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/*
* at91-ariag25.dts - Device Tree file for Acme Systems Aria G25 (AT91SAM9G25 based)
*
* Copyright (C) 2013 Douglas Gilbert <dgilbert@interlog.com>,
* Robert Nelson <robertcnelson@gmail.com>
*
* Licensed under GPLv2 or later.
*/
/dts-v1/;
#include "at91sam9g25.dtsi"
/ {
model = "Acme Systems Aria G25";
compatible = "acme,ariag25", "atmel,at91sam9x5ek",
"atmel,at91sam9x5", "atmel,at91sam9";
aliases {
serial0 = &dbgu;
serial1 = &usart0;
serial2 = &usart1;
serial3 = &usart2;
serial4 = &usart3;
serial5 = &uart0;
serial6 = &uart1;
};
chosen {
bootargs = "console=ttyS0,115200 root=/dev/mmcblk0p2 rw rootwait";
};
memory {
/* 128 MB, change this for 256 MB revision */
reg = <0x20000000 0x8000000>;
};
clocks {
slow_xtal {
clock-frequency = <32768>;
};
main_xtal {
clock-frequency = <12000000>;
};
};
ahb {
apb {
mmc0: mmc@f0008000 {
/* N.B. Aria has no SD card detect (CD), assumed present */
pinctrl-0 = <
&pinctrl_mmc0_slot0_clk_cmd_dat0
&pinctrl_mmc0_slot0_dat1_3>;
status = "okay";
slot@0 {
reg = <0>;
bus-width = <4>;
};
};
i2c0: i2c@f8010000 {
status = "okay";
};
i2c1: i2c@f8014000 {
status = "okay";
};
/* TWD2+TCLK2 hidden behind ethernet, so no i2c2 */
usart0: serial@f801c000 {
pinctrl-0 = <&pinctrl_usart0
&pinctrl_usart0_rts
&pinctrl_usart0_cts>;
status = "okay";
};
usart1: serial@f8020000 {
pinctrl-0 = <&pinctrl_usart1
/* &pinctrl_usart1_rts */
/* &pinctrl_usart1_cts */
>;
status = "okay";
};
usart2: serial@f8024000 {
/* cannot activate RTS2+CTS2, clash with
* ethernet on PB0 and PB1 */
pinctrl-0 = <&pinctrl_usart2>;
status = "okay";
};
usart3: serial@f8028000 {
compatible = "atmel,at91sam9260-usart";
reg = <0xf8028000 0x200>;
interrupts = <8 4 5>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_usart3
/* &pinctrl_usart3_rts */
/* &pinctrl_usart3_cts */
>;
status = "okay";
};
macb0: ethernet@f802c000 {
phy-mode = "rmii";
/*
* following can be overwritten by bootloader:
* for example u-boot 'ftd set' command
*/
local-mac-address = [00 00 00 00 00 00];
status = "okay";
};
/*
* UART0/1 pins are marked as GPIO on
* Aria documentation.
* Change to "okay" if you need additional serial ports
*/
uart0: serial@f8040000 {
status = "disabled";
};
uart1: serial@f8044000 {
status = "disabled";
};
adc0: adc@f804c000 {
status = "okay";
atmel,adc-channels-used = <0xf>;
};
dbgu: serial@fffff200 {
status = "okay";
};
pinctrl@fffff400 {
w1_0 {
pinctrl_w1_0: w1_0-0 {
atmel,pins = <0 21 0x0 0x1>; /* PA21 PIO, pull-up */
};
};
};
rtc@fffffeb0 {
status = "okay";
};
};
usb0: ohci@600000 {
status = "okay";
num-ports = <3>;
};
usb1: ehci@700000 {
status = "okay";
};
};
leds {
compatible = "gpio-leds";
/* little green LED in middle of Aria G25 module */
aria_led {
label = "aria_led";
gpios = <&pioB 8 GPIO_ACTIVE_HIGH>; /* PB8 */
linux,default-trigger = "heartbeat";
};
};
onewire {
compatible = "w1-gpio";
gpios = <&pioA 21 GPIO_ACTIVE_LOW>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_w1_0>;
};
};
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