209 lines
6.6 KiB
C
209 lines
6.6 KiB
C
/* $NetBSD: if_sm_gxio.c,v 1.11 2012/10/27 17:17:47 chs Exp $ */
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/*
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* Copyright (C) 2005, 2006 WIDE Project and SOUM Corporation.
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* All rights reserved.
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*
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* Written by Takashi Kiyohara and Susumu Miki for WIDE Project and SOUM
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* Corporation.
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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. Neither the name of the project nor the name of SOUM Corporation
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE PROJECT and SOUM CORPORATION ``AS IS''
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* 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 PROJECT AND SOUM CORPORATION
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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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* Copyright (c) 1997 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 Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
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* NASA Ames Research Center.
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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 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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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: if_sm_gxio.c,v 1.11 2012/10/27 17:17:47 chs Exp $");
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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/systm.h>
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#include <sys/mbuf.h>
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#include <sys/socket.h>
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#include <sys/ioctl.h>
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#include <sys/syslog.h>
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#include <sys/select.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 <machine/intr.h>
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#include <sys/bus.h>
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#include <dev/mii/mii.h>
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#include <dev/mii/miivar.h>
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#include <dev/ic/smc91cxxreg.h>
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#include <dev/ic/smc91cxxvar.h>
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#include <evbarm/gumstix/gumstixvar.h>
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#include "locators.h"
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static int sm_gxio_match(device_t, struct cfdata *, void *);
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static void sm_gxio_attach(device_t, device_t, void *);
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static int ether_serial_digit = 1;
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struct sm_gxio_softc {
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struct smc91cxx_softc sc_smc;
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void *sc_ih;
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};
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CFATTACH_DECL_NEW(sm_gxio, sizeof(struct sm_gxio_softc),
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sm_gxio_match, sm_gxio_attach, NULL, NULL);
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/* ARGSUSED */
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static int
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sm_gxio_match(device_t parent, struct cfdata *match, void *aux)
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{
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struct gxio_attach_args *gxa = aux;
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bus_space_tag_t iot = gxa->gxa_iot;
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bus_space_handle_t ioh;
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uint16_t tmp;
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int rv = 0;
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extern const char *smc91cxx_idstrs[];
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/* Disallow wildcarded values. */
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if (gxa->gxa_addr == GXIOCF_ADDR_DEFAULT)
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return 0;
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if (gxa->gxa_gpirq == GXIOCF_GPIRQ_DEFAULT)
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return 0;
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if (bus_space_map(iot, gxa->gxa_addr, SMC_IOSIZE, 0, &ioh) != 0)
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return 0;
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/* Check that high byte of BANK_SELECT is what we expect. */
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tmp = bus_space_read_2(iot, ioh, BANK_SELECT_REG_W);
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if ((tmp & BSR_DETECT_MASK) != BSR_DETECT_VALUE)
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goto out;
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/*
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* Switch to bank 0 and perform the test again.
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* XXX INVASIVE!
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*/
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bus_space_write_2(iot, ioh, BANK_SELECT_REG_W, 0);
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tmp = bus_space_read_2(iot, ioh, BANK_SELECT_REG_W);
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if ((tmp & BSR_DETECT_MASK) != BSR_DETECT_VALUE)
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goto out;
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/*
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* Check for a recognized chip id.
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* XXX INVASIVE!
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*/
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bus_space_write_2(iot, ioh, BANK_SELECT_REG_W, 3);
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tmp = bus_space_read_2(iot, ioh, REVISION_REG_W);
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if (smc91cxx_idstrs[RR_ID(tmp)] == NULL)
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goto out;
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if (ether_serial_digit > 15)
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goto out;
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/*
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* Assume we have an SMC91Cxx.
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*/
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rv = 1;
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out:
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bus_space_unmap(iot, ioh, SMC_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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sm_gxio_attach(device_t parent, device_t self, void *aux)
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{
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struct sm_gxio_softc *gsc = device_private(self);
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struct smc91cxx_softc *sc = &gsc->sc_smc;
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struct gxio_attach_args *gxa = aux;
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bus_space_handle_t ioh;
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uint8_t myea[ETHER_ADDR_LEN];
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aprint_normal("\n");
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aprint_naive("\n");
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KASSERT(system_serial_high != 0 || system_serial_low != 0);
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/* Map i/o space. */
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if (bus_space_map(gxa->gxa_iot, gxa->gxa_addr, SMC_IOSIZE, 0, &ioh))
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panic("sm_gxio_attach: can't map i/o space");
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sc->sc_dev = self;
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sc->sc_bst = gxa->gxa_iot;
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sc->sc_bsh = ioh;
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/* should always be enabled */
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sc->sc_flags |= SMC_FLAGS_ENABLED;
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myea[0] = ((system_serial_high >> 8) & 0xfe) | 0x02;
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myea[1] = system_serial_high;
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myea[2] = system_serial_low >> 24;
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myea[3] = system_serial_low >> 16;
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myea[4] = system_serial_low >> 8;
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myea[5] = (system_serial_low & 0xc0) |
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(1 << 4) | ((ether_serial_digit++) & 0x0f);
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smc91cxx_attach(sc, myea);
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/* Establish the interrupt handler. */
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gsc->sc_ih = gxio_intr_establish(gxa->gxa_sc,
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gxa->gxa_gpirq, IST_EDGE_RISING, IPL_NET, smc91cxx_intr, sc);
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if (gsc->sc_ih == NULL)
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aprint_error_dev(self,
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"couldn't establish interrupt handler\n");
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}
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