2009-06-23 20:36:59 +00:00
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/*-
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2017-11-27 14:52:40 +00:00
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* SPDX-License-Identifier: BSD-2-Clause-NetBSD
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*
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2009-06-23 20:36:59 +00:00
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* Copyright (C) 2001 Eduardo Horvath.
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* Copyright (c) 2007 Marius Strobl <marius@FreeBSD.org>
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* All rights reserved.
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*
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* from: NetBSD: if_gem_pci.c,v 1.7 2001/10/18 15:09:15 thorpej Exp
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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/*
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* SBus bindings for Sun GEM Ethernet controllers
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/bus.h>
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#include <sys/kernel.h>
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#include <sys/lock.h>
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#include <sys/module.h>
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#include <sys/mutex.h>
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#include <sys/resource.h>
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#include <sys/rman.h>
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#include <sys/socket.h>
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#include <net/ethernet.h>
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#include <net/if.h>
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#include <dev/ofw/ofw_bus.h>
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#include <machine/bus.h>
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#include <machine/ofw_machdep.h>
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#include <machine/resource.h>
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#include <sparc64/sbus/sbusvar.h>
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#include <dev/gem/if_gemreg.h>
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#include <dev/gem/if_gemvar.h>
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#include "miibus_if.h"
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static device_probe_t gem_sbus_probe;
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static device_attach_t gem_sbus_attach;
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static device_detach_t gem_sbus_detach;
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static device_suspend_t gem_sbus_suspend;
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static device_resume_t gem_sbus_resume;
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static device_method_t gem_sbus_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, gem_sbus_probe),
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DEVMETHOD(device_attach, gem_sbus_attach),
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DEVMETHOD(device_detach, gem_sbus_detach),
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DEVMETHOD(device_suspend, gem_sbus_suspend),
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DEVMETHOD(device_resume, gem_sbus_resume),
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/* Use the suspend handler here, it is all that is required. */
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DEVMETHOD(device_shutdown, gem_sbus_suspend),
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/* MII interface */
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DEVMETHOD(miibus_readreg, gem_mii_readreg),
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DEVMETHOD(miibus_writereg, gem_mii_writereg),
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DEVMETHOD(miibus_statchg, gem_mii_statchg),
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2011-11-22 21:28:20 +00:00
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DEVMETHOD_END
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2009-06-23 20:36:59 +00:00
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};
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static driver_t gem_sbus_driver = {
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"gem",
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gem_sbus_methods,
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sizeof(struct gem_softc)
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};
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DRIVER_MODULE(gem, sbus, gem_sbus_driver, gem_devclass, 0, 0);
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MODULE_DEPEND(gem, sbus, 1, 1, 1);
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MODULE_DEPEND(gem, ether, 1, 1, 1);
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static int
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gem_sbus_probe(device_t dev)
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{
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if (strcmp(ofw_bus_get_name(dev), "network") == 0 &&
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ofw_bus_get_compat(dev) != NULL &&
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strcmp(ofw_bus_get_compat(dev), "SUNW,sbus-gem") == 0) {
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device_set_desc(dev, "Sun GEM Gigabit Ethernet");
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return (0);
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}
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return (ENXIO);
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}
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static struct resource_spec gem_sbus_res_spec[] = {
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{ SYS_RES_IRQ, 0, RF_SHAREABLE | RF_ACTIVE }, /* GEM_RES_INTR */
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{ SYS_RES_MEMORY, 1, RF_ACTIVE }, /* GEM_RES_BANK1 */
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{ SYS_RES_MEMORY, 0, RF_ACTIVE }, /* GEM_RES_BANK2 */
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{ -1, 0 }
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};
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static int
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gem_sbus_attach(device_t dev)
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{
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struct gem_softc *sc;
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int burst;
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uint32_t val;
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sc = device_get_softc(dev);
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sc->sc_variant = GEM_SUN_GEM;
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sc->sc_dev = dev;
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2010-09-16 09:29:48 +00:00
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/* All known SBus models use a SERDES. */
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sc->sc_flags = GEM_SERDES;
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2009-06-23 20:36:59 +00:00
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if (bus_alloc_resources(dev, gem_sbus_res_spec, sc->sc_res)) {
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device_printf(dev, "failed to allocate resources\n");
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bus_release_resources(dev, gem_sbus_res_spec, sc->sc_res);
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return (ENXIO);
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}
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GEM_LOCK_INIT(sc, device_get_nameunit(dev));
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OF_getetheraddr(dev, sc->sc_enaddr);
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burst = sbus_get_burstsz(dev);
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val = GEM_SBUS_CFG_PARITY;
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if ((burst & SBUS_BURST64_MASK) != 0) {
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val |= GEM_SBUS_CFG_64BIT;
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burst >>= SBUS_BURST64_SHIFT;
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}
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if ((burst & SBUS_BURST_64) != 0)
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val |= GEM_SBUS_CFG_BURST_64;
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else if ((burst & SBUS_BURST_32) != 0)
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val |= GEM_SBUS_CFG_BURST_32;
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else {
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device_printf(dev, "unsupported burst size\n");
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goto fail;
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}
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/* Reset the SBus interface only. */
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(void)GEM_BANK2_READ_4(sc, GEM_SBUS_BIF_RESET);
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DELAY(100);
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GEM_BANK2_WRITE_4(sc, GEM_SBUS_CONFIG, val);
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if (gem_attach(sc) != 0) {
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device_printf(dev, "could not be attached\n");
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goto fail;
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}
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if (bus_setup_intr(dev, sc->sc_res[GEM_RES_INTR], INTR_TYPE_NET |
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INTR_MPSAFE, NULL, gem_intr, sc, &sc->sc_ih) != 0) {
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device_printf(dev, "failed to set up interrupt\n");
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gem_detach(sc);
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goto fail;
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}
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return (0);
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fail:
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GEM_LOCK_DESTROY(sc);
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bus_release_resources(dev, gem_sbus_res_spec, sc->sc_res);
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return (ENXIO);
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}
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static int
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gem_sbus_detach(device_t dev)
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{
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struct gem_softc *sc;
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sc = device_get_softc(dev);
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bus_teardown_intr(dev, sc->sc_res[GEM_RES_INTR], sc->sc_ih);
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gem_detach(sc);
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GEM_LOCK_DESTROY(sc);
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bus_release_resources(dev, gem_sbus_res_spec, sc->sc_res);
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return (0);
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}
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static int
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gem_sbus_suspend(device_t dev)
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{
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gem_suspend(device_get_softc(dev));
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return (0);
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}
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static int
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gem_sbus_resume(device_t dev)
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{
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gem_resume(device_get_softc(dev));
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return (0);
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}
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