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358aec7775
Arduino Yun is a microcontroller development board, based on Atmel ATmega32u4 and Atheros AR9331. Specifications: - MCU: ATmega32U4 - SoC: AR9331 - RAM: DDR2 64MB - Flash: SPI NOR 16MB - WiFi: - 2.4GHz: SoC internal - Ethernet: 1x 10/100Mbps - USB: 1x 2.0 - MicroSD: 1x SDHC Notes: - Stock firmware is based on OpenWrt AA. - The SoC UART can be accessed only through the MCU. YunSerialTerminal is recommended for access to serial console. - Stock firmware uses non-standard 250000 baudrate by default. - The MCU can be reprogrammed from the SoC with avrdude linuxgpio. Installation: 1. Update U-Boot environment variables to adapt to new partition scheme. > setenv bootcmd "run addboard; run addtty; run addparts; run addrootfs; bootm 0x9f050000 || bootm 0x9fea0000" > setenv mtdparts "spi0.0:256k(u-boot)ro,64k(u-boot-env),15936k(firmware),64k(nvram),64k(art)ro" > saveenv 2. Boot into stock firmware normally and perform sysupgrade with sysupgrade image. # sysupgrade -n -F /tmp/sysupgrade.bin Signed-off-by: Sungbo Eo <mans0n@gorani.run>
224 lines
3.7 KiB
Plaintext
224 lines
3.7 KiB
Plaintext
// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
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/dts-v1/;
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#include <dt-bindings/gpio/gpio.h>
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#include <dt-bindings/input/input.h>
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#include "ar9331.dtsi"
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/ {
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model = "Arduino Yun";
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compatible = "arduino,yun", "qca,ar9331";
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aliases {
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serial0 = &uart;
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};
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chosen {
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bootargs = "console=ttyATH0,250000";
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};
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ahb {
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apb {
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pinmux_extended: pinmux@18040030 {
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compatible = "pinctrl-single";
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reg = <0x18040030 0x4>;
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pinctrl-single,bit-per-mux;
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pinctrl-single,register-width = <32>;
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pinctrl-single,function-mask = <0x1>;
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#pinctrl-cells = <2>;
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enable_gpio11: pinmux_enable_gpio11 {
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pinctrl-single,bits = <0x0 0x200 0x200>;
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};
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};
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pinmux_bootstrap: pinmux@180600ac {
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compatible = "pinctrl-single";
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reg = <0x180600ac 0x4>;
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pinctrl-single,bit-per-mux;
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pinctrl-single,register-width = <32>;
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pinctrl-single,function-mask = <0x1>;
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#pinctrl-cells = <2>;
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enable_gpio26_gpio27: pinmux_enable_gpio26_gpio27 {
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pinctrl-single,bits = <0x0 0x40000 0x40000>;
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};
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};
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};
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};
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leds {
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compatible = "gpio-leds";
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wlan {
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label = "yun:blue:wlan";
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gpios = <&gpio 0 GPIO_ACTIVE_HIGH>;
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linux,default-trigger = "phy0tpt";
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};
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usb {
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label = "yun:white:usb";
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gpios = <&gpio 1 GPIO_ACTIVE_HIGH>;
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trigger-sources = <&hub_port1>;
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linux,default-trigger = "usbport";
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};
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};
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keys {
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compatible = "gpio-keys";
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config {
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label = "config";
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linux,code = <BTN_0>;
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gpios = <&gpio 20 GPIO_ACTIVE_LOW>;
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};
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};
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gpio-export {
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compatible = "gpio-export";
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gpio_spi_enable {
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gpio-export,name = "yun:oe:spi";
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gpio-export,output = <0>;
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gpios = <&gpio 21 GPIO_ACTIVE_HIGH>;
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};
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gpio_handshake_enable {
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gpio-export,name = "yun:oe:hs";
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gpio-export,output = <0>;
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gpios = <&gpio 22 GPIO_ACTIVE_HIGH>;
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};
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gpio_uart_enable {
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gpio-export,name = "yun:oe:uart";
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gpio-export,output = <0>;
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gpios = <&gpio 23 GPIO_ACTIVE_LOW>;
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};
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};
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reg_usb_vbus: reg_usb_vbus {
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compatible = "regulator-fixed";
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regulator-name = "usb_vbus";
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regulator-min-microvolt = <5000000>;
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regulator-max-microvolt = <5000000>;
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enable-active-high;
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};
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};
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&uart {
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status = "okay";
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};
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&gpio {
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status = "okay";
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};
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&pinmux {
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pinctrl-names = "default";
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pinctrl-0 = <&jtag_disable_pins &switch_led_disable_pins>;
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};
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&switch_led_disable_pins {
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pinctrl-single,bits = <0x0 0x80 0xf8>;
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};
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&pinmux_extended {
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pinctrl-names = "default";
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pinctrl-0 = <&enable_gpio11>;
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};
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&pinmux_bootstrap {
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pinctrl-names = "default";
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pinctrl-0 = <&enable_gpio26_gpio27>;
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};
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&usb {
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status = "okay";
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#address-cells = <1>;
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#size-cells = <0>;
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dr_mode = "host";
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vbus-supply = <®_usb_vbus>;
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port@1 {
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#address-cells = <1>;
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#size-cells = <0>;
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reg = <1>;
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#trigger-source-cells = <0>;
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hub_port1: port@1 {
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reg = <1>;
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#trigger-source-cells = <0>;
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};
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};
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};
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&usb_phy {
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status = "okay";
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};
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&spi {
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status = "okay";
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num-cs = <1>;
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flash@0 {
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compatible = "jedec,spi-nor";
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reg = <0>;
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spi-max-frequency = <50000000>;
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partitions {
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compatible = "fixed-partitions";
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#address-cells = <1>;
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#size-cells = <1>;
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partition@0 {
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label = "u-boot";
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reg = <0x0 0x40000>;
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read-only;
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};
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partition@40000 {
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label = "u-boot-env";
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reg = <0x40000 0x10000>;
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};
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partition@50000 {
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compatible = "denx,uimage";
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label = "firmware";
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reg = <0x50000 0xf90000>;
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};
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partition@fe0000 {
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label = "nvram";
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reg = <0xfe0000 0x10000>;
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};
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art: partition@ff0000 {
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label = "art";
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reg = <0xff0000 0x10000>;
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read-only;
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};
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};
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};
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};
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ð0 {
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status = "okay";
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};
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ð1 {
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status = "okay";
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compatible = "syscon", "simple-mfd";
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};
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&wmac {
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status = "okay";
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mtd-cal-data = <&art 0x1000>;
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};
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