1.\" $OpenBSD: plrtc.4,v 1.2 2018/06/18 06:06:52 jmc Exp $ 2.\" 3.\" Copyright (c) 2015 Jonathan Gray <jsg@openbsd.org> 4.\" 5.\" Permission to use, copy, modify, and distribute this software for any 6.\" purpose with or without fee is hereby granted, provided that the above 7.\" copyright notice and this permission notice appear in all copies. 8.\" 9.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 10.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 11.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 12.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 13.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 14.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 15.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 16.\" 17.Dd $Mdocdate: June 18 2018 $ 18.Dt PLRTC 4 19.Os 20.Sh NAME 21.Nm plrtc 22.Nd ARM PrimeCell PL031 real-time clock 23.Sh SYNOPSIS 24.Cd "plrtc* at fdt?" 25.Sh DESCRIPTION 26The 27.Nm 28driver supports the ARM PrimeCell PL031 real-time clock. 29.Rs 30.%T ARM PrimeCell Real Time Clock (PL031) Technical Reference Manual 31.%V ARM DDI 0224 32.Re 33.Sh HISTORY 34The 35.Nm 36driver first appeared in 37.Ox 5.8 . 38