On i.MX8m Platform, our roadmap is based on SOM board. For now, we have finished MYIR i.MX8m board and AVNET Maaxboard(mini) board.
The coral.ai board from google is in progress.
So the linux version we use now depends on the system version that comes with the SOM board.
We have a V5.y version driver on raspiberry PI, maybe this will help you.
Of course, we will transplant all product drivers, including CS-MIP-IMX307, to i.MX8m. This work is also in progress.