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

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  * at91-ariag25.dts - Device Tree file for Acme Systems Aria G25 (AT91SAM9G25 based)
   4  *
   5  * Copyright (C) 2013 Douglas Gilbert <dgilbert@interlog.com>,
   6  *                    Robert Nelson <robertcnelson@gmail.com>
   7  */
   8 /dts-v1/;
   9 #include "at91sam9g25.dtsi"
  10
  11 / {
  12         model = "Acme Systems Aria G25";
  13         compatible = "acme,ariag25", "atmel,at91sam9x5ek",
  14                      "atmel,at91sam9x5", "atmel,at91sam9";
  15
  16         aliases {
  17                 serial0 = &dbgu;
  18                 serial1 = &usart0;
  19                 serial2 = &usart1;
  20                 serial3 = &usart2;
  21                 serial4 = &usart3;
  22                 serial5 = &uart0;
  23                 serial6 = &uart1;
  24         };
  25
  26         chosen {
  27                 bootargs = "console=ttyS0,115200 root=/dev/mmcblk0p2 rw rootwait";
  28         };
  29
  30         memory {
  31                 /* 128 MB, change this for 256 MB revision */
  32                 reg = <0x20000000 0x8000000>;
  33         };
  34
  35         clocks {
  36                 slow_xtal {
  37                         clock-frequency = <32768>;
  38                 };
  39
  40                 main_xtal {
  41                         clock-frequency = <12000000>;
  42                 };
  43         };
  44
  45         ahb {
  46                 apb {
  47                         mmc0: mmc@f0008000 {
  48                                 /* N.B. Aria has no SD card detect (CD), assumed present */
  49
  50                                 pinctrl-0 = <
  51                                         &pinctrl_mmc0_slot0_clk_cmd_dat0
  52                                         &pinctrl_mmc0_slot0_dat1_3>;
  53                                 status = "okay";
  54                                 slot@0 {
  55                                         reg = <0>;
  56                                         bus-width = <4>;
  57                                 };
  58                         };
  59
  60                         tcb0: timer@f8008000 {
  61                                 timer@0 {
  62                                         compatible = "atmel,tcb-timer";
  63                                         reg = <0>;
  64                                 };
  65
  66                                 timer@1 {
  67                                         compatible = "atmel,tcb-timer";
  68                                         reg = <1>;
  69                                 };
  70                         };
  71
  72                         i2c0: i2c@f8010000 {
  73                                 status = "okay";
  74                         };
  75
  76                         i2c1: i2c@f8014000 {
  77                                 status = "okay";
  78                         };
  79
  80                         /* TWD2+TCLK2 hidden behind ethernet, so no i2c2 */
  81
  82                         usart0: serial@f801c000 {
  83                                 pinctrl-0 = <&pinctrl_usart0
  84                                              &pinctrl_usart0_rts
  85                                              &pinctrl_usart0_cts>;
  86                                 status = "okay";
  87                         };
  88
  89                         usart1: serial@f8020000 {
  90                                 pinctrl-0 = <&pinctrl_usart1
  91                                              /* &pinctrl_usart1_rts */
  92                                              /* &pinctrl_usart1_cts */
  93                                             >;
  94                                 status = "okay";
  95                         };
  96
  97                         usart2: serial@f8024000 {
  98                                 /* cannot activate RTS2+CTS2, clash with
  99                                  * ethernet on PB0 and PB1 */
 100                                 pinctrl-0 = <&pinctrl_usart2>;
 101                                 status = "okay";
 102                         };
 103
 104                         usart3: serial@f8028000 {
 105                                 compatible = "atmel,at91sam9260-usart";
 106                                 reg = <0xf8028000 0x200>;
 107                                 interrupts = <8 4 5>;
 108                                 pinctrl-names = "default";
 109                                 pinctrl-0 = <&pinctrl_usart3
 110                                              /* &pinctrl_usart3_rts */
 111                                              /* &pinctrl_usart3_cts */
 112                                             >;
 113                                 status = "okay";
 114                         };
 115
 116                         macb0: ethernet@f802c000 {
 117                                 phy-mode = "rmii";
 118                                 /*
 119                                  * following can be overwritten by bootloader:
 120                                  * for example u-boot 'ftd set' command
 121                                  */
 122                                 local-mac-address = [00 00 00 00 00 00];
 123                                 status = "okay";
 124                         };
 125
 126                         /*
 127                          * UART0/1 pins are marked as GPIO on
 128                          * Aria documentation.
 129                          * Change to "okay" if you need additional serial ports
 130                          */
 131                         uart0: serial@f8040000 {
 132                                 status = "disabled";
 133                         };
 134
 135                         uart1: serial@f8044000 {
 136                                 status = "disabled";
 137                         };
 138
 139                         adc0: adc@f804c000 {
 140                                 status = "okay";
 141                                 atmel,adc-channels-used = <0xf>;
 142                         };
 143
 144                         dbgu: serial@fffff200 {
 145                                 status = "okay";
 146                         };
 147
 148                         pinctrl@fffff400 {
 149                                 w1_0 {
 150                                         pinctrl_w1_0: w1_0-0 {
 151                                                 atmel,pins = <0 21 0x0 0x1>; /* PA21 PIO, pull-up */
 152                                         };
 153                                 };
 154                         };
 155
 156                         rtc@fffffeb0 {
 157                                 status = "okay";
 158                         };
 159                 };
 160
 161                 usb0: ohci@600000 {
 162                         status = "okay";
 163                         num-ports = <3>;
 164                 };
 165
 166                 usb1: ehci@700000 {
 167                         status = "okay";
 168                 };
 169         };
 170
 171         leds {
 172                 compatible = "gpio-leds";
 173
 174                 /* little green LED in middle of Aria G25 module */
 175                 aria_led {
 176                         label = "aria_led";
 177                         gpios = <&pioB 8 GPIO_ACTIVE_HIGH>; /* PB8 */
 178                         linux,default-trigger = "heartbeat";
 179                 };
 180
 181         };
 182
 183         onewire {
 184                 compatible = "w1-gpio";
 185                 gpios = <&pioA 21 GPIO_ACTIVE_LOW>;
 186                 pinctrl-names = "default";
 187                 pinctrl-0 = <&pinctrl_w1_0>;
 188         };
 189 };