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SIMPLEBUS(4)						   BSD 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 properties 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. BSD
July 12, 2010 BSD

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