NetBSD-5.0.2/sys/arch/evbarm/lubbock/if_sm_obio.c
/* $NetBSD: if_sm_obio.c,v 1.2 2008/04/28 20:23:17 martin Exp $ */
/*
* Copyright (c) 2002, 2003 Genetec Corporation. All rights reserved.
* Written by Hiroyuki Bessho for Genetec Corporation.
*
* 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. The name of Genetec Corporation may not be used to endorse or
* promote products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY GENETEC CORPORATION ``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 GENETEC CORPORATION
* 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.
*
* attach sm driver to Lubbock on-board bus
* based on sys/dev/isa/if_sm_isa.c
*
*/
/*-
* Copyright (c) 1997 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
* NASA Ames Research Center.
*
* 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.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: if_sm_obio.c,v 1.2 2008/04/28 20:23:17 martin Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/mbuf.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <sys/errno.h>
#include <sys/syslog.h>
#include <sys/select.h>
#include <sys/device.h>
#include <net/if.h>
#include <net/if_dl.h>
#include <net/if_ether.h>
#include <net/if_media.h>
#include <machine/intr.h>
#include <machine/bus.h>
#include <dev/mii/mii.h>
#include <dev/mii/miivar.h>
#include <dev/ic/smc91cxxreg.h>
#include <dev/ic/smc91cxxvar.h>
#include <evbarm/lubbock/lubbock_var.h>
#include "opt_lubbock.h" /* LUBBOCK_SMC91C96_16BIT */
int sm_obio_match(struct device *, struct cfdata *, void *);
void sm_obio_attach(struct device *, struct device *, void *);
struct sm_obio_softc {
struct smc91cxx_softc sc_smc; /* real "smc" softc */
/* OBIO-specific goo. */
void *sc_ih; /* interrupt handler */
};
CFATTACH_DECL(sm_obio, sizeof(struct sm_obio_softc), sm_obio_match,
sm_obio_attach, NULL, NULL);
extern struct bus_space smobio8_bs_tag;
#ifndef SM_OBIO_INTR_PARANOIA
# define smintr smc91cxx_intr
#else
# define smintr smc_obio_intr
static int
smc_obio_intr(void *arg)
{
while (smc91cxx_intr(arg))
;
return 1;
}
#endif /* SM_OBIO_INTR_PARANOIA */
int
sm_obio_match(struct device *parent, struct cfdata *match, void *aux)
{
struct obio_attach_args *oba = aux;
bus_space_tag_t iot = &smobio8_bs_tag;
bus_space_handle_t ioh;
u_int16_t tmp;
int rv = 0;
extern const char *smc91cxx_idstrs[];
/* Map i/o space. */
if (bus_space_map(iot, oba->oba_addr, SMC_IOSIZE, 0, &ioh))
return (0);
/* Check that high byte of BANK_SELECT is what we expect. */
tmp = bus_space_read_2(iot, ioh, BANK_SELECT_REG_W);
if ((tmp & BSR_DETECT_MASK) != BSR_DETECT_VALUE)
goto out;
/*
* Switch to bank 0 and perform the test again.
* XXX INVASIVE!
*/
bus_space_write_1(iot, ioh, BANK_SELECT_REG_W, 0);
tmp = bus_space_read_2(iot, ioh, BANK_SELECT_REG_W);
if ((tmp & BSR_DETECT_MASK) != BSR_DETECT_VALUE)
goto out;
/*
* Check for a recognized chip id.
* XXX INVASIVE!
*/
bus_space_write_1(iot, ioh, BANK_SELECT_REG_W, 3);
tmp = bus_space_read_2(iot, ioh, REVISION_REG_W);
if (smc91cxx_idstrs[RR_ID(tmp)] == NULL)
goto out;
/*
* Assume we have an SMC91Cxx.
*/
rv = 1;
out:
bus_space_unmap(iot, ioh, SMC_IOSIZE);
if (!rv) {
printf("on-board SMC probe failed\n");
}
return (rv);
}
void
sm_obio_attach(struct device *parent, struct device *self, void *aux)
{
struct sm_obio_softc *isc = (struct sm_obio_softc *)self;
struct smc91cxx_softc *sc = &isc->sc_smc;
struct obio_attach_args *oba = aux;
bus_space_handle_t ioh;
#ifdef LUBBOCK_SMC91C96_16BIT
bus_space_tag_t iot = &pxa2x0_a4x_bs_tag;
#else
bus_space_tag_t iot = &smobio8_bs_tag;
#endif
printf("\n");
/* Map i/o space. */
if (bus_space_map(iot, oba->oba_addr, SMC_IOSIZE, 0, &ioh))
panic("sm_obio_attach: can't map i/o space");
#ifdef LUBBOCK_SMC91C96_16BIT
/* RedBoot initializes on-board SMSC91C96 in 8-bit mode.
we take it back to 16-bit by clearing ECSR.IOIs8 */
{
int tmp;
bus_space_write_1(&smobio8_bs_tag, ioh, BANK_SELECT_REG_W, 4);
tmp = bus_space_read_1(&smobio8_bs_tag, ioh, ECSR_REG_B);
bus_space_write_1(&smobio8_bs_tag, ioh,
ECSR_REG_B, tmp & ~ECSR_IOIS8);
}
obio16_write(LUBBOCK_MISCWR,
obio16_read(LUBBOCK_MISCWR) & ~MISCWR_ENETEN16 );
#else
/* Force 8bit mode */
obio16_write(LUBBOCK_MISCWR,
obio16_read(LUBBOCK_MISCWR) | MISCWR_ENETEN16);
#endif /* LUBBOCK_SMC91C96_16BIT */
sc->sc_bst = iot;
sc->sc_bsh = ioh;
/* should always be enabled */
sc->sc_flags |= SMC_FLAGS_ENABLED;
/* Perform generic intialization. */
smc91cxx_attach(sc, NULL);
/* Establish the interrupt handler. */
isc->sc_ih = obio_intr_establish((struct obio_softc *)parent,
oba->oba_intr, IPL_NET, smintr, sc);
if (isc->sc_ih == NULL)
printf("%s: couldn't establish interrupt handler\n",
sc->sc_dev.dv_xname);
}