arch/arm/dts/meson-gxbb-p200.dts

   1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
   2 /*
   3  * Copyright (c) 2016 Andreas Färber
   4  * Copyright (c) 2016 BayLibre, Inc.
   5  * Author: Kevin Hilman <khilman@kernel.org>
   6  */
   7
   8 /dts-v1/;
   9
  10 #include "meson-gxbb-p20x.dtsi"
  11 #include <dt-bindings/input/input.h>
  12
  13 / {
  14         compatible = "amlogic,p200", "amlogic,meson-gxbb";
  15         model = "Amlogic Meson GXBB P200 Development Board";
  16
  17         avdd18_usb_adc: regulator-avdd18_usb_adc {
  18                 compatible = "regulator-fixed";
  19                 regulator-name = "AVDD18_USB_ADC";
  20                 regulator-min-microvolt = <1800000>;
  21                 regulator-max-microvolt = <1800000>;
  22         };
  23
  24         adc_keys {
  25                 compatible = "adc-keys";
  26                 io-channels = <&saradc 0>;
  27                 io-channel-names = "buttons";
  28                 keyup-threshold-microvolt = <1800000>;
  29
  30                 button-home {
  31                         label = "Home";
  32                         linux,code = <KEY_HOME>;
  33                         press-threshold-microvolt = <900000>; /* 50% */
  34                 };
  35
  36                 button-esc {
  37                         label = "Esc";
  38                         linux,code = <KEY_ESC>;
  39                         press-threshold-microvolt = <684000>; /* 38% */
  40                 };
  41
  42                 button-up {
  43                         label = "Volume Up";
  44                         linux,code = <KEY_VOLUMEUP>;
  45                         press-threshold-microvolt = <468000>; /* 26% */
  46                 };
  47
  48                 button-down {
  49                         label = "Volume Down";
  50                         linux,code = <KEY_VOLUMEDOWN>;
  51                         press-threshold-microvolt = <252000>; /* 14% */
  52                 };
  53
  54                 button-menu {
  55                         label = "Menu";
  56                         linux,code = <KEY_MENU>;
  57                         press-threshold-microvolt = <0>; /* 0% */
  58                 };
  59         };
  60 };
  61
  62 &ethmac {
  63         status = "okay";
  64         pinctrl-0 = <&eth_rgmii_pins>;
  65         pinctrl-names = "default";
  66         phy-handle = <&eth_phy0>;
  67         phy-mode = "rgmii";
  68
  69         amlogic,tx-delay-ns = <2>;
  70
  71         snps,reset-gpio = <&gpio GPIOZ_14 0>;
  72         snps,reset-delays-us = <0 10000 1000000>;
  73         snps,reset-active-low;
  74
  75         mdio {
  76                 compatible = "snps,dwmac-mdio";
  77                 #address-cells = <1>;
  78                 #size-cells = <0>;
  79
  80                 eth_phy0: ethernet-phy@3 {
  81                         /* Micrel KSZ9031 (0x00221620) */
  82                         reg = <3>;
  83                         interrupt-parent = <&gpio_intc>;
  84                         /* MAC_INTR on GPIOZ_15 */
  85                         interrupts = <29 IRQ_TYPE_LEVEL_LOW>;
  86                 };
  87         };
  88 };
  89
  90 &i2c_B {
  91         status = "okay";
  92         pinctrl-0 = <&i2c_b_pins>;
  93         pinctrl-names = "default";
  94 };
  95
  96 &saradc {
  97         status = "okay";
  98         vref-supply = <&avdd18_usb_adc>;
  99 };