K 10
svn:author
V 3
ian
K 8
svn:date
V 27
2014-05-14T23:17:33.652345Z
K 7
svn:log
V 437
MFC r261083, r261092, r261126, r261127, r261128, r261129, r261130, r261131

  Add Atmel serial drivers.

  uart clock-frequency is a FreeBSD-specific extention. Make it optional and
  allow the client uart drivers to decide if a frequency is required.

  Remove redundant declaration for uart devclass.
  Commit some unrelated, but harmless, FDT ifdefs.

  Add at91 NAND support, Fix comment.

  Remove obsolete options and fix comments

END