1 /* $NetBSD: if_bah_zbus.c,v 1.6 2000/01/23 21:06:12 aymeric Exp $ */ 2 3 /*- 4 * Copyright (c) 1994, 1995, 1998 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.absm = &amiga_bus_stride_2; 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