arch/arm/boot/dts/exynos5250-snow.dts

   1 /*
   2  * Google Snow board device tree source
   3  *
   4  * Copyright (c) 2012 Google, Inc
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 as
   8  * published by the Free Software Foundation.
   9 */
  10
  11 /dts-v1/;
  12 /include/ "exynos5250.dtsi"
  13 /include/ "cros5250-common.dtsi"
  14
  15 / {
  16         model = "Google Snow";
  17         compatible = "google,snow", "samsung,exynos5250";
  18
  19         aliases {
  20                 i2c104 = &i2c_104;
  21         };
  22
  23         pinctrl@11400000 {
  24                 sd3_clk: sd3-clk {
  25                         samsung,pin-drv = <0>;
  26                 };
  27
  28                 sd3_cmd: sd3-cmd {
  29                         samsung,pin-pud = <3>;
  30                         samsung,pin-drv = <0>;
  31                 };
  32
  33                 sd3_bus4: sd3-bus-width4 {
  34                         samsung,pin-drv = <0>;
  35                 };
  36         };
  37
  38         gpio-keys {
  39                 compatible = "gpio-keys";
  40
  41                 lid-switch {
  42                         label = "Lid";
  43                         gpios = <&gpx3 5 1>;
  44                         linux,input-type = <5>; /* EV_SW */
  45                         linux,code = <0>; /* SW_LID */
  46                         debounce-interval = <1>;
  47                         gpio-key,wakeup;
  48                 };
  49         };
  50
  51         i2c-arbitrator {
  52                 compatible = "i2c-arb-gpio-challenge";
  53                 #address-cells = <1>;
  54                 #size-cells = <0>;
  55
  56                 i2c-parent = <&{/i2c@12CA0000}>;
  57
  58                 our-claim-gpio = <&gpf0 3 1>;
  59                 their-claim-gpios = <&gpe0 4 1>;
  60                 slew-delay-us = <10>;
  61                 wait-retry-us = <3000>;
  62                 wait-free-us = <50000>;
  63
  64                 /* Use ID 104 as a hint that we're on physical bus 4 */
  65                 i2c_104: i2c@0 {
  66                         reg = <0>;
  67                         #address-cells = <1>;
  68                         #size-cells = <0>;
  69                 };
  70         };
  71
  72         /*
  73          * On Snow we've got SIP WiFi and so can keep drive strengths low to
  74          * reduce EMI.
  75          */
  76         dwmmc3@12230000 {
  77                 slot@0 {
  78                         pinctrl-names = "default";
  79                         pinctrl-0 = <&sd3_clk &sd3_cmd &sd3_bus4>;
  80                 };
  81         };
  82
  83         usb@12110000 {
  84                 samsung,vbus-gpio = <&gpx1 1 1 3 3>;
  85         };
  86
  87         fixed-rate-clocks {
  88                 xxti {
  89                         compatible = "samsung,clock-xxti";
  90                         clock-frequency = <24000000>;
  91                 };
  92         };
  93 };