FSB: support 566MHz, L2: Support 1.67GHz
/tools
drwxr-xr-x firewire
drwxr-xr-x perf
drwxr-xr-x power
drwxr-xr-x slub
drwxr-xr-x testing
drwxr-xr-x usb
drwxr-xr-x virtio