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/* $OpenBSD: if_gem_sbus.c,v 1.11 2022/03/13 13:34:54 mpi Exp $ */
/* $NetBSD: if_gem_sbus.c,v 1.1 2006/11/24 13:23:32 martin Exp $ */
/*-
* Copyright (c) 2006 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Martin Husemann.
*
* 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.
*
* 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.
*/
/*
* SBus front-end for the GEM network driver
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/syslog.h>
#include <sys/device.h>
#include <sys/malloc.h>
#include <sys/socket.h>
#include <net/if.h>
#include <net/if_media.h>
#include <netinet/in.h>
#include <netinet/if_ether.h>
#include <dev/mii/mii.h>
#include <dev/mii/miivar.h>
#include <machine/bus.h>
#include <machine/intr.h>
#include <machine/autoconf.h>
#include <dev/sbus/sbusvar.h>
#include <dev/ic/gemreg.h>
#include <dev/ic/gemvar.h>
#include <dev/ofw/openfirm.h>
struct gem_sbus_softc {
struct gem_softc gsc_gem; /* GEM device */
};
int gemmatch_sbus(struct device *, void *, void *);
void gemattach_sbus(struct device *, struct device *, void *);
const struct cfattach gem_sbus_ca = {
sizeof(struct gem_sbus_softc), gemmatch_sbus, gemattach_sbus
};
int
gemmatch_sbus(struct device *parent, void *vcf, void *aux)
{
struct sbus_attach_args *sa = aux;
return (strcmp("network", sa->sa_name) == 0);
}
void
gemattach_sbus(struct device *parent, struct device *self, void *aux)
{
struct sbus_attach_args *sa = aux;
struct gem_sbus_softc *gsc = (void *)self;
struct gem_softc *sc = &gsc->gsc_gem;
/* XXX the following declaration should be elsewhere */
extern void myetheraddr(u_char *);
/* Pass on the bus tags */
sc->sc_bustag = sa->sa_bustag;
sc->sc_dmatag = sa->sa_dmatag;
if (sa->sa_nintr < 1) {
printf(": no interrupt\n");
return;
}
if (sa->sa_nreg < 2) {
printf(": only %d register sets\n", sa->sa_nreg);
return;
}
sc->sc_variant = GEM_SUN_GEM;
/*
* Map two register banks:
*
* bank 0: status, config, reset
* bank 1: various gem parts
*
*/
if (sbus_bus_map(sa->sa_bustag, sa->sa_reg[0].sbr_slot,
(bus_addr_t)sa->sa_reg[0].sbr_offset,
(bus_size_t)sa->sa_reg[0].sbr_size, 0, 0,
&sc->sc_h2) != 0) {
printf(": can't map registers\n");
return;
}
if (sbus_bus_map(sa->sa_bustag, sa->sa_reg[0].sbr_slot,
(bus_addr_t)sa->sa_reg[1].sbr_offset,
(bus_size_t)sa->sa_reg[1].sbr_size, 0, 0,
&sc->sc_h1) != 0) {
printf(": can't map registers\n");
return;
}
if (OF_getprop(sa->sa_node, "local-mac-address",
sc->sc_arpcom.ac_enaddr, ETHER_ADDR_LEN) <= 0)
myetheraddr(sc->sc_arpcom.ac_enaddr);
/*
* SBUS config
*/
(void) bus_space_read_4(sa->sa_bustag, sc->sc_h2, GEM_SBUS_RESET);
delay(100);
bus_space_write_4(sa->sa_bustag, sc->sc_h2, GEM_SBUS_CONFIG,
GEM_SBUS_CFG_BSIZE128|GEM_SBUS_CFG_PARITY|GEM_SBUS_CFG_BMODE64);
/* Establish interrupt handler */
sc->sc_ih = bus_intr_establish(sa->sa_bustag, sa->sa_pri, IPL_NET, 0,
gem_intr, sc, self->dv_xname);
gem_config(sc);
}
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