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FDTBUS(4)	       FreeBSD Kernel Interfaces Manual		     FDTBUS(4)

NAME
     fdtbus -- Flattened Device	Tree bus driver

SYNOPSIS
     options FDT

DESCRIPTION
     The fdtbus	abstract bus driver is the primary connection and translation
     layer between fdt(4) hardware resources description and FreeBSD native
     newbus device drivers framework. For an embedded system fdtbus represents
     peripherals typically found on a highly integrated	chip (system-on-chip).

     The fdtbus	driver provides	generic, common	infrastructure for all fdt(4)
     oriented device drivers, and its main responsibilities are	the following:

     +o	 Creating newbus children that reflect fdt(4) nodes in the flattened
	 device	tree.

     +o	 Managing SYS_RES_IRQ resources.

     +o	 Managing SYS_RES_MEMORY, SYS_RES_IOPORT resources.

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

STANDARDS
     IEEE Std 1275: IEEE Standard for Boot (Initialization Configuration)
     Firmware: Core Requirements and Practices (Open Firmware).

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

HISTORY
     The fdtbus	support	first appeared in FreeBSD 9.0.

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

FreeBSD	10.3			 July 12, 2010			  FreeBSD 10.3

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

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