c15fccb8f2
doesn't require parts of the Expansion ROM to be copied around, for obtaining the MAC address on !OFW platforms. - Don't unnecessarily cache bus space tag and handle nor RIDs in the softcs of the front-ends. - Don't use function calls in initializers. - Let the SBus front-end depend on sbus(4).
348 lines
9.7 KiB
C
348 lines
9.7 KiB
C
/*-
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* Copyright (c) 1999 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Paul Kranenburg.
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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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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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* from: NetBSD: if_hme_sbus.c,v 1.19 2004/03/17 17:04:58 pk 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 front-end device driver for the HME ethernet device.
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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/module.h>
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#include <sys/resource.h>
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#include <sys/socket.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 <sys/rman.h>
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#include <net/ethernet.h>
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#include <net/if.h>
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#include <net/if_arp.h>
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#include <net/if_dl.h>
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#include <net/if_media.h>
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#include <dev/mii/mii.h>
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#include <dev/mii/miivar.h>
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#include <sparc64/sbus/sbusvar.h>
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#include <dev/hme/if_hmereg.h>
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#include <dev/hme/if_hmevar.h>
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#include "miibus_if.h"
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struct hme_sbus_softc {
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struct hme_softc hsc_hme; /* HME device */
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struct resource *hsc_seb_res;
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struct resource *hsc_etx_res;
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struct resource *hsc_erx_res;
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struct resource *hsc_mac_res;
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struct resource *hsc_mif_res;
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struct resource *hsc_ires;
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void *hsc_ih;
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};
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static int hme_sbus_probe(device_t);
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static int hme_sbus_attach(device_t);
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static int hme_sbus_detach(device_t);
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static int hme_sbus_suspend(device_t);
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static int hme_sbus_resume(device_t);
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static device_method_t hme_sbus_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, hme_sbus_probe),
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DEVMETHOD(device_attach, hme_sbus_attach),
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DEVMETHOD(device_detach, hme_sbus_detach),
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DEVMETHOD(device_suspend, hme_sbus_suspend),
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DEVMETHOD(device_resume, hme_sbus_resume),
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/* Can just use the suspend method here. */
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DEVMETHOD(device_shutdown, hme_sbus_suspend),
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/* bus interface */
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DEVMETHOD(bus_print_child, bus_generic_print_child),
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DEVMETHOD(bus_driver_added, bus_generic_driver_added),
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/* MII interface */
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DEVMETHOD(miibus_readreg, hme_mii_readreg),
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DEVMETHOD(miibus_writereg, hme_mii_writereg),
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DEVMETHOD(miibus_statchg, hme_mii_statchg),
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{ 0, 0 }
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};
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static driver_t hme_sbus_driver = {
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"hme",
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hme_sbus_methods,
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sizeof(struct hme_sbus_softc)
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};
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DRIVER_MODULE(hme, sbus, hme_sbus_driver, hme_devclass, 0, 0);
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MODULE_DEPEND(hme, sbus, 1, 1, 1);
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MODULE_DEPEND(hme, ether, 1, 1, 1);
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static int
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hme_sbus_probe(device_t dev)
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{
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const char *name;
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name = ofw_bus_get_name(dev);
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if (strcmp(name, "SUNW,qfe") == 0 ||
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strcmp(name, "SUNW,hme") == 0) {
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device_set_desc(dev, "Sun HME 10/100 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 int
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hme_sbus_attach(device_t dev)
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{
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struct hme_sbus_softc *hsc;
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struct hme_softc *sc;
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u_long start, count;
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uint32_t burst;
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int i, error = 0;
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hsc = device_get_softc(dev);
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sc = &hsc->hsc_hme;
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mtx_init(&sc->sc_lock, device_get_nameunit(dev), MTX_NETWORK_LOCK,
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MTX_DEF);
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/*
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* Map five register banks:
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*
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* bank 0: HME SEB registers
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* bank 1: HME ETX registers
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* bank 2: HME ERX registers
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* bank 3: HME MAC registers
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* bank 4: HME MIF registers
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*
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*/
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i = 0;
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hsc->hsc_seb_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
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&i, RF_ACTIVE);
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if (hsc->hsc_seb_res == NULL) {
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device_printf(dev, "cannot map SEB registers\n");
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error = ENXIO;
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goto fail_mtx_res;
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}
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sc->sc_sebt = rman_get_bustag(hsc->hsc_seb_res);
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sc->sc_sebh = rman_get_bushandle(hsc->hsc_seb_res);
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i = 1;
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hsc->hsc_etx_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
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&i, RF_ACTIVE);
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if (hsc->hsc_etx_res == NULL) {
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device_printf(dev, "cannot map ETX registers\n");
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error = ENXIO;
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goto fail_seb_res;
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}
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sc->sc_etxt = rman_get_bustag(hsc->hsc_etx_res);
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sc->sc_etxh = rman_get_bushandle(hsc->hsc_etx_res);
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i = 2;
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hsc->hsc_erx_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
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&i, RF_ACTIVE);
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if (hsc->hsc_erx_res == NULL) {
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device_printf(dev, "cannot map ERX registers\n");
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error = ENXIO;
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goto fail_etx_res;
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}
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sc->sc_erxt = rman_get_bustag(hsc->hsc_erx_res);
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sc->sc_erxh = rman_get_bushandle(hsc->hsc_erx_res);
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i = 3;
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hsc->hsc_mac_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
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&i, RF_ACTIVE);
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if (hsc->hsc_mac_res == NULL) {
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device_printf(dev, "cannot map MAC registers\n");
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error = ENXIO;
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goto fail_erx_res;
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}
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sc->sc_mact = rman_get_bustag(hsc->hsc_mac_res);
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sc->sc_mach = rman_get_bushandle(hsc->hsc_mac_res);
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/*
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* At least on some HMEs, the MIF registers seem to be inside the MAC
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* range, so try to kludge around it.
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*/
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i = 4;
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hsc->hsc_mif_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
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&i, RF_ACTIVE);
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if (hsc->hsc_mif_res == NULL) {
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if (bus_get_resource(dev, SYS_RES_MEMORY, i,
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&start, &count) != 0) {
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device_printf(dev, "cannot get MIF registers\n");
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error = ENXIO;
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goto fail_mac_res;
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}
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if (start < rman_get_start(hsc->hsc_mac_res) ||
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start + count - 1 > rman_get_end(hsc->hsc_mac_res)) {
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device_printf(dev, "cannot move MIF registers to MAC "
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"bank\n");
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error = ENXIO;
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goto fail_mac_res;
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}
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sc->sc_mift = sc->sc_mact;
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bus_space_subregion(sc->sc_mact, sc->sc_mach,
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start - rman_get_start(hsc->hsc_mac_res), count,
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&sc->sc_mifh);
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} else {
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sc->sc_mift = rman_get_bustag(hsc->hsc_mif_res);
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sc->sc_mifh = rman_get_bushandle(hsc->hsc_mif_res);
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}
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i = 0;
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hsc->hsc_ires = bus_alloc_resource_any(dev, SYS_RES_IRQ,
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&i, RF_SHAREABLE | RF_ACTIVE);
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if (hsc->hsc_ires == NULL) {
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device_printf(dev, "could not allocate interrupt\n");
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error = ENXIO;
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goto fail_mif_res;
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}
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OF_getetheraddr(dev, sc->sc_enaddr);
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burst = sbus_get_burstsz(dev);
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/* Translate into plain numerical format */
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if ((burst & SBUS_BURST_64))
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sc->sc_burst = 64;
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else if ((burst & SBUS_BURST_32))
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sc->sc_burst = 32;
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else if ((burst & SBUS_BURST_16))
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sc->sc_burst = 16;
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else
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sc->sc_burst = 0;
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sc->sc_dev = dev;
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sc->sc_flags = 0;
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if ((error = hme_config(sc)) != 0) {
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device_printf(dev, "could not be configured\n");
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goto fail_ires;
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}
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if ((error = bus_setup_intr(dev, hsc->hsc_ires, INTR_TYPE_NET |
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INTR_MPSAFE, NULL, hme_intr, sc, &hsc->hsc_ih)) != 0) {
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device_printf(dev, "couldn't establish interrupt\n");
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hme_detach(sc);
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goto fail_ires;
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}
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return (0);
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fail_ires:
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bus_release_resource(dev, SYS_RES_IRQ,
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rman_get_rid(hsc->hsc_ires), hsc->hsc_ires);
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fail_mif_res:
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if (hsc->hsc_mif_res != NULL) {
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bus_release_resource(dev, SYS_RES_MEMORY,
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rman_get_rid(hsc->hsc_mif_res), hsc->hsc_mif_res);
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}
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fail_mac_res:
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bus_release_resource(dev, SYS_RES_MEMORY,
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rman_get_rid(hsc->hsc_mac_res), hsc->hsc_mac_res);
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fail_erx_res:
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bus_release_resource(dev, SYS_RES_MEMORY,
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rman_get_rid(hsc->hsc_erx_res), hsc->hsc_erx_res);
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fail_etx_res:
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bus_release_resource(dev, SYS_RES_MEMORY,
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rman_get_rid(hsc->hsc_etx_res), hsc->hsc_etx_res);
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fail_seb_res:
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bus_release_resource(dev, SYS_RES_MEMORY,
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rman_get_rid(hsc->hsc_seb_res), hsc->hsc_seb_res);
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fail_mtx_res:
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mtx_destroy(&sc->sc_lock);
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return (error);
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}
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static int
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hme_sbus_detach(device_t dev)
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{
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struct hme_sbus_softc *hsc;
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struct hme_softc *sc;
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hsc = device_get_softc(dev);
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sc = &hsc->hsc_hme;
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bus_teardown_intr(dev, hsc->hsc_ires, hsc->hsc_ih);
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hme_detach(sc);
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bus_release_resource(dev, SYS_RES_IRQ,
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rman_get_rid(hsc->hsc_ires), hsc->hsc_ires);
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if (hsc->hsc_mif_res != NULL) {
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bus_release_resource(dev, SYS_RES_MEMORY,
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rman_get_rid(hsc->hsc_mif_res), hsc->hsc_mif_res);
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}
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bus_release_resource(dev, SYS_RES_MEMORY,
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rman_get_rid(hsc->hsc_mac_res), hsc->hsc_mac_res);
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bus_release_resource(dev, SYS_RES_MEMORY,
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rman_get_rid(hsc->hsc_erx_res), hsc->hsc_erx_res);
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bus_release_resource(dev, SYS_RES_MEMORY,
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rman_get_rid(hsc->hsc_etx_res), hsc->hsc_etx_res);
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bus_release_resource(dev, SYS_RES_MEMORY,
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rman_get_rid(hsc->hsc_seb_res), hsc->hsc_seb_res);
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mtx_destroy(&sc->sc_lock);
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return (0);
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}
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static int
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hme_sbus_suspend(device_t dev)
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{
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struct hme_sbus_softc *hsc;
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hsc = device_get_softc(dev);
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hme_suspend(&hsc->hsc_hme);
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return (0);
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}
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static int
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hme_sbus_resume(device_t dev)
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{
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struct hme_sbus_softc *hsc;
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hsc = device_get_softc(dev);
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hme_resume(&hsc->hsc_hme);
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return (0);
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}
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