77 lines
2.4 KiB
Groff
77 lines
2.4 KiB
Groff
.\"-
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.\" Copyright (c) 2017 Emmanuel Vadot <manu@freebsd.org>
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.\" All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" $FreeBSD$
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.\"
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.Dd Dec 25, 2017
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.Dt AW_MMC 4
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.Os
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.Sh NAME
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.Nm aw_mmc
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.Nd driver for the SD/MMC controller in Allwinner SoC
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.Sh SYNOPSIS
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.Cd "device mmc"
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.Sh DESCRIPTION
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The
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.Nm
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device driver provides support for the Allwinner SD/MMC host controller.
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.Sh HARDWARE
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The current version of the
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.Nm
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driver supports the SD/MMC controller with one of the following compatible strings :
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.Pp
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.Bl -bullet -compact
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.It
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allwinner,sun4i-a10-mmc
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.It
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allwinner,sun5i-a13-mmc
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.It
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allwinner,sun7i-a20-mmc
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.It
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allwinner,sun50i-a64-mmc
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.El
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.Sh SYSCTL VARIABLES
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The following read-only variables are available via
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.Xr sysctl 8 :
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.Bl -tag -width indent
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.It Va dev.aw_mmc.req_timeout
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Request timeout in seconds (default: 10) .
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.El
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.Sh SEE ALSO
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.Xr fdt 4 ,
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.Xr mmc 4
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.Sh HISTORY
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The
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.Nm
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device driver first appeared in
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.Fx 10.0 .
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.Sh AUTHORS
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The
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.Nm
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device driver was originally written by
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.An Alexander Fedorov Aq Mt alexander.fedorov@rtlservice.com .
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Later work and this manual page was done by
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.An Emmanuel Vadot Aq Mt manu@freebsd.org .
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