1 /* $OpenBSD: if_gem_sbus.c,v 1.10 2015/11/28 09:42:10 jmatthew Exp $ */ 2 /* $NetBSD: if_gem_sbus.c,v 1.1 2006/11/24 13:23:32 martin Exp $ */ 3 4 /*- 5 * Copyright (c) 2006 The NetBSD Foundation, Inc. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to The NetBSD Foundation 9 * by Martin Husemann. 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 for the GEM network driver 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_media.h> 46 47 #include <netinet/in.h> 48 #include <netinet/if_ether.h> 49 50 #include <dev/mii/mii.h> 51 #include <dev/mii/miivar.h> 52 53 #include <machine/bus.h> 54 #include <machine/intr.h> 55 #include <machine/autoconf.h> 56 57 #include <dev/sbus/sbusvar.h> 58 59 #include <dev/ic/gemreg.h> 60 #include <dev/ic/gemvar.h> 61 62 #include <dev/ofw/openfirm.h> 63 64 struct gem_sbus_softc { 65 struct gem_softc gsc_gem; /* GEM device */ 66 }; 67 68 int gemmatch_sbus(struct device *, void *, void *); 69 void gemattach_sbus(struct device *, struct device *, void *); 70 71 struct cfattach gem_sbus_ca = { 72 sizeof(struct gem_sbus_softc), gemmatch_sbus, gemattach_sbus 73 }; 74 75 int 76 gemmatch_sbus(struct device *parent, void *vcf, void *aux) 77 { 78 struct sbus_attach_args *sa = aux; 79 80 return (strcmp("network", sa->sa_name) == 0); 81 } 82 83 void 84 gemattach_sbus(struct device *parent, struct device *self, void *aux) 85 { 86 struct sbus_attach_args *sa = aux; 87 struct gem_sbus_softc *gsc = (void *)self; 88 struct gem_softc *sc = &gsc->gsc_gem; 89 /* XXX the following declaration should be elsewhere */ 90 extern void myetheraddr(u_char *); 91 92 /* Pass on the bus tags */ 93 sc->sc_bustag = sa->sa_bustag; 94 sc->sc_dmatag = sa->sa_dmatag; 95 96 if (sa->sa_nintr < 1) { 97 printf(": no interrupt\n"); 98 return; 99 } 100 101 if (sa->sa_nreg < 2) { 102 printf(": only %d register sets\n", sa->sa_nreg); 103 return; 104 } 105 106 sc->sc_variant = GEM_SUN_GEM; 107 108 /* 109 * Map two register banks: 110 * 111 * bank 0: status, config, reset 112 * bank 1: various gem parts 113 * 114 */ 115 if (sbus_bus_map(sa->sa_bustag, sa->sa_reg[0].sbr_slot, 116 (bus_addr_t)sa->sa_reg[0].sbr_offset, 117 (bus_size_t)sa->sa_reg[0].sbr_size, 0, 0, 118 &sc->sc_h2) != 0) { 119 printf(": can't map registers\n"); 120 return; 121 } 122 if (sbus_bus_map(sa->sa_bustag, sa->sa_reg[0].sbr_slot, 123 (bus_addr_t)sa->sa_reg[1].sbr_offset, 124 (bus_size_t)sa->sa_reg[1].sbr_size, 0, 0, 125 &sc->sc_h1) != 0) { 126 printf(": can't map registers\n"); 127 return; 128 } 129 130 if (OF_getprop(sa->sa_node, "local-mac-address", 131 sc->sc_arpcom.ac_enaddr, ETHER_ADDR_LEN) <= 0) 132 myetheraddr(sc->sc_arpcom.ac_enaddr); 133 134 /* 135 * SBUS config 136 */ 137 (void) bus_space_read_4(sa->sa_bustag, sc->sc_h2, GEM_SBUS_RESET); 138 delay(100); 139 bus_space_write_4(sa->sa_bustag, sc->sc_h2, GEM_SBUS_CONFIG, 140 GEM_SBUS_CFG_BSIZE128|GEM_SBUS_CFG_PARITY|GEM_SBUS_CFG_BMODE64); 141 142 /* Establish interrupt handler */ 143 sc->sc_ih = bus_intr_establish(sa->sa_bustag, sa->sa_pri, IPL_NET, 0, 144 gem_intr, sc, self->dv_xname); 145 146 gem_config(sc); 147 } 148