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.Dd June 3, 2016 27.Dt BCMA 4 28.Os 29.Sh NAME 30.Nm bcma 31.Nd Broadcom AMBA Backplane driver 32.Sh SYNOPSIS 33To compile this driver into the kernel, add the following lines to the 34kernel configuration file: 35.Bd -ragged -offset indent 36.Cd "device bhnd" 37.Cd "device bcma" 38.Ed 39.Pp 40To load the driver as a module at boot, add this line to 41.Xr loader.conf 5 : 42.Bd -literal -offset indent 43bcma_load="YES" 44.Ed 45.Sh DESCRIPTION 46The 47.Nm 48driver provides 49.Xr bhnd 4 50support for devices using the ARM AMBA-based backplane architecture found 51in later Broadcom Home Networking Division's network chipsets and embedded 52systems. 53.Pp 54A common interconnect connects all of the backplane's functional 55blocks. 56These functional blocks, known as cores, use the ARM AMBA AXI or 57APB interface to communicate with devices attached to the interconnect. 58.Pp 59The IP cores used in 60.Xr siba 4 61devices were adapted by Broadcom for compatibility with the new 62interconnect. 63.Sh SEE ALSO 64.Xr bhnd 4 , 65.Xr intro 4 , 66.Xr siba 4 67.Sh HISTORY 68The 69.Nm 70device driver first appeared in 71.Fx 11.0 . 72.Sh AUTHORS 73.An -nosplit 74The 75.Nm 76driver was written by 77.An Landon Fuller Aq Mt landonf@FreeBSD.org . 78