1 /* $NetBSD: if_hme_sbus.c,v 1.11 2002/03/20 20:39:15 eeh 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 Paul Kranenburg. 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 * SBus front-end device driver for the HME ethernet device. 41 */ 42 43 #include <sys/cdefs.h> 44 __KERNEL_RCSID(0, "$NetBSD: if_hme_sbus.c,v 1.11 2002/03/20 20:39:15 eeh Exp $"); 45 46 #include <sys/param.h> 47 #include <sys/systm.h> 48 #include <sys/syslog.h> 49 #include <sys/device.h> 50 #include <sys/malloc.h> 51 #include <sys/socket.h> 52 53 #include <net/if.h> 54 #include <net/if_dl.h> 55 #include <net/if_ether.h> 56 #include <net/if_media.h> 57 58 #include <dev/mii/mii.h> 59 #include <dev/mii/miivar.h> 60 61 #include <machine/bus.h> 62 #include <machine/intr.h> 63 #include <machine/autoconf.h> 64 65 #include <dev/sbus/sbusvar.h> 66 #include <dev/ic/hmevar.h> 67 68 struct hmesbus_softc { 69 struct hme_softc hsc_hme; /* HME device */ 70 struct sbusdev hsc_sbus; /* SBus device */ 71 }; 72 73 int hmematch_sbus __P((struct device *, struct cfdata *, void *)); 74 void hmeattach_sbus __P((struct device *, struct device *, void *)); 75 76 struct cfattach hme_sbus_ca = { 77 sizeof(struct hmesbus_softc), hmematch_sbus, hmeattach_sbus 78 }; 79 80 int 81 hmematch_sbus(parent, cf, aux) 82 struct device *parent; 83 struct cfdata *cf; 84 void *aux; 85 { 86 struct sbus_attach_args *sa = aux; 87 88 return (strcmp(cf->cf_driver->cd_name, sa->sa_name) == 0 || 89 strcmp("SUNW,qfe", sa->sa_name) == 0 || 90 strcmp("SUNW,hme", sa->sa_name) == 0); 91 } 92 93 void 94 hmeattach_sbus(parent, self, aux) 95 struct device *parent, *self; 96 void *aux; 97 { 98 struct sbus_attach_args *sa = aux; 99 struct hmesbus_softc *hsc = (void *)self; 100 struct hme_softc *sc = &hsc->hsc_hme; 101 struct sbusdev *sd = &hsc->hsc_sbus; 102 u_int32_t burst, sbusburst; 103 int node; 104 105 /* XXX the following declarations should be elsewhere */ 106 extern void myetheraddr __P((u_char *)); 107 108 node = sa->sa_node; 109 110 /* Pass on the bus tags */ 111 sc->sc_bustag = sa->sa_bustag; 112 sc->sc_dmatag = sa->sa_dmatag; 113 114 printf(": Sun Happy Meal Ethernet (%s)\n", 115 sa->sa_name); 116 117 if (sa->sa_nreg < 5) { 118 printf("%s: only %d register sets\n", 119 self->dv_xname, sa->sa_nreg); 120 return; 121 } 122 123 /* 124 * Map five register banks: 125 * 126 * bank 0: HME SEB registers 127 * bank 1: HME ETX registers 128 * bank 2: HME ERX registers 129 * bank 3: HME MAC registers 130 * bank 4: HME MIF registers 131 * 132 */ 133 if (sbus_bus_map(sa->sa_bustag, 134 sa->sa_reg[0].sbr_slot, 135 sa->sa_reg[0].sbr_offset, 136 (bus_size_t)sa->sa_reg[0].sbr_size, 137 0, &sc->sc_seb) != 0) { 138 printf("%s: cannot map SEB registers\n", self->dv_xname); 139 return; 140 } 141 if (sbus_bus_map(sa->sa_bustag, 142 sa->sa_reg[1].sbr_slot, 143 sa->sa_reg[1].sbr_offset, 144 (bus_size_t)sa->sa_reg[1].sbr_size, 145 0, &sc->sc_etx) != 0) { 146 printf("%s: cannot map ETX registers\n", self->dv_xname); 147 return; 148 } 149 if (sbus_bus_map(sa->sa_bustag, 150 sa->sa_reg[2].sbr_slot, 151 sa->sa_reg[2].sbr_offset, 152 (bus_size_t)sa->sa_reg[2].sbr_size, 153 0, &sc->sc_erx) != 0) { 154 printf("%s: cannot map ERX registers\n", self->dv_xname); 155 return; 156 } 157 if (sbus_bus_map(sa->sa_bustag, 158 sa->sa_reg[3].sbr_slot, 159 sa->sa_reg[3].sbr_offset, 160 (bus_size_t)sa->sa_reg[3].sbr_size, 161 0, &sc->sc_mac) != 0) { 162 printf("%s: cannot map MAC registers\n", self->dv_xname); 163 return; 164 } 165 if (sbus_bus_map(sa->sa_bustag, 166 sa->sa_reg[4].sbr_slot, 167 sa->sa_reg[4].sbr_offset, 168 (bus_size_t)sa->sa_reg[4].sbr_size, 169 0, &sc->sc_mif) != 0) { 170 printf("%s: cannot map MIF registers\n", self->dv_xname); 171 return; 172 } 173 174 sd->sd_reset = (void *)hme_reset; 175 sbus_establish(sd, self); 176 177 myetheraddr(sc->sc_enaddr); 178 179 /* 180 * Get transfer burst size from PROM and pass it on 181 * to the back-end driver. 182 */ 183 sbusburst = ((struct sbus_softc *)parent)->sc_burst; 184 if (sbusburst == 0) 185 sbusburst = SBUS_BURST_32 - 1; /* 1->16 */ 186 187 burst = PROM_getpropint(node, "burst-sizes", -1); 188 if (burst == -1) 189 /* take SBus burst sizes */ 190 burst = sbusburst; 191 192 /* Clamp at parent's burst sizes */ 193 burst &= sbusburst; 194 195 /* Translate into plain numerical format */ 196 sc->sc_burst = (burst & SBUS_BURST_32) ? 32 : 197 (burst & SBUS_BURST_16) ? 16 : 0; 198 199 sc->sc_pci = 0; /* XXXXX should all be done in bus_dma. */ 200 hme_config(sc); 201 202 /* Establish interrupt handler */ 203 if (sa->sa_nintr != 0) 204 (void)bus_intr_establish(sa->sa_bustag, sa->sa_pri, IPL_NET, 0, 205 hme_intr, sc); 206 } 207