arch/arm/boot/dts/rk3288-veyron-pinky.dts

   1 /*
   2  * Google Veyron Pinky Rev 2 board device tree source
   3  *
   4  * Copyright 2015 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 /dts-v1/;
  46 #include "rk3288-veyron-chromebook.dtsi"
  47 #include "cros-ec-sbs.dtsi"
  48
  49 / {
  50         model = "Google Pinky";
  51         compatible = "google,veyron-pinky-rev2", "google,veyron-pinky",
  52                      "google,veyron", "rockchip,rk3288";
  53
  54         /delete-node/emmc-pwrseq;
  55 };
  56
  57 &emmc {
  58         /*
  59          * Use a pullup instead of a drive since the output is 3.3V and
  60          * really should be 1.8V (oops).  The external pulldown will help
  61          * bring the voltage down if we only drive with a pullup here.
  62          * Therefore disable the powerseq (and actual reset) for pinky.
  63          */
  64         /delete-property/mmc-pwrseq;
  65         pinctrl-0 = <&emmc_clk &emmc_cmd &emmc_bus8 &emmc_reset>;
  66 };
  67
  68 &gpio_keys {
  69         pinctrl-0 = <&pwr_key_h &ap_lid_int_l>;
  70
  71         power {
  72                 gpios = <&gpio0 5 GPIO_ACTIVE_HIGH>;
  73         };
  74 };
  75
  76 /* Touchpad connector */
  77 &i2c3 {
  78         status = "okay";
  79
  80         clock-frequency = <400000>;
  81         i2c-scl-falling-time-ns = <50>;
  82         i2c-scl-rising-time-ns = <300>;
  83 };
  84
  85 &pinctrl {
  86         buttons {
  87                 pwr_key_h: pwr-key-h {
  88                         rockchip,pins = <0 5 RK_FUNC_GPIO &pcfg_pull_none>;
  89                 };
  90         };
  91
  92         emmc {
  93                 emmc_reset: emmc-reset {
  94                         rockchip,pins = <7 12 RK_FUNC_GPIO &pcfg_pull_up>;
  95                 };
  96         };
  97
  98         sdmmc {
  99                 sdmmc_wp_gpio: sdmmc-wp-gpio {
 100                         rockchip,pins = <7 10 RK_FUNC_GPIO &pcfg_pull_up>;
 101                 };
 102         };
 103 };
 104
 105 &rk808 {
 106         regulators {
 107                 vcc18_lcd: SWITCH_REG2 {
 108                         regulator-always-on;
 109                         regulator-boot-on;
 110                         regulator-name = "vcc18_lcd";
 111                         regulator-state-mem {
 112                                 regulator-off-in-suspend;
 113                         };
 114                 };
 115         };
 116 };
 117
 118 &sdmmc {
 119         pinctrl-names = "default";
 120         pinctrl-0 = <&sdmmc_clk &sdmmc_cmd &sdmmc_cd_disabled &sdmmc_cd_gpio
 121                      &sdmmc_wp_gpio &sdmmc_bus4>;
 122         wp-gpios = <&gpio7 10 GPIO_ACTIVE_HIGH>;
 123 };
 124
 125 &tsadc {
 126         /* Some connection is flaky making the tsadc hang the system */
 127         status = "disabled";
 128 };