Your best bet will be with NXP then. They still haven't released the i.MX8 cpus, but i.MX7 boards are available (up to dual core 1.2GHz), and, as far as I know, they are the only (decent, omap3 & 4 don't have enough power these days) with full opensource support for the entire SoC, even the GPU
Thank you for pointing these out. The i.MX7 and i.MX8 SoCs seem very interesting, but I have a hard time finding information about available SBCs, mainline Linux and official Debian support. The only SBC I found is the Nitrogen7[0] and it doesn't seem to geared towards desktop use as there is no DP nor HDMI nor VGA, though the PCIe expansions is gold. I wonder why other SBC don't offer PCIe. They might not have the highest performance, but I don't need that.
