正点原子的zynq小系统板的linux开发文件设备树配置

vi project-spec/meta-user/recipes-bsp/device-tree/files/system-user.dtsi

这是打开设备树的代码

/include/ "system-conf.dtsi"

#include <dt-bindings/gpio/gpio.h>

/ {

model = "ALIENTEK Development Board";

compatible = "alientek,zynq-7020","xlnx,zynq-7000";

leds {

compatible = "gpio-leds";

gpio-led1 {

label = "pl_led0";

gpios = <&gpio0 54 GPIO_ACTIVE_HIGH>;

linux,default-trigger = "heartbeat";

};

gpio-led2 {

label = "ps_led0";

gpios = <&gpio0 7 GPIO_ACTIVE_HIGH>;

default-state = "on";

};

};

keys {

compatible = "gpio-keys";

autorepeat;

gpio-key1 {

label = "ps_key";

gpios = <&gpio0 12 GPIO_ACTIVE_LOW>;

linux,code = <105>; // Right

debounce-interval = <20>; // 20ms

};

gpio-key2 {

label = "pl_key";

gpios = <&gpio0 55 GPIO_ACTIVE_LOW>;

linux,code = <106>; // Left

debounce-interval = <20>;

};

};

usb_phy0: phy0@e0002000 {

compatible = "ulpi-phy";

#phy-cells = <0>;

reg = <0xe0002000 0x1000>;

view-port = <0x0170>;

drv-vbus;

};

};

&usb0 {

dr_mode = "otg";

usb-phy = <&usb_phy0>;

};