Marvell Yukon chip in FreeBSD 5.4

[Leonid Baryudin]

I'm trying to load Marvell if_myk.ko kernel module. In FreeBSD 5.4 vanilla
  it works fine, creates device node, etc...
  
  In my distribution (based on the same 5.4, but with some changes) driver
  gets loaded (kldstat shows that), but device node is not created.
  
  What should I look for? Some kernel option, disabling/enabling node creation?
  
  Thanks,
  
  Leonid.