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.Dd July 12, 2010 .Dt FDTBUS 4 .Os .Sh NAME .Nm fdtbus .Nd Flattened Device Tree bus driver .Sh SYNOPSIS .Cd "options FDT" .Sh DESCRIPTION The .Nm abstract bus driver is the primary connection and translation layer between .Xr fdt 4 hardware resources description and .Fx native newbus device drivers framework. For an embedded system .Nm represents peripherals typically found on a highly integrated chip (system-on-chip).

p The .Nm driver provides generic, common infrastructure for all .Xr fdt 4 oriented device drivers, and its main responsibilities are the following: l -bullet t Creating newbus children that reflect .Xr fdt 4 nodes in the flattened device tree. t Managing SYS_RES_IRQ resources. t Managing SYS_RES_MEMORY, SYS_RES_IOPORT resources. .El .Sh SEE ALSO .Xr fdt 4 , .Xr openfirm 4 , .Xr simplebus 4 .Sh STANDARDS IEEE Std 1275: IEEE Standard for Boot (Initialization Configuration) Firmware: Core Requirements and Practices

q Vt Open Firmware .

p 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 .