1 /* $OpenBSD: if_hme_sbus.c,v 1.13 2009/07/12 21:27:09 kettenis Exp $ */ 2 /* $NetBSD: if_hme_sbus.c,v 1.6 2001/02/28 14:52:48 mrg Exp $ */ 3 4 /*- 5 * Copyright (c) 1999 The NetBSD Foundation, Inc. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to The NetBSD Foundation 9 * by Paul Kranenburg. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30 * POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 /* 34 * SBus front-end device driver for the HME ethernet device. 35 */ 36 37 #include <sys/param.h> 38 #include <sys/systm.h> 39 #include <sys/syslog.h> 40 #include <sys/device.h> 41 #include <sys/malloc.h> 42 #include <sys/socket.h> 43 44 #include <net/if.h> 45 #include <net/if_dl.h> 46 #include <net/if_media.h> 47 48 #ifdef INET 49 #include <netinet/in.h> 50 #include <netinet/in_systm.h> 51 #include <netinet/in_var.h> 52 #include <netinet/ip.h> 53 #include <netinet/if_ether.h> 54 #endif 55 56 #include <dev/mii/mii.h> 57 #include <dev/mii/miivar.h> 58 59 #include <machine/bus.h> 60 #include <machine/intr.h> 61 #include <machine/autoconf.h> 62 63 #include <dev/sbus/sbusvar.h> 64 #include <dev/ic/hmevar.h> 65 #include <dev/ofw/openfirm.h> 66 67 struct hmesbus_softc { 68 struct hme_softc hsc_hme; /* HME device */ 69 }; 70 71 int hmematch_sbus(struct device *, void *, void *); 72 void hmeattach_sbus(struct device *, struct device *, void *); 73 74 struct cfattach hme_sbus_ca = { 75 sizeof(struct hmesbus_softc), hmematch_sbus, hmeattach_sbus 76 }; 77 78 int 79 hmematch_sbus(struct device *parent, void *vcf, void *aux) 80 { 81 struct cfdata *cf = vcf; 82 struct sbus_attach_args *sa = aux; 83 84 return (strcmp(cf->cf_driver->cd_name, sa->sa_name) == 0 || 85 strcmp("SUNW,qfe", sa->sa_name) == 0 || 86 strcmp("SUNW,hme", sa->sa_name) == 0); 87 } 88 89 void 90 hmeattach_sbus(struct device *parent, struct device *self, void *aux) 91 { 92 struct sbus_attach_args *sa = aux; 93 struct hmesbus_softc *hsc = (void *)self; 94 struct hme_softc *sc = &hsc->hsc_hme; 95 u_int32_t burst, sbusburst; 96 /* XXX the following declaration should be elsewhere */ 97 extern void myetheraddr(u_char *); 98 99 /* Pass on the bus tags */ 100 sc->sc_bustag = sa->sa_bustag; 101 sc->sc_dmatag = sa->sa_dmatag; 102 103 if (sa->sa_nintr < 1) { 104 printf(": no interrupt\n"); 105 return; 106 } 107 108 if (sa->sa_nreg < 5) { 109 printf(": only %d register sets\n", sa->sa_nreg); 110 return; 111 } 112 113 /* 114 * Map five register banks: 115 * 116 * bank 0: HME SEB registers 117 * bank 1: HME ETX registers 118 * bank 2: HME ERX registers 119 * bank 3: HME MAC registers 120 * bank 4: HME MIF registers 121 * 122 */ 123 if (sbus_bus_map(sa->sa_bustag, sa->sa_reg[0].sbr_slot, 124 (bus_addr_t)sa->sa_reg[0].sbr_offset, 125 (bus_size_t)sa->sa_reg[0].sbr_size, 0, 0, &sc->sc_seb) != 0) { 126 printf(": can't map registers\n"); 127 return; 128 } 129 if (sbus_bus_map(sa->sa_bustag, sa->sa_reg[1].sbr_slot, 130 (bus_addr_t)sa->sa_reg[1].sbr_offset, 131 (bus_size_t)sa->sa_reg[1].sbr_size, 0, 0, &sc->sc_etx) != 0) { 132 printf(": can't map registers\n"); 133 return; 134 } 135 if (sbus_bus_map(sa->sa_bustag, sa->sa_reg[2].sbr_slot, 136 (bus_addr_t)sa->sa_reg[2].sbr_offset, 137 (bus_size_t)sa->sa_reg[2].sbr_size, 0, 0, &sc->sc_erx) != 0) { 138 printf(": can't map registers\n"); 139 return; 140 } 141 if (sbus_bus_map(sa->sa_bustag, sa->sa_reg[3].sbr_slot, 142 (bus_addr_t)sa->sa_reg[3].sbr_offset, 143 (bus_size_t)sa->sa_reg[3].sbr_size, 0, 0, &sc->sc_mac) != 0) { 144 printf(": can't map registers\n"); 145 return; 146 } 147 if (sbus_bus_map(sa->sa_bustag, sa->sa_reg[4].sbr_slot, 148 (bus_addr_t)sa->sa_reg[4].sbr_offset, 149 (bus_size_t)sa->sa_reg[4].sbr_size, 0, 0, &sc->sc_mif) != 0) { 150 printf(": can't map registers\n"); 151 return; 152 } 153 154 if (OF_getprop(sa->sa_node, "local-mac-address", 155 sc->sc_arpcom.ac_enaddr, ETHER_ADDR_LEN) <= 0) 156 myetheraddr(sc->sc_arpcom.ac_enaddr); 157 158 /* 159 * Get transfer burst size from PROM and pass it on 160 * to the back-end driver. 161 */ 162 sbusburst = ((struct sbus_softc *)parent)->sc_burst; 163 if (sbusburst == 0) 164 sbusburst = SBUS_BURST_32 - 1; /* 1->16 */ 165 166 burst = getpropint(sa->sa_node, "burst-sizes", -1); 167 if (burst == -1) 168 /* take SBus burst sizes */ 169 burst = sbusburst; 170 171 /* Clamp at parent's burst sizes */ 172 burst &= sbusburst; 173 174 /* Translate into plain numerical format */ 175 if ((burst & SBUS_BURST_64)) 176 sc->sc_burst = 64; 177 else if ((burst & SBUS_BURST_32)) 178 sc->sc_burst = 32; 179 else if ((burst & SBUS_BURST_16)) 180 sc->sc_burst = 16; 181 else 182 sc->sc_burst = 0; 183 184 sc->sc_pci = 0; /* XXXXX should all be done in bus_dma. */ 185 186 /* Establish interrupt handler */ 187 bus_intr_establish(sa->sa_bustag, sa->sa_pri, IPL_NET, 0, hme_intr, 188 sc, self->dv_xname); 189 190 hme_config(sc); 191 } 192