diff options
Diffstat (limited to 'sys/dev/hme/if_hme_sbus.c')
| -rw-r--r-- | sys/dev/hme/if_hme_sbus.c | 276 |
1 files changed, 276 insertions, 0 deletions
diff --git a/sys/dev/hme/if_hme_sbus.c b/sys/dev/hme/if_hme_sbus.c new file mode 100644 index 0000000..1e6d82c --- /dev/null +++ b/sys/dev/hme/if_hme_sbus.c @@ -0,0 +1,276 @@ +/*- + * Copyright (c) 1999 The NetBSD Foundation, Inc. + * All rights reserved. + * + * This code is derived from software contributed to The NetBSD Foundation + * by Paul Kranenburg. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the NetBSD + * Foundation, Inc. and its contributors. + * 4. Neither the name of The NetBSD Foundation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS + * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED + * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS + * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + * from: NetBSD: if_hme_sbus.c,v 1.9 2001/11/13 06:58:17 lukem Exp + * + * $FreeBSD$ + */ + +/* + * SBus front-end device driver for the HME ethernet device. + */ + +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/bus.h> +#include <sys/kernel.h> +#include <sys/resource.h> +#include <sys/socket.h> + +#include <machine/bus.h> +#include <machine/ofw_machdep.h> +#include <machine/resource.h> + +#include <sys/rman.h> + +#include <ofw/openfirm.h> + +#include <net/ethernet.h> +#include <net/if.h> +#include <net/if_arp.h> +#include <net/if_dl.h> +#include <net/if_media.h> + +#include <mii/mii.h> +#include <mii/miivar.h> + +#include <sparc64/sbus/sbusvar.h> + +#include <hme/if_hmereg.h> +#include <hme/if_hmevar.h> + +#include "miibus_if.h" + +struct hme_sbus_softc { + struct hme_softc hsc_hme; /* HME device */ + struct resource *hsc_seb_res; + int hsc_seb_rid; + struct resource *hsc_etx_res; + int hsc_etx_rid; + struct resource *hsc_erx_res; + int hsc_erx_rid; + struct resource *hsc_mac_res; + int hsc_mac_rid; + struct resource *hsc_mif_res; + int hsc_mif_rid; + struct resource *hsc_ires; + int hsc_irid; + void *hsc_ih; +}; + +static int hme_sbus_probe(device_t); +static int hme_sbus_attach(device_t); + +static device_method_t hme_sbus_methods[] = { + /* Device interface */ + DEVMETHOD(device_probe, hme_sbus_probe), + DEVMETHOD(device_attach, hme_sbus_attach), + + /* bus interface */ + DEVMETHOD(bus_print_child, bus_generic_print_child), + DEVMETHOD(bus_driver_added, bus_generic_driver_added), + + /* MII interface */ + DEVMETHOD(miibus_readreg, hme_mii_readreg), + DEVMETHOD(miibus_writereg, hme_mii_writereg), + DEVMETHOD(miibus_statchg, hme_mii_statchg), + + { 0, 0 } +}; + +static driver_t hme_sbus_driver = { + "hme", + hme_sbus_methods, + sizeof(struct hme_sbus_softc) +}; + +DRIVER_MODULE(if_hme, sbus, hme_sbus_driver, hme_devclass, 0, 0); + +static int +hme_sbus_probe(device_t dev) +{ + char *name; + + name = sbus_get_name(dev); + if (strcmp(name, "SUNW,qfe") == 0 || + strcmp(name, "SUNW,hme") == 0) { + device_set_desc(dev, "Sun HME 10/100 Ethernet"); + return (0); + } + return (ENXIO); +} + +static int +hme_sbus_attach(device_t dev) +{ + struct hme_sbus_softc *hsc = device_get_softc(dev); + struct hme_softc *sc = &hsc->hsc_hme; + u_int32_t burst; + u_long start, count; + int error; + + /* + * Map five register banks: + * + * bank 0: HME SEB registers + * bank 1: HME ETX registers + * bank 2: HME ERX registers + * bank 3: HME MAC registers + * bank 4: HME MIF registers + * + */ + sc->sc_sebo = sc->sc_etxo = sc->sc_erxo = sc->sc_maco = sc->sc_mifo = 0; + hsc->hsc_seb_rid = 0; + hsc->hsc_seb_res = bus_alloc_resource(dev, SYS_RES_MEMORY, + &hsc->hsc_seb_rid, 0, ~0, 1, RF_ACTIVE); + if (hsc->hsc_seb_res == NULL) { + device_printf(dev, "cannot map SEB registers\n"); + return (ENXIO); + } + sc->sc_sebt = rman_get_bustag(hsc->hsc_seb_res); + sc->sc_sebh = rman_get_bushandle(hsc->hsc_seb_res); + + hsc->hsc_etx_rid = 1; + hsc->hsc_etx_res = bus_alloc_resource(dev, SYS_RES_MEMORY, + &hsc->hsc_etx_rid, 0, ~0, 1, RF_ACTIVE); + if (hsc->hsc_etx_res == NULL) { + device_printf(dev, "cannot map ETX registers\n"); + goto fail_seb_res; + } + sc->sc_etxt = rman_get_bustag(hsc->hsc_etx_res); + sc->sc_etxh = rman_get_bushandle(hsc->hsc_etx_res); + + hsc->hsc_erx_rid = 2; + hsc->hsc_erx_res = bus_alloc_resource(dev, SYS_RES_MEMORY, + &hsc->hsc_erx_rid, 0, ~0, 1, RF_ACTIVE); + if (hsc->hsc_erx_res == NULL) { + device_printf(dev, "cannot map ERX registers\n"); + goto fail_etx_res; + } + sc->sc_erxt = rman_get_bustag(hsc->hsc_erx_res); + sc->sc_erxh = rman_get_bushandle(hsc->hsc_erx_res); + + hsc->hsc_mac_rid = 3; + hsc->hsc_mac_res = bus_alloc_resource(dev, SYS_RES_MEMORY, + &hsc->hsc_mac_rid, 0, ~0, 1, RF_ACTIVE); + if (hsc->hsc_mac_res == NULL) { + device_printf(dev, "cannot map MAC registers\n"); + goto fail_erx_res; + } + sc->sc_mact = rman_get_bustag(hsc->hsc_mac_res); + sc->sc_mach = rman_get_bushandle(hsc->hsc_mac_res); + + /* + * At least on some HMEs, the MIF registers seem to be inside the MAC + * range, so map try to kluge around it. + */ + hsc->hsc_mif_rid = 4; + hsc->hsc_mif_res = bus_alloc_resource(dev, SYS_RES_MEMORY, + &hsc->hsc_mif_rid, 0, ~0, 1, RF_ACTIVE); + if (hsc->hsc_mif_res == NULL) { + if (bus_get_resource(dev, SYS_RES_MEMORY, hsc->hsc_mif_rid, + &start, &count) != 0) { + device_printf(dev, "cannot get MIF registers\n"); + goto fail_mac_res; + } + if (start < rman_get_start(hsc->hsc_mac_res) || + start + count - 1 > rman_get_end(hsc->hsc_mac_res)) { + device_printf(dev, "cannot move MIF registers to MAC " + "bank\n"); + goto fail_mac_res; + } + sc->sc_mift = sc->sc_mact; + sc->sc_mifh = sc->sc_mach; + sc->sc_mifo = sc->sc_maco + start - + rman_get_start(hsc->hsc_mac_res); + } else { + sc->sc_mift = rman_get_bustag(hsc->hsc_mif_res); + sc->sc_mifh = rman_get_bushandle(hsc->hsc_mif_res); + } + + hsc->hsc_irid = 0; + hsc->hsc_ires = bus_alloc_resource(dev, SYS_RES_IRQ, &hsc->hsc_irid, 0, + ~0, 1, RF_ACTIVE); + if (hsc->hsc_ires == NULL) { + device_printf(dev, "could not allocate interrupt\n"); + error = ENXIO; + goto fail_mif_res; + } + + + OF_getetheraddr(dev, sc->sc_arpcom.ac_enaddr); + + burst = sbus_get_burstsz(dev); + /* Translate into plain numerical format */ + sc->sc_burst = (burst & SBUS_BURST_32) ? 32 : + (burst & SBUS_BURST_16) ? 16 : 0; + + sc->sc_pci = 0; /* XXX: should all be done in bus_dma. */ + sc->sc_dev = dev; + + if ((error = hme_config(sc)) != 0) { + device_printf(dev, "could not be configured\n"); + goto fail_ires; + } + + + if ((error = bus_setup_intr(dev, hsc->hsc_ires, INTR_TYPE_NET, hme_intr, + sc, &hsc->hsc_ih)) != 0) { + device_printf(dev, "couldn't establish interrupt\n"); + goto fail_ires; + } + return (0); + +fail_ires: + bus_release_resource(dev, SYS_RES_IRQ, hsc->hsc_irid, hsc->hsc_ires); +fail_mif_res: + if (hsc->hsc_mif_res != NULL) { + bus_release_resource(dev, SYS_RES_MEMORY, hsc->hsc_mif_rid, + hsc->hsc_mif_res); + } +fail_mac_res: + bus_release_resource(dev, SYS_RES_MEMORY, hsc->hsc_mac_rid, + hsc->hsc_mac_res); +fail_erx_res: + bus_release_resource(dev, SYS_RES_MEMORY, hsc->hsc_erx_rid, + hsc->hsc_erx_res); +fail_etx_res: + bus_release_resource(dev, SYS_RES_MEMORY, hsc->hsc_etx_rid, + hsc->hsc_etx_res); +fail_seb_res: + bus_release_resource(dev, SYS_RES_MEMORY, hsc->hsc_seb_rid, + hsc->hsc_seb_res); + return (ENXIO); +} |
