I've been checking into this occasionally, and the current answer is "no." The major (only?) manufacturer of HPNA 2.0 chips is Broadcom, and they refuse to release the information needed for creation of an open source driver. They're supposedly working on a binary-only Linux driver, but no one seems to know when it'll be available. And also, since it'll be binary-only they could decide to drop support for it at any time.
I won't be buying any of their products unless they release source, or sufficient information to allow someone else to write an open source driver.