@igm,
It's the same thing for me. The problem of free will as I see it is equal to the issue of whether minds are determined by matter or not. If they are NOT fully determined by matter, and can also determine matter (cause stuff to change) then minds are free IMO, in the sense that they are self-determined. If they are partially determined by matter (as they might be) then they are partially free.
And evidently, if minds are fully determined by their underlying neurobiology, they cannot really know anything. Hence in my view, knowledge implies free will.