kernelconfig_penguin
CONFIG_ARC_PLAT_FPGA_LEGACY is not available for the default architecture x86.
Result is shown for architecture arc

"Legacy" ARC FPGA dev Boards

configname: CONFIG_ARC_PLAT_FPGA_LEGACY

Linux Kernel Configuration
└─> "Legacy" ARC FPGA dev Boards

Support for ARC development boards, provided by Synopsys.
These are based on FPGA or ISS. e.g.
- ARCAngel4
- ML509
- MetaWare ISS