Add cduart(4), a driver for the Cadence UART found on Xilinx Zynq SoCs.

Tested on Xilinx Zynq-7000.

Input and OK kettenis@

2 files changed, 39 insertions, 2 deletions

diff --git a/share/man/man4/Makefile b/share/man/man4/Makefile
index 0edb314e09f..734737cf42c 100644
--- a/share/man/man4/Makefile
+++ b/share/man/man4/Makefile
@@ -1,4 +1,4 @@
-#	$OpenBSD: Makefile,v 1.795 2021/04/24 05:16:27 jsg Exp $
+#	$OpenBSD: Makefile,v 1.796 2021/04/24 07:49:11 visa Exp $
 
 MAN=	aac.4 abcrtc.4 abl.4 ac97.4 acphy.4 acrtc.4 \
 	acpi.4 acpiac.4 acpials.4 acpiasus.4 acpibat.4 \
@@ -23,7 +23,8 @@ MAN=	aac.4 abcrtc.4 abl.4 ac97.4 acphy.4 acrtc.4 \
 	bcmtmon.4 bdpmic.4 \
 	berkwdt.4 bge.4 bgw.4 bio.4 bpe.4 bktr.4 bmtphy.4 bnx.4 bnxt.4 \
 	boca.4 bpf.4 brgphy.4 bridge.4 brswphy.4 bse.4 bwfm.4 bwi.4 bytgpio.4 \
-	cac.4 cas.4 cardbus.4 carp.4 ccp.4 ccpmic.4 cd.4 cdce.4 cfxga.4 \
+	cac.4 cas.4 cardbus.4 carp.4 ccp.4 ccpmic.4 cd.4 cdce.4 \
+	cduart.4 cfxga.4 \
 	ch.4 chvgpio.4 ciphy.4 ciss.4 clcs.4 clct.4 cmpci.4 \
 	com.4 cue.4 cwfg.4 cy.4 cz.4 \
 	dc.4 dcphy.4 ddb.4 de.4 diskmap.4 divert.4 drm.4 dsxrtc.4 dt.4 \
diff --git a/share/man/man4/cduart.4 b/share/man/man4/cduart.4
new file mode 100644
index 00000000000..9d330d2657a
--- /dev/null
+++ b/share/man/man4/cduart.4
@@ -0,0 +1,36 @@
+.\"	$OpenBSD: cduart.4,v 1.1 2021/04/24 07:49:11 visa Exp $
+.\"
+.\" Copyright (c) 2021 Visa Hankala
+.\"
+.\" 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 $Mdocdate: April 24 2021 $
+.Dt CDUART 4
+.Os
+.Sh NAME
+.Nm cduart
+.Nd Cadence Universal Asynchronous Receiver/Transmitter
+.Sh SYNOPSIS
+.Cd "cduart* at fdt?"
+.Sh DESCRIPTION
+The
+.Nm
+driver supports the Cadence Universal Asynchronous
+Receiver/Transmitter (UART).
+.Sh SEE ALSO
+.Xr tty 4
+.Sh HISTORY
+The
+.Nm
+driver first appeared in
+.Ox 7.0 .