I anybody able to confirm open-cl is working ob this devices? (specs says yes.)
Kodi has no requirement for OpenCL so people in this forum have zero experience with support for it in the Amlogic BSP kernel. You will need to get the buildroot kernel sources from Amlogic's servers and look at the code yourself. I can authoritatively state there is no OpenCL support in the current mainline kernel - because it doesn't have properly functional OpenGL/GLES yet (via panfrost) and OpenCL is something that won't be considered until some point in the distant future.