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+.\"-
+.\" Copyright (c) 2017 Emmanuel Vadot <manu@freebsd.org>
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.Dd October 20, 2025
+.Dt AW_MMC 4
+.Os
+.Sh NAME
+.Nm aw_mmc
+.Nd driver for the SD/MMC controller in Allwinner SoC
+.Sh SYNOPSIS
+.Cd "device mmc"
+.Sh DESCRIPTION
+The
+.Nm
+device driver provides support for the Allwinner SD/MMC host controller.
+.Sh HARDWARE
+The current version of the
+.Nm
+driver supports the SD/MMC controller with one of the following compatible strings :
+.Pp
+.Bl -bullet -compact
+.It
+allwinner,sun4i-a10-mmc
+.It
+allwinner,sun5i-a13-mmc
+.It
+allwinner,sun7i-a20-mmc
+.It
+allwinner,sun50i-a64-mmc
+.It
+allwinner,sun20i-d1-mmc
+.El
+.Sh SYSCTL VARIABLES
+The following read-only variables are available via
+.Xr sysctl 8 :
+.Bl -tag -width indent
+.It Va dev.aw_mmc.req_timeout
+Request timeout in seconds (default: 10) .
+.El
+.Sh SEE ALSO
+.Xr fdt 4 ,
+.Xr mmc 4
+.Sh HISTORY
+The
+.Nm
+device driver first appeared in
+.Fx 10.0 .
+.Sh AUTHORS
+The
+.Nm
+device driver was originally written by
+.An Alexander Fedorov Aq Mt alexander.fedorov@rtlservice.com .
+Later work and this manual page was done by
+.An Emmanuel Vadot Aq Mt manu@freebsd.org .