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.Dd June 3, 2016 26.Dt BHND 4 27.Os 28.Sh NAME 29.Nm bhnd 30.Nd Broadcom Home Networking Division interconnect bus 31.Sh SYNOPSIS 32To compile this driver into the kernel, add the following lines to the 33kernel configuration file: 34.Bd -ragged -offset indent 35.Cd "device bhnd" 36.Ed 37.Pp 38To load the driver as a module at boot, add this line to 39.Xr loader.conf 5 : 40.Bd -literal -offset indent 41bhnd_load="YES" 42.Ed 43.Sh DESCRIPTION 44The 45.Nm 46driver provides a unified kernel bus interface to the on-chip 47interconnects used in Broadcom Home Networking Division (HND) 48devices. 49.Pp 50The Broadcom HND device family consists of SoCs (System On a Chip) 51and host-connected chipsets based on a common library of Broadcom IP 52cores connected via an internal hardware bus architecture. 53Drivers for these cores are implemented against the unified 54.Nm 55interface. 56.Pp 57The Sonic Inc. Silicon Backplane used in earlier HND devices is supported 58by the 59.Xr siba 4 60BHND driver. 61.Pp 62The ARM AMBA-based interconnect used in later HND devices is supported by 63the 64.Xr bcma 4 65BHND driver. 66.Sh SEE ALSO 67.Xr bcma 4 , 68.Xr bhndb 4 , 69.Xr intro 4 , 70.Xr siba 4 71.Sh HISTORY 72The 73.Nm 74device driver first appeared in 75.Fx 11.0 . 76.Sh AUTHORS 77.An -nosplit 78The 79.Nm 80driver was written by 81.An Landon Fuller Aq Mt landonf@FreeBSD.org . 82