110,111c110,111
< physmem = SimpleMemory())
< system.clock = options.sys_clock
---
> physmem = SimpleMemory(),
> clk_domain = SrcClockDomain(clock = options.sys_clock))
131a132,134
> # Create a seperate clock domain for Ruby
> system.ruby.clk_domain = SrcClockDomain(clock = options.ruby_clock)
>