Question: Is it OSDRV complete compilation=uboot compilation+kernel compilation?
Once Uboot or kernel is done well, no need to change hardware or move.
HiSilicon's documentation, especially the linux porting, Uboot porting, thoroughly understand, and don't miss a word.
You need to study the documentation carefully, especially the miniaturization in that documentation. That is to get the Uboot to about 100K, and the kernel to about 1.5M. Then is to burn the flash. How to allocate space. logo, configuration, etc.
answer:
Yes, at most there is another rootfs.
You don’t have to do it deliberately. I have never done the global one. I do it separately each time. Usually, it is rootfs, because this is where the executable program is placed. place. The other two are mainly environment and related to hardware. Unless the function is special, it must be done in Uboot or kernel.
Usually U-boot needs to do automatic upgrades.
Kernel involves hardware drivers.
In fact, the hardware driver can also be made into a KO module and placed in the rootfs, which is the same.
You don’t have to do it deliberately. I have never done the global one. I do it separately each time. Usually, it is rootfs, because this is where the executable program is placed. place. The other two are mainly environment and related to hardware. Unless the function is special, it must be done in Uboot or kernel.
Usually U-boot needs to do automatic upgrades.
Kernel involves hardware drivers.
In fact, the hardware driver can also be made into a KO module and placed in the rootfs, which is the same.
Once Uboot or kernel is done well, no need to change hardware or move.
HiSilicon's documentation, especially the linux porting, Uboot porting, thoroughly understand, and don't miss a word.
You need to study the documentation carefully, especially the miniaturization in that documentation. That is to get the Uboot to about 100K, and the kernel to about 1.5M. Then is to burn the flash. How to allocate space. logo, configuration, etc.