arch/arm/boot/dts/imx6q-gk802.dts

   1 /*
   2  * Copyright (C) 2013 Philipp Zabel
   3  *
   4  * This file is licensed under the terms of the GNU General Public License
   5  * version 2.  This program is licensed "as is" without any warranty of any
   6  * kind, whether express or implied.
   7  */
   8
   9 /dts-v1/;
  10 #include <dt-bindings/gpio/gpio.h>
  11 #include "imx6q.dtsi"
  12
  13 / {
  14         model = "Zealz GK802";
  15         compatible = "zealz,imx6q-gk802", "fsl,imx6q";
  16
  17         chosen {
  18                 stdout-path = &uart4;
  19         };
  20
  21         memory {
  22                 reg = <0x10000000 0x40000000>;
  23         };
  24
  25         regulators {
  26                 compatible = "simple-bus";
  27                 #address-cells = <1>;
  28                 #size-cells = <0>;
  29
  30                 reg_3p3v: regulator@0 {
  31                         compatible = "regulator-fixed";
  32                         reg = <0>;
  33                         regulator-name = "3P3V";
  34                         regulator-min-microvolt = <3300000>;
  35                         regulator-max-microvolt = <3300000>;
  36                         regulator-always-on;
  37                 };
  38         };
  39
  40         gpio-keys {
  41                 compatible = "gpio-keys";
  42
  43                 recovery-button {
  44                         label = "recovery";
  45                         gpios = <&gpio3 16 1>;
  46                         linux,code = <0x198>; /* KEY_RESTART */
  47                         gpio-key,wakeup;
  48                 };
  49         };
  50 };
  51
  52 &hdmi {
  53         ddc-i2c-bus = <&i2c3>;
  54         status = "okay";
  55 };
  56
  57 /* Internal I2C */
  58 &i2c2 {
  59         pinctrl-names = "default";
  60         pinctrl-0 = <&pinctrl_i2c2>;
  61         clock-frequency = <100000>;
  62         status = "okay";
  63
  64         /* SDMC DM2016 1024 bit EEPROM + 128 bit OTP */
  65         eeprom: dm2016@51 {
  66                 compatible = "sdmc,dm2016";
  67                 reg = <0x51>;
  68         };
  69 };
  70
  71 /* External I2C via HDMI */
  72 &i2c3 {
  73         pinctrl-names = "default";
  74         pinctrl-0 = <&pinctrl_i2c3>;
  75         clock-frequency = <100000>;
  76         status = "okay";
  77 };
  78
  79 &iomuxc {
  80         pinctrl-names = "default";
  81         pinctrl-0 = <&pinctrl_hog>;
  82
  83         imx6q-gk802 {
  84                 pinctrl_hog: hoggrp {
  85                         fsl,pins = <
  86                                 /* Recovery button, active-low */
  87                                 MX6QDL_PAD_EIM_D16__GPIO3_IO16  0x100b1
  88                                 /* RTL8192CU enable GPIO, active-low */
  89                                 MX6QDL_PAD_NANDF_D0__GPIO2_IO00 0x1b0b0
  90                         >;
  91                 };
  92
  93                 pinctrl_i2c2: i2c2grp {
  94                         fsl,pins = <
  95                                 MX6QDL_PAD_KEY_COL3__I2C2_SCL           0x4001b8b1
  96                                 MX6QDL_PAD_KEY_ROW3__I2C2_SDA           0x4001b8b1
  97                         >;
  98                 };
  99
 100                 pinctrl_i2c3: i2c3grp {
 101                         fsl,pins = <
 102                                 MX6QDL_PAD_GPIO_5__I2C3_SCL             0x4001b8b1
 103                                 MX6QDL_PAD_GPIO_16__I2C3_SDA            0x4001b8b1
 104                         >;
 105                 };
 106
 107                 pinctrl_uart4: uart4grp {
 108                         fsl,pins = <
 109                                 MX6QDL_PAD_KEY_COL0__UART4_TX_DATA      0x1b0b1
 110                                 MX6QDL_PAD_KEY_ROW0__UART4_RX_DATA      0x1b0b1
 111                         >;
 112                 };
 113
 114                 pinctrl_usdhc3: usdhc3grp {
 115                         fsl,pins = <
 116                                 MX6QDL_PAD_SD3_CMD__SD3_CMD             0x17059
 117                                 MX6QDL_PAD_SD3_CLK__SD3_CLK             0x10059
 118                                 MX6QDL_PAD_SD3_DAT0__SD3_DATA0          0x17059
 119                                 MX6QDL_PAD_SD3_DAT1__SD3_DATA1          0x17059
 120                                 MX6QDL_PAD_SD3_DAT2__SD3_DATA2          0x17059
 121                                 MX6QDL_PAD_SD3_DAT3__SD3_DATA3          0x17059
 122                         >;
 123                 };
 124
 125                 pinctrl_usdhc4: usdhc4grp {
 126                         fsl,pins = <
 127                                 MX6QDL_PAD_SD4_CMD__SD4_CMD             0x17059
 128                                 MX6QDL_PAD_SD4_CLK__SD4_CLK             0x10059
 129                                 MX6QDL_PAD_SD4_DAT0__SD4_DATA0          0x17059
 130                                 MX6QDL_PAD_SD4_DAT1__SD4_DATA1          0x17059
 131                                 MX6QDL_PAD_SD4_DAT2__SD4_DATA2          0x17059
 132                                 MX6QDL_PAD_SD4_DAT3__SD4_DATA3          0x17059
 133                         >;
 134                 };
 135         };
 136 };
 137
 138 &uart2 {
 139         status = "okay";
 140 };
 141
 142 &uart4 {
 143         pinctrl-names = "default";
 144         pinctrl-0 = <&pinctrl_uart4>;
 145         status = "okay";
 146 };
 147
 148 /* External USB-A port (USBOTG) */
 149 &usbotg {
 150         disable-over-current;
 151         status = "okay";
 152 };
 153
 154 /* Internal USB port (USBH1), connected to RTL8192CU */
 155 &usbh1 {
 156         disable-over-current;
 157         status = "okay";
 158 };
 159
 160 /* External microSD */
 161 &usdhc3 {
 162         pinctrl-names = "default";
 163         pinctrl-0 = <&pinctrl_usdhc3>;
 164         bus-width = <4>;
 165         cd-gpios = <&gpio6 11 GPIO_ACTIVE_LOW>;
 166         vmmc-supply = <&reg_3p3v>;
 167         status = "okay";
 168 };
 169
 170 /* Internal microSD */
 171 &usdhc4 {
 172         pinctrl-names = "default";
 173         pinctrl-0 = <&pinctrl_usdhc4>;
 174         bus-width = <4>;
 175         vmmc-supply = <&reg_3p3v>;
 176         status = "okay";
 177 };