1183234Ssimon/* $NetBSD: if_gem_sbus.c,v 1.12 2009/08/04 09:26:26 martin Exp $ */ 2280297Sjkim 3280297Sjkim/*- 4183234Ssimon * Copyright (c) 2006 The NetBSD Foundation, Inc. 5183234Ssimon * All rights reserved. 6183234Ssimon * 7183234Ssimon * This code is derived from software contributed to The NetBSD Foundation 8183234Ssimon * by Martin Husemann. 9183234Ssimon * 10183234Ssimon * Redistribution and use in source and binary forms, with or without 11183234Ssimon * modification, are permitted provided that the following conditions 12183234Ssimon * are met: 13183234Ssimon * 1. Redistributions of source code must retain the above copyright 14280297Sjkim * notice, this list of conditions and the following disclaimer. 15183234Ssimon * 2. Redistributions in binary form must reproduce the above copyright 16183234Ssimon * notice, this list of conditions and the following disclaimer in the 17183234Ssimon * documentation and/or other materials provided with the distribution. 18183234Ssimon * 19183234Ssimon * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20183234Ssimon * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21183234Ssimon * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22183234Ssimon * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23183234Ssimon * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24183234Ssimon * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25183234Ssimon * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26183234Ssimon * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27183234Ssimon * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28183234Ssimon * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29183234Ssimon * POSSIBILITY OF SUCH DAMAGE. 30183234Ssimon */ 31183234Ssimon 32183234Ssimon/* 33183234Ssimon * SBus front-end for the GEM network driver 34183234Ssimon */ 35183234Ssimon 36183234Ssimon#include <sys/cdefs.h> 37183234Ssimon__KERNEL_RCSID(0, "$NetBSD: if_gem_sbus.c,v 1.12 2009/08/04 09:26:26 martin Exp $"); 38183234Ssimon 39183234Ssimon#include <sys/param.h> 40183234Ssimon#include <sys/systm.h> 41183234Ssimon#include <sys/syslog.h> 42183234Ssimon#include <sys/device.h> 43183234Ssimon#include <sys/malloc.h> 44183234Ssimon#include <sys/socket.h> 45183234Ssimon 46183234Ssimon#include <net/if.h> 47183234Ssimon#include <net/if_dl.h> 48183234Ssimon#include <net/if_ether.h> 49183234Ssimon#include <net/if_media.h> 50183234Ssimon 51183234Ssimon#include <dev/mii/mii.h> 52183234Ssimon#include <dev/mii/miivar.h> 53183234Ssimon 54183234Ssimon#include <sys/bus.h> 55183234Ssimon#include <sys/intr.h> 56183234Ssimon#include <machine/autoconf.h> 57183234Ssimon 58183234Ssimon#include <dev/sbus/sbusvar.h> 59183234Ssimon 60183234Ssimon#include <dev/ic/gemreg.h> 61183234Ssimon#include <dev/ic/gemvar.h> 62183234Ssimon 63238405Sjkimstruct gem_sbus_softc { 64183234Ssimon struct gem_softc gsc_gem; /* GEM device */ 65280297Sjkim void *gsc_ih; 66280297Sjkim bus_space_handle_t gsc_sbus_regs_h; 67280297Sjkim}; 68183234Ssimon 69183234Ssimonint gemmatch_sbus(device_t, cfdata_t, void *); 70280297Sjkimvoid gemattach_sbus(device_t, device_t, void *); 71280297Sjkim 72280297SjkimCFATTACH_DECL3_NEW(gem_sbus, sizeof(struct gem_sbus_softc), 73183234Ssimon gemmatch_sbus, gemattach_sbus, NULL, NULL, NULL, NULL, 0); 74183234Ssimon 75183234Ssimonint 76280297Sjkimgemmatch_sbus(device_t parent, cfdata_t cf, void *aux) 77280297Sjkim{ 78183234Ssimon struct sbus_attach_args *sa = aux; 79183234Ssimon 80183234Ssimon return (strcmp("network", sa->sa_name) == 0); 81183234Ssimon} 82183234Ssimon 83183234Ssimonvoid 84280297Sjkimgemattach_sbus(device_t parent, device_t self, void *aux) 85280297Sjkim{ 86280297Sjkim struct sbus_attach_args *sa = aux; 87183234Ssimon struct gem_sbus_softc *gsc = device_private(self); 88183234Ssimon struct gem_softc *sc = &gsc->gsc_gem; 89183234Ssimon uint8_t enaddr[ETHER_ADDR_LEN]; 90183234Ssimon 91183234Ssimon sc->sc_dev = self; 92238405Sjkim 93280297Sjkim /* Pass on the bus tags */ 94280297Sjkim sc->sc_bustag = sa->sa_bustag; 95280297Sjkim sc->sc_dmatag = sa->sa_dmatag; 96280297Sjkim 97183234Ssimon if (sa->sa_nreg < 2) { 98183234Ssimon printf("%s: only %d register sets\n", 99183234Ssimon device_xname(self), sa->sa_nreg); 100280297Sjkim return; 101280297Sjkim } 102280297Sjkim 103280297Sjkim /* 104183234Ssimon * Map two register banks: 105183234Ssimon * 106183234Ssimon * bank 0: status, config, reset 107183234Ssimon * bank 1: various gem parts 108183234Ssimon * 109183234Ssimon */ 110183234Ssimon if (sbus_bus_map(sa->sa_bustag, 111183234Ssimon sa->sa_reg[0].oa_space, 112183234Ssimon sa->sa_reg[0].oa_base, 113280297Sjkim (bus_size_t)sa->sa_reg[0].oa_size, 114183234Ssimon 0, &sc->sc_h2) != 0) { 115238405Sjkim aprint_error_dev(self, "cannot map registers\n"); 116238405Sjkim return; 117238405Sjkim } 118280297Sjkim if (sbus_bus_map(sa->sa_bustag, 119280297Sjkim sa->sa_reg[1].oa_space, 120280297Sjkim sa->sa_reg[1].oa_base, 121280297Sjkim (bus_size_t)sa->sa_reg[1].oa_size, 122280297Sjkim 0, &sc->sc_h1) != 0) { 123280297Sjkim aprint_error_dev(self, "cannot map registers\n"); 124280297Sjkim return; 125280297Sjkim } 126280297Sjkim prom_getether(sa->sa_node, enaddr); 127280297Sjkim 128280297Sjkim if (!strcmp("serdes", prom_getpropstring(sa->sa_node, "shared-pins"))) 129280297Sjkim sc->sc_flags |= GEM_SERDES; 130280297Sjkim sc->sc_variant = GEM_SUN_GEM; 131280297Sjkim sc->sc_flags &= ~GEM_PCI; 132280297Sjkim 133280297Sjkim /* 134280297Sjkim * SBUS config 135280297Sjkim */ 136280297Sjkim (void) bus_space_read_4(sa->sa_bustag, sc->sc_h2, GEM_SBUS_RESET); 137280297Sjkim delay(100); 138280297Sjkim bus_space_write_4(sa->sa_bustag, sc->sc_h2, GEM_SBUS_CONFIG, 139280297Sjkim GEM_SBUS_CFG_BSIZE128|GEM_SBUS_CFG_PARITY|GEM_SBUS_CFG_BMODE64); 140280297Sjkim sc->sc_chiprev = bus_space_read_4(sa->sa_bustag, sc->sc_h2, 141280297Sjkim GEM_SBUS_REVISION); 142280297Sjkim 143280297Sjkim printf(": GEM Ethernet controller (%s), version %s (rev 0x%02x)\n", 144280297Sjkim sa->sa_name, prom_getpropstring(sa->sa_node, "version"), 145238405Sjkim sc->sc_chiprev); 146183234Ssimon 147183234Ssimon gem_attach(sc, enaddr); 148183234Ssimon 149280297Sjkim /* Establish interrupt handler */ 150280297Sjkim if (sa->sa_nintr != 0) 151280297Sjkim gsc->gsc_ih = bus_intr_establish(sa->sa_bustag, sa->sa_pri, IPL_NET, 152280297Sjkim gem_intr, sc); 153280297Sjkim} 154280297Sjkim