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.\"	$OpenBSD: bcmsdhost.4,v 1.2 2020/04/22 11:35:03 jmc Exp $
.\"
.\" Copyright (c) 2020 Mark Kettenis <kettenis@openbsd.org>
.\"
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.Dd $Mdocdate: April 22 2020 $
.Dt BCMSDHOST 4
.Os
.Sh NAME
.Nm bcmsdhost
.Nd Broadcom BCM238x SD controller
.Sh SYNOPSIS
.Cd "bcmsdhost* at fdt?"
.Cd "sdmmc* at bcmsdhost?"
.Sh DESCRIPTION
The
.Nm
driver provides support for the SD controllers integrated on Broadcom
BCM283x and BCM2711 SoCs.
The driver uses the
.Xr bcmdmac 4
DMA controller to provide DMA support.
.Pp
The
.Xr sdmmc 4
subsystem performs SD/MMC transactions to communicate with whatever SD
devices are inserted into the card slot or directly connected to the
controller.
.Sh SEE ALSO
.Xr bcmdmac 4 ,
.Xr intro 4 ,
.Xr sdmmc 4
.Sh HISTORY
.Ox
support for
.Nm
first appeared in
.Ox 6.7 .
.Sh AUTHORS
.An -nosplit
The
.Nm
driver was written by
.An Jared D. McNeill
for
.Nx
and ported to
.Ox
by
.An Neil Ashford Aq Mt ashfordneil0@gmail.com
and
.An Tobias Heider Aq Mt tobhe@openbsd.org .