diff --git a/usr.bin/mkubootimage/mkubootimage.1 b/usr.bin/mkubootimage/mkubootimage.1
index 6ee9c16b92b1..4de9d5c69d4e 100644
--- a/usr.bin/mkubootimage/mkubootimage.1
+++ b/usr.bin/mkubootimage/mkubootimage.1
@@ -1,4 +1,4 @@
-.\"	$NetBSD: mkubootimage.1,v 1.10 2017/07/15 12:10:31 wiz Exp $
+.\"	$NetBSD: mkubootimage.1,v 1.11 2017/09/29 21:18:28 jmcneill Exp $
 .\"
 .\" Copyright (c) 2012 The NetBSD Foundation, Inc.
 .\" All rights reserved.
@@ -27,7 +27,7 @@
 .\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 .\" POSSIBILITY OF SUCH DAMAGE.
 .\"
-.Dd July 15, 2017
+.Dd September 29, 2017
 .Dt MKUBOOTIMAGE 1
 .Os
 .Sh NAME
@@ -36,7 +36,7 @@
 .Sh SYNOPSIS
 .Nm
 .Op Fl h
-.Fl A No ( arm Ns | Ns arm64 Ns | Ns i386 Ns | Ns mips Ns | Ns mips64 Ns | Ns or1k Ns | Ns powerpc )
+.Fl A No ( arm Ns | Ns arm64 Ns | Ns i386 Ns | Ns mips Ns | Ns mips64 Ns | Ns or1k Ns | Ns powerpc Ns | Ns sh )
 .Fl a Ar address
 .Op Fl C Po bz2 Ns | Ns gz Ns | Ns lzma Ns | Ns lzo Ns | Ns none Pc
 .Op Fl E Ar address
@@ -55,7 +55,7 @@ utility is used to create an image for Das U-Boot, the
 .Pp
 The arguments are as follows:
 .Bl -tag -width indent
-.It Fl A No ( arm Ns | Ns arm64 Ns | Ns i386 Ns | Ns mips Ns | Ns mips64 Ns | Ns or1k Ns | Ns powerpc )
+.It Fl A No ( arm Ns | Ns arm64 Ns | Ns i386 Ns | Ns mips Ns | Ns mips64 Ns | Ns or1k Ns | Ns powerpc Ns | Ns sh )
 Defines the architecture.
 This is required.
 .It Fl a Ar address
diff --git a/usr.bin/mkubootimage/mkubootimage.c b/usr.bin/mkubootimage/mkubootimage.c
index 65ac1724a75a..6d29c094e6e5 100644
--- a/usr.bin/mkubootimage/mkubootimage.c
+++ b/usr.bin/mkubootimage/mkubootimage.c
@@ -1,4 +1,4 @@
-/* $NetBSD: mkubootimage.c,v 1.20 2017/07/15 11:13:08 jmcneill Exp $ */
+/* $NetBSD: mkubootimage.c,v 1.21 2017/09/29 21:18:28 jmcneill Exp $ */
 
 /*-
  * Copyright (c) 2010 Jared D. McNeill <jmcneill@invisible.ca>
@@ -30,7 +30,7 @@
 #endif
 
 #include <sys/cdefs.h>
-__RCSID("$NetBSD: mkubootimage.c,v 1.20 2017/07/15 11:13:08 jmcneill Exp $");
+__RCSID("$NetBSD: mkubootimage.c,v 1.21 2017/09/29 21:18:28 jmcneill Exp $");
 
 #include <sys/mman.h>
 #include <sys/stat.h>
@@ -106,12 +106,13 @@ static const struct uboot_arch {
 	const char *name;
 } uboot_arch[] = {
 	{ IH_ARCH_ARM,		"arm" },
+	{ IH_ARCH_ARM64,	"arm64" },
 	{ IH_ARCH_I386,		"i386" },
 	{ IH_ARCH_MIPS,		"mips" },
 	{ IH_ARCH_MIPS64,	"mips64" },
 	{ IH_ARCH_PPC,		"powerpc" },
 	{ IH_ARCH_OPENRISC,	"or1k" },
-	{ IH_ARCH_ARM64,	"arm64" },
+	{ IH_ARCH_SH,		"sh" },
 };
 
 static enum uboot_image_arch
@@ -219,7 +220,7 @@ __dead static void
 usage(void)
 {
 	fprintf(stderr, "usage: mkubootimage -A "
-	    "<arm|arm64|i386|mips|mips64|or1k|powerpc>");
+	    "<arm|arm64|i386|mips|mips64|or1k|powerpc|sh>");
 	fprintf(stderr, " -C <none|bz2|gz|lzma|lzo>");
 	fprintf(stderr, " -O <openbsd|netbsd|freebsd|linux>");
 	fprintf(stderr, " -T <standalone|kernel|kernel_noload|ramdisk|fs|script>");
diff --git a/usr.bin/mkubootimage/uboot.h b/usr.bin/mkubootimage/uboot.h
index b33a25f5658f..ec2423e31ff8 100644
--- a/usr.bin/mkubootimage/uboot.h
+++ b/usr.bin/mkubootimage/uboot.h
@@ -1,4 +1,4 @@
-/* $NetBSD: uboot.h,v 1.7 2017/07/15 11:13:08 jmcneill Exp $ */
+/* $NetBSD: uboot.h,v 1.8 2017/09/29 21:18:28 jmcneill Exp $ */
 
 /*-
  * Copyright (c) 2010 Jared D. McNeill <jmcneill@invisible.ca>
@@ -43,6 +43,7 @@ enum uboot_image_arch {
 	IH_ARCH_MIPS = 5,
 	IH_ARCH_MIPS64 = 6,
 	IH_ARCH_PPC = 7,
+	IH_ARCH_SH = 9,
 	IH_ARCH_OPENRISC = 21,
 	IH_ARCH_ARM64 = 22
 };