arch/arm64/boot/dts/rockchip/rk3399-gru.dtsi

   1 /*
   2  * Google Gru (and derivatives) board device tree source
   3  *
   4  * Copyright 2016-2017 Google, Inc
   5  *
   6  * This file is dual-licensed: you can use it either under the terms
   7  * of the GPL or the X11 license, at your option. Note that this dual
   8  * licensing only applies to this file, and not this project as a
   9  * whole.
  10  *
  11  *  a) This file is free software; you can redistribute it and/or
  12  *     modify it under the terms of the GNU General Public License as
  13  *     published by the Free Software Foundation; either version 2 of the
  14  *     License, or (at your option) any later version.
  15  *
  16  *     This file is distributed in the hope that it will be useful,
  17  *     but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  *     GNU General Public License for more details.
  20  *
  21  *  Or, alternatively,
  22  *
  23  *  b) Permission is hereby granted, free of charge, to any person
  24  *     obtaining a copy of this software and associated documentation
  25  *     files (the "Software"), to deal in the Software without
  26  *     restriction, including without limitation the rights to use,
  27  *     copy, modify, merge, publish, distribute, sublicense, and/or
  28  *     sell copies of the Software, and to permit persons to whom the
  29  *     Software is furnished to do so, subject to the following
  30  *     conditions:
  31  *
  32  *     The above copyright notice and this permission notice shall be
  33  *     included in all copies or substantial portions of the Software.
  34  *
  35  *     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  36  *     EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
  37  *     OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  38  *     NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
  39  *     HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
  40  *     WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  41  *     FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  42  *     OTHER DEALINGS IN THE SOFTWARE.
  43  */
  44
  45 #include <dt-bindings/input/input.h>
  46 #include "rk3399.dtsi"
  47 #include "rk3399-op1-opp.dtsi"
  48
  49 / {
  50         chosen {
  51                 stdout-path = "serial2:115200n8";
  52         };
  53
  54         /*
  55          * Power Tree
  56          *
  57          * In general an attempt is made to include all rails called out by
  58          * the schematic as long as those rails interact in some way with
  59          * the AP.  AKA:
  60          * - Rails that only connect to the EC (or devices that the EC talks to)
  61          *   are not included.
  62          * - Rails _are_ included if the rails go to the AP even if the AP
  63          *   doesn't currently care about them / they are always on.  The idea
  64          *   here is that it makes it easier to map to the schematic or extend
  65          *   later.
  66          *
  67          * If two rails are substantially the same from the AP's point of
  68          * view, though, we won't create a full fixed regulator.  We'll just
  69          * put the child rail as an alias of the parent rail.  Sometimes rails
  70          * look the same to the AP because one of these is true:
  71          * - The EC controls the enable and the EC always enables a rail as
  72          *   long as the AP is running.
  73          * - The rails are actually connected to each other by a jumper and
  74          *   the distinction is just there to add clarity/flexibility to the
  75          *   schematic.
  76          */
  77
  78         ppvar_sys: ppvar-sys {
  79                 compatible = "regulator-fixed";
  80                 regulator-name = "ppvar_sys";
  81                 regulator-always-on;
  82                 regulator-boot-on;
  83         };
  84
  85         pp900_ap: pp900-ap {
  86                 compatible = "regulator-fixed";
  87                 regulator-name = "pp900_ap";
  88
  89                 /* EC turns on w/ pp900_ap_en; always on for AP */
  90                 regulator-always-on;
  91                 regulator-boot-on;
  92                 regulator-min-microvolt = <900000>;
  93                 regulator-max-microvolt = <900000>;
  94
  95                 vin-supply = <&ppvar_sys>;
  96         };
  97
  98         pp1200_lpddr: pp1200-lpddr {
  99                 compatible = "regulator-fixed";
 100                 regulator-name = "pp1200_lpddr";
 101
 102                 /* EC turns on w/ lpddr_pwr_en; always on for AP */
 103                 regulator-always-on;
 104                 regulator-boot-on;
 105                 regulator-min-microvolt = <1200000>;
 106                 regulator-max-microvolt = <1200000>;
 107
 108                 vin-supply = <&ppvar_sys>;
 109         };
 110
 111         pp1800: pp1800 {
 112                 compatible = "regulator-fixed";
 113                 regulator-name = "pp1800";
 114
 115                 /* Always on when ppvar_sys shows power good */
 116                 regulator-always-on;
 117                 regulator-boot-on;
 118                 regulator-min-microvolt = <1800000>;
 119                 regulator-max-microvolt = <1800000>;
 120
 121                 vin-supply = <&ppvar_sys>;
 122         };
 123
 124         pp3000: pp3000 {
 125                 compatible = "regulator-fixed";
 126                 regulator-name = "pp3000";
 127                 pinctrl-names = "default";
 128                 pinctrl-0 = <&pp3000_en>;
 129
 130                 enable-active-high;
 131                 gpio = <&gpio0 12 GPIO_ACTIVE_HIGH>;
 132
 133                 regulator-always-on;
 134                 regulator-boot-on;
 135                 regulator-min-microvolt = <3000000>;
 136                 regulator-max-microvolt = <3000000>;
 137
 138                 vin-supply = <&ppvar_sys>;
 139         };
 140
 141         pp3300: pp3300 {
 142                 compatible = "regulator-fixed";
 143                 regulator-name = "pp3300";
 144
 145                 /* Always on; plain and simple */
 146                 regulator-always-on;
 147                 regulator-boot-on;
 148                 regulator-min-microvolt = <3300000>;
 149                 regulator-max-microvolt = <3300000>;
 150
 151                 vin-supply = <&ppvar_sys>;
 152         };
 153
 154         pp5000: pp5000 {
 155                 compatible = "regulator-fixed";
 156                 regulator-name = "pp5000";
 157
 158                 /* EC turns on w/ pp5000_en; always on for AP */
 159                 regulator-always-on;
 160                 regulator-boot-on;
 161                 regulator-min-microvolt = <5000000>;
 162                 regulator-max-microvolt = <5000000>;
 163
 164                 vin-supply = <&ppvar_sys>;
 165         };
 166
 167         ppvar_bigcpu_pwm: ppvar-bigcpu-pwm {
 168                 compatible = "pwm-regulator";
 169                 regulator-name = "ppvar_bigcpu_pwm";
 170
 171                 pwms = <&pwm1 0 3337 0>;
 172                 pwm-supply = <&ppvar_sys>;
 173                 pwm-dutycycle-range = <100 0>;
 174                 pwm-dutycycle-unit = <100>;
 175
 176                 /* EC turns on w/ ap_core_en; always on for AP */
 177                 regulator-always-on;
 178                 regulator-boot-on;
 179                 regulator-min-microvolt = <800107>;
 180                 regulator-max-microvolt = <1302232>;
 181         };
 182
 183         ppvar_bigcpu: ppvar-bigcpu {
 184                 compatible = "vctrl-regulator";
 185                 regulator-name = "ppvar_bigcpu";
 186
 187                 regulator-min-microvolt = <800107>;
 188                 regulator-max-microvolt = <1302232>;
 189
 190                 ctrl-supply = <&ppvar_bigcpu_pwm>;
 191                 ctrl-voltage-range = <800107 1302232>;
 192
 193                 regulator-settling-time-up-us = <322>;
 194                 min-slew-down-rate = <225>;
 195                 ovp-threshold-percent = <16>;
 196         };
 197
 198         ppvar_litcpu_pwm: ppvar-litcpu-pwm {
 199                 compatible = "pwm-regulator";
 200                 regulator-name = "ppvar_litcpu_pwm";
 201
 202                 pwms = <&pwm2 0 3337 0>;
 203                 pwm-supply = <&ppvar_sys>;
 204                 pwm-dutycycle-range = <100 0>;
 205                 pwm-dutycycle-unit = <100>;
 206
 207                 /* EC turns on w/ ap_core_en; always on for AP */
 208                 regulator-always-on;
 209                 regulator-boot-on;
 210                 regulator-min-microvolt = <797743>;
 211                 regulator-max-microvolt = <1307837>;
 212         };
 213
 214         ppvar_litcpu: ppvar-litcpu {
 215                 compatible = "vctrl-regulator";
 216                 regulator-name = "ppvar_litcpu";
 217
 218                 regulator-min-microvolt = <797743>;
 219                 regulator-max-microvolt = <1307837>;
 220
 221                 ctrl-supply = <&ppvar_litcpu_pwm>;
 222                 ctrl-voltage-range = <797743 1307837>;
 223
 224                 regulator-settling-time-up-us = <384>;
 225                 min-slew-down-rate = <225>;
 226                 ovp-threshold-percent = <16>;
 227         };
 228
 229         ppvar_gpu_pwm: ppvar-gpu-pwm {
 230                 compatible = "pwm-regulator";
 231                 regulator-name = "ppvar_gpu_pwm";
 232
 233                 pwms = <&pwm0 0 3337 0>;
 234                 pwm-supply = <&ppvar_sys>;
 235                 pwm-dutycycle-range = <100 0>;
 236                 pwm-dutycycle-unit = <100>;
 237
 238                 /* EC turns on w/ ap_core_en; always on for AP */
 239                 regulator-always-on;
 240                 regulator-boot-on;
 241                 regulator-min-microvolt = <786384>;
 242                 regulator-max-microvolt = <1217747>;
 243         };
 244
 245         ppvar_gpu: ppvar-gpu {
 246                 compatible = "vctrl-regulator";
 247                 regulator-name = "ppvar_gpu";
 248
 249                 regulator-min-microvolt = <786384>;
 250                 regulator-max-microvolt = <1217747>;
 251
 252                 ctrl-supply = <&ppvar_gpu_pwm>;
 253                 ctrl-voltage-range = <786384 1217747>;
 254
 255                 regulator-settling-time-up-us = <390>;
 256                 min-slew-down-rate = <225>;
 257                 ovp-threshold-percent = <16>;
 258         };
 259
 260         ppvar_centerlogic_pwm: ppvar-centerlogic-pwm {
 261                 compatible = "pwm-regulator";
 262                 regulator-name = "ppvar_centerlogic_pwm";
 263
 264                 pwms = <&pwm3 0 3337 0>;
 265                 pwm-supply = <&ppvar_sys>;
 266                 pwm-dutycycle-range = <100 0>;
 267                 pwm-dutycycle-unit = <100>;
 268
 269                 /* EC turns on w/ ppvar_centerlogic_en; always on for AP */
 270                 regulator-always-on;
 271                 regulator-boot-on;
 272                 regulator-min-microvolt = <799434>;
 273                 regulator-max-microvolt = <1049925>;
 274         };
 275
 276         ppvar_centerlogic: ppvar-centerlogic {
 277                 compatible = "vctrl-regulator";
 278                 regulator-name = "ppvar_centerlogic";
 279
 280                 regulator-min-microvolt = <799434>;
 281                 regulator-max-microvolt = <1049925>;
 282
 283                 ctrl-supply = <&ppvar_centerlogic_pwm>;
 284                 ctrl-voltage-range = <799434 1049925>;
 285
 286                 regulator-settling-time-up-us = <378>;
 287                 min-slew-down-rate = <225>;
 288                 ovp-threshold-percent = <16>;
 289         };
 290
 291         /* Schematics call this PPVAR even though it's fixed */
 292         ppvar_logic: ppvar-logic {
 293                 compatible = "regulator-fixed";
 294                 regulator-name = "ppvar_logic";
 295
 296                 /* EC turns on w/ ppvar_logic_en; always on for AP */
 297                 regulator-always-on;
 298                 regulator-boot-on;
 299                 regulator-min-microvolt = <900000>;
 300                 regulator-max-microvolt = <900000>;
 301
 302                 vin-supply = <&ppvar_sys>;
 303         };
 304
 305         /* EC turns on w/ pp900_ddrpll_en */
 306         pp900_ddrpll: pp900-ap {
 307         };
 308
 309         /* EC turns on w/ pp900_pcie_en */
 310         pp900_pcie: pp900-ap {
 311         };
 312
 313         /* EC turns on w/ pp900_pll_en */
 314         pp900_pll: pp900-ap {
 315         };
 316
 317         /* EC turns on w/ pp900_pmu_en */
 318         pp900_pmu: pp900-ap {
 319         };
 320
 321         /* EC turns on w/ pp900_usb_en */
 322         pp900_usb: pp900-ap {
 323         };
 324
 325         /* EC turns on w/ pp1800_s0_en_l */
 326         pp1800_ap_io: pp1800_emmc: pp1800_nfc: pp1800_s0: pp1800 {
 327         };
 328
 329         /* EC turns on w/ pp1800_avdd_en_l */
 330         pp1800_avdd: pp1800 {
 331         };
 332
 333         /* EC turns on w/ pp1800_lid_en_l */
 334         pp1800_lid: pp1800_mic: pp1800 {
 335         };
 336
 337         /* EC turns on w/ lpddr_pwr_en */
 338         pp1800_lpddr: pp1800 {
 339         };
 340
 341         /* EC turns on w/ pp1800_pmu_en_l */
 342         pp1800_pmu: pp1800 {
 343         };
 344
 345         /* EC turns on w/ pp1800_usb_en_l */
 346         pp1800_usb: pp1800 {
 347         };
 348
 349         pp1500_ap_io: pp1500-ap-io {
 350                 compatible = "regulator-fixed";
 351                 regulator-name = "pp1500_ap_io";
 352                 pinctrl-names = "default";
 353                 pinctrl-0 = <&pp1500_en>;
 354
 355                 enable-active-high;
 356                 gpio = <&gpio0 10 GPIO_ACTIVE_HIGH>;
 357
 358                 regulator-always-on;
 359                 regulator-boot-on;
 360                 regulator-min-microvolt = <1500000>;
 361                 regulator-max-microvolt = <1500000>;
 362
 363                 vin-supply = <&pp1800>;
 364         };
 365
 366         pp1800_audio: pp1800-audio {
 367                 compatible = "regulator-fixed";
 368                 regulator-name = "pp1800_audio";
 369                 pinctrl-names = "default";
 370                 pinctrl-0 = <&pp1800_audio_en>;
 371
 372                 enable-active-high;
 373                 gpio = <&gpio0 2 GPIO_ACTIVE_HIGH>;
 374
 375                 regulator-always-on;
 376                 regulator-boot-on;
 377
 378                 vin-supply = <&pp1800>;
 379         };
 380
 381         /* gpio is shared with pp3300_wifi_bt */
 382         pp1800_pcie: pp1800-pcie {
 383                 compatible = "regulator-fixed";
 384                 regulator-name = "pp1800_pcie";
 385                 pinctrl-names = "default";
 386                 pinctrl-0 = <&wlan_module_pd_l>;
 387
 388                 enable-active-high;
 389                 gpio = <&gpio0 4 GPIO_ACTIVE_HIGH>;
 390
 391                 /*
 392                  * Need to wait 1ms + ramp-up time before we can power on WiFi.
 393                  * This has been approximated as 8ms total.
 394                  */
 395                 regulator-enable-ramp-delay = <8000>;
 396
 397                 vin-supply = <&pp1800>;
 398         };
 399
 400         /*
 401          * This is a bit of a hack. The WiFi module should be reset at least
 402          * 1ms after its regulators have ramped up (max rampup time is ~7ms).
 403          * With some stretching of the imagination, we can call the 1.8V
 404          * regulator a supply.
 405          */
 406         wlan_pd_n: wlan-pd-n {
 407                 compatible = "regulator-fixed";
 408                 regulator-name = "wlan_pd_n";
 409
 410                 /* Note the wlan_module_reset_l pinctrl */
 411                 enable-active-high;
 412                 gpio = <&gpio1 11 GPIO_ACTIVE_HIGH>;
 413
 414                 vin-supply = <&pp1800_pcie>;
 415         };
 416
 417         /* Always on; plain and simple */
 418         pp3000_ap: pp3000_emmc: pp3000 {
 419         };
 420
 421         pp3000_sd_slot: pp3000-sd-slot {
 422                 compatible = "regulator-fixed";
 423                 regulator-name = "pp3000_sd_slot";
 424                 pinctrl-names = "default";
 425                 pinctrl-0 = <&sd_slot_pwr_en>;
 426
 427                 enable-active-high;
 428                 gpio = <&gpio4 29 GPIO_ACTIVE_HIGH>;
 429
 430                 vin-supply = <&pp3000>;
 431         };
 432
 433         /*
 434          * Technically, this is a small abuse of 'regulator-gpio'; this
 435          * regulator is a mux between pp1800 and pp3300. pp1800 and pp3300 are
 436          * always on though, so it is sufficient to simply control the mux
 437          * here.
 438          */
 439         ppvar_sd_card_io: ppvar-sd-card-io {
 440                 compatible = "regulator-gpio";
 441                 regulator-name = "ppvar_sd_card_io";
 442                 pinctrl-names = "default";
 443                 pinctrl-0 = <&sd_io_pwr_en &sd_pwr_1800_sel>;
 444
 445                 enable-active-high;
 446                 enable-gpio = <&gpio2 2 GPIO_ACTIVE_HIGH>;
 447                 gpios = <&gpio2 28 GPIO_ACTIVE_HIGH>;
 448                 states = <1800000 0x1
 449                           3000000 0x0>;
 450
 451                 regulator-min-microvolt = <1800000>;
 452                 regulator-max-microvolt = <3000000>;
 453         };
 454
 455         /* EC turns on w/ pp3300_trackpad_en_l */
 456         pp3300_trackpad: pp3300-trackpad {
 457         };
 458
 459         /* EC turns on w/ pp3300_usb_en_l */
 460         pp3300_usb: pp3300 {
 461         };
 462
 463         pp3300_disp: pp3300-disp {
 464                 compatible = "regulator-fixed";
 465                 regulator-name = "pp3300_disp";
 466                 pinctrl-names = "default";
 467                 pinctrl-0 = <&pp3300_disp_en>;
 468
 469                 enable-active-high;
 470                 gpio = <&gpio4 27 GPIO_ACTIVE_HIGH>;
 471
 472                 startup-delay-us = <2000>;
 473                 vin-supply = <&pp3300>;
 474         };
 475
 476         /* gpio is shared with pp1800_pcie and pinctrl is set there */
 477         pp3300_wifi_bt: pp3300-wifi-bt {
 478                 compatible = "regulator-fixed";
 479                 regulator-name = "pp3300_wifi_bt";
 480
 481                 enable-active-high;
 482                 gpio = <&gpio0 4 GPIO_ACTIVE_HIGH>;
 483
 484                 vin-supply = <&pp3300>;
 485         };
 486
 487         /* EC turns on w/ usb_a_en */
 488         pp5000_usb_a_vbus: pp5000 {
 489         };
 490
 491         gpio_keys: gpio-keys {
 492                 compatible = "gpio-keys";
 493                 pinctrl-names = "default";
 494                 pinctrl-0 = <&bt_host_wake_l>;
 495
 496                 wake-on-bt {
 497                         label = "Wake-on-Bluetooth";
 498                         gpios = <&gpio0 3 GPIO_ACTIVE_LOW>;
 499                         linux,code = <KEY_WAKEUP>;
 500                         wakeup-source;
 501                 };
 502         };
 503
 504         max98357a: max98357a {
 505                 compatible = "maxim,max98357a";
 506                 pinctrl-names = "default";
 507                 pinctrl-0 = <&sdmode_en>;
 508                 sdmode-gpios = <&gpio1 2 GPIO_ACTIVE_HIGH>;
 509                 sdmode-delay = <2>;
 510                 #sound-dai-cells = <0>;
 511                 status = "okay";
 512         };
 513
 514         sound {
 515                 compatible = "rockchip,rk3399-gru-sound";
 516                 rockchip,cpu = <&i2s0 &i2s2>;
 517                 rockchip,codec = <&max98357a &headsetcodec &codec>;
 518         };
 519 };
 520
 521 /*
 522  * Set some suspend operating points to avoid OVP in suspend
 523  *
 524  * When we go into S3 ARM Trusted Firmware will transition our PWM regulators
 525  * from wherever they're at back to the "default" operating point (whatever
 526  * voltage we get when we set the PWM pins to "input").
 527  *
 528  * This quick transition under light load has the possibility to trigger the
 529  * regulator "over voltage protection" (OVP).
 530  *
 531  * To make extra certain that we don't hit this OVP at suspend time, we'll
 532  * transition to a voltage that's much closer to the default (~1.0 V) so that
 533  * there will not be a big jump.  Technically we only need to get within 200 mV
 534  * of the default voltage, but the speed here should be fast enough and we need
 535  * suspend/resume to be rock solid.
 536  */
 537
 538 &cluster0_opp {
 539         opp05 {
 540                 opp-suspend;
 541         };
 542 };
 543
 544 &cluster1_opp {
 545         opp06 {
 546                 opp-suspend;
 547         };
 548 };
 549
 550 &cpu_l0 {
 551         cpu-supply = <&ppvar_litcpu>;
 552 };
 553
 554 &cpu_l1 {
 555         cpu-supply = <&ppvar_litcpu>;
 556 };
 557
 558 &cpu_l2 {
 559         cpu-supply = <&ppvar_litcpu>;
 560 };
 561
 562 &cpu_l3 {
 563         cpu-supply = <&ppvar_litcpu>;
 564 };
 565
 566 &cpu_b0 {
 567         cpu-supply = <&ppvar_bigcpu>;
 568 };
 569
 570 &cpu_b1 {
 571         cpu-supply = <&ppvar_bigcpu>;
 572 };
 573
 574
 575 &cru {
 576         assigned-clocks =
 577                 <&cru PLL_GPLL>, <&cru PLL_CPLL>,
 578                 <&cru PLL_NPLL>,
 579                 <&cru ACLK_PERIHP>, <&cru HCLK_PERIHP>,
 580                 <&cru PCLK_PERIHP>,
 581                 <&cru ACLK_PERILP0>, <&cru HCLK_PERILP0>,
 582                 <&cru PCLK_PERILP0>, <&cru ACLK_CCI>,
 583                 <&cru HCLK_PERILP1>, <&cru PCLK_PERILP1>;
 584         assigned-clock-rates =
 585                 <600000000>, <800000000>,
 586                 <1000000000>,
 587                 <150000000>, <75000000>,
 588                 <37500000>,
 589                 <100000000>, <100000000>,
 590                 <50000000>, <800000000>,
 591                 <100000000>, <50000000>;
 592 };
 593
 594 &emmc_phy {
 595         status = "okay";
 596 };
 597
 598 &gpu {
 599         mali-supply = <&ppvar_gpu>;
 600         status = "okay";
 601 };
 602
 603 ap_i2c_mic: &i2c1 {
 604         status = "okay";
 605
 606         clock-frequency = <400000>;
 607
 608         /* These are relatively safe rise/fall times */
 609         i2c-scl-falling-time-ns = <50>;
 610         i2c-scl-rising-time-ns = <300>;
 611
 612         headsetcodec: rt5514@57 {
 613                 compatible = "realtek,rt5514";
 614                 reg = <0x57>;
 615                 realtek,dmic-init-delay-ms = <20>;
 616         };
 617 };
 618
 619 ap_i2c_ts: &i2c3 {
 620         status = "okay";
 621
 622         clock-frequency = <400000>;
 623
 624         /* These are relatively safe rise/fall times */
 625         i2c-scl-falling-time-ns = <50>;
 626         i2c-scl-rising-time-ns = <300>;
 627 };
 628
 629 ap_i2c_tp: &i2c5 {
 630         status = "okay";
 631
 632         clock-frequency = <400000>;
 633
 634         /* These are relatively safe rise/fall times */
 635         i2c-scl-falling-time-ns = <50>;
 636         i2c-scl-rising-time-ns = <300>;
 637
 638         /*
 639          * Note strange pullup enable.  Apparently this avoids leakage but
 640          * still allows us to get nice 4.7K pullups for high speed i2c
 641          * transfers.  Basically we want the pullup on whenever the ap is
 642          * alive, so the "en" pin just gets set to output high.
 643          */
 644         pinctrl-0 = <&i2c5_xfer &ap_i2c_tp_pu_en>;
 645 };
 646
 647 ap_i2c_audio: &i2c8 {
 648         status = "okay";
 649
 650         clock-frequency = <400000>;
 651
 652         /* These are relatively safe rise/fall times */
 653         i2c-scl-falling-time-ns = <50>;
 654         i2c-scl-rising-time-ns = <300>;
 655
 656         codec: da7219@1a {
 657                 compatible = "dlg,da7219";
 658                 reg = <0x1a>;
 659                 interrupt-parent = <&gpio1>;
 660                 interrupts = <23 IRQ_TYPE_LEVEL_LOW>;
 661                 clocks = <&cru SCLK_I2S_8CH_OUT>;
 662                 clock-names = "mclk";
 663                 dlg,micbias-lvl = <2600>;
 664                 dlg,mic-amp-in-sel = "diff";
 665                 pinctrl-names = "default";
 666                 pinctrl-0 = <&headset_int_l>;
 667                 VDD-supply = <&pp1800>;
 668                 VDDMIC-supply = <&pp3300>;
 669                 VDDIO-supply = <&pp1800>;
 670
 671                 da7219_aad {
 672                         dlg,adc-1bit-rpt = <1>;
 673                         dlg,btn-avg = <4>;
 674                         dlg,btn-cfg = <50>;
 675                         dlg,mic-det-thr = <500>;
 676                         dlg,jack-ins-deb = <20>;
 677                         dlg,jack-det-rate = "32ms_64ms";
 678                         dlg,jack-rem-deb = <1>;
 679
 680                         dlg,a-d-btn-thr = <0xa>;
 681                         dlg,d-b-btn-thr = <0x16>;
 682                         dlg,b-c-btn-thr = <0x21>;
 683                         dlg,c-mic-btn-thr = <0x3E>;
 684                 };
 685         };
 686 };
 687
 688 &i2s0 {
 689         status = "okay";
 690 };
 691
 692 &i2s2 {
 693         status = "okay";
 694 };
 695
 696 &io_domains {
 697         status = "okay";
 698
 699         audio-supply = <&pp1800_audio>;         /* APIO5_VDD;  3d 4a */
 700         bt656-supply = <&pp1800_ap_io>;         /* APIO2_VDD;  2a 2b */
 701         gpio1830-supply = <&pp3000_ap>;         /* APIO4_VDD;  4c 4d */
 702         sdmmc-supply = <&ppvar_sd_card_io>;     /* SDMMC0_VDD; 4b    */
 703 };
 704
 705 &pcie0 {
 706         status = "okay";
 707
 708         ep-gpios = <&gpio2 27 GPIO_ACTIVE_HIGH>;
 709         pinctrl-names = "default";
 710         pinctrl-0 = <&pcie_clkreqn_cpm>, <&wifi_perst_l>;
 711         vpcie3v3-supply = <&pp3300_wifi_bt>;
 712         vpcie1v8-supply = <&wlan_pd_n>; /* HACK: see &wlan_pd_n */
 713         vpcie0v9-supply = <&pp900_pcie>;
 714
 715         pci_rootport: pcie@0,0 {
 716                 reg = <0x83000000 0x0 0x00000000 0x0 0x00000000>;
 717                 #address-cells = <3>;
 718                 #size-cells = <2>;
 719                 ranges;
 720
 721                 mvl_wifi: wifi@0,0 {
 722                         compatible = "pci1b4b,2b42";
 723                         reg = <0x83010000 0x0 0x00000000 0x0 0x00100000
 724                                0x83010000 0x0 0x00100000 0x0 0x00100000>;
 725                         interrupt-parent = <&gpio0>;
 726                         interrupts = <8 IRQ_TYPE_LEVEL_LOW>;
 727                         pinctrl-names = "default";
 728                         pinctrl-0 = <&wlan_host_wake_l>;
 729                         wakeup-source;
 730                 };
 731         };
 732 };
 733
 734 &pcie_phy {
 735         status = "okay";
 736 };
 737
 738 &pmu_io_domains {
 739         status = "okay";
 740
 741         pmu1830-supply = <&pp1800_pmu>;         /* PMUIO2_VDD */
 742 };
 743
 744 &pwm0 {
 745         status = "okay";
 746 };
 747
 748 &pwm1 {
 749         status = "okay";
 750 };
 751
 752 &pwm2 {
 753         status = "okay";
 754 };
 755
 756 &pwm3 {
 757         status = "okay";
 758 };
 759
 760 &sdhci {
 761         /*
 762          * Signal integrity isn't great at 200 MHz and 150 MHz (DDR) gives the
 763          * same (or nearly the same) performance for all eMMC that are intended
 764          * to be used.
 765          */
 766         assigned-clock-rates = <150000000>;
 767
 768         bus-width = <8>;
 769         mmc-hs400-1_8v;
 770         mmc-hs400-enhanced-strobe;
 771         non-removable;
 772         status = "okay";
 773 };
 774
 775 &sdmmc {
 776         status = "okay";
 777
 778         /*
 779          * Note: configure "sdmmc_cd" as card detect even though it's actually
 780          * hooked to ground.  Because we specified "cd-gpios" below dw_mmc
 781          * should be ignoring card detect anyway.  Specifying the pin as
 782          * sdmmc_cd means that even if you've got GRF_SOC_CON7[12] (force_jtag)
 783          * turned on that the system will still make sure the port is
 784          * configured as SDMMC and not JTAG.
 785          */
 786         pinctrl-names = "default";
 787         pinctrl-0 = <&sdmmc_clk &sdmmc_cmd &sdmmc_cd &sdmmc_cd_gpio
 788                      &sdmmc_bus4>;
 789
 790         bus-width = <4>;
 791         cap-mmc-highspeed;
 792         cap-sd-highspeed;
 793         cd-gpios = <&gpio4 24 GPIO_ACTIVE_LOW>;
 794         disable-wp;
 795         sd-uhs-sdr12;
 796         sd-uhs-sdr25;
 797         sd-uhs-sdr50;
 798         sd-uhs-sdr104;
 799         vmmc-supply = <&pp3000_sd_slot>;
 800         vqmmc-supply = <&ppvar_sd_card_io>;
 801 };
 802
 803 &spi1 {
 804         status = "okay";
 805
 806         pinctrl-names = "default", "sleep";
 807         pinctrl-1 = <&spi1_sleep>;
 808
 809         spiflash@0 {
 810                 compatible = "jedec,spi-nor";
 811                 reg = <0>;
 812
 813                 /* May run faster once verified. */
 814                 spi-max-frequency = <10000000>;
 815         };
 816 };
 817
 818 &spi2 {
 819         status = "okay";
 820
 821         wacky_spi_audio: spi2@0 {
 822                 compatible = "realtek,rt5514";
 823                 reg = <0>;
 824                 interrupt-parent = <&gpio1>;
 825                 interrupts = <13 IRQ_TYPE_LEVEL_HIGH>;
 826                 pinctrl-names = "default";
 827                 pinctrl-0 = <&mic_int>;
 828                 /* May run faster once verified. */
 829                 spi-max-frequency = <10000000>;
 830                 wakeup-source;
 831         };
 832 };
 833
 834 &spi5 {
 835         status = "okay";
 836
 837         cros_ec: ec@0 {
 838                 compatible = "google,cros-ec-spi";
 839                 reg = <0>;
 840                 interrupt-parent = <&gpio0>;
 841                 interrupts = <1 IRQ_TYPE_LEVEL_LOW>;
 842                 pinctrl-names = "default";
 843                 pinctrl-0 = <&ec_ap_int_l>;
 844                 spi-max-frequency = <3000000>;
 845
 846                 i2c_tunnel: i2c-tunnel {
 847                         compatible = "google,cros-ec-i2c-tunnel";
 848                         google,remote-bus = <4>;
 849                         #address-cells = <1>;
 850                         #size-cells = <0>;
 851                 };
 852
 853                 cros_ec_pwm: ec-pwm {
 854                         compatible = "google,cros-ec-pwm";
 855                         #pwm-cells = <1>;
 856                 };
 857         };
 858 };
 859
 860 &tsadc {
 861         status = "okay";
 862
 863         rockchip,hw-tshut-mode = <1>; /* tshut mode 0:CRU 1:GPIO */
 864         rockchip,hw-tshut-polarity = <1>; /* tshut polarity 0:LOW 1:HIGH */
 865 };
 866
 867 &u2phy0 {
 868         status = "okay";
 869 };
 870
 871 &u2phy1 {
 872         status = "okay";
 873 };
 874
 875 &u2phy0_host {
 876         status = "okay";
 877 };
 878
 879 &u2phy1_host {
 880         status = "okay";
 881 };
 882
 883 &u2phy0_otg {
 884         status = "okay";
 885 };
 886
 887 &u2phy1_otg {
 888         status = "okay";
 889 };
 890
 891 &uart2 {
 892         status = "okay";
 893 };
 894
 895 &usb_host0_ehci {
 896         status = "okay";
 897 };
 898
 899 &usb_host0_ohci {
 900         status = "okay";
 901 };
 902
 903 &usb_host1_ehci {
 904         status = "okay";
 905 };
 906
 907 &usb_host1_ohci {
 908         status = "okay";
 909 };
 910
 911 &usbdrd3_0 {
 912         status = "okay";
 913 };
 914
 915 &usbdrd_dwc3_0 {
 916         status = "okay";
 917         dr_mode = "host";
 918 };
 919
 920 &usbdrd3_1 {
 921         status = "okay";
 922 };
 923
 924 &usbdrd_dwc3_1 {
 925         status = "okay";
 926         dr_mode = "host";
 927 };
 928
 929 #include <arm/cros-ec-keyboard.dtsi>
 930 #include <arm/cros-ec-sbs.dtsi>
 931
 932 &pinctrl {
 933         /*
 934          * pinctrl settings for pins that have no real owners.
 935          *
 936          * At the moment settings are identical for S0 and S3, but if we later
 937          * need to configure things differently for S3 we'll adjust here.
 938          */
 939         pinctrl-names = "default";
 940         pinctrl-0 = <
 941                 &ap_pwroff      /* AP will auto-assert this when in S3 */
 942                 &clk_32k        /* This pin is always 32k on gru boards */
 943
 944                 /*
 945                  * We want this driven low ASAP; firmware should help us, but
 946                  * we can help ourselves too.
 947                  */
 948                 &wlan_module_reset_l
 949         >;
 950
 951         pcfg_output_low: pcfg-output-low {
 952                 output-low;
 953         };
 954
 955         pcfg_output_high: pcfg-output-high {
 956                 output-high;
 957         };
 958
 959         pcfg_pull_none_8ma: pcfg-pull-none-8ma {
 960                 bias-disable;
 961                 drive-strength = <8>;
 962         };
 963
 964         backlight-enable {
 965                 bl_en: bl-en {
 966                         rockchip,pins = <1 17 RK_FUNC_GPIO &pcfg_pull_none>;
 967                 };
 968         };
 969
 970         cros-ec {
 971                 ec_ap_int_l: ec-ap-int-l {
 972                         rockchip,pins = <RK_GPIO0 1 RK_FUNC_GPIO &pcfg_pull_up>;
 973                 };
 974         };
 975
 976         discrete-regulators {
 977                 pp1500_en: pp1500-en {
 978                         rockchip,pins = <RK_GPIO0 10 RK_FUNC_GPIO
 979                                          &pcfg_pull_none>;
 980                 };
 981
 982                 pp1800_audio_en: pp1800-audio-en {
 983                         rockchip,pins = <RK_GPIO0 2 RK_FUNC_GPIO
 984                                          &pcfg_pull_down>;
 985                 };
 986
 987                 pp3300_disp_en: pp3300-disp-en {
 988                         rockchip,pins = <RK_GPIO4 27 RK_FUNC_GPIO
 989                                          &pcfg_pull_none>;
 990                 };
 991
 992                 pp3000_en: pp3000-en {
 993                         rockchip,pins = <RK_GPIO0 12 RK_FUNC_GPIO
 994                                          &pcfg_pull_none>;
 995                 };
 996
 997                 sd_io_pwr_en: sd-io-pwr-en {
 998                         rockchip,pins = <RK_GPIO2 2 RK_FUNC_GPIO
 999                                          &pcfg_pull_none>;
1000                 };
1001
1002                 sd_pwr_1800_sel: sd-pwr-1800-sel {
1003                         rockchip,pins = <RK_GPIO2 28 RK_FUNC_GPIO
1004                                          &pcfg_pull_none>;
1005                 };
1006
1007                 sd_slot_pwr_en: sd-slot-pwr-en {
1008                         rockchip,pins = <RK_GPIO4 29 RK_FUNC_GPIO
1009                                          &pcfg_pull_none>;
1010                 };
1011
1012                 wlan_module_pd_l: wlan-module-pd-l {
1013                         rockchip,pins = <RK_GPIO0 4 RK_FUNC_GPIO
1014                                          &pcfg_pull_down>;
1015                 };
1016         };
1017
1018         codec {
1019                 /* Has external pullup */
1020                 headset_int_l: headset-int-l {
1021                         rockchip,pins = <1 23 RK_FUNC_GPIO &pcfg_pull_none>;
1022                 };
1023
1024                 mic_int: mic-int {
1025                         rockchip,pins = <1 13 RK_FUNC_GPIO &pcfg_pull_down>;
1026                 };
1027         };
1028
1029         max98357a {
1030                 sdmode_en: sdmode-en {
1031                         rockchip,pins = <1 2 RK_FUNC_GPIO &pcfg_pull_down>;
1032                 };
1033         };
1034
1035         pcie {
1036                 pcie_clkreqn_cpm: pci-clkreqn-cpm {
1037                         /*
1038                          * Since our pcie doesn't support ClockPM(CPM), we want
1039                          * to hack this as gpio, so the EP could be able to
1040                          * de-assert it along and make ClockPM(CPM) work.
1041                          */
1042                         rockchip,pins = <2 26 RK_FUNC_GPIO &pcfg_pull_none>;
1043                 };
1044         };
1045
1046         sdmmc {
1047                 /*
1048                  * We run sdmmc at max speed; bump up drive strength.
1049                  * We also have external pulls, so disable the internal ones.
1050                  */
1051                 sdmmc_bus4: sdmmc-bus4 {
1052                         rockchip,pins =
1053                                 <4 8 RK_FUNC_1 &pcfg_pull_none_8ma>,
1054                                 <4 9 RK_FUNC_1 &pcfg_pull_none_8ma>,
1055                                 <4 10 RK_FUNC_1 &pcfg_pull_none_8ma>,
1056                                 <4 11 RK_FUNC_1 &pcfg_pull_none_8ma>;
1057                 };
1058
1059                 sdmmc_clk: sdmmc-clk {
1060                         rockchip,pins =
1061                                 <4 12 RK_FUNC_1 &pcfg_pull_none_8ma>;
1062                 };
1063
1064                 sdmmc_cmd: sdmmc-cmd {
1065                         rockchip,pins =
1066                                 <4 13 RK_FUNC_1 &pcfg_pull_none_8ma>;
1067                 };
1068
1069                 /*
1070                  * In our case the official card detect is hooked to ground
1071                  * to avoid getting access to JTAG just by sticking something
1072                  * in the SD card slot (see the force_jtag bit in the TRM).
1073                  *
1074                  * We still configure it as card detect because it doesn't
1075                  * hurt and dw_mmc will ignore it.  We make sure to disable
1076                  * the pull though so we don't burn needless power.
1077                  */
1078                 sdmmc_cd: sdmmc-cd {
1079                         rockchip,pins =
1080                                 <0 7 RK_FUNC_1 &pcfg_pull_none>;
1081                 };
1082
1083                 /* This is where we actually hook up CD; has external pull */
1084                 sdmmc_cd_gpio: sdmmc-cd-gpio {
1085                         rockchip,pins = <4 24 RK_FUNC_GPIO &pcfg_pull_none>;
1086                 };
1087         };
1088
1089         spi1 {
1090                 spi1_sleep: spi1-sleep {
1091                         /*
1092                          * Pull down SPI1 CLK/CS/RX/TX during suspend, to
1093                          * prevent leakage.
1094                          */
1095                         rockchip,pins = <1 9 RK_FUNC_GPIO &pcfg_pull_down>,
1096                                         <1 10 RK_FUNC_GPIO &pcfg_pull_down>,
1097                                         <1 7 RK_FUNC_GPIO &pcfg_pull_down>,
1098                                         <1 8 RK_FUNC_GPIO &pcfg_pull_down>;
1099                 };
1100         };
1101
1102         touchscreen {
1103                 touch_int_l: touch-int-l {
1104                         rockchip,pins = <3 13 RK_FUNC_GPIO &pcfg_pull_up>;
1105                 };
1106
1107                 touch_reset_l: touch-reset-l {
1108                         rockchip,pins = <4 26 RK_FUNC_GPIO &pcfg_pull_none>;
1109                 };
1110         };
1111
1112         trackpad {
1113                 ap_i2c_tp_pu_en: ap-i2c-tp-pu-en {
1114                         rockchip,pins = <3 12 RK_FUNC_GPIO &pcfg_output_high>;
1115                 };
1116
1117                 trackpad_int_l: trackpad-int-l {
1118                         rockchip,pins = <1 4 RK_FUNC_GPIO &pcfg_pull_up>;
1119                 };
1120         };
1121
1122         wifi {
1123                 wifi_perst_l: wifi-perst-l {
1124                         rockchip,pins = <2 27 RK_FUNC_GPIO &pcfg_pull_none>;
1125                 };
1126
1127                 wlan_module_reset_l: wlan-module-reset-l {
1128                         /*
1129                          * We want this driven low ASAP (As {Soon,Strongly} As
1130                          * Possible), to avoid leakage through the powered-down
1131                          * WiFi.
1132                          */
1133                         rockchip,pins = <1 11 RK_FUNC_GPIO &pcfg_output_low>;
1134                 };
1135
1136                 bt_host_wake_l: bt-host-wake-l {
1137                         /* Kevin has an external pull up, but Gru does not */
1138                         rockchip,pins = <0 3 RK_FUNC_GPIO &pcfg_pull_up>;
1139                 };
1140         };
1141
1142         write-protect {
1143                 ap_fw_wp: ap-fw-wp {
1144                         rockchip,pins = <1 18 RK_FUNC_GPIO &pcfg_pull_up>;
1145                 };
1146         };
1147 };