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      1 /*	$NetBSD: memcvar.h,v 1.4 2019/08/21 04:17:41 msaitoh Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2002 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Steve C. Woodford.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #ifndef	_MVME_MEMCVAR_H
     33 #define	_MVME_MEMCVAR_H
     34 
     35 struct memc_softc {
     36 	device_t		sc_dev;
     37 	bus_space_tag_t		sc_bust;
     38 	bus_space_handle_t	sc_bush;
     39 	struct evcnt		sc_evcnt;
     40 };
     41 
     42 #define MEMC_NDEVS	2
     43 
     44 #define	memc_reg_read(sc, off) \
     45 	    bus_space_read_1((sc)->sc_bust, (sc)->sc_bush, (off))
     46 #define	memc_reg_write(sc, off, v) \
     47 	    bus_space_write_1((sc)->sc_bust, (sc)->sc_bush, (off), (v))
     48 
     49 /*
     50  * Some tweakable parameters. Mind you, I don't recommend changing
     51  * the ipl...
     52  * XXX: This should probably be ipl 7
     53  */
     54 #ifdef MVME68K
     55 #define MEMC_IRQ_LEVEL		6
     56 #else
     57 #error Define irq level for memory controller
     58 #endif
     59 
     60 extern	void	memc_init(struct memc_softc *);
     61 
     62 #endif	/* _MVME_MEMCREG_H */
     63