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                 slow_xtal {
  38                         clock-frequency = <32768>;
  39                 };
  40
  41                 main_xtal {
  42                         clock-frequency = <12000000>;
  43                 };
  44         };
  45
  46         ahb {
  47                 apb {
  48                         mmc0: mmc@f0008000 {
  49                                 /* N.B. Aria has no SD card detect (CD), assumed present */
  50
  51                                 pinctrl-0 = <
  52                                         &pinctrl_mmc0_slot0_clk_cmd_dat0
  53                                         &pinctrl_mmc0_slot0_dat1_3>;
  54                                 status = "okay";
  55                                 slot@0 {
  56                                         reg = <0>;
  57                                         bus-width = <4>;
  58                                 };
  59                         };
  60
  61                         i2c0: i2c@f8010000 {
  62                                 status = "okay";
  63                         };
  64
  65                         i2c1: i2c@f8014000 {
  66                                 status = "okay";
  67                         };
  68
  69                         /* TWD2+TCLK2 hidden behind ethernet, so no i2c2 */
  70
  71                         usart0: serial@f801c000 {
  72                                 pinctrl-0 = <&pinctrl_usart0
  73                                              &pinctrl_usart0_rts
  74                                              &pinctrl_usart0_cts>;
  75                                 status = "okay";
  76                         };
  77
  78                         usart1: serial@f8020000 {
  79                                 pinctrl-0 = <&pinctrl_usart1
  80                                              /* &pinctrl_usart1_rts */
  81                                              /* &pinctrl_usart1_cts */
  82                                             >;
  83                                 status = "okay";
  84                         };
  85
  86                         usart2: serial@f8024000 {
  87                                 /* cannot activate RTS2+CTS2, clash with
  88                                  * ethernet on PB0 and PB1 */
  89                                 pinctrl-0 = <&pinctrl_usart2>;
  90                                 status = "okay";
  91                         };
  92
  93                         usart3: serial@f8028000 {
  94                                 compatible = "atmel,at91sam9260-usart";
  95                                 reg = <0xf8028000 0x200>;
  96                                 interrupts = <8 4 5>;
  97                                 pinctrl-names = "default";
  98                                 pinctrl-0 = <&pinctrl_usart3
  99                                              /* &pinctrl_usart3_rts */
 100                                              /* &pinctrl_usart3_cts */
 101                                             >;
 102                                 status = "okay";
 103                         };
 104
 105                         macb0: ethernet@f802c000 {
 106                                 phy-mode = "rmii";
 107                                 /*
 108                                  * following can be overwritten by bootloader:
 109                                  * for example u-boot 'ftd set' command
 110                                  */
 111                                 local-mac-address = [00 00 00 00 00 00];
 112                                 status = "okay";
 113                         };
 114
 115                         /*
 116                          * UART0/1 pins are marked as GPIO on
 117                          * Aria documentation.
 118                          * Change to "okay" if you need additional serial ports
 119                          */
 120                         uart0: serial@f8040000 {
 121                                 status = "disabled";
 122                         };
 123
 124                         uart1: serial@f8044000 {
 125                                 status = "disabled";
 126                         };
 127
 128                         adc0: adc@f804c000 {
 129                                 status = "okay";
 130                                 atmel,adc-channels-used = <0xf>;
 131                         };
 132
 133                         dbgu: serial@fffff200 {
 134                                 status = "okay";
 135                         };
 136
 137                         pinctrl@fffff400 {
 138                                 w1_0 {
 139                                         pinctrl_w1_0: w1_0-0 {
 140                                                 atmel,pins = <0 21 0x0 0x1>; /* PA21 PIO, pull-up */
 141                                         };
 142                                 };
 143                         };
 144
 145                         rtc@fffffeb0 {
 146                                 status = "okay";
 147                         };
 148                 };
 149
 150                 usb0: ohci@00600000 {
 151                         status = "okay";
 152                         num-ports = <3>;
 153                 };
 154
 155                 usb1: ehci@00700000 {
 156                         status = "okay";
 157                 };
 158         };
 159
 160         leds {
 161                 compatible = "gpio-leds";
 162
 163                 /* little green LED in middle of Aria G25 module */
 164                 aria_led {
 165                         label = "aria_led";
 166                         gpios = <&pioB 8 GPIO_ACTIVE_HIGH>; /* PB8 */
 167                         linux,default-trigger = "heartbeat";
 168                 };
 169
 170         };
 171
 172         onewire {
 173                 compatible = "w1-gpio";
 174                 gpios = <&pioA 21 GPIO_ACTIVE_LOW>;
 175                 pinctrl-names = "default";
 176                 pinctrl-0 = <&pinctrl_w1_0>;
 177         };
 178 };