1.\"- 2.\" Copyright (c) 2017 Emmanuel Vadot <manu@freebsd.org> 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.\" $FreeBSD$ 27.\" 28.Dd Dec 25, 2017 29.Dt AW_MMC 4 30.Os 31.Sh NAME 32.Nm aw_mmc 33.Nd driver for the SD/MMC controller in Allwinner SoC 34.Sh SYNOPSIS 35.Cd "device mmc" 36.Sh DESCRIPTION 37The 38.Nm 39device driver provides support for the Allwinner SD/MMC host controller. 40.Sh HARDWARE 41The current version of the 42.Nm 43driver supports the SD/MMC controller with one of the following compatible strings : 44.Pp 45.Bl -bullet -compact 46.It 47allwinner,sun4i-a10-mmc 48.It 49allwinner,sun5i-a13-mmc 50.It 51allwinner,sun7i-a20-mmc 52.It 53allwinner,sun50i-a64-mmc 54.El 55.Sh SYSCTL VARIABLES 56The following read-only variables are available via 57.Xr sysctl 8 : 58.Bl -tag -width indent 59.It Va dev.aw_mmc.req_timeout 60Request timeout in seconds (default: 10) . 61.El 62.Sh SEE ALSO 63.Xr fdt 4 , 64.Xr mmc 4 65.Sh HISTORY 66The 67.Nm 68device driver first appeared in 69.Fx 10.0 . 70.Sh AUTHORS 71The 72.Nm 73device driver was originally written by 74.An Alexander Fedorov Aq Mt alexander.fedorov@rtlservice.com . 75Later work and this manual page was done by 76.An Emmanuel Vadot Aq Mt manu@freebsd.org . 77