mirror of https://gitee.com/openkylin/linux.git
179 lines
3.4 KiB
Plaintext
179 lines
3.4 KiB
Plaintext
/*
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* at91-ariag25.dts - Device Tree file for Acme Systems Aria G25 (AT91SAM9G25 based)
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*
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* Copyright (C) 2013 Douglas Gilbert <dgilbert@interlog.com>,
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* Robert Nelson <robertcnelson@gmail.com>
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*
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* Licensed under GPLv2 or later.
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*/
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/dts-v1/;
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#include "at91sam9g25.dtsi"
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/ {
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model = "Acme Systems Aria G25";
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compatible = "acme,ariag25", "atmel,at91sam9x5ek",
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"atmel,at91sam9x5", "atmel,at91sam9";
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aliases {
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serial0 = &dbgu;
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serial1 = &usart0;
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serial2 = &usart1;
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serial3 = &usart2;
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serial4 = &usart3;
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serial5 = &uart0;
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serial6 = &uart1;
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};
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chosen {
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bootargs = "console=ttyS0,115200 root=/dev/mmcblk0p2 rw rootwait";
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};
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memory {
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/* 128 MB, change this for 256 MB revision */
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reg = <0x20000000 0x8000000>;
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};
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clocks {
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slow_xtal {
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clock-frequency = <32768>;
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};
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main_xtal {
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clock-frequency = <12000000>;
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};
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};
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ahb {
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apb {
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mmc0: mmc@f0008000 {
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/* N.B. Aria has no SD card detect (CD), assumed present */
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pinctrl-0 = <
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&pinctrl_mmc0_slot0_clk_cmd_dat0
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&pinctrl_mmc0_slot0_dat1_3>;
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status = "okay";
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slot@0 {
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reg = <0>;
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bus-width = <4>;
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};
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};
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i2c0: i2c@f8010000 {
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status = "okay";
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};
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i2c1: i2c@f8014000 {
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status = "okay";
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};
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/* TWD2+TCLK2 hidden behind ethernet, so no i2c2 */
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usart0: serial@f801c000 {
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pinctrl-0 = <&pinctrl_usart0
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&pinctrl_usart0_rts
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&pinctrl_usart0_cts>;
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status = "okay";
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};
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usart1: serial@f8020000 {
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pinctrl-0 = <&pinctrl_usart1
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/* &pinctrl_usart1_rts */
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/* &pinctrl_usart1_cts */
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>;
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status = "okay";
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};
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usart2: serial@f8024000 {
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/* cannot activate RTS2+CTS2, clash with
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* ethernet on PB0 and PB1 */
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pinctrl-0 = <&pinctrl_usart2>;
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status = "okay";
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};
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usart3: serial@f8028000 {
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compatible = "atmel,at91sam9260-usart";
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reg = <0xf8028000 0x200>;
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interrupts = <8 4 5>;
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pinctrl-names = "default";
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pinctrl-0 = <&pinctrl_usart3
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/* &pinctrl_usart3_rts */
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/* &pinctrl_usart3_cts */
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>;
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status = "okay";
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};
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macb0: ethernet@f802c000 {
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phy-mode = "rmii";
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/*
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* following can be overwritten by bootloader:
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* for example u-boot 'ftd set' command
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*/
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local-mac-address = [00 00 00 00 00 00];
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status = "okay";
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};
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/*
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* UART0/1 pins are marked as GPIO on
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* Aria documentation.
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* Change to "okay" if you need additional serial ports
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*/
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uart0: serial@f8040000 {
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status = "disabled";
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};
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uart1: serial@f8044000 {
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status = "disabled";
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};
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adc0: adc@f804c000 {
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status = "okay";
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atmel,adc-channels-used = <0xf>;
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};
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dbgu: serial@fffff200 {
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status = "okay";
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};
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pinctrl@fffff400 {
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w1_0 {
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pinctrl_w1_0: w1_0-0 {
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atmel,pins = <0 21 0x0 0x1>; /* PA21 PIO, pull-up */
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};
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};
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};
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rtc@fffffeb0 {
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status = "okay";
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};
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};
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usb0: ohci@00600000 {
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status = "okay";
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num-ports = <3>;
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};
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usb1: ehci@00700000 {
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status = "okay";
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};
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};
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leds {
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compatible = "gpio-leds";
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/* little green LED in middle of Aria G25 module */
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aria_led {
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label = "aria_led";
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gpios = <&pioB 8 GPIO_ACTIVE_HIGH>; /* PB8 */
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linux,default-trigger = "heartbeat";
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};
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};
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onewire {
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compatible = "w1-gpio";
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gpios = <&pioA 21 GPIO_ACTIVE_LOW>;
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pinctrl-names = "default";
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pinctrl-0 = <&pinctrl_w1_0>;
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};
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};
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