arch/arm/boot/dts/at91-ariag25.dts

   1 /*
   2  * at91-ariag25.dts - Device Tree file for Acme Systems Aria G25 (AT91SAM9G25 based)
   3  *
   4  * Copyright (C) 2013 Douglas Gilbert <dgilbert@interlog.com>,
   5  *                    Robert Nelson <robertcnelson@gmail.com>
   6  *
   7  * Licensed under GPLv2 or later.
   8  */
   9 /dts-v1/;
  10 #include "at91sam9g25.dtsi"
  11
  12 / {
  13         model = "Acme Systems Aria G25";
  14         compatible = "acme,ariag25", "atmel,at91sam9x5ek",
  15                      "atmel,at91sam9x5", "atmel,at91sam9";
  16
  17         aliases {
  18                 serial0 = &dbgu;
  19                 serial1 = &usart0;
  20                 serial2 = &usart1;
  21                 serial3 = &usart2;
  22                 serial4 = &usart3;
  23                 serial5 = &uart0;
  24                 serial6 = &uart1;
  25         };
  26
  27         chosen {
  28                 bootargs = "console=ttyS0,115200 root=/dev/mmcblk0p2 rw rootwait";
  29         };
  30
  31         memory {
  32                 /* 128 MB, change this for 256 MB revision */
  33                 reg = <0x20000000 0x8000000>;
  34         };
  35
  36         clocks {
  37                 #address-cells = <1>;
  38                 #size-cells = <1>;
  39                 ranges;
  40
  41                 main_clock: clock@0 {
  42                         compatible = "atmel,osc", "fixed-clock";
  43                         clock-frequency = <12000000>;
  44                 };
  45
  46                 slow_xtal {
  47                         clock-frequency = <32768>;
  48                 };
  49
  50                 main_xtal {
  51                         clock-frequency = <12000000>;
  52                 };
  53         };
  54
  55         ahb {
  56                 apb {
  57                         mmc0: mmc@f0008000 {
  58                                 /* N.B. Aria has no SD card detect (CD), assumed present */
  59
  60                                 pinctrl-0 = <
  61                                         &pinctrl_mmc0_slot0_clk_cmd_dat0
  62                                         &pinctrl_mmc0_slot0_dat1_3>;
  63                                 status = "okay";
  64                                 slot@0 {
  65                                         reg = <0>;
  66                                         bus-width = <4>;
  67                                 };
  68                         };
  69
  70                         i2c0: i2c@f8010000 {
  71                                 status = "okay";
  72                         };
  73
  74                         i2c1: i2c@f8014000 {
  75                                 status = "okay";
  76                         };
  77
  78                         /* TWD2+TCLK2 hidden behind ethernet, so no i2c2 */
  79
  80                         usart0: serial@f801c000 {
  81                                 pinctrl-0 = <&pinctrl_usart0
  82                                              &pinctrl_usart0_rts
  83                                              &pinctrl_usart0_cts>;
  84                                 status = "okay";
  85                         };
  86
  87                         usart1: serial@f8020000 {
  88                                 pinctrl-0 = <&pinctrl_usart1
  89                                              /* &pinctrl_usart1_rts */
  90                                              /* &pinctrl_usart1_cts */
  91                                             >;
  92                                 status = "okay";
  93                         };
  94
  95                         usart2: serial@f8024000 {
  96                                 /* cannot activate RTS2+CTS2, clash with
  97                                  * ethernet on PB0 and PB1 */
  98                                 pinctrl-0 = <&pinctrl_usart2>;
  99                                 status = "okay";
 100                         };
 101
 102                         usart3: serial@f8028000 {
 103                                 compatible = "atmel,at91sam9260-usart";
 104                                 reg = <0xf8028000 0x200>;
 105                                 interrupts = <8 4 5>;
 106                                 pinctrl-names = "default";
 107                                 pinctrl-0 = <&pinctrl_usart3
 108                                              /* &pinctrl_usart3_rts */
 109                                              /* &pinctrl_usart3_cts */
 110                                             >;
 111                                 status = "okay";
 112                         };
 113
 114                         macb0: ethernet@f802c000 {
 115                                 phy-mode = "rmii";
 116                                 /*
 117                                  * following can be overwritten by bootloader:
 118                                  * for example u-boot 'ftd set' command
 119                                  */
 120                                 local-mac-address = [00 00 00 00 00 00];
 121                                 status = "okay";
 122                         };
 123
 124                         /*
 125                          * UART0/1 pins are marked as GPIO on
 126                          * Aria documentation.
 127                          * Change to "okay" if you need additional serial ports
 128                          */
 129                         uart0: serial@f8040000 {
 130                                 status = "disabled";
 131                         };
 132
 133                         uart1: serial@f8044000 {
 134                                 status = "disabled";
 135                         };
 136
 137                         adc0: adc@f804c000 {
 138                                 status = "okay";
 139                                 atmel,adc-channels-used = <0xf>;
 140                         };
 141
 142                         dbgu: serial@fffff200 {
 143                                 status = "okay";
 144                         };
 145
 146                         pinctrl@fffff400 {
 147                                 w1_0 {
 148                                         pinctrl_w1_0: w1_0-0 {
 149                                                 atmel,pins = <0 21 0x0 0x1>; /* PA21 PIO, pull-up */
 150                                         };
 151                                 };
 152                         };
 153
 154                         rtc@fffffeb0 {
 155                                 status = "okay";
 156                         };
 157                 };
 158
 159                 usb0: ohci@00600000 {
 160                         status = "okay";
 161                         num-ports = <3>;
 162                 };
 163
 164                 usb1: ehci@00700000 {
 165                         status = "okay";
 166                 };
 167         };
 168
 169         leds {
 170                 compatible = "gpio-leds";
 171
 172                 /* little green LED in middle of Aria G25 module */
 173                 aria_led {
 174                         label = "aria_led";
 175                         gpios = <&pioB 8 GPIO_ACTIVE_HIGH>; /* PB8 */
 176                         linux,default-trigger = "heartbeat";
 177                 };
 178
 179         };
 180
 181         onewire@0 {
 182                 compatible = "w1-gpio";
 183                 gpios = <&pioA 21 GPIO_ACTIVE_LOW>;
 184                 pinctrl-names = "default";
 185                 pinctrl-0 = <&pinctrl_w1_0>;
 186         };
 187 };