Ubuntu下如果通过Upgrade_tool命令升级U-boot.img? 命令提示里没有烧录U-boot.img的参数。
UL 是升级RK3128MiniLoaderAll_V2.25.bin的。
DB 我也有这样试过，sudo upgrade_tool db uboot.img，提示The Device did not support this operation!
ChooseDevice: CD
SwitchDevice: SD
UpgradeFirmware: UF
UpgradeLoader: UL
DownloadImage: DI <-p|-b|-k|-s|-r|-m image> [parameter file]
DownloadBoot: DB
EraseFlash: EF <Loader|firmware>
LowerFormat: LF