1.\" $OpenBSD: bcmsdhost.4,v 1.2 2020/04/22 11:35:03 jmc Exp $ 2.\" 3.\" Copyright (c) 2020 Mark Kettenis <kettenis@openbsd.org> 4.\" 5.\" Permission to use, copy, modify, and distribute this software for any 6.\" purpose with or without fee is hereby granted, provided that the above 7.\" copyright notice and this permission notice appear in all copies. 8.\" 9.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 10.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 11.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 12.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 13.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 14.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 15.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 16.\" 17.Dd $Mdocdate: April 22 2020 $ 18.Dt BCMSDHOST 4 19.Os 20.Sh NAME 21.Nm bcmsdhost 22.Nd Broadcom BCM238x SD controller 23.Sh SYNOPSIS 24.Cd "bcmsdhost* at fdt?" 25.Cd "sdmmc* at bcmsdhost?" 26.Sh DESCRIPTION 27The 28.Nm 29driver provides support for the SD controllers integrated on Broadcom 30BCM283x and BCM2711 SoCs. 31The driver uses the 32.Xr bcmdmac 4 33DMA controller to provide DMA support. 34.Pp 35The 36.Xr sdmmc 4 37subsystem performs SD/MMC transactions to communicate with whatever SD 38devices are inserted into the card slot or directly connected to the 39controller. 40.Sh SEE ALSO 41.Xr bcmdmac 4 , 42.Xr intro 4 , 43.Xr sdmmc 4 44.Sh HISTORY 45.Ox 46support for 47.Nm 48first appeared in 49.Ox 6.7 . 50.Sh AUTHORS 51.An -nosplit 52The 53.Nm 54driver was written by 55.An Jared D. McNeill 56for 57.Nx 58and ported to 59.Ox 60by 61.An Neil Ashford Aq Mt ashfordneil0@gmail.com 62and 63.An Tobias Heider Aq Mt tobhe@openbsd.org . 64