131 lines
3.9 KiB
C
131 lines
3.9 KiB
C
/* $NetBSD: if_smsh_gpmc.c,v 1.3 2012/09/04 22:58:35 matt Exp $ */
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/*
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* Copyright (c) 2010 KIYOHARA Takashi
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* All rights reserved.
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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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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* 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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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: if_smsh_gpmc.c,v 1.3 2012/09/04 22:58:35 matt Exp $");
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#include "locators.h"
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#include <sys/param.h>
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#include <sys/device.h>
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#include <sys/errno.h>
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#include <sys/bus.h>
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#include <sys/systm.h>
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#include <net/if.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/miivar.h>
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#include <dev/ic/lan9118var.h>
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#include <dev/ic/lan9118reg.h>
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#include <arm/omap/omap2_gpmcvar.h>
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static int smsh_gpmc_match(device_t, struct cfdata *, void *);
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static void smsh_gpmc_attach(device_t, device_t, void *);
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CFATTACH_DECL_NEW(smsh_gpmc, sizeof(struct lan9118_softc),
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smsh_gpmc_match, smsh_gpmc_attach, NULL, NULL);
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/* ARGSUSED */
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static int
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smsh_gpmc_match(device_t parent, struct cfdata *match, void *aux)
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{
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struct gpmc_attach_args *gpmc = aux;
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bus_space_tag_t iot = gpmc->gpmc_iot;
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bus_space_handle_t ioh;
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uint32_t val;
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int rv = 0;
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/* Disallow wildcarded values. */
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if (gpmc->gpmc_addr == GPMCCF_ADDR_DEFAULT)
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return 0;
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if (gpmc->gpmc_intr == GPMCCF_INTR_DEFAULT)
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return 0;
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if (bus_space_map(iot, gpmc->gpmc_addr, LAN9118_IOSIZE, 0, &ioh) != 0)
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return 0;
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bus_space_write_4(iot, ioh, LAN9118_BYTE_TEST, 0);
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val = bus_space_read_4(iot, ioh, LAN9118_BYTE_TEST);
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if (val == LAN9118_BYTE_TEST_VALUE)
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/* Assume we have an SMSC LAN9221 */
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rv = 1;
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bus_space_unmap(iot, ioh, LAN9118_IOSIZE);
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return rv;
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}
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/* ARGSUSED */
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static void
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smsh_gpmc_attach(device_t parent, device_t self, void *aux)
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{
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struct lan9118_softc *sc = device_private(self);
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struct gpmc_attach_args *gpmc = aux;
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prop_dictionary_t dict = device_properties(self);
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void *ih;
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sc->sc_dev = self;
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/*
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* Prefer the Ethernet address in device properties.
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*/
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prop_data_t ea = prop_dictionary_get(dict, "mac-address");
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if (ea != NULL) {
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KASSERT(prop_object_type(ea) == PROP_TYPE_DATA);
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KASSERT(prop_data_size(ea) == ETHER_ADDR_LEN);
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memcpy(sc->sc_enaddr, prop_data_data_nocopy(ea),
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ETHER_ADDR_LEN);
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sc->sc_flags |= LAN9118_FLAGS_NO_EEPROM;
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}
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/* Map i/o space. */
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if (bus_space_map(gpmc->gpmc_iot, gpmc->gpmc_addr, LAN9118_IOSIZE, 0,
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&sc->sc_ioh))
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panic("smsh_gpmc_attach: can't map i/o space");
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sc->sc_iot = gpmc->gpmc_iot;
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if (lan9118_attach(sc) != 0) {
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bus_space_unmap(sc->sc_iot, sc->sc_ioh, LAN9118_IOSIZE);
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return;
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}
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/* Establish the interrupt handler. */
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ih = intr_establish(gpmc->gpmc_intr, IPL_NET, IST_LEVEL_LOW,
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lan9118_intr, sc);
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if (ih == NULL) {
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aprint_error_dev(self,
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"couldn't establish interrupt handler\n");
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bus_space_unmap(sc->sc_iot, sc->sc_ioh, LAN9118_IOSIZE);
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return;
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}
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}
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