Index: share/man/man4/Makefile
===================================================================
--- share/man/man4/Makefile
+++ share/man/man4/Makefile
@@ -70,6 +70,7 @@
 	audit.4 \
 	auditpipe.4 \
 	aue.4 \
+	aw_rsb.4
 	axe.4 \
 	axge.4 \
 	bce.4 \
@@ -593,6 +594,7 @@
 MLINKS+=ath_pci.4 if_ath_pci.4
 MLINKS+=an.4 if_an.4
 MLINKS+=aue.4 if_aue.4
+MLINKS+=aw_rsb.4 aw_p2wi.4
 MLINKS+=axe.4 if_axe.4
 MLINKS+=bce.4 if_bce.4
 MLINKS+=bfe.4 if_bfe.4
Index: share/man/man4/aw_rsb.4
===================================================================
--- /dev/null
+++ share/man/man4/aw_rsb.4
@@ -0,0 +1,70 @@
+.\"-
+.\" Copyright (c) 2017 Emmanuel Vadot <manu@freebsd.org>
+.\" All rights reserved.
+.\"
+.\" 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.
+.\"
+.\" $FreeBSD$
+.\"
+.Dd Dec 25, 2017
+.Dt AW_RSB 4
+.Os
+.Sh NAME
+.Nm aw_rsb
+.Nd driver for the Reduced Serial Bus/Push-Pull Two Wire Interface present
+on some Allwinner SoCs.
+.Sh SYNOPSIS
+.Cd "device rsb"
+.Cd "device p2wi"
+.Sh DESCRIPTION
+The
+.Nm
+device driver provides support for either the RSB or P2WI interface present
+on Allwinner SoCs. RSB/P2WI is an interface close to i2c developped and used
+by Allwinner.
+.Sh HARDWARE
+The current version of the
+.Nm
+driver supports SoCs with one of the following compatible strings :
+.Pp
+.Bl -bullet -compact
+.It
+allwinner,sun6i-a31-p2wi
+.It
+allwinner,sun8i-a23-rsb
+.Sh SEE ALSO
+.Xr fdt 4,
+.Xr iicbus 4,
+.Xr mmc 4
+.Re
+.Sh HISTORY
+The
+.Nm
+device driver first appeared in
+.Fx 11.0 .
+.Sh AUTHORS
+The
+.Nm
+device driver was written by
+.An Jared McNeill Aq Mt jmcneill@invisible.ca .
+Later work and this manual page was done by
+.An Emmanuel Vadot Aq Mt manu@freebsd.org .