if_hme_sbus.c revision 1.35
1 /* $NetBSD: if_hme_sbus.c,v 1.35 2025/10/15 01:36:25 thorpej 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 1.35 2025/10/15 01:36:25 thorpej 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/socket.h> 44 45 #include <net/if.h> 46 #include <net/if_dl.h> 47 #include <net/if_ether.h> 48 #include <net/if_media.h> 49 50 #include <dev/mii/mii.h> 51 #include <dev/mii/miivar.h> 52 53 #include <sys/bus.h> 54 #include <sys/intr.h> 55 #include <machine/autoconf.h> 56 57 #include <dev/sbus/sbusvar.h> 58 #include <dev/ic/hmevar.h> 59 60 struct hmesbus_softc { 61 struct hme_softc hsc_hme; /* HME device */ 62 /* sbus specific stuff here */ 63 }; 64 65 int hmematch_sbus(device_t, cfdata_t, void *); 66 void hmeattach_sbus(device_t, device_t, void *); 67 68 CFATTACH_DECL_NEW(hme_sbus, sizeof(struct hmesbus_softc), 69 hmematch_sbus, hmeattach_sbus, NULL, NULL); 70 71 int 72 hmematch_sbus(device_t parent, cfdata_t cf, void *aux) 73 { 74 struct sbus_attach_args *sa = aux; 75 76 return (strcmp(cf->cf_name, sa->sa_name) == 0 || 77 strcmp("SUNW,qfe", sa->sa_name) == 0 || 78 strcmp("SUNW,hme", sa->sa_name) == 0); 79 } 80 81 void 82 hmeattach_sbus(device_t parent, device_t self, void *aux) 83 { 84 struct sbus_attach_args *sa = aux; 85 struct hmesbus_softc *hsc = device_private(self); 86 struct hme_softc *sc = &hsc->hsc_hme; 87 struct sbus_softc *sbsc = device_private(parent); 88 uint32_t burst, sbusburst; 89 int node; 90 91 sc->sc_dev = self; 92 node = sa->sa_node; 93 94 /* Pass on the bus tags */ 95 sc->sc_bustag = sa->sa_bustag; 96 sc->sc_dmatag = sa->sa_dmatag; 97 98 aprint_normal(": Sun Happy Meal Ethernet (%s)\n", 99 sa->sa_name); 100 101 if (sa->sa_nreg < 5) { 102 aprint_error_dev(self, "only %d register sets\n", 103 sa->sa_nreg); 104 return; 105 } 106 107 if (! ether_getaddr(self, sc->sc_enaddr)) { 108 aprint_error_dev(self, "unable to get MAC address\n"); 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 /* 164 * Get transfer burst size from PROM and pass it on 165 * to the back-end driver. 166 */ 167 sbusburst = sbsc->sc_burst; 168 if (sbusburst == 0) 169 sbusburst = SBUS_BURST_32 - 1; /* 1->16 */ 170 171 burst = prom_getpropint(node, "burst-sizes", -1); 172 if (burst == -1) 173 /* take SBus burst sizes */ 174 burst = sbusburst; 175 176 /* Clamp at parent's burst sizes */ 177 burst &= sbusburst; 178 179 /* Translate into plain numerical format */ 180 sc->sc_burst = (burst & SBUS_BURST_32) ? 32 : 181 (burst & SBUS_BURST_16) ? 16 : 0; 182 183 sc->sc_pci = 0; /* XXXXX should all be done in bus_dma. */ 184 hme_config(sc); 185 186 /* Establish interrupt handler */ 187 if (sa->sa_nintr != 0) 188 (void)bus_intr_establish(sa->sa_bustag, sa->sa_pri, IPL_NET, 189 hme_intr, sc); 190 } 191
Indexes created Thu Oct 23 22:10:10 GMT 2025