1 /* $NetBSD: if_bah_zbus.c,v 1.8 2002/01/28 09:56:58 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 #include <sys/cdefs.h> 40 __KERNEL_RCSID(0, "$NetBSD: if_bah_zbus.c,v 1.8 2002/01/28 09:56:58 aymeric Exp $"); 41 42 /* 43 * Driver frontend for the Commodore Busines Machines and the 44 * Ameristar ARCnet card. 45 */ 46 47 #include <sys/types.h> 48 #include <sys/param.h> 49 50 #include <sys/conf.h> 51 #include <sys/device.h> 52 #include <sys/mbuf.h> 53 #include <sys/socket.h> 54 #include <sys/systm.h> 55 #include <sys/kernel.h> 56 57 #include <machine/bus.h> 58 #include <machine/cpu.h> 59 #include <machine/intr.h> 60 61 #include <net/if.h> 62 #include <net/route.h> 63 64 #include <net/if_arc.h> 65 66 #include <amiga/amiga/device.h> 67 #include <amiga/dev/zbusvar.h> 68 69 #include <dev/ic/smc90cx6var.h> 70 71 /* 72 * A2060 software status per interface 73 */ 74 struct bah_zbus_softc { 75 struct bah_softc sc_bah; 76 struct bus_space_tag sc_bst; 77 struct isr sc_isr; 78 }; 79 80 int bah_zbus_match(struct device *, struct cfdata *, void *); 81 void bah_zbus_attach(struct device *, struct device *, void *); 82 void bah_zbus_reset(struct bah_softc *, int); 83 84 struct cfattach bah_zbus_ca = { 85 sizeof(struct bah_zbus_softc), bah_zbus_match, bah_zbus_attach 86 }; 87 88 int 89 bah_zbus_match(struct device *parent, struct cfdata *cfp, 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(struct device *parent, struct device *self, void *aux) 101 { 102 struct bah_zbus_softc *bsc = (void *)self; 103 struct bah_softc *sc = &bsc->sc_bah; 104 struct zbus_args *zap = aux; 105 106 #if (defined(BAH_DEBUG) && (BAH_DEBUG > 2)) 107 printf("\n%s: attach(0x%x, 0x%x, 0x%x)\n", 108 sc->sc_dev.dv_xname, parent, self, aux); 109 #endif 110 bsc->sc_bst.base = (bus_addr_t)zap->va; 111 bsc->sc_bst.absm = &amiga_bus_stride_2; 112 113 sc->sc_bst_r = &bsc->sc_bst; 114 sc->sc_regs = bsc->sc_bst.base + 0x4000; 115 116 sc->sc_bst_m = &bsc->sc_bst; 117 sc->sc_mem = bsc->sc_bst.base + 0x8000; 118 119 sc->sc_reset = bah_zbus_reset; 120 121 bah_attach_subr(sc); 122 123 bsc->sc_isr.isr_intr = bahintr; 124 bsc->sc_isr.isr_arg = sc; 125 bsc->sc_isr.isr_ipl = 2; 126 add_isr(&bsc->sc_isr); 127 } 128 129 void 130 bah_zbus_reset(struct bah_softc *sc, int onoff) 131 { 132 struct bah_zbus_softc *bsc; 133 volatile u_int8_t *p; 134 135 bsc = (struct bah_zbus_softc *)sc; 136 137 p = (volatile u_int8_t *)bsc->sc_bst.base; 138 139 p[0x0000] = 0; /* A2060 reset flipflop */ 140 p[0xc000] = 0; /* A560 reset flipflop */ 141 142 if (!onoff) 143 return; 144 145 #ifdef M68060 146 /* make sure we flush the store buffer before the delay */ 147 (void)p[0x8000]; 148 #endif 149 DELAY(200); 150 151 p[0x0000] = 0xff; 152 p[0xc000] = 0xff; 153 154 return; 155 } 156