AFAIK its roughly that a startup called Nuvia was working on server focussed ARM chips. As this is a market ARM are interested in growing, they got a good deal

AFAIK its roughly that a startup called Nuvia was working on server focussed ARM chips. As this is a market ARM are interested in growing, they got a good deal on licensing terms etc. Then Nuvia got bought by Qualcomm, and ARM don't seem to want Qualcomm to benefit from the special deal Nuvia had. Hence the big lawsuit.