anchor.diff:  The #address-cells and #size-cells properties are not inherited from
   ancestors in the device tree. They shall be explicitly defined.
   
  -An ePAPR-compliant boot program shall supply #address-cells and
  +An {spec}-compliant boot program shall supply #address-cells and
   #size-cells on all nodes that have children.
   
   If missing, a client program should assume a default value of 2 for
  
positive.code: an overview of this syntax.
  
  === Relationship to IEEE(TM) 1275
  The ePAPR is loosely related to the IEEE 1275 Open Firmware
  standard—_IEEE Standard for Boot (Initialization Configuration)
  Firmware: Core Requirements and Practices_ <<1>>.
  
  
negative.code: 
  [float]
  == Other Acknowledgements
  Significant aspects of the {spec} device tree are based on work done by
  the Open Firmware Working Group which developed bindings for IEEE-1275.
  We would like to acknowledge their contributions.
  
  