diff --git a/drivers/char/rio/mca.h b/drivers/char/rio/mca.h
deleted file mode 100644
index d01e76b..0000000
--- a/drivers/char/rio/mca.h
+++ /dev/null
@@ -1,73 +0,0 @@
-/*
-** -----------------------------------------------------------------------------
-**
-**  Perle Specialix driver for Linux
-**  Ported from existing RIO Driver for SCO sources.
- *
- *  (C) 1990 - 2000 Specialix International Ltd., Byfleet, Surrey, UK.
- *
- *      This program is free software; you can redistribute it and/or modify
- *      it under the terms of the GNU General Public License as published by
- *      the Free Software Foundation; either version 2 of the License, or
- *      (at your option) any later version.
- *
- *      This program is distributed in the hope that it will be useful,
- *      but WITHOUT ANY WARRANTY; without even the implied warranty of
- *      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *      GNU General Public License for more details.
- *
- *      You should have received a copy of the GNU General Public License
- *      along with this program; if not, write to the Free Software
- *      Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-**
-**	Module		: mca.h
-**	SID		: 1.2
-**	Last Modified	: 11/6/98 11:34:11
-**	Retrieved	: 11/6/98 11:34:21
-**
-**  ident @(#)mca.h	1.2
-**
-** -----------------------------------------------------------------------------
-*/
-
-#ifndef __rio_mca_h__
-#define	__rio_mca_h__
-
-#ifdef SCCS_LABELS
-static char *_mca_h_sccs_ = "@(#)mca.h	1.2";
-#endif
-
-/*
-** Micro Channel stuff
-*/
-
-#define	McaMaxSlots	8
-#define McaSlotSelect	0x96
-#define	McaSlotEnable	0x08
-#define	McaIdLow	0x100
-#define	McaIdHigh	0x101
-#define	McaIrqEnable	0x102
-#define	McaMemory	0x103
-#define McaRIOId	0x6a5c
-#define	McaIrq9		0x00
-#define	McaIrq3		0x02
-#define	McaIrq4		0x04
-#define	McaIrq7		0x06
-#define	McaIrq10	0x08
-#define	McaIrq11	0x0A
-#define	McaIrq12	0x0C
-#define	McaIrq15	0x0E
-#define McaIrqMask	0x0E
-#define	McaCardEnable	0x01
-#define	McaAddress(X)	(((X)&0xFF)<<16)
-
-#define	McaTpFastLinks	        0x40
-#define	McaTpSlowLinks	        0x00
-#define	McaTpBootFromRam	0x01
-#define	McaTpBootFromLink	0x00
-#define	McaTpBusEnable		0x02
-#define	McaTpBusDisable		0x00
-
-#define	RIO_MCA_DEFAULT_MODE	SLOW_LINKS
-
-#endif				/* __rio_mca_h__ */