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SIMPLEBUS(4)	       FreeBSD Kernel Interfaces Manual		  SIMPLEBUS(4)

NAME
     simplebus -- ePAPR	simple-bus driver

SYNOPSIS
     options FDT

DESCRIPTION
     This bus driver is	dedicated for the simple-bus node of a flattened
     device tree compliant with	the ePAPR specification.

     The simplebus entity does not represent any physical element by itself,
     it	is rather an umbrella node grouping integrated on-chip peripherals
     like interrupt controller,	connectivity controllers, accelerating engines
     and so on.

     The driver	is generic and common for all flattened	device tree nodes
     claiming simple-bus compatibility.	It iterates over direct	descendants of
     the simple-bus node, instantiates newbus children and assigns resources
     to	them, based on the configuration data retrieved	from the nodes proper-
     ties in fdt(4).

     Note the simplebus	does not manage	device resources and passes through
     any requests to the fdtbus(4) layer.

SEE ALSO
     fdt(4), fdtbus(4),	openfirm(4)

STANDARDS
     Power.org Standard	for Embedded Power Architecture	Platform Requirements
     (ePAPR).

HISTORY
     The simplebus support first appeared in FreeBSD 9.0.

AUTHORS
     The simplebus support was developed by Semihalf under sponsorship from
     the FreeBSD Foundation. This manual page was written by Rafal Jaworowski.

FreeBSD	11.1			 July 12, 2010			  FreeBSD 11.1

NAME | SYNOPSIS | DESCRIPTION | SEE ALSO | STANDARDS | HISTORY | AUTHORS

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