1 /* $NetBSD: if_hme_sbus.c,v 1.21 2005/12/11 12:23:44 christos 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 1.21 2005/12/11 12:23:44 christos 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(struct device *, struct cfdata *, void *); 74 void hmeattach_sbus(struct device *, struct device *, void *); 75 76 CFATTACH_DECL(hme_sbus, sizeof(struct hmesbus_softc), 77 hmematch_sbus, hmeattach_sbus, NULL, NULL); 78 79 int 80 hmematch_sbus(parent, cf, aux) 81 struct device *parent; 82 struct cfdata *cf; 83 void *aux; 84 { 85 struct sbus_attach_args *sa = aux; 86 87 return (strcmp(cf->cf_name, sa->sa_name) == 0 || 88 strcmp("SUNW,qfe", sa->sa_name) == 0 || 89 strcmp("SUNW,hme", sa->sa_name) == 0); 90 } 91 92 void 93 hmeattach_sbus(parent, self, aux) 94 struct device *parent, *self; 95 void *aux; 96 { 97 struct sbus_attach_args *sa = aux; 98 struct hmesbus_softc *hsc = (void *)self; 99 struct hme_softc *sc = &hsc->hsc_hme; 100 struct sbusdev *sd = &hsc->hsc_sbus; 101 u_int32_t burst, sbusburst; 102 int node; 103 104 node = sa->sa_node; 105 106 /* Pass on the bus tags */ 107 sc->sc_bustag = sa->sa_bustag; 108 sc->sc_dmatag = sa->sa_dmatag; 109 110 printf(": Sun Happy Meal Ethernet (%s)\n", 111 sa->sa_name); 112 113 if (sa->sa_nreg < 5) { 114 printf("%s: only %d register sets\n", 115 self->dv_xname, sa->sa_nreg); 116 return; 117 } 118 119 /* 120 * Map five register banks: 121 * 122 * bank 0: HME SEB registers 123 * bank 1: HME ETX registers 124 * bank 2: HME ERX registers 125 * bank 3: HME MAC registers 126 * bank 4: HME MIF registers 127 * 128 */ 129 if (sbus_bus_map(sa->sa_bustag, 130 sa->sa_reg[0].oa_space, 131 sa->sa_reg[0].oa_base, 132 (bus_size_t)sa->sa_reg[0].oa_size, 133 0, &sc->sc_seb) != 0) { 134 printf("%s: cannot map SEB registers\n", self->dv_xname); 135 return; 136 } 137 if (sbus_bus_map(sa->sa_bustag, 138 sa->sa_reg[1].oa_space, 139 sa->sa_reg[1].oa_base, 140 (bus_size_t)sa->sa_reg[1].oa_size, 141 0, &sc->sc_etx) != 0) { 142 printf("%s: cannot map ETX registers\n", self->dv_xname); 143 return; 144 } 145 if (sbus_bus_map(sa->sa_bustag, 146 sa->sa_reg[2].oa_space, 147 sa->sa_reg[2].oa_base, 148 (bus_size_t)sa->sa_reg[2].oa_size, 149 0, &sc->sc_erx) != 0) { 150 printf("%s: cannot map ERX registers\n", self->dv_xname); 151 return; 152 } 153 if (sbus_bus_map(sa->sa_bustag, 154 sa->sa_reg[3].oa_space, 155 sa->sa_reg[3].oa_base, 156 (bus_size_t)sa->sa_reg[3].oa_size, 157 0, &sc->sc_mac) != 0) { 158 printf("%s: cannot map MAC registers\n", self->dv_xname); 159 return; 160 } 161 if (sbus_bus_map(sa->sa_bustag, 162 sa->sa_reg[4].oa_space, 163 sa->sa_reg[4].oa_base, 164 (bus_size_t)sa->sa_reg[4].oa_size, 165 0, &sc->sc_mif) != 0) { 166 printf("%s: cannot map MIF registers\n", self->dv_xname); 167 return; 168 } 169 170 sd->sd_reset = (void *)hme_reset; 171 sbus_establish(sd, self); 172 173 prom_getether(node, sc->sc_enaddr); 174 175 /* 176 * Get transfer burst size from PROM and pass it on 177 * to the back-end driver. 178 */ 179 sbusburst = ((struct sbus_softc *)parent)->sc_burst; 180 if (sbusburst == 0) 181 sbusburst = SBUS_BURST_32 - 1; /* 1->16 */ 182 183 burst = prom_getpropint(node, "burst-sizes", -1); 184 if (burst == -1) 185 /* take SBus burst sizes */ 186 burst = sbusburst; 187 188 /* Clamp at parent's burst sizes */ 189 burst &= sbusburst; 190 191 /* Translate into plain numerical format */ 192 sc->sc_burst = (burst & SBUS_BURST_32) ? 32 : 193 (burst & SBUS_BURST_16) ? 16 : 0; 194 195 sc->sc_pci = 0; /* XXXXX should all be done in bus_dma. */ 196 hme_config(sc); 197 198 /* Establish interrupt handler */ 199 if (sa->sa_nintr != 0) 200 (void)bus_intr_establish(sa->sa_bustag, sa->sa_pri, IPL_NET, 201 hme_intr, sc); 202 } 203