151 lines
4.6 KiB
C
151 lines
4.6 KiB
C
/* $NetBSD: if_gem_sbus.c,v 1.1 2006/11/24 13:23:32 martin Exp $ */
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/*-
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* Copyright (c) 2006 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 Martin Husemann.
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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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/*
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* SBus front-end for the GEM network driver
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: if_gem_sbus.c,v 1.1 2006/11/24 13:23:32 martin Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/syslog.h>
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#include <sys/device.h>
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#include <sys/malloc.h>
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#include <sys/socket.h>
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#include <net/if.h>
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#include <net/if_dl.h>
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#include <net/if_ether.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 <machine/bus.h>
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#include <machine/intr.h>
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#include <machine/autoconf.h>
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#include <dev/sbus/sbusvar.h>
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#include <dev/ic/gemreg.h>
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#include <dev/ic/gemvar.h>
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struct gem_sbus_softc {
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struct gem_softc gsc_gem; /* GEM device */
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struct sbusdev gsc_sd;
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void *gsc_ih;
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bus_space_handle_t gsc_sbus_regs_h;
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};
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int gemmatch_sbus(struct device *, struct cfdata *, void *);
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void gemattach_sbus(struct device *, struct device *, void *);
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CFATTACH_DECL(gem_sbus, sizeof(struct gem_sbus_softc),
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gemmatch_sbus, gemattach_sbus, NULL, NULL);
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int
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gemmatch_sbus(struct device *parent, struct cfdata *cf, void *aux)
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{
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struct sbus_attach_args *sa = aux;
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return (strcmp("network", sa->sa_name) == 0);
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}
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void
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gemattach_sbus(struct device *parent, struct device *self, void *aux)
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{
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struct sbus_attach_args *sa = aux;
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struct gem_sbus_softc *gsc = (void *)self;
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struct gem_softc *sc = &gsc->gsc_gem;
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uint8_t enaddr[ETHER_ADDR_LEN];
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/* Pass on the bus tags */
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sc->sc_bustag = sa->sa_bustag;
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sc->sc_dmatag = sa->sa_dmatag;
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printf(": GEM Ethernet controller (%s), version %s\n",
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sa->sa_name, prom_getpropstring(sa->sa_node, "version"));
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if (sa->sa_nreg < 2) {
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printf("%s: only %d register sets\n",
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self->dv_xname, sa->sa_nreg);
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return;
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}
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/*
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* Map two register banks:
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*
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* bank 0: status, config, reset
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* bank 1: various gem parts
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*
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*/
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if (sbus_bus_map(sa->sa_bustag,
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sa->sa_reg[0].oa_space,
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sa->sa_reg[0].oa_base,
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(bus_size_t)sa->sa_reg[0].oa_size,
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0, &sc->sc_h2) != 0) {
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printf("%s: cannot map registers\n", self->dv_xname);
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return;
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}
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if (sbus_bus_map(sa->sa_bustag,
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sa->sa_reg[1].oa_space,
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sa->sa_reg[1].oa_base,
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(bus_size_t)sa->sa_reg[1].oa_size,
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0, &sc->sc_h1) != 0) {
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printf("%s: cannot map registers\n", self->dv_xname);
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return;
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}
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sbus_establish(&gsc->gsc_sd, self);
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prom_getether(sa->sa_node, enaddr);
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/*
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* SBUS config
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*/
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bus_space_write_4(sa->sa_bustag, sc->sc_h2, GEM_SBUS_CONFIG,
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GEM_SBUS_CFG_PARITY|GEM_SBUS_CFG_BMODE64);
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gem_attach(sc, enaddr);
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/* Establish interrupt handler */
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if (sa->sa_nintr != 0)
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gsc->gsc_ih = bus_intr_establish(sa->sa_bustag, sa->sa_pri, IPL_NET,
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gem_intr, sc);
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}
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