|  | /* | 
|  | * Copyright (c) 2024 MASSDRIVER EI (massdriver.space) | 
|  | * SPDX-License-Identifier: Apache-2.0 | 
|  | */ | 
|  |  | 
|  | /dts-v1/; | 
|  |  | 
|  | #include <wch/ch32v208/ch32v208gbu.dtsi> | 
|  | #include <zephyr/dt-bindings/gpio/gpio.h> | 
|  | #include <zephyr/dt-bindings/input/input-event-codes.h> | 
|  | #include "linkw-pinctrl.dtsi" | 
|  |  | 
|  | / { | 
|  | model = "linkw"; | 
|  | compatible = "wch,ch32v208"; | 
|  |  | 
|  | chosen { | 
|  | zephyr,sram = &sram0; | 
|  | zephyr,flash = &flash0; | 
|  | zephyr,console = &usart2; | 
|  | zephyr,shell-uart = &usart2; | 
|  | }; | 
|  |  | 
|  | leds { | 
|  | compatible = "gpio-leds"; | 
|  | status = "okay"; | 
|  |  | 
|  | green_led: led0 { | 
|  | gpios = <&gpioc 7 GPIO_ACTIVE_LOW>; | 
|  | }; | 
|  |  | 
|  | blue_led: led1 { | 
|  | gpios = <&gpioc 9 GPIO_ACTIVE_LOW>; | 
|  | }; | 
|  | }; | 
|  |  | 
|  | buttons { | 
|  | compatible = "gpio-keys"; | 
|  |  | 
|  | mode: sw0 { | 
|  | gpios = <&gpioa 4 GPIO_ACTIVE_LOW>; | 
|  | zephyr,code = <INPUT_KEY_0>; | 
|  | }; | 
|  |  | 
|  | boot: sw1 { | 
|  | gpios = <&gpiob 8 GPIO_ACTIVE_HIGH>; | 
|  | zephyr,code = <INPUT_KEY_1>; | 
|  | }; | 
|  | }; | 
|  |  | 
|  | aliases { | 
|  | led0 = &blue_led; | 
|  | sw0 = &mode; | 
|  | }; | 
|  | }; | 
|  |  | 
|  | &clk_hse { | 
|  | clock-frequency = <DT_FREQ_M(32)>; | 
|  | status = "okay"; | 
|  | }; | 
|  |  | 
|  | &pll { | 
|  | clocks = <&clk_hse>; | 
|  | status = "okay"; | 
|  | }; | 
|  |  | 
|  | &rcc { | 
|  | clocks = <&pll>; | 
|  | }; | 
|  |  | 
|  | &gpioa { | 
|  | status = "okay"; | 
|  | }; | 
|  |  | 
|  | &gpioc { | 
|  | status = "okay"; | 
|  | }; | 
|  |  | 
|  | &usart2 { | 
|  | status = "okay"; | 
|  | current-speed = <115200>; | 
|  | pinctrl-0 = <&usart2_default>; | 
|  | pinctrl-names = "default"; | 
|  | }; |