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 June 3, 2016 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, add the following lines to the 36kernel configuration file: 37.Bd -ragged -offset indent 38.Cd "device bhnd" 39.Cd "device bcma" 40.Ed 41.Pp 42To load the driver as a module at boot, add this line to 43.Xr loader.conf 5 : 44.Bd -literal -offset indent 45bcma_load="YES" 46.Ed 47.Sh DESCRIPTION 48The 49.Nm 50driver provides 51.Xr bhnd 4 52support for devices using the ARM AMBA-based backplane architecture found 53in later Broadcom Home Networking Division's network chipsets and embedded 54systems. 55.Pp 56A common interconnect connects all of the backplane's functional 57blocks. 58These 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 bhnd 4 , 67.Xr intro 4 , 68.Xr siba 4 69.Sh HISTORY 70The 71.Nm 72device driver first appeared in 73.Fx 11.0 . 74.Sh AUTHORS 75.An -nosplit 76The 77.Nm 78driver was written by 79.An Landon Fuller Aq Mt landonf@FreeBSD.org . 80