diff --git a/sys/arch/sparc/dev/xio.h b/sys/arch/sparc/dev/xio.h
deleted file mode 100644
index 1ad5662b6be1..000000000000
--- a/sys/arch/sparc/dev/xio.h
+++ /dev/null
@@ -1,65 +0,0 @@
-/* $NetBSD: xio.h,v 1.2 1996/03/31 22:38:58 pk Exp $ */
-
-/*
- *
- * Copyright (c) 1995 Charles D. Cranor
- * 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.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *      This product includes software developed by Charles D. Cranor.
- * 4. The name of the author may not be used to endorse or promote products
- *    derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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.
- */
-
-/*
- * x i o . h
- *
- * this file defines the software structure we use to ioctl the
- * 753/7053.   this interface isn't set in stone and may (or may not)
- * need adjustment.
- *
- * author: Chuck Cranor <chuck@ccrc.wustl.edu>
- */
-
-/*
- * xylogic ioctl interface
- */
-
-struct xd_iocmd {
-  u_char cmd;       /* in: command number */
-  u_char subfn;     /* in: subfunction number */
-  u_char errno;     /* out: error number */
-  u_char tries;     /* out: number of tries */
-  u_short sectcnt;  /* in,out: sector count (hw_spt on read drive param) */
-  u_short dlen;     /* in: length of data buffer (good sanity check) */
-  u_long block;     /* in: block number */
-  caddr_t dptr;     /* in: data buffer to do I/O from */
-};
-
-#ifndef DIOSXDCMD
-#define DIOSXDCMD _IOWR('x', 101, struct xd_iocmd) /* do xd command */
-#endif
-
-#define XD_IOCMD_MAXS 16 /* max number of sectors you can do */
-#define XD_IOCMD_HSZ   4 /* size of one header */
-#define XD_IOCMD_DMSZ 24 /* defect map size */