第10.3章 U-boot指令

设置TFTP启动Ubuntu里的内核、设备树
setenv bootcmd 'tftp c2000000 uImage;tftp c4000000 stm32mp157d-atk.dtb;bootm c2000000 - c4000000'
设置从EMMC启动系统

自定义环境变量来启动TFTP或者EMMC里的系统

setenv mybootemmc 'ext4load mmc 1:2 c2000000 uImage;ext4load mmc 1:2 c4000000 stm32mp157d-atk.dtb;bootm c2000000 - c4000000'
setenv mybootnet 'tftp c2000000 uImage;tftp c4000000 stm32mp157d-atk.dtb;bootm c2000000 - c4000000'
saveenv
run mybootemmc
run mybootnet




posted @ 2021-02-19 17:14  orangebear  阅读(67)  评论(0)    收藏  举报