A few months ago the Imagination site had a press release[0] about upstreaming graphics drivers to Linux which mentioned "B-Series" and "BXS-4-64" -- is that close enough to the BXE-4-32 that driver compatibility can be expected? I tried searching through the kernel source for 'BXS' and 'Imagination', but the only relevant hit was for some unrelated GMA 500 device from Intel that used licensed Imagination tech.

[0] https://blog.imaginationtech.com/imagination-and-our-commitm...