1.\" Copyright (c) 2015 Landon Fuller 2.\" Copyright (c) 2010 Weongyo Jeong 3.\" All rights reserved. 4.\" 5.\" Redistribution and use in source and binary forms, with or without 6.\" modification, are permitted provided that the following conditions 7.\" are met: 8.\" 1. Redistributions of source code must retain the above copyright 9.\" notice, this list of conditions and the following disclaimer. 10.\" 2. Redistributions in binary form must reproduce the above copyright 11.\" notice, this list of conditions and the following disclaimer in the 12.\" documentation and/or other materials provided with the distribution. 13.\" 14.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24.\" SUCH DAMAGE. 25.\" 26.\" $FreeBSD$ 27.\" 28.Dd December 8, 2015 29.Dt BCMA 4 30.Os 31.Sh NAME 32.Nm bcma 33.Nd Broadcom AMBA Backplane driver 34.Sh SYNOPSIS 35To compile this driver into the kernel, 36place the following lines in your kernel configuration file: 37.Bd -ragged -offset indent 38.Cd "device bhnd" 39.Cd "device bcma" 40.Ed 41.Pp 42Alternatively, to load the driver as a module at boot time, 43place the following line in 44.Xr loader.conf 5 : 45.Bd -literal -offset indent 46bcma_load="YES" 47.Ed 48.Sh DESCRIPTION 49The 50.Nm 51driver provides 52.Xr bhnd 4 53support for devices using the ARM AMBA-based backplane architecture found 54in later Broadcom Home Networking Division's (HND) wireless chipsets and 55embedded systems. 56.Pp 57A common interconnect connects all of the backplane's functional 58blocks. These functional blocks, known as cores, use the ARM AMBA AXI or 59APB interface to communicate with devices attached to the interconnect. 60.Pp 61The IP cores used in 62.Xr siba 4 63devices were adapted by Broadcom for compatibility with the new 64interconnect. 65.Sh SEE ALSO 66.Xr bcma 4 , 67.Xr bhnd 4 68.Sh HISTORY 69The 70.Nm 71device driver first appeared in 72.Fx 11.0 . 73.Sh AUTHORS 74.An -nosplit 75The 76.Nm 77driver was written by 78.An Landon Fuller Aq Mt landon@landonf.org . 79