arch/arm/boot/dts/at91-sama5d27_som1_ek.dts

   1 /*
   2  * at91-sama5d27_som1_ek.dts - Device Tree file for SAMA5D27-SOM1-EK board
   3  *
   4  *  Copyright (c) 2017, Microchip Technology Inc.
   5  *                2016 Nicolas Ferre <nicolas.ferre@atmel.com>
   6  *                2017 Cristian Birsan <cristian.birsan@microchip.com>
   7  *                2017 Claudiu Beznea <claudiu.beznea@microchip.com>
   8  *
   9  * This file is dual-licensed: you can use it either under the terms
  10  * of the GPL or the X11 license, at your option. Note that this dual
  11  * licensing only applies to this file, and not this project as a
  12  * whole.
  13  *
  14  *  a) This file is free software; you can redistribute it and/or
  15  *     modify it under the terms of the GNU General Public License as
  16  *     published by the Free Software Foundation; either version 2 of the
  17  *     License, or (at your option) any later version.
  18  *
  19  *     This file is distributed in the hope that it will be useful,
  20  *     but WITHOUT ANY WARRANTY; without even the implied warranty of
  21  *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  22  *     GNU General Public License for more details.
  23  *
  24  * Or, alternatively,
  25  *
  26  *  b) Permission is hereby granted, free of charge, to any person
  27  *     obtaining a copy of this software and associated documentation
  28  *     files (the "Software"), to deal in the Software without
  29  *     restriction, including without limitation the rights to use,
  30  *     copy, modify, merge, publish, distribute, sublicense, and/or
  31  *     sell copies of the Software, and to permit persons to whom the
  32  *     Software is furnished to do so, subject to the following
  33  *     conditions:
  34  *
  35  *     The above copyright notice and this permission notice shall be
  36  *     included in all copies or substantial portions of the Software.
  37  *
  38  *     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  39  *     EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
  40  *     OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  41  *     NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
  42  *     HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
  43  *     WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  44  *     FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  45  *     OTHER DEALINGS IN THE SOFTWARE.
  46  */
  47 /dts-v1/;
  48 #include "at91-sama5d27_som1.dtsi"
  49 #include <dt-bindings/mfd/atmel-flexcom.h>
  50 #include <dt-bindings/gpio/gpio.h>
  51
  52 / {
  53         model = "Atmel SAMA5D27 SOM1 EK";
  54         compatible = "atmel,sama5d27-som1-ek", "atmel,sama5d27-som1", "atmel,sama5d27", "atmel,sama5d2", "atmel,sama5";
  55
  56         aliases {
  57                 serial0 = &uart1;       /* DBGU */
  58                 serial1 = &uart4;       /* mikro BUS 1 */
  59                 serial2 = &uart2;       /* mikro BUS 2 */
  60                 i2c1    = &i2c1;
  61                 i2c2    = &i2c2;
  62         };
  63
  64         chosen {
  65                 stdout-path = "serial0:115200n8";
  66         };
  67
  68         ahb {
  69                 usb0: gadget@300000 {
  70                         atmel,vbus-gpio = <&pioA PIN_PD20 GPIO_ACTIVE_HIGH>;
  71                         pinctrl-names = "default";
  72                         pinctrl-0 = <&pinctrl_usba_vbus>;
  73                         status = "okay";
  74                 };
  75
  76                 usb1: ohci@400000 {
  77                         num-ports = <3>;
  78                         atmel,vbus-gpio = <0 /* &pioA PIN_PD20 GPIO_ACTIVE_HIGH */
  79                                            &pioA PIN_PA27 GPIO_ACTIVE_HIGH
  80                                            0
  81                                           >;
  82                         pinctrl-names = "default";
  83                         pinctrl-0 = <&pinctrl_usb_default>;
  84                         status = "okay";
  85                 };
  86
  87                 usb2: ehci@500000 {
  88                         status = "okay";
  89                 };
  90
  91                 sdmmc0: sdio-host@a0000000 {
  92                         bus-width = <8>;
  93                         pinctrl-names = "default";
  94                         pinctrl-0 = <&pinctrl_sdmmc0_default>;
  95                         status = "okay";
  96                 };
  97
  98                 sdmmc1: sdio-host@b0000000 {
  99                         bus-width = <4>;
 100                         pinctrl-names = "default";
 101                         pinctrl-0 = <&pinctrl_sdmmc1_default>;
 102                         status = "okay";
 103                 };
 104
 105                 apb {
 106                         isc: isc@f0008000 {
 107                                 pinctrl-names = "default";
 108                                 pinctrl-0 = <&pinctrl_isc_base &pinctrl_isc_data_8bit &pinctrl_isc_data_9_10 &pinctrl_isc_data_11_12>;
 109                                 status = "okay";
 110                         };
 111
 112                         spi0: spi@f8000000 {
 113                                 pinctrl-names = "default";
 114                                 pinctrl-0 = <&pinctrl_spi0_default>;
 115                                 status = "okay";
 116                         };
 117
 118                         macb0: ethernet@f8008000 {
 119                                 status = "okay";
 120                         };
 121
 122                         tcb0: timer@f800c000 {
 123                                 timer0: timer@0 {
 124                                         compatible = "atmel,tcb-timer";
 125                                         reg = <0>;
 126                                 };
 127
 128                                 timer1: timer@1 {
 129                                         compatible = "atmel,tcb-timer";
 130                                         reg = <1>;
 131                                 };
 132                         };
 133
 134                         uart1: serial@f8020000 {
 135                                 pinctrl-names = "default";
 136                                 pinctrl-0 = <&pinctrl_uart1_default>;
 137                                 atmel,use-dma-rx;
 138                                 atmel,use-dma-tx;
 139                                 status = "okay";
 140                         };
 141
 142                         uart2: serial@f8024000 {
 143                                 pinctrl-names = "default";
 144                                 pinctrl-0 = <&pinctrl_mikrobus2_uart>;
 145                                 atmel,use-dma-rx;
 146                                 atmel,use-dma-tx;
 147                                 status = "okay";
 148                         };
 149
 150                         pwm0: pwm@f802c000 {
 151                                 pinctrl-names = "default";
 152                                 pinctrl-0 = <&pinctrl_mikrobus1_pwm &pinctrl_mikrobus2_pwm>;
 153                                 status = "disabled"; /* Conflict with leds. */
 154                         };
 155
 156                         flx1: flexcom@f8038000 {
 157                                 atmel,flexcom-mode = <ATMEL_FLEXCOM_MODE_TWI>;
 158                                 status = "okay";
 159
 160                                 i2c2: i2c@600 {
 161                                         compatible = "atmel,sama5d2-i2c";
 162                                         reg = <0x600 0x200>;
 163                                         interrupts = <20 IRQ_TYPE_LEVEL_HIGH 7>;
 164                                         dmas = <0>, <0>;
 165                                         dma-names = "tx", "rx";
 166                                         #address-cells = <1>;
 167                                         #size-cells = <0>;
 168                                         clocks = <&flx1_clk>;
 169                                         pinctrl-names = "default";
 170                                         pinctrl-0 = <&pinctrl_mikrobus_i2c>;
 171                                         atmel,fifo-size = <16>;
 172                                         status = "okay";
 173                                 };
 174                         };
 175
 176                         shdwc@f8048010 {
 177                                 atmel,shdwc-debouncer = <976>;
 178                                 atmel,wakeup-rtc-timer;
 179
 180                                 input@0 {
 181                                         reg = <0>;
 182                                         atmel,wakeup-type = "low";
 183                                 };
 184                         };
 185
 186                         watchdog@f8048040 {
 187                                 status = "okay";
 188                         };
 189
 190                         uart3: serial@fc008000 {
 191                                 atmel,use-dma-rx;
 192                                 atmel,use-dma-tx;
 193                                 pinctrl-names = "default";
 194                                 pinctrl-0 = <&pinctrl_uart3_default>;
 195                                 status = "disabled"; /* Conflict with isc. */
 196                         };
 197
 198                         uart4: serial@fc00c000 {
 199                                 atmel,use-dma-rx;
 200                                 atmel,use-dma-tx;
 201                                 pinctrl-names = "default";
 202                                 pinctrl-0 = <&pinctrl_mikrobus1_uart>;
 203                                 status = "okay";
 204                         };
 205
 206                         flx3: flexcom@fc014000 {
 207                                 atmel,flexcom-mode = <ATMEL_FLEXCOM_MODE_SPI>;
 208                                 status = "disabled";
 209
 210                                 uart7: serial@200 {
 211                                         compatible = "atmel,at91sam9260-usart";
 212                                         reg = <0x200 0x200>;
 213                                         interrupts = <22 IRQ_TYPE_LEVEL_HIGH 7>;
 214                                         clocks = <&flx3_clk>;
 215                                         clock-names = "usart";
 216                                         pinctrl-names = "default";
 217                                         pinctrl-0 = <&pinctrl_flx3_default>;
 218                                         atmel,fifo-size = <32>;
 219                                         status = "disabled"; /* Conflict with isc. */
 220                                 };
 221
 222                                 spi2: spi@400 {
 223                                         compatible = "atmel,at91rm9200-spi";
 224                                         reg = <0x400 0x200>;
 225                                         interrupts = <22 IRQ_TYPE_LEVEL_HIGH 7>;
 226                                         clocks = <&flx3_clk>;
 227                                         clock-names = "spi_clk";
 228                                         pinctrl-names = "default";
 229                                         pinctrl-0 = <&pinctrl_flx3_default>;
 230                                         atmel,fifo-size = <16>;
 231                                         status = "disabled"; /* Conflict with isc. */
 232                                 };
 233                         };
 234
 235                         flx4: flexcom@fc018000 {
 236                                 atmel,flexcom-mode = <ATMEL_FLEXCOM_MODE_SPI>;
 237                                 status = "okay";
 238
 239                                 uart6: serial@200 {
 240                                         compatible = "atmel,at91sam9260-usart";
 241                                         reg = <0x200 0x200>;
 242                                         interrupts = <23 IRQ_TYPE_LEVEL_HIGH 7>;
 243                                         clocks = <&flx4_clk>;
 244                                         clock-names = "usart";
 245                                         pinctrl-names = "default";
 246                                         pinctrl-0 = <&pinctrl_flx4_default>;
 247                                         atmel,fifo-size = <32>;
 248                                         status = "disabled"; /* Conflict with spi3 and i2c3. */
 249                                 };
 250
 251                                 spi3: spi@400 {
 252                                         compatible = "atmel,at91rm9200-spi";
 253                                         reg = <0x400 0x200>;
 254                                         interrupts = <23 IRQ_TYPE_LEVEL_HIGH 7>;
 255                                         clocks = <&flx4_clk>;
 256                                         clock-names = "spi_clk";
 257                                         pinctrl-names = "default";
 258                                         pinctrl-0 = <&pinctrl_mikrobus_spi &pinctrl_mikrobus1_spi_cs &pinctrl_mikrobus2_spi_cs>;
 259                                         atmel,fifo-size = <16>;
 260                                         status = "okay"; /* Conflict with uart6 and i2c3. */
 261                                 };
 262
 263                                 i2c3: i2c@600 {
 264                                         compatible = "atmel,sama5d2-i2c";
 265                                         reg = <0x600 0x200>;
 266                                         interrupts = <23 IRQ_TYPE_LEVEL_HIGH 7>;
 267                                         dmas = <0>, <0>;
 268                                         dma-names = "tx", "rx";
 269                                         #address-cells = <1>;
 270                                         #size-cells = <0>;
 271                                         clocks = <&flx4_clk>;
 272                                         pinctrl-names = "default";
 273                                         pinctrl-0 = <&pinctrl_flx4_default>;
 274                                         atmel,fifo-size = <16>;
 275                                         status = "disabled"; /* Conflict with uart6 and spi3. */
 276                                 };
 277                         };
 278
 279                         i2c1: i2c@fc028000 {
 280                                 dmas = <0>, <0>;
 281                                 pinctrl-names = "default";
 282                                 pinctrl-0 = <&pinctrl_i2c1_default>;
 283                                 status = "okay";
 284                         };
 285
 286                         adc: adc@fc030000 {
 287                                 vddana-supply = <&vddana>;
 288                                 vref-supply = <&advref>;
 289
 290                                 status = "disabled";
 291                         };
 292
 293                         pinctrl@fc038000 {
 294
 295                                 pinctrl_can1_default: can1_default {
 296                                         pinmux = <PIN_PC26__CANTX1>,
 297                                                  <PIN_PC27__CANRX1>;
 298                                         bias-disable;
 299                                 };
 300
 301                                 pinctrl_flx3_default: flx3_default {
 302                                         pinmux = <PIN_PC20__FLEXCOM3_IO0>,
 303                                                  <PIN_PC19__FLEXCOM3_IO1>,
 304                                                  <PIN_PC18__FLEXCOM3_IO2>,
 305                                                  <PIN_PC21__FLEXCOM3_IO3>,
 306                                                  <PIN_PC22__FLEXCOM3_IO4>;
 307                                         bias-disable;
 308                                 };
 309
 310                                 pinctrl_i2c1_default: i2c1_default {
 311                                         pinmux = <PIN_PD4__TWD1>,
 312                                                  <PIN_PD5__TWCK1>;
 313                                         bias-disable;
 314                                 };
 315
 316                                 pinctrl_isc_base: isc_base {
 317                                         pinmux = <PIN_PC21__ISC_PCK>,
 318                                                  <PIN_PC22__ISC_VSYNC>,
 319                                                  <PIN_PC23__ISC_HSYNC>,
 320                                                  <PIN_PC24__ISC_MCK>;
 321                                         bias-disable;
 322                                 };
 323
 324                                 pinctrl_isc_data_8bit: isc_data_8bit {
 325                                         pinmux = <PIN_PC20__ISC_D11>,
 326                                                  <PIN_PC19__ISC_D10>,
 327                                                  <PIN_PC18__ISC_D9>,
 328                                                  <PIN_PC17__ISC_D8>,
 329                                                  <PIN_PC16__ISC_D7>,
 330                                                  <PIN_PC15__ISC_D6>,
 331                                                  <PIN_PC14__ISC_D5>,
 332                                                  <PIN_PC13__ISC_D4>;
 333                                         bias-disable;
 334                                 };
 335
 336                                 pinctrl_isc_data_9_10: isc_data_9_10 {
 337                                         pinmux = <PIN_PC12__ISC_D3>,
 338                                                  <PIN_PC11__ISC_D2>;
 339                                         bias-disable;
 340                                 };
 341
 342                                 pinctrl_isc_data_11_12: isc_data_11_12 {
 343                                         pinmux = <PIN_PC10__ISC_D1>,
 344                                                  <PIN_PC9__ISC_D0>;
 345                                         bias-disable;
 346                                 };
 347
 348                                 pinctrl_key_gpio_default: key_gpio_default {
 349                                         pinmux = <PIN_PA29__GPIO>;
 350                                         bias-pull-up;
 351                                 };
 352
 353                                 pinctrl_led_gpio_default: led_gpio_default {
 354                                         pinmux = <PIN_PA10__GPIO>,
 355                                                  <PIN_PB1__GPIO>,
 356                                                  <PIN_PA31__GPIO>;
 357                                         bias-pull-up;
 358                                 };
 359
 360                                 pinctrl_sdmmc0_default: sdmmc0_default {
 361                                         cmd_data {
 362                                                 pinmux = <PIN_PA1__SDMMC0_CMD>,
 363                                                          <PIN_PA2__SDMMC0_DAT0>,
 364                                                          <PIN_PA3__SDMMC0_DAT1>,
 365                                                          <PIN_PA4__SDMMC0_DAT2>,
 366                                                          <PIN_PA5__SDMMC0_DAT3>,
 367                                                          <PIN_PA6__SDMMC0_DAT4>,
 368                                                          <PIN_PA7__SDMMC0_DAT5>,
 369                                                          <PIN_PA8__SDMMC0_DAT6>,
 370                                                          <PIN_PA9__SDMMC0_DAT7>;
 371                                                 bias-disable;
 372                                         };
 373
 374                                         ck_cd_vddsel {
 375                                                 pinmux = <PIN_PA0__SDMMC0_CK>,
 376                                                          <PIN_PA11__SDMMC0_VDDSEL>,
 377                                                          <PIN_PA13__SDMMC0_CD>;
 378                                                 bias-disable;
 379                                         };
 380                                 };
 381
 382                                 pinctrl_sdmmc1_default: sdmmc1_default {
 383                                         cmd_data {
 384                                                 pinmux = <PIN_PA28__SDMMC1_CMD>,
 385                                                          <PIN_PA18__SDMMC1_DAT0>,
 386                                                          <PIN_PA19__SDMMC1_DAT1>,
 387                                                          <PIN_PA20__SDMMC1_DAT2>,
 388                                                          <PIN_PA21__SDMMC1_DAT3>;
 389                                                 bias-disable;
 390                                         };
 391
 392                                         conf-ck_cd {
 393                                                 pinmux = <PIN_PA22__SDMMC1_CK>,
 394                                                          <PIN_PA30__SDMMC1_CD>;
 395                                                 bias-disable;
 396                                         };
 397                                 };
 398
 399                                 pinctrl_spi0_default: spi0_default {
 400                                         pinmux = <PIN_PA14__SPI0_SPCK>,
 401                                                  <PIN_PA15__SPI0_MOSI>,
 402                                                  <PIN_PA16__SPI0_MISO>,
 403                                                  <PIN_PA17__SPI0_NPCS0>;
 404                                         bias-disable;
 405                                 };
 406
 407                                 pinctrl_uart1_default: uart1_default {
 408                                         pinmux = <PIN_PD2__URXD1>,
 409                                                  <PIN_PD3__UTXD1>;
 410                                         bias-disable;
 411                                 };
 412
 413                                 pinctrl_uart3_default: uart3_default {
 414                                         pinmux = <PIN_PC12__URXD3>,
 415                                                  <PIN_PC13__UTXD3>;
 416                                         bias-disable;
 417                                 };
 418
 419                                 pinctrl_usb_default: usb_default {
 420                                         pinmux = <PIN_PA27__GPIO>,
 421                                                  <PIN_PD19__GPIO>;
 422                                         bias-disable;
 423                                 };
 424
 425                                 pinctrl_usba_vbus: usba_vbus {
 426                                         pinmux = <PIN_PD20__GPIO>;
 427                                         bias-disable;
 428                                 };
 429
 430                                 pinctrl_mikrobus1_an: mikrobus1_an {
 431                                         pinmux = <PIN_PD25__GPIO>;
 432                                         bias-disable;
 433                                 };
 434
 435                                 pinctrl_mikrobus2_an: mikrobus2_an {
 436                                         pinmux = <PIN_PD26__GPIO>;
 437                                         bias-disable;
 438                                 };
 439
 440                                 pinctrl_mikrobus1_rst: mikrobus1_rst {
 441                                         pinmux = <PIN_PB2__GPIO>;
 442                                         bias-disable;
 443                                 };
 444
 445                                 pinctrl_mikrobus2_rst: mikrobus2_rst {
 446                                         pinmux = <PIN_PA26__GPIO>;
 447                                         bias-disable;
 448                                 };
 449
 450                                 pinctrl_mikrobus1_spi_cs: mikrobus1_spi_cs {
 451                                         pinmux = <PIN_PD0__FLEXCOM4_IO4>;
 452                                         bias-disable;
 453                                 };
 454
 455                                 pinctrl_mikrobus2_spi_cs: mikrobus2_spi_cs {
 456                                         pinmux = <PIN_PC31__FLEXCOM4_IO3>;
 457                                         bias-disable;
 458                                 };
 459
 460                                 pinctrl_mikrobus_spi: mikrobus_spi {
 461                                         pinmux = <PIN_PC28__FLEXCOM4_IO0>,
 462                                                  <PIN_PC29__FLEXCOM4_IO1>,
 463                                                  <PIN_PC30__FLEXCOM4_IO2>;
 464                                         bias-disable;
 465                                 };
 466
 467                                 pinctrl_mikrobus1_pwm: mikrobus1_pwm {
 468                                         pinmux = <PIN_PB1__PWML1>;
 469                                         bias-disable;
 470                                 };
 471
 472                                 pinctrl_mikrobus2_pwm: mikrobus2_pwm {
 473                                         pinmux = <PIN_PA31__PWML0>;
 474                                         bias-disable;
 475                                 };
 476
 477                                 pinctrl_mikrobus1_int: mikrobus1_int {
 478                                         pinmux = <PIN_PB0__GPIO>;
 479                                         bias-disable;
 480                                 };
 481
 482                                 pinctrl_mikrobus2_int: mikrobus2_int {
 483                                         pinmux = <PIN_PA25__GPIO>;
 484                                         bias-disable;
 485                                 };
 486
 487                                 pinctrl_mikrobus1_uart: mikrobus1_uart {
 488                                         pinmux = <PIN_PB3__URXD4>,
 489                                                  <PIN_PB4__UTXD4>;
 490                                         bias-disable;
 491                                 };
 492
 493                                 pinctrl_mikrobus2_uart: mikrobus2_uart {
 494                                         pinmux = <PIN_PD23__URXD2>,
 495                                                  <PIN_PD24__UTXD2>;
 496                                         bias-disable;
 497                                 };
 498
 499                                 pinctrl_mikrobus_i2c: mikrobus1_i2c {
 500                                         pinmux = <PIN_PA24__FLEXCOM1_IO0>,
 501                                                  <PIN_PA23__FLEXCOM1_IO1>;
 502                                         bias-disable;
 503                                 };
 504
 505                                 pinctrl_flx4_default: flx4_uart_default {
 506                                         pinmux = <PIN_PC28__FLEXCOM4_IO0>,
 507                                                  <PIN_PC29__FLEXCOM4_IO1>,
 508                                                  <PIN_PC30__FLEXCOM4_IO2>,
 509                                                  <PIN_PC31__FLEXCOM4_IO3>,
 510                                                  <PIN_PD0__FLEXCOM4_IO4>;
 511                                         bias-disable;
 512                                 };
 513                         };
 514
 515                         can1: can@fc050000 {
 516                                 pinctrl-names = "default";
 517                                 pinctrl-0 = <&pinctrl_can1_default>;
 518                                 status = "okay";
 519                         };
 520                 };
 521         };
 522
 523         gpio_keys {
 524                 compatible = "gpio-keys";
 525
 526                 pinctrl-names = "default";
 527                 pinctrl-0 = <&pinctrl_key_gpio_default>;
 528
 529                 pb4 {
 530                         label = "USER";
 531                         gpios = <&pioA PIN_PA29 GPIO_ACTIVE_LOW>;
 532                         linux,code = <0x104>;
 533                         wakeup-source;
 534                 };
 535         };
 536
 537         leds {
 538                 compatible = "gpio-leds";
 539                 pinctrl-names = "default";
 540                 pinctrl-0 = <&pinctrl_led_gpio_default>;
 541                 status = "okay"; /* Conflict with pwm0. */
 542
 543                 red {
 544                         label = "red";
 545                         gpios = <&pioA PIN_PA10 GPIO_ACTIVE_HIGH>;
 546                 };
 547
 548                 green {
 549                         label = "green";
 550                         gpios = <&pioA PIN_PB1 GPIO_ACTIVE_HIGH>;
 551                 };
 552
 553                 blue {
 554                         label = "blue";
 555                         gpios = <&pioA PIN_PA31 GPIO_ACTIVE_HIGH>;
 556                         linux,default-trigger = "heartbeat";
 557                 };
 558         };
 559
 560         vddin_3v3: fixed-regulator-vddin_3v3 {
 561                 compatible = "regulator-fixed";
 562
 563                 regulator-name = "VDDIN_3V3";
 564                 regulator-min-microvolt = <3300000>;
 565                 regulator-max-microvolt = <3300000>;
 566                 regulator-always-on;
 567                 regulator-boot-on;
 568                 status = "okay";
 569         };
 570
 571         vddana: fixed-regulator-vddana {
 572                 compatible = "regulator-fixed";
 573
 574                 regulator-name = "VDDANA";
 575                 regulator-min-microvolt = <3300000>;
 576                 regulator-max-microvolt = <3300000>;
 577                 regulator-always-on;
 578                 regulator-boot-on;
 579                 vin-supply = <&vddin_3v3>;
 580                 status = "okay";
 581         };
 582
 583         advref: fixed-regulator-advref {
 584                 compatible = "regulator-fixed";
 585
 586                 regulator-name = "advref";
 587                 regulator-min-microvolt = <3300000>;
 588                 regulator-max-microvolt = <3300000>;
 589                 regulator-always-on;
 590                 regulator-boot-on;
 591                 vin-supply = <&vddana>;
 592                 status = "okay";
 593         };
 594 };