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if_bah_zbus.c revision 1.3 
      1 /*	$NetBSD: if_bah_zbus.c,v 1.3 1999/02/16 22:46:57 is Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 1999 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Ignatios Souvatzis.
      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  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *        This product includes software developed by the NetBSD
     21  *        Foundation, Inc. and its contributors.
     22  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  *    contributors may be used to endorse or promote products derived
     24  *    from this software without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  * POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 
     39 /*
     40  * Driver frontend for the Commodore Busines Machines and the
     41  * Ameristar ARCnet card.
     42  */
     43 
     44 #include <sys/types.h>
     45 #include <sys/param.h>
     46 
     47 #include <sys/conf.h>
     48 #include <sys/device.h>
     49 #include <sys/mbuf.h>
     50 #include <sys/socket.h>
     51 #include <sys/systm.h>
     52 #include <sys/kernel.h>
     53 
     54 #include <machine/bus.h>
     55 #include <machine/cpu.h>
     56 #include <machine/intr.h>
     57 
     58 #include <net/if.h>
     59 #include <net/route.h>
     60 
     61 #include <net/if_arc.h>
     62 
     63 #include <amiga/amiga/device.h>
     64 #include <amiga/dev/zbusvar.h>
     65 
     66 #include <dev/ic/smc90cx6var.h>
     67 
     68 /*
     69  * A2060 software status per interface
     70  */
     71 struct bah_zbus_softc {
     72 	struct	bah_softc	sc_bah;
     73 	struct	bus_space_tag	sc_bst;
     74 	struct	isr		sc_isr;
     75 };
     76 
     77 int	bah_zbus_match __P((struct device *, struct cfdata *, void *));
     78 void	bah_zbus_attach __P((struct device *, struct device *, void *));
     79 void	bah_zbus_reset __P((struct bah_softc *, int));
     80 
     81 struct cfattach bah_zbus_ca = {
     82 	sizeof(struct bah_zbus_softc), bah_zbus_match, bah_zbus_attach
     83 };
     84 
     85 int
     86 bah_zbus_match(parent, cfp, aux)
     87 	struct device *parent;
     88 	struct cfdata *cfp;
     89 	void *aux;
     90 {
     91 	struct zbus_args *zap = aux;
     92 
     93 	if ((zap->manid == 514 || zap->manid == 1053) && zap->prodid == 9)
     94 		return (1);
     95 
     96 	return (0);
     97 }
     98 
     99 void
    100 bah_zbus_attach(parent, self, aux)
    101 	struct device *parent, *self;
    102 	void *aux;
    103 {
    104 	struct bah_zbus_softc *bsc = (void *)self;
    105 	struct bah_softc *sc = &bsc->sc_bah;
    106 	struct zbus_args *zap = aux;
    107 
    108 #if (defined(BAH_DEBUG) && (BAH_DEBUG > 2))
    109 	printf("\n%s: attach(0x%x, 0x%x, 0x%x)\n",
    110 	    sc->sc_dev.dv_xname, parent, self, aux);
    111 #endif
    112 	bsc->sc_bst.base = (bus_addr_t)zap->va;
    113 	bsc->sc_bst.stride = 1;
    114 
    115 	sc->sc_bst_r = &bsc->sc_bst;
    116 	sc->sc_regs = bsc->sc_bst.base + 0x4000;
    117 
    118 	sc->sc_bst_m = &bsc->sc_bst;
    119 	sc->sc_mem = bsc->sc_bst.base + 0x8000;
    120 
    121 	sc->sc_reset = bah_zbus_reset;
    122 
    123 	bah_attach_subr(sc);
    124 
    125 	bsc->sc_isr.isr_intr = bahintr;
    126 	bsc->sc_isr.isr_arg = sc;
    127 	bsc->sc_isr.isr_ipl = 2;
    128 	add_isr(&bsc->sc_isr);
    129 }
    130 
    131 void
    132 bah_zbus_reset(sc, onoff)
    133 	struct bah_softc *sc;
    134 	int onoff;
    135 {
    136 	struct bah_zbus_softc *bsc;
    137 	volatile u_int8_t *p;
    138 
    139 	bsc = (struct bah_zbus_softc *)sc;
    140 
    141 	p = (volatile u_int8_t *)bsc->sc_bst.base;
    142 
    143 	p[0x0000] = 0;	/* A2060 reset flipflop */
    144 	p[0xc000] = 0;	/* A560 reset flipflop */
    145 
    146 	if (!onoff)
    147 		return;
    148 
    149 #ifdef M68060
    150 	/* make sure we flush the store buffer before the delay */
    151 	(void)p[0x8000];
    152 #endif
    153 	DELAY(200);
    154 
    155 	p[0x0000] = 0xff;
    156 	p[0xc000] = 0xff;
    157 
    158 	return;
    159 }
    160