155 lines
4.4 KiB
C
155 lines
4.4 KiB
C
/* $NetBSD: if_bah_zbus.c,v 1.10 2002/10/02 04:55:51 thorpej Exp $ */
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/*-
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* Copyright (c) 1994, 1995, 1998 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Ignatios Souvatzis.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: if_bah_zbus.c,v 1.10 2002/10/02 04:55:51 thorpej Exp $");
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/*
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* Driver frontend for the Commodore Busines Machines and the
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* Ameristar ARCnet card.
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*/
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#include <sys/types.h>
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#include <sys/param.h>
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#include <sys/conf.h>
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#include <sys/device.h>
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#include <sys/mbuf.h>
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#include <sys/socket.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <machine/bus.h>
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#include <machine/cpu.h>
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#include <machine/intr.h>
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#include <net/if.h>
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#include <net/route.h>
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#include <net/if_arc.h>
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#include <amiga/amiga/device.h>
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#include <amiga/dev/zbusvar.h>
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#include <dev/ic/smc90cx6var.h>
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/*
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* A2060 software status per interface
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*/
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struct bah_zbus_softc {
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struct bah_softc sc_bah;
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struct bus_space_tag sc_bst;
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struct isr sc_isr;
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};
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int bah_zbus_match(struct device *, struct cfdata *, void *);
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void bah_zbus_attach(struct device *, struct device *, void *);
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void bah_zbus_reset(struct bah_softc *, int);
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CFATTACH_DECL(bah_zbus, sizeof(struct bah_zbus_softc),
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bah_zbus_match, bah_zbus_attach, NULL, NULL);
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int
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bah_zbus_match(struct device *parent, struct cfdata *cfp, void *aux)
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{
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struct zbus_args *zap = aux;
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if ((zap->manid == 514 || zap->manid == 1053) && zap->prodid == 9)
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return (1);
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return (0);
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}
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void
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bah_zbus_attach(struct device *parent, struct device *self, void *aux)
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{
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struct bah_zbus_softc *bsc = (void *)self;
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struct bah_softc *sc = &bsc->sc_bah;
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struct zbus_args *zap = aux;
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#if (defined(BAH_DEBUG) && (BAH_DEBUG > 2))
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printf("\n%s: attach(0x%x, 0x%x, 0x%x)\n",
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sc->sc_dev.dv_xname, parent, self, aux);
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#endif
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bsc->sc_bst.base = (bus_addr_t)zap->va;
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bsc->sc_bst.absm = &amiga_bus_stride_2;
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sc->sc_bst_r = &bsc->sc_bst;
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sc->sc_regs = bsc->sc_bst.base + 0x4000;
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sc->sc_bst_m = &bsc->sc_bst;
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sc->sc_mem = bsc->sc_bst.base + 0x8000;
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sc->sc_reset = bah_zbus_reset;
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bah_attach_subr(sc);
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bsc->sc_isr.isr_intr = bahintr;
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bsc->sc_isr.isr_arg = sc;
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bsc->sc_isr.isr_ipl = 2;
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add_isr(&bsc->sc_isr);
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}
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void
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bah_zbus_reset(struct bah_softc *sc, int onoff)
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{
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struct bah_zbus_softc *bsc;
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volatile u_int8_t *p;
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bsc = (struct bah_zbus_softc *)sc;
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p = (volatile u_int8_t *)bsc->sc_bst.base;
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p[0x0000] = 0; /* A2060 reset flipflop */
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p[0xc000] = 0; /* A560 reset flipflop */
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if (!onoff)
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return;
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#ifdef M68060
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/* make sure we flush the store buffer before the delay */
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(void)p[0x8000];
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#endif
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DELAY(200);
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p[0x0000] = 0xff;
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p[0xc000] = 0xff;
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return;
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}
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