NetBSD-5.0.2/sys/arch/evbarm/gumstix/if_sm_gxio.c
/* $NetBSD: if_sm_gxio.c,v 1.6 2008/05/11 08:23:17 kiyohara Exp $ */
/*
* Copyright (C) 2005, 2006 WIDE Project and SOUM Corporation.
* All rights reserved.
*
* Written by Takashi Kiyohara and Susumu Miki for WIDE Project and SOUM
* 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. Neither the name of the project nor the name of SOUM Corporation
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE PROJECT and SOUM 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 THE PROJECT AND SOUM 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.
*/
/*-
* 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_gxio.c,v 1.6 2008/05/11 08:23:17 kiyohara Exp $");
#include <sys/param.h>
#include <sys/device.h>
#include <sys/errno.h>
#include <sys/systm.h>
#include <sys/mbuf.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <sys/syslog.h>
#include <sys/select.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/gumstix/gumstixvar.h>
#include "locators.h"
static int sm_gxio_match(device_t, struct cfdata *, void *);
static void sm_gxio_attach(device_t, device_t, void *);
static int ether_serial_digit = 1;
struct sm_gxio_softc {
struct smc91cxx_softc sc_smc;
void *sc_ih;
};
CFATTACH_DECL(sm_gxio, sizeof(struct sm_gxio_softc),
sm_gxio_match, sm_gxio_attach, NULL, NULL);
/* ARGSUSED */
static int
sm_gxio_match(device_t parent, struct cfdata *match, void *aux)
{
struct gxio_attach_args *gxa = aux;
bus_space_tag_t iot = gxa->gxa_iot;
bus_space_handle_t ioh;
u_int16_t tmp;
int rv = 0;
extern const char *smc91cxx_idstrs[];
/* Disallow wildcarded values. */
if (gxa->gxa_addr == GXIOCF_ADDR_DEFAULT)
return (0);
if (gxa->gxa_gpirq == GXIOCF_GPIRQ_DEFAULT)
return (0);
if (bus_space_map(iot, gxa->gxa_addr, SMC_IOSIZE, 0, &ioh) != 0)
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;
if (ether_serial_digit > 15)
goto out;
/*
* Assume we have an SMC91Cxx.
*/
rv = 1;
out:
bus_space_unmap(iot, ioh, SMC_IOSIZE);
return (rv);
}
/* ARGSUSED */
void
sm_gxio_attach(device_t parent, device_t self, void *aux)
{
struct sm_gxio_softc *gsc = device_private(self);
struct smc91cxx_softc *sc = &gsc->sc_smc;
struct gxio_attach_args *gxa = aux;
bus_space_handle_t ioh;
u_int8_t myea[ETHER_ADDR_LEN];
aprint_normal("\n");
aprint_naive("\n");
/* Map i/o space. */
if (bus_space_map(gxa->gxa_iot, gxa->gxa_addr, SMC_IOSIZE, 0, &ioh))
panic("sm_gxio_attach: can't map i/o space");
sc->sc_bst = gxa->gxa_iot;
sc->sc_bsh = ioh;
/* should always be enabled */
sc->sc_flags |= SMC_FLAGS_ENABLED;
if (system_serial_high != 0 || system_serial_low != 0) {
myea[0] = ((system_serial_high >> 8) & 0xfe) | 0x02;
myea[1] = system_serial_high;
myea[2] = system_serial_low >> 24;
myea[3] = system_serial_low >> 16;
myea[4] = system_serial_low >> 8;
myea[5] = (system_serial_low & 0xc0) |
(1 << 4) | ((ether_serial_digit++) & 0x0f);
smc91cxx_attach(sc, myea);
} else
smc91cxx_attach(sc, NULL);
/* Establish the interrupt handler. */
gsc->sc_ih = gxio_intr_establish(gxa->gxa_sc,
gxa->gxa_gpirq, IST_EDGE_RISING, IPL_NET, smc91cxx_intr, sc);
if (gsc->sc_ih == NULL)
aprint_error_dev(self,
"couldn't establish interrupt handler\n");
}