newifi_dts

女爷i 2023-01-20 05:54 18阅读 0赞

# newifi-d2路由器的dts #

/*包含头文件*/
    #include "mt7621.dtsi"
    //板子级别
    #include <dt-bindings/gpio/gpio.h>
    #include <dt-bindings/input/input.h>
    
    //根节点
    / {
    	compatible = "d-team,newifi-d2", "mediatek,mt7621-soc";//compatible是系统识别该机器的标识
    /*tree中的 compatible 第一个""指定确切的设备，第二个""兼容的其他设备 */
    	model = "Newifi-D2";		//是板的ID，类型为字符串，它的描述的是板子的型号或者芯片平台的型号
    //别名节点
    	aliases {
    		led-boot = &led_power_blue;
    		led-failsafe = &led_power_blue;
    		led-running = &led_power_blue;
    		led-upgrade = &led_power_blue;
    		label-mac-device = &gmac0;
    	};
    //可选节点并不代表真正的设备，而是作为固件和操作系统之间传递数据的地方，如启动参数。
    	chosen {
    		bootargs = "console=ttyS0,115200";
    	};
    //newifi-d2 一共七个灯。低电平有效。
    	leds {
    		compatible = "gpio-leds";
    
    		power-amber {
    			label = "amber:power";	/*led灯的标识，会体现在/sys/class/leds目录中*/
    			gpios = <&gpio 6 GPIO_ACTIVE_LOW>;
    		};
    	
    		led_power_blue: power-blue {
    			label = "blue:power";	/*led灯的标识，会体现在/sys/class/leds目录中*/
    			gpios = <&gpio 15 GPIO_ACTIVE_LOW>;
    		};
    	
    		internet-amber {
    			label = "amber:internet";	/*led灯的标识，会体现在/sys/class/leds目录中*/
    			gpios = <&gpio 4 GPIO_ACTIVE_LOW>;
    		};
    	
    		internet-blue {
    			label = "blue:internet";	/*led灯的标识，会体现在/sys/class/leds目录中*/
    			gpios = <&gpio 13 GPIO_ACTIVE_LOW>;
    		};
    	
    		wlan2g {
    			label = "blue:wlan2g";		/*led灯的标识，会体现在/sys/class/leds目录中*/
    			gpios = <&gpio 14 GPIO_ACTIVE_LOW>;
    		};
    	
    		wlan5g {
    			label = "blue:wlan5g";		/*led灯的标识，会体现在/sys/class/leds目录中*/
    			gpios = <&gpio 16 GPIO_ACTIVE_LOW>;
    		};
    	
    		usb {
    			label = "blue:usb";		/*led灯的标识，会体现在/sys/class/leds目录中*/
    			gpios = <&gpio 10 GPIO_ACTIVE_LOW>;
    			trigger-sources = <&xhci_ehci_port1>, <&ehci_port2>;
    			linux,default-trigger = "usbport";
    		};
    	};
    	
    	keys {
    		compatible = "gpio-keys";
    	
    		reset {
    			label = "reset";
    			gpios = <&gpio 3 GPIO_ACTIVE_LOW>;
    			linux,code = <KEY_RESTART>;	 
    /*当按下reset按键后，向内核发出的code；用于input_event上报的code代码
    具体含义见input.h:比如这里的 KEY_RESTART 就对应 0x198 ；而在gpio-button-hotplug.c中，有BH_MAP(KEY_RESTART,	"reset"),*/
    		};
    	
    		wps {
    			label = "wps";
    			gpios = <&gpio 7 GPIO_ACTIVE_LOW>;
    			linux,code = <KEY_WPS_BUTTON>;
    		};
    	};
    	
    	gpio_export {
    		compatible = "gpio-export";
    		#size-cells = <0>;
    	
    		power_usb3 {
    			gpio-export,name = "power_usb3";
    			gpio-export,output = <1>;
    			gpios = <&gpio 11 GPIO_ACTIVE_HIGH>;
    		};
    	};
    };
    //spi flash  相关以及分区
    /*
    cat /pro/mtd
    mtd0: 00030000 00010000 "u-boot"
    mtd1: 00010000 00010000 "u-boot-env"
    mtd2: 00010000 00010000 "factory"
    mtd3: 00fb0000 00010000 "firmware"
    mtd4: 00185d72 00010000 "kernel"
    mtd5: 00e2a28e 00010000 "rootfs"
    mtd6: 00740000 00010000 "rootfs_data"
    一共32m
    
    
    */
    &spi0 {
    	status = "okay";
    
    	flash@0 {
    		compatible = "jedec,spi-nor";
    		reg = <0>;
    		spi-max-frequency = <45000000>;
    		broken-flash-reset;
    	
    		partitions {
    			compatible = "fixed-partitions";
    			#address-cells = <1>;
    			#size-cells = <1>;
    	
    			partition@0 {
    				label = "u-boot";
    				reg = <0x0 0x30000>;
    				read-only;
    			};
    	
    			partition@30000 {
    				label = "u-boot-env";
    				reg = <0x30000 0x10000>;
    				read-only;
    			};
    	
    			factory: partition@40000 {
    				label = "factory";
    				reg = <0x40000 0x10000>;
    				read-only;
    			};
    	
    			partition@50000 {
    				compatible = "denx,uimage";
    				label = "firmware";
    				reg = <0x50000 0x1fb0000>;
    			};
    		};
    	};
    };
    
    &pcie {
    	status = "okay";
    };
    
    &pcie0 {
    	mt76@0,0 {
    		reg = <0x0000 0 0 0 0>;
    		mediatek,mtd-eeprom = <&factory 0x8000>;
    		ieee80211-freq-limit = <5000000 6000000>;
    	};
    };
    
    &pcie1 {
    	mt76@0,0 {
    		reg = <0x0000 0 0 0 0>;
    		mediatek,mtd-eeprom = <&factory 0x0000>;
    	};
    };
    
    &gmac0 {
    	mtd-mac-address = <&factory 0xe000>; /*wifi的MAC地址，读取起始位置*/
    };
    
    &switch0 {
    	ports {
    		port@0 {
    			status = "okay";
    			label = "lan4";
    		};
    
    		port@1 {
    			status = "okay";
    			label = "lan3";
    		};
    	
    		port@2 {
    			status = "okay";
    			label = "lan2";
    		};
    	
    		port@3 {
    			status = "okay";
    			label = "lan1";
    		};
    	
    		port@4 {
    			status = "okay";
    			label = "wan";
    			mtd-mac-address = <&factory 0xe006>;
    		};
    	};
    };
    
    &state_default {
    	gpio {
    		groups = "i2c", "jtag", "uart2", "uart3";
    		function = "gpio";
    	};
    };

newifi_dts

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