arch/arm/boot/dts/at91-foxg20.dts

   1 /*
   2  * at91-foxg20.dts - Device Tree file for Acme Systems FoxG20 board
   3  *
   4  * Based on DT files for at91sam9g20ek evaluation board (AT91SAM9G20 SoC)
   5  *
   6  * Copyright (C) 2013 Douglas Gilbert <dgilbert@interlog.com>
   7  *
   8  * Licensed under GPLv2 or later.
   9  */
  10 /dts-v1/;
  11 #include "at91sam9g20.dtsi"
  12
  13 / {
  14         model = "Acme Systems FoxG20";
  15         compatible = "acme,foxg20", "atmel,at91sam9g20", "atmel,at91sam9";
  16
  17         chosen {
  18                 bootargs = "console=ttyS0,115200 root=/dev/mmcblk0p2 rw rootwait";
  19         };
  20
  21         memory {
  22                 reg = <0x20000000 0x4000000>;
  23         };
  24
  25         clocks {
  26                 slow_xtal {
  27                         clock-frequency = <32768>;
  28                 };
  29
  30                 main_xtal {
  31                         clock-frequency = <18432000>;
  32                 };
  33         };
  34
  35         ahb {
  36                 apb {
  37                         usb1: gadget@fffa4000 {
  38                                 atmel,vbus-gpio = <&pioC 6 GPIO_ACTIVE_HIGH>;
  39                                 status = "okay";
  40                         };
  41
  42                         mmc0: mmc@fffa8000 {
  43                                 pinctrl-0 = <
  44                                         &pinctrl_mmc0_clk
  45                                         &pinctrl_mmc0_slot1_cmd_dat0
  46                                         &pinctrl_mmc0_slot1_dat1_3>;
  47                                 status = "okay";
  48
  49                                 slot@1 {
  50                                         reg = <1>;
  51                                         bus-width = <4>;
  52                                 };
  53                         };
  54
  55                         usart0: serial@fffb0000 {
  56                                 pinctrl-0 =
  57                                         <&pinctrl_usart0
  58                                          &pinctrl_usart0_rts
  59                                          &pinctrl_usart0_cts
  60                                         >;
  61                                 status = "okay";
  62                         };
  63
  64                         usart1: serial@fffb4000 {
  65                                 status = "okay";
  66                         };
  67
  68                         usart2: serial@fffb8000 {
  69                                 status = "okay";
  70                         };
  71
  72                         macb0: ethernet@fffc4000 {
  73                                 phy-mode = "rmii";
  74                                 status = "okay";
  75                         };
  76
  77                         usart3: serial@fffd0000 {
  78                                 status = "okay";
  79                         };
  80
  81                         uart0: serial@fffd4000 {
  82                                 status = "okay";
  83                         };
  84
  85                         uart1: serial@fffd8000 {
  86                                 status = "okay";
  87                         };
  88
  89                         dbgu: serial@fffff200 {
  90                                 status = "okay";
  91                         };
  92
  93                         pinctrl@fffff400 {
  94                                 board {
  95                                         pinctrl_pck0_as_mck: pck0_as_mck {
  96                                                 atmel,pins =
  97                                                         <AT91_PIOC 1 AT91_PERIPH_B AT91_PINCTRL_NONE>;
  98                                         };
  99                                 };
 100
 101                                 mmc0_slot1 {
 102                                         pinctrl_board_mmc0_slot1: mmc0_slot1-board {
 103                                                 atmel,pins =
 104                                                         <AT91_PIOC 9 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP_DEGLITCH>;   /* CD pin */
 105                                         };
 106                                 };
 107
 108                                 i2c0 {
 109                                         pinctrl_i2c0: i2c0-0 {
 110                                                 atmel,pins =
 111                                                         <AT91_PIOA 23 AT91_PERIPH_A AT91_PINCTRL_MULTI_DRIVE    /* TWD (SDA), open drain */
 112                                                          AT91_PIOA 24 AT91_PERIPH_A AT91_PINCTRL_MULTI_DRIVE>;  /* TWCK (SCL), open drain */
 113                                         };
 114                                 };
 115                         };
 116
 117                         watchdog@fffffd40 {
 118                                 status = "okay";
 119                         };
 120                 };
 121
 122                 usb0: ohci@500000 {
 123                         num-ports = <2>;
 124                         status = "okay";
 125                 };
 126         };
 127
 128         i2c-gpio-0 {
 129                 pinctrl-names = "default";
 130                 pinctrl-0 = <&pinctrl_i2c0>;
 131                 i2c-gpio,delay-us = <5>;        /* ~85 kHz */
 132                 status = "okay";
 133         };
 134
 135         leds {
 136                 compatible = "gpio-leds";
 137
 138                 /* red LED marked "PC7" near mini USB (device) receptacle */
 139                 user_led {
 140                         label = "user_led";
 141                         gpios = <&pioC 7 GPIO_ACTIVE_HIGH>;     /* PC7 */
 142                         linux,default-trigger = "heartbeat";
 143                 };
 144         };
 145
 146         gpio_keys {
 147                 compatible = "gpio-keys";
 148
 149                 btn {
 150                         label = "Button";
 151                         gpios = <&pioC 4 GPIO_ACTIVE_LOW>;
 152                         linux,code = <0x103>;
 153                         wakeup-source;
 154                 };
 155         };
 156 };