if_hme_sbus.c revision 1.24
1 /* $NetBSD: if_hme_sbus.c,v 1.24 2008/04/28 20:23:57 martin 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 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 /* 33 * SBus front-end device driver for the HME ethernet device. 34 */ 35 36 #include <sys/cdefs.h> 37 __KERNEL_RCSID(0, "$NetBSD: if_hme_sbus.c,v 1.24 2008/04/28 20:23:57 martin Exp $"); 38 39 #include <sys/param.h> 40 #include <sys/systm.h> 41 #include <sys/syslog.h> 42 #include <sys/device.h> 43 #include <sys/malloc.h> 44 #include <sys/socket.h> 45 46 #include <net/if.h> 47 #include <net/if_dl.h> 48 #include <net/if_ether.h> 49 #include <net/if_media.h> 50 51 #include <dev/mii/mii.h> 52 #include <dev/mii/miivar.h> 53 54 #include <sys/bus.h> 55 #include <sys/intr.h> 56 #include <machine/autoconf.h> 57 58 #include <dev/sbus/sbusvar.h> 59 #include <dev/ic/hmevar.h> 60 61 struct hmesbus_softc { 62 struct hme_softc hsc_hme; /* HME device */ 63 struct sbusdev hsc_sbus; /* SBus device */ 64 }; 65 66 int hmematch_sbus(struct device *, struct cfdata *, void *); 67 void hmeattach_sbus(struct device *, struct device *, void *); 68 69 CFATTACH_DECL(hme_sbus, sizeof(struct hmesbus_softc), 70 hmematch_sbus, hmeattach_sbus, NULL, NULL); 71 72 int 73 hmematch_sbus(parent, cf, aux) 74 struct device *parent; 75 struct cfdata *cf; 76 void *aux; 77 { 78 struct sbus_attach_args *sa = aux; 79 80 return (strcmp(cf->cf_name, sa->sa_name) == 0 || 81 strcmp("SUNW,qfe", sa->sa_name) == 0 || 82 strcmp("SUNW,hme", sa->sa_name) == 0); 83 } 84 85 void 86 hmeattach_sbus(parent, self, aux) 87 struct device *parent, *self; 88 void *aux; 89 { 90 struct sbus_attach_args *sa = aux; 91 struct hmesbus_softc *hsc = (void *)self; 92 struct hme_softc *sc = &hsc->hsc_hme; 93 struct sbusdev *sd = &hsc->hsc_sbus; 94 u_int32_t burst, sbusburst; 95 int node; 96 97 node = sa->sa_node; 98 99 /* Pass on the bus tags */ 100 sc->sc_bustag = sa->sa_bustag; 101 sc->sc_dmatag = sa->sa_dmatag; 102 103 printf(": Sun Happy Meal Ethernet (%s)\n", 104 sa->sa_name); 105 106 if (sa->sa_nreg < 5) { 107 printf("%s: only %d register sets\n", 108 device_xname(self), sa->sa_nreg); 109 return; 110 } 111 112 /* 113 * Map five register banks: 114 * 115 * bank 0: HME SEB registers 116 * bank 1: HME ETX registers 117 * bank 2: HME ERX registers 118 * bank 3: HME MAC registers 119 * bank 4: HME MIF registers 120 * 121 */ 122 if (sbus_bus_map(sa->sa_bustag, 123 sa->sa_reg[0].oa_space, 124 sa->sa_reg[0].oa_base, 125 (bus_size_t)sa->sa_reg[0].oa_size, 126 0, &sc->sc_seb) != 0) { 127 aprint_error_dev(self, "cannot map SEB registers\n"); 128 return; 129 } 130 if (sbus_bus_map(sa->sa_bustag, 131 sa->sa_reg[1].oa_space, 132 sa->sa_reg[1].oa_base, 133 (bus_size_t)sa->sa_reg[1].oa_size, 134 0, &sc->sc_etx) != 0) { 135 aprint_error_dev(self, "cannot map ETX registers\n"); 136 return; 137 } 138 if (sbus_bus_map(sa->sa_bustag, 139 sa->sa_reg[2].oa_space, 140 sa->sa_reg[2].oa_base, 141 (bus_size_t)sa->sa_reg[2].oa_size, 142 0, &sc->sc_erx) != 0) { 143 aprint_error_dev(self, "cannot map ERX registers\n"); 144 return; 145 } 146 if (sbus_bus_map(sa->sa_bustag, 147 sa->sa_reg[3].oa_space, 148 sa->sa_reg[3].oa_base, 149 (bus_size_t)sa->sa_reg[3].oa_size, 150 0, &sc->sc_mac) != 0) { 151 aprint_error_dev(self, "cannot map MAC registers\n"); 152 return; 153 } 154 if (sbus_bus_map(sa->sa_bustag, 155 sa->sa_reg[4].oa_space, 156 sa->sa_reg[4].oa_base, 157 (bus_size_t)sa->sa_reg[4].oa_size, 158 0, &sc->sc_mif) != 0) { 159 aprint_error_dev(self, "cannot map MIF registers\n"); 160 return; 161 } 162 163 sd->sd_reset = (void *)hme_reset; 164 sbus_establish(sd, self); 165 166 prom_getether(node, sc->sc_enaddr); 167 168 /* 169 * Get transfer burst size from PROM and pass it on 170 * to the back-end driver. 171 */ 172 sbusburst = ((struct sbus_softc *)parent)->sc_burst; 173 if (sbusburst == 0) 174 sbusburst = SBUS_BURST_32 - 1; /* 1->16 */ 175 176 burst = prom_getpropint(node, "burst-sizes", -1); 177 if (burst == -1) 178 /* take SBus burst sizes */ 179 burst = sbusburst; 180 181 /* Clamp at parent's burst sizes */ 182 burst &= sbusburst; 183 184 /* Translate into plain numerical format */ 185 sc->sc_burst = (burst & SBUS_BURST_32) ? 32 : 186 (burst & SBUS_BURST_16) ? 16 : 0; 187 188 sc->sc_pci = 0; /* XXXXX should all be done in bus_dma. */ 189 hme_config(sc); 190 191 /* Establish interrupt handler */ 192 if (sa->sa_nintr != 0) 193 (void)bus_intr_establish(sa->sa_bustag, sa->sa_pri, IPL_NET, 194 hme_intr, sc); 195 } 196
Indexes created Mon Oct 20 03:09:53 GMT 2025