The i.MX6 platform has for the past few years enjoyed a large effort to add upstream support to Linux and surrounding projects. Now it is at the point where nothing is really missing any more. Improvements are still being made, to the graphics driver for i.MX 6, but functionally it is complete. The i.MX8 is a different story. The newly introduced platform is seeing lots of work being done, despite hardware being still difficult to get access to.