@[toc]
在这里插入图片描述

https://github.com/wdfk-prog/u-boot/tree/art-pi-debug

Kconfig配置

  1. 添加如下配置,使用按键驱动与按键绑定命令功能与按键命令识别
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CONFIG_BUTTON_CMD=y
CONFIG_CMD_BUTTON=y
CONFIG_BUTTON=y
CONFIG_BUTTON_GPIO=y
CONFIG_CMD_BOOTMENU=y

添加env环境变量

  • 路径参考:board/st/stm32h750-art-pi/stm32h750-art-pi.env
  • 这里的button_cmd_0=后面是需要支持的cmd命令,必须要可以使用的
  • 这里使用bootmenu体现
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button_cmd_0_name=User
button_cmd_0=bootmenu


bootmenu_0=mount internal storage=usb start && ums 0 mmc 0; bootmenu
bootmenu_1=fastboot=echo Starting Fastboot protocol ...; fastboot usb 0; bootmenu
bootmenu_2=update bootloader=run flash_uboot
bootmenu_3=reboot RCM=enterrcm
bootmenu_4=reboot=reset
bootmenu_5=power off=poweroff
bootmenu_delay=-1

dts中配置

  • 需要注意根据自己的GPIO进行适配,第二激活电平需要自行测试设置
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#include <dt-bindings/input/input.h>
	gpio-keys {
		compatible = "gpio-keys";
		autorepeat;
		button-0 {
			label = "User";
			linux,code = <KEY_HOME>;
			gpios = <&gpioh 4 GPIO_ACTIVE_LOW>;
		};
	};

效果

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BTN 'User'> bootmenu


  *** U-Boot Boot Menu ***

      mount internal storage
      fastboot
      update bootloader
      reboot RCM
      reboot
      power off
      Exit


  Press UP/DOWN to move, ENTER to select, ESC to quit
Unknown command 'poweroff' - try 'help'