1.\" Copyright (c) 2015 Landon Fuller 2.\" All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. 9.\" 2. Redistributions in binary form must reproduce the above copyright 10.\" notice, this list of conditions and the following disclaimer in the 11.\" documentation and/or other materials provided with the distribution. 12.\" 13.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 14.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 16.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 17.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 19.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23.\" SUCH DAMAGE. 24.\" 25.\" $FreeBSD$ 26.\" 27.Dd December 8, 2015 28.Dt BHND 4 29.Os 30.Sh NAME 31.Nm bhnd 32.Nd Broadcom Home Networking Division interconnect bus 33.Sh SYNOPSIS 34To compile this driver into the kernel, 35place the following lines in your kernel configuration file: 36.Bd -ragged -offset indent 37.Cd "device bhnd" 38.Ed 39.Pp 40Alternatively, to load the driver as a module at boot time, 41place the following line in 42.Xr loader.conf 5 : 43.Bd -literal -offset indent 44bhnd_load="YES" 45.Ed 46.Sh DESCRIPTION 47The 48.Nm 49driver provides a unified kernel bus interface to the on-chip 50interconnects used in Broadcom Home Networking Division (HND) 51devices. 52.Pp 53The Broadcom HND device family consists of SoCs (System On a Chip) 54and host-connected chipsets based on a common library of Broadcom IP 55cores connected via an internal hardware bus architecture. Drivers 56for these cores are implemented against the unified 57.Nm 58interface. 59.Pp 60The Sonic Inc. Silicon Backplane used in earlier HND devices is supported 61by the 62.Xr siba 4 63BHND driver. 64.Pp 65The ARM AMBA-based interconnect used in later HND devices is supported by 66the 67.Xr bcma 4 68BHND driver. 69.Sh SEE ALSO 70.Xr bhndb 4 , 71.Xr bcma 4 , 72.Xr siba 4 73.Sh HISTORY 74The 75.Nm 76device driver first appeared in 77.Fx 11.0 . 78.Sh AUTHORS 79.An -nosplit 80The 81.Nm 82driver was written by 83.An Landon Fuller Aq Mt landon@landonf.org . 84