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