Rockchip flash Linux image http://opensource.rock-chips.com/wiki

本文详细介绍了一款针对Linux系统的固件升级工具upgrade_tool的使用方法。该工具位于Linux SDK根目录下的特定路径中，可通过执行权限设置进行启用。文章提供了具体的命令示例，包括如何通过不同的参数对RK3399设备的maskrom、boot、trust、resource、kernel及rootfs等部分进行固件刷写。

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Upgradetool

upgrade_tool is a firmware upgrade tool for Linux. You can find it in [Linux SDK root]/ tools/linux/Linux_Upgrade_Tool. Or you can donwload it from here.

To use upgrade_tool, make sure you can execute it first.

chmod 777 ./tools/linux/Linux_Upgrade_Tool/upgrade_tool

To use upgradetool flash image. Please make sure your device is in maskrom rockusb mode. Go to the rockimg directory

cd rockimg

Use below command to flash image. Let's use RK3399 as an example. You only need change rk3399_loader_v1.09.112.bin to the one you are using.

sudo ../tools/linux/Linux_Upgrade_Tool/upgrade_tool ul rk3399_loader_v1.09.112.bin
sudo ../tools/linux/Linux_Upgrade_Tool/upgrade_tool di -p parameter.txt
sudo ../tools/linux/Linux_Upgrade_Tool/upgrade_tool di -u uboot.img
sudo ../tools/linux/Linux_Upgrade_Tool/upgrade_tool di -t trust.img
sudo ../tools/linux/Linux_Upgrade_Tool/upgrade_tool di -re resource.img
sudo ../tools/linux/Linux_Upgrade_Tool/upgrade_tool di -k kernel.img
sudo ../tools/linux/Linux_Upgrade_Tool/upgrade_tool di -rootfs rootfs.img
sudo ../tools/linux/Linux_Upgrade_Tool/upgrade_tool rd