[rowanG077]

Why this half backed open SoC? The CPU has an open source instruction set while the FPGA is complete proprietary garbage.

[rwmj]

All FPGAs are "proprietary garbage". Some have been reverse-engineered (like the Lattice) with great effort, but that's the only difference.

[rowanG077]

Well by that strict definition all of them are indeed proprietary. But in effect some Lattice and Xilinx FPGAs are usable as if they were not proprietary.