SIMPLEBUS(4FREEBSD) - Linux man page online | Special files

EPAPR simple-bus driver.

July 12, 2010
SIMPLEBUS(4) BSD Kernel Interfaces Manual SIMPLEBUS(4)


simplebus — ePAPR simple-bus driver


options FDT


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, connectiv‐ ity 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.


fdt(4), fdtbus(4), openfirm(4)

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


The simplebus support first appeared in FreeBSD 9.0.


The simplebus support was developed by Semihalf under sponsorship from the FreeBSD Founda‐ tion. This manual page was written by Rafal Jaworowski.
BSD July 12, 2010 BSD
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simplebus(4freebsd) referred by FDT(4freebsd) | fdt(4freebsd) | fdtbus(4freebsd)
refer to fdtbus(4freebsd)
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