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                 #address-cells = <1>;
  27                 #size-cells = <1>;
  28                 ranges;
  29
  30                 main_clock: clock@0 {
  31                         compatible = "atmel,osc", "fixed-clock";
  32                         clock-frequency = <18432000>;
  33                 };
  34
  35                 slow_xtal {
  36                         clock-frequency = <32768>;
  37                 };
  38
  39                 main_xtal {
  40                         clock-frequency = <18432000>;
  41                 };
  42         };
  43
  44         ahb {
  45                 apb {
  46                         usb1: gadget@fffa4000 {
  47                                 atmel,vbus-gpio = <&pioC 6 GPIO_ACTIVE_HIGH>;
  48                                 status = "okay";
  49                         };
  50
  51                         mmc0: mmc@fffa8000 {
  52                                 pinctrl-0 = <
  53                                         &pinctrl_mmc0_clk
  54                                         &pinctrl_mmc0_slot1_cmd_dat0
  55                                         &pinctrl_mmc0_slot1_dat1_3>;
  56                                 status = "okay";
  57
  58                                 slot@1 {
  59                                         reg = <1>;
  60                                         bus-width = <4>;
  61                                 };
  62                         };
  63
  64                         usart0: serial@fffb0000 {
  65                                 pinctrl-0 =
  66                                         <&pinctrl_usart0
  67                                          &pinctrl_usart0_rts
  68                                          &pinctrl_usart0_cts
  69                                         >;
  70                                 status = "okay";
  71                         };
  72
  73                         usart1: serial@fffb4000 {
  74                                 status = "okay";
  75                         };
  76
  77                         usart2: serial@fffb8000 {
  78                                 status = "okay";
  79                         };
  80
  81                         macb0: ethernet@fffc4000 {
  82                                 phy-mode = "rmii";
  83                                 status = "okay";
  84                         };
  85
  86                         usart3: serial@fffd0000 {
  87                                 status = "okay";
  88                         };
  89
  90                         uart0: serial@fffd4000 {
  91                                 status = "okay";
  92                         };
  93
  94                         uart1: serial@fffd8000 {
  95                                 status = "okay";
  96                         };
  97
  98                         dbgu: serial@fffff200 {
  99                                 status = "okay";
 100                         };
 101
 102                         pinctrl@fffff400 {
 103                                 board {
 104                                         pinctrl_pck0_as_mck: pck0_as_mck {
 105                                                 atmel,pins =
 106                                                         <AT91_PIOC 1 AT91_PERIPH_B AT91_PINCTRL_NONE>;
 107                                         };
 108                                 };
 109
 110                                 mmc0_slot1 {
 111                                         pinctrl_board_mmc0_slot1: mmc0_slot1-board {
 112                                                 atmel,pins =
 113                                                         <AT91_PIOC 9 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP_DEGLITCH>;   /* CD pin */
 114                                         };
 115                                 };
 116
 117                                 i2c0 {
 118                                         pinctrl_i2c0: i2c0-0 {
 119                                                 atmel,pins =
 120                                                         <AT91_PIOA 23 AT91_PERIPH_A AT91_PINCTRL_MULTI_DRIVE    /* TWD (SDA), open drain */
 121                                                          AT91_PIOA 24 AT91_PERIPH_A AT91_PINCTRL_MULTI_DRIVE>;  /* TWCK (SCL), open drain */
 122                                         };
 123                                 };
 124                         };
 125
 126                         watchdog@fffffd40 {
 127                                 status = "okay";
 128                         };
 129                 };
 130
 131                 usb0: ohci@00500000 {
 132                         num-ports = <2>;
 133                         status = "okay";
 134                 };
 135         };
 136
 137         i2c@0 {
 138                 pinctrl-names = "default";
 139                 pinctrl-0 = <&pinctrl_i2c0>;
 140                 i2c-gpio,delay-us = <5>;        /* ~85 kHz */
 141                 status = "okay";
 142         };
 143
 144         leds {
 145                 compatible = "gpio-leds";
 146
 147                 /* red LED marked "PC7" near mini USB (device) receptacle */
 148                 user_led {
 149                         label = "user_led";
 150                         gpios = <&pioC 7 GPIO_ACTIVE_HIGH>;     /* PC7 */
 151                         linux,default-trigger = "heartbeat";
 152                 };
 153         };
 154
 155         gpio_keys {
 156                 compatible = "gpio-keys";
 157
 158                 btn {
 159                         label = "Button";
 160                         gpios = <&pioC 4 GPIO_ACTIVE_LOW>;
 161                         linux,code = <0x103>;
 162                         gpio-key,wakeup;
 163                 };
 164         };
 165 };