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.Dd July 12, 2010 .Dt SIMPLEBUS 4 .Os .Sh NAME .Nm simplebus .Nd ePAPR simple-bus driver .Sh SYNOPSIS .Cd "options FDT" .Sh DESCRIPTION This bus driver is dedicated for the

a simple-bus node of a flattened device tree compliant with the

a ePAPR specification.

p The .Nm 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.

p The driver is generic and common for all flattened device tree nodes claiming

a simple-bus compatibility. It iterates over direct descendants of the

a simple-bus node, instantiates newbus children and assigns resources to them, based on the configuration data retrieved from the nodes properties in .Xr fdt 4 .

p Note the .Nm does not manage device resources and passes through any requests to the .Xr fdtbus 4 layer. .Sh SEE ALSO .Xr fdt 4 , .Xr fdtbus 4 , .Xr openfirm 4 .Sh STANDARDS Power.org Standard for Embedded Power Architecture Platform Requirements

q Vt ePAPR . .Sh HISTORY The .Nm support first appeared in .Fx 9.0 . .Sh AUTHORS The .Nm support was developed by Semihalf under sponsorship from the FreeBSD Foundation. This manual page was written by .An Rafal Jaworowski .