How to gradually blend a face?

Hi

I wonder if it's possible to gradually smooth out / fillet an edge on a small part like this

What I'm trying to achieve is that the top of the highlighted faces will be almost completely blended with the round surface whilst the bottom of the faces will have a fillet of 2mm. Does anyone know how to make this kind of gradual blending?

Thanks

John

SolidworksParts And Features