Yes. The Yocto Project site hosts some of the MX machines here.
NOTES:
- If the machine's folder is present but it is empty, a building error may have occurred. Check the build's status for the machine on the archives or send an email to the list.
- Due to limited resources, not all (Freescale) machines are (nightly) built, in case you need one of these, you need to bake it yourself. You can start building following these instructions.