一、下载OpenSTLinux BSP

官网下载地址：https://www.st.com/en/embedded-software/stm32mp1dev.html#get-software

二、解压文件

将下载的文件复制到ubuntu系统解压

解压命令：root@ubuntu:/opt/st/source# tar xvf en.sources-stm32mp1-openstlinux-6.1-yocto-mickledore-mp1-v23.06.21.tar.gz

解压后的文件

三、编译linux内核

3.1、进入linux内核文件夹linux-stm32mp-6.1.28-stm32mp-r1-r0/

3.2、解压linux内核

root@ubuntu:/opt/st/source/stm32mp1-openstlinux-6.1-yocto-mickledore-mp1-v23.06.21/sources/arm-ostl-linux-gnueabi/linux-stm32mp-6.1.28-stm32mp-r1-r0# tar xvf linux-6.1.28.tar.xz

解压后的内核文件

3.3、打补丁

root@ubuntu:/opt/st/source/stm32mp1-openstlinux-6.1-yocto-mickledore-mp1-v23.06.21/sources/arm-ostl-linux-gnueabi/linux-stm32mp-6.1.28-stm32mp-r1-r0/linux-6.1.28# for p in ls -1 ../*.patch; do patch -p1 < $p; done

3.4、编译内核

root@ubuntu:/opt/st/source/stm32mp1-openstlinux-6.1-yocto-mickledore-mp1-v23.06.21/sources/arm-ostl-linux-gnueabi/linux-stm32mp-6.1.28-stm32mp-r1-r0/linux-6.1.28# make ARCH=arm uImage vmlinux dtbs LOADADDR=0xC2000040

3.5、编译模块

root@ubuntu:/opt/st/source/stm32mp1-openstlinux-6.1-yocto-mickledore-mp1-v23.06.21/sources/arm-ostl-linux-gnueabi/linux-stm32mp-6.1.28-stm32mp-r1-r0/linux-6.1.28# make ARCH=arm modules

3.6、构建模块

root@ubuntu:/opt/st/source/stm32mp1-openstlinux-6.1-yocto-mickledore-mp1-v23.06.21/sources/arm-ostl-linux-gnueabi/linux-stm32mp-6.1.28-stm32mp-r1-r0/linux-6.1.28# mkdir -p $PWD/install_artifact/

root@ubuntu:/opt/st/source/stm32mp1-openstlinux-6.1-yocto-mickledore-mp1-v23.06.21/sources/arm-ostl-linux-gnueabi/linux-stm32mp-6.1.28-stm32mp-r1-r0/linux-6.1.28# make ARCH=arm INSTALL_MOD_PATH="$PWD/install_artifact" modules_install

四、复制文件到开发板

4.1、复制Linux内核到开发板

4.2、复制设备树到开发板

4.3、复制内核模块到开发板

root@ubuntu:/opt/st/source/stm32mp1-openstlinux-6.1-yocto-mickledore-mp1-v23.06.21/sources/arm-ostl-linux-gnueabi/linux-stm32mp-6.1.28-stm32mp-r1-r0/linux-6.1.28# rm install_artifact/lib/modules/6.1.28/build install_artifact/lib/modules/6.1.28/source

root@ubuntu:/opt/st/source/stm32mp1-openstlinux-6.1-yocto-mickledore-mp1-v23.06.21/sources/arm-ostl-linux-gnueabi/linux-stm32mp-6.1.28-stm32mp-r1-r0/linux-6.1.28# find install_artifact/ -name "*.ko" | xargs $STRIP --strip-debug --remove-section=.comment --remove-section=.note --preserve-dates

root@ubuntu:/opt/st/source/stm32mp1-openstlinux-6.1-yocto-mickledore-mp1-v23.06.21/sources/arm-ostl-linux-gnueabi/linux-stm32mp-6.1.28-stm32mp-r1-r0/linux-6.1.28# scp -r install_artifact/lib/modules/* root@192.168.1.105:/lib/modules

五、同步数据

在开发板上执行：

root@stm32mp1:~# /sbin/depmod -a 重新构建模块项

root@stm32mp1:~# sync 将磁盘的数据与内存同步

root@stm32mp1:~# reboot 重启系统

以上就是编译和同步系统内核的步骤