Is it still supported? The “News” page on the linked site reads:

Current Linux/m68k Releases

As of today, the following versions of the Linux/m68k kernel are "current":

Linux/m68k 2.0.36, released 5 February 1999, is a stable 2.0 series release. Users of earlier versions should probably upgrade; it's well worth it.

Linux/m68k 2.2.10, released 19 July 1999, is a developmental release (despite the 2.2 version number).

Linux/m68k 2.4.5, released 5 June 2001, is an experimental release. (More recent patches may be available in the linux-m68k mailing list archives.)