What kind of for free are you talking? The first commercial run RISC-V microcontroller SoC has fully-published RTL, and a company which will support you in addi

What kind of for free are you talking? The first commercial run RISC-V microcontroller SoC has fully-published RTL, and a company which will support you in adding it to your products (SiFive). Obviously people aren't going to give you the manufactured chips for free, but how close do you want it?