Add micphy(4) manpage

share/man/man4/micphy.4

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+.\"	$NetBSD: micphy.4,v 1.1 2014/03/03 01:35:08 ozaki-r Exp $
+.\"
+.\" Copyright (c) 2014 The NetBSD Foundation, Inc.
+.\" All rights reserved.
+.\"
+.\" Permission to use, copy, modify, and distribute this software for any
+.\" purpose with or without fee is hereby granted, provided that the above
+.\" copyright notice and this permission notice appear in all copies.
+.\"
+.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+.\"
+.Dd March 3, 2014
+.Dt MICPHY 4
+.Os
+.Sh NAME
+.Nm micphy
+.Nd Micrel KSZ9021 10/100/1000 PHY driver
+.Sh SYNOPSIS
+.Cd "micphy* at mii? phy ?"
+.Sh DESCRIPTION
+The
+.Nm
+driver currently supports only Micrel KSZ9021RN PHY.
+The driver has a fixup for
+.Xr cpsw 4
+which requires Gig-E PHYs to adjust RGMII signal timing.
+.Sh SEE ALSO
+.Xr cpsw 4 ,
+.Xr ifmedia 4 ,
+.Xr intro 4 ,
+.Xr mii 4 ,
+.Xr ifconfig 8