SDMMC0_DAT1>,
415 <PIN_PA5__SDMMC0_DAT2>,
416 <PIN_PA6__SDMMC0_DAT3>;
417 bias-pull-up;
418 slew-rate = <0>;
419 };
420
421 pinctrl_sdmmc1_default: sdmmc1-default {
422 pinmux = <PIN_PB29__SDMMC1_CMD>,
423 <PIN_PB30__SDMMC1_CK>,
424 <PIN_PB31__SDMMC1_DAT0>,
425 <PIN_PC0__SDMMC1_DAT1>,
426 <PIN_PC1__SDMMC1_DAT2>,
427 <PIN_PC2__SDMMC1_DAT3>,
428 <PIN_PC4__SDMMC1_CD>;
429 bias-pull-up;
430 slew-rate = <0>;
431 };
432 };
433
434 &rtt {
435 atmel,rtt-rtc-time-reg = <&gpbr 0x0>;
436 };
437
438 /* M.2 slot for wireless card */
439 &sdmmc0 {
440 bus-width = <4>;
441 cd-gpios = <&pioA 31 GPIO_ACTIVE_LOW>;
442 disable-wp;
443 sdhci-caps-mask = <0x0 0x00200000>;
444 vmmc-supply = <&vdd_3v3>;
445 vqmmc-supply = <&vdd_3v3>;
446 pinctrl-names = "default";
447 pinctrl-0 = <&pinctrl_sdmmc0_default>;
448 status = "okay";
449 };
450
451 /* micro SD socket */
452 &sdmmc1 {
453 bus-width = <4>;
454 disable-wp;
455 sdhci-caps-mask = <0x0 0x00200000>;
456 vmmc-supply = <&vdd_3v3>;
457 vqmmc-supply = <&vdd_3v3>;
458 pinctrl-names = "default";
459 pinctrl-0 = <&pinctrl_sdmmc1_default>;
460 status = "okay";
461 };
462
463 &slow_xtal {
464 clock-frequency = <32768>;
465 };
466
467 &shdwc {
468 debounce-delay-us = <976>;
469 status = "okay";
470
471 input@0 {
472 reg = <0>;
473 };
474 };
475
476 &tcb0 {
477 timer0: timer@0 {
478 compatible = "atmel,tcb-timer";
479 reg = <0>;
480 };
481
482 timer1: timer@1 {
483 compatible = "atmel,tcb-timer";
484 reg = <1>;
485 };
486 };
487
488 &trng {
489 status = "okay";
490 };
491
492 &vddout25 {
493 vin-supply = <&vdd_3v3>;
494 status = "okay";
495 };
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.