11590Srgrimes/*- 21590Srgrimes * Copyright (C) 2001 Eduardo Horvath. 31590Srgrimes * Copyright (c) 2007 Marius Strobl <marius@FreeBSD.org> 41590Srgrimes * All rights reserved. 51590Srgrimes * 61590Srgrimes * 71590Srgrimes * Redistribution and use in source and binary forms, with or without 81590Srgrimes * modification, are permitted provided that the following conditions 91590Srgrimes * are met: 101590Srgrimes * 1. Redistributions of source code must retain the above copyright 111590Srgrimes * notice, this list of conditions and the following disclaimer. 121590Srgrimes * 2. Redistributions in binary form must reproduce the above copyright 131590Srgrimes * notice, this list of conditions and the following disclaimer in the 141590Srgrimes * documentation and/or other materials provided with the distribution. 151590Srgrimes * 161590Srgrimes * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND 171590Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 181590Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 191590Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE 201590Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 211590Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 221590Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 231590Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 241590Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 251590Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 261590Srgrimes * SUCH DAMAGE. 271590Srgrimes * 281590Srgrimes * from: NetBSD: if_gem_pci.c,v 1.7 2001/10/18 15:09:15 thorpej Exp 291590Srgrimes */ 301590Srgrimes 311590Srgrimes#include <sys/cdefs.h> 321590Srgrimes__FBSDID("$FreeBSD: releng/11.0/sys/dev/gem/if_gem_sbus.c 227843 2011-11-22 21:28:20Z marius $"); 331590Srgrimes 341590Srgrimes/* 351590Srgrimes * SBus bindings for Sun GEM Ethernet controllers 361590Srgrimes */ 3727419Scharnier 381590Srgrimes#include <sys/param.h> 391590Srgrimes#include <sys/systm.h> 401590Srgrimes#include <sys/bus.h> 411590Srgrimes#include <sys/kernel.h> 421590Srgrimes#include <sys/lock.h> 431590Srgrimes#include <sys/module.h> 44116390Scharnier#include <sys/mutex.h> 451590Srgrimes#include <sys/resource.h> 461590Srgrimes#include <sys/rman.h> 47116390Scharnier#include <sys/socket.h> 4827419Scharnier 49116390Scharnier#include <net/ethernet.h> 5099112Sobrien#include <net/if.h> 5199112Sobrien 521590Srgrimes#include <dev/ofw/ofw_bus.h> 531590Srgrimes 5427419Scharnier#include <machine/bus.h> 551590Srgrimes#include <machine/ofw_machdep.h> 561590Srgrimes#include <machine/resource.h> 571590Srgrimes 581590Srgrimes#include <sparc64/sbus/sbusvar.h> 591590Srgrimes 6085632Sschweikh#include <dev/gem/if_gemreg.h> 611590Srgrimes#include <dev/gem/if_gemvar.h> 621590Srgrimes 6385632Sschweikh#include "miibus_if.h" 641590Srgrimes 6585632Sschweikhstatic device_probe_t gem_sbus_probe; 6685632Sschweikhstatic device_attach_t gem_sbus_attach; 6793440Sdwmalonestatic device_detach_t gem_sbus_detach; 681590Srgrimesstatic device_suspend_t gem_sbus_suspend; 6993440Sdwmalonestatic device_resume_t gem_sbus_resume; 701590Srgrimes 711590Srgrimesstatic device_method_t gem_sbus_methods[] = { 721590Srgrimes /* Device interface */ 73116390Scharnier DEVMETHOD(device_probe, gem_sbus_probe), 74116390Scharnier DEVMETHOD(device_attach, gem_sbus_attach), 7585632Sschweikh DEVMETHOD(device_detach, gem_sbus_detach), 7685632Sschweikh DEVMETHOD(device_suspend, gem_sbus_suspend), 771590Srgrimes DEVMETHOD(device_resume, gem_sbus_resume), 781590Srgrimes /* Use the suspend handler here, it is all that is required. */ 791590Srgrimes DEVMETHOD(device_shutdown, gem_sbus_suspend), 801590Srgrimes 811590Srgrimes /* MII interface */ 821590Srgrimes DEVMETHOD(miibus_readreg, gem_mii_readreg), 831590Srgrimes DEVMETHOD(miibus_writereg, gem_mii_writereg), 8485632Sschweikh DEVMETHOD(miibus_statchg, gem_mii_statchg), 851590Srgrimes 8698771Sjmallett DEVMETHOD_END 871590Srgrimes}; 881590Srgrimes 89105244Scharnierstatic driver_t gem_sbus_driver = { 901590Srgrimes "gem", 911590Srgrimes gem_sbus_methods, 921590Srgrimes sizeof(struct gem_softc) 931590Srgrimes}; 9493440Sdwmalone 951590SrgrimesDRIVER_MODULE(gem, sbus, gem_sbus_driver, gem_devclass, 0, 0); 961590SrgrimesMODULE_DEPEND(gem, sbus, 1, 1, 1); 971590SrgrimesMODULE_DEPEND(gem, ether, 1, 1, 1); 981590Srgrimes 991590Srgrimesstatic int 1001590Srgrimesgem_sbus_probe(device_t dev) 1011590Srgrimes{ 1021590Srgrimes 1031590Srgrimes if (strcmp(ofw_bus_get_name(dev), "network") == 0 && 104116390Scharnier ofw_bus_get_compat(dev) != NULL && 1051590Srgrimes strcmp(ofw_bus_get_compat(dev), "SUNW,sbus-gem") == 0) { 1061590Srgrimes device_set_desc(dev, "Sun GEM Gigabit Ethernet"); 1071590Srgrimes return (0); 1081590Srgrimes } 1091590Srgrimes 1101590Srgrimes return (ENXIO); 111116390Scharnier} 112116390Scharnier 1131590Srgrimesstatic struct resource_spec gem_sbus_res_spec[] = { 114116390Scharnier { SYS_RES_IRQ, 0, RF_SHAREABLE | RF_ACTIVE }, /* GEM_RES_INTR */ 115116390Scharnier { SYS_RES_MEMORY, 1, RF_ACTIVE }, /* GEM_RES_BANK1 */ 1161590Srgrimes { SYS_RES_MEMORY, 0, RF_ACTIVE }, /* GEM_RES_BANK2 */ 117116390Scharnier { -1, 0 } 118116390Scharnier}; 1191590Srgrimes 120116390Scharnierstatic int 121116390Scharniergem_sbus_attach(device_t dev) 1221590Srgrimes{ 1231590Srgrimes struct gem_softc *sc; 1241590Srgrimes int burst; 1251590Srgrimes uint32_t val; 1261590Srgrimes 1271590Srgrimes sc = device_get_softc(dev); 1281590Srgrimes sc->sc_variant = GEM_SUN_GEM; 1291590Srgrimes sc->sc_dev = dev; 1301590Srgrimes /* All known SBus models use a SERDES. */ 1311590Srgrimes sc->sc_flags = GEM_SERDES; 1321590Srgrimes 1331590Srgrimes if (bus_alloc_resources(dev, gem_sbus_res_spec, sc->sc_res)) { 1341590Srgrimes device_printf(dev, "failed to allocate resources\n"); 1351590Srgrimes bus_release_resources(dev, gem_sbus_res_spec, sc->sc_res); 136116390Scharnier return (ENXIO); 137116390Scharnier } 1381590Srgrimes 1391590Srgrimes GEM_LOCK_INIT(sc, device_get_nameunit(dev)); 1401590Srgrimes 1411590Srgrimes OF_getetheraddr(dev, sc->sc_enaddr); 1421590Srgrimes 1431590Srgrimes burst = sbus_get_burstsz(dev); 1441590Srgrimes val = GEM_SBUS_CFG_PARITY; 1451590Srgrimes if ((burst & SBUS_BURST64_MASK) != 0) { 1461590Srgrimes val |= GEM_SBUS_CFG_64BIT; 1471590Srgrimes burst >>= SBUS_BURST64_SHIFT; 1481590Srgrimes } 1491590Srgrimes if ((burst & SBUS_BURST_64) != 0) 1501590Srgrimes val |= GEM_SBUS_CFG_BURST_64; 1511590Srgrimes else if ((burst & SBUS_BURST_32) != 0) 1521590Srgrimes val |= GEM_SBUS_CFG_BURST_32; 1531590Srgrimes else { 1541590Srgrimes device_printf(dev, "unsupported burst size\n"); 1551590Srgrimes goto fail; 1561590Srgrimes } 1571590Srgrimes /* Reset the SBus interface only. */ 1581590Srgrimes (void)GEM_BANK2_READ_4(sc, GEM_SBUS_BIF_RESET); 1591590Srgrimes DELAY(100); 1601590Srgrimes GEM_BANK2_WRITE_4(sc, GEM_SBUS_CONFIG, val); 1611590Srgrimes 1621590Srgrimes if (gem_attach(sc) != 0) { 1631590Srgrimes device_printf(dev, "could not be attached\n"); 1641590Srgrimes goto fail; 1651590Srgrimes } 1661590Srgrimes 1671590Srgrimes if (bus_setup_intr(dev, sc->sc_res[GEM_RES_INTR], INTR_TYPE_NET | 1681590Srgrimes INTR_MPSAFE, NULL, gem_intr, sc, &sc->sc_ih) != 0) { 1691590Srgrimes device_printf(dev, "failed to set up interrupt\n"); 1701590Srgrimes gem_detach(sc); 1711590Srgrimes goto fail; 1721590Srgrimes } 1731590Srgrimes return (0); 1741590Srgrimes 1751590Srgrimes fail: 1761590Srgrimes GEM_LOCK_DESTROY(sc); 1771590Srgrimes bus_release_resources(dev, gem_sbus_res_spec, sc->sc_res); 17869795Sobrien return (ENXIO); 1791590Srgrimes} 1801590Srgrimes 1811590Srgrimesstatic int 1821590Srgrimesgem_sbus_detach(device_t dev) 1831590Srgrimes{ 1841590Srgrimes struct gem_softc *sc; 1851590Srgrimes 1861590Srgrimes sc = device_get_softc(dev); 1871590Srgrimes bus_teardown_intr(dev, sc->sc_res[GEM_RES_INTR], sc->sc_ih); 1881590Srgrimes gem_detach(sc); 1891590Srgrimes GEM_LOCK_DESTROY(sc); 1901590Srgrimes bus_release_resources(dev, gem_sbus_res_spec, sc->sc_res); 1911590Srgrimes return (0); 1921590Srgrimes} 1931590Srgrimes 1941590Srgrimesstatic int 1951590Srgrimesgem_sbus_suspend(device_t dev) 1961590Srgrimes{ 1971590Srgrimes 1981590Srgrimes gem_suspend(device_get_softc(dev)); 1991590Srgrimes return (0); 2001590Srgrimes} 2011590Srgrimes 2021590Srgrimesstatic int 20362894Skrisgem_sbus_resume(device_t dev) 2041590Srgrimes{ 2051590Srgrimes 2061590Srgrimes gem_resume(device_get_softc(dev)); 2071590Srgrimes return (0); 2081590Srgrimes} 2091590Srgrimes