genesys2: full4q CPU variant not supported about linux-on-litex-rocket

[gsomlo]

Have a look here: litex-hub/pythondata-cpu-rocket@ef6cf0a

The variants have been renamed so on genesys2 you should probably use --cpu-variant linux --cpu-num-cores 4 --cpu-mem-width 4.

The genesys2 has a 256-bit wide LiteDRAM port, hence --cpu-mem-width 4. You can pick the --cpu-num-cores you want, might be able to fit 8 of them on a large FPGA, not exactly sure (but there should be room enough for 4).

NOTE: I'd like to eliminate support for the various --cpu-mem-width options in the long term, but first I (or someone) would have to fix the LiteX AXI up-converter (enjoy-digital/litex#1753 warning: the comment thread goes a bit off topic :) )

[newinnovations]

Thanks for the quick reply!