173 lines
5.3 KiB
C
173 lines
5.3 KiB
C
/* $NetBSD: if_sm_sysfpga.c,v 1.1 2002/10/22 15:19:08 scw Exp $ */
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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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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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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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/*
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* Based almost entirely on dev/isa/if_sm_isa.c
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*
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* There are just enough differences to make this copy worthwhile.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: if_sm_sysfpga.c,v 1.1 2002/10/22 15:19:08 scw Exp $");
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#include <sys/param.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/errno.h>
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#include <sys/syslog.h>
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#include <sys/select.h>
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#include <sys/device.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 <machine/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 <dev/isa/isavar.h>
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#include <evbsh5/dev/sysfpgavar.h>
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static int sm_sysfpga_match(struct device *, struct cfdata *, void *);
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static void sm_sysfpga_attach(struct device *, struct device *, void *);
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struct sm_sysfpga_softc {
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struct smc91cxx_softc sc_smc; /* real "smc" softc */
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void *sc_ih; /* interrupt cookie */
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};
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CFATTACH_DECL(sm_sysfpga, sizeof(struct sm_sysfpga_softc),
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sm_sysfpga_match, sm_sysfpga_attach, NULL, NULL);
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extern struct cfdriver sm_cd;
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static int
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sm_sysfpga_match(struct device *parent, struct cfdata *cf, void *aux)
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{
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struct sysfpga_attach_args *sa = aux;
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bus_space_tag_t iot = sa->sa_bust;
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bus_space_handle_t ioh;
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u_int16_t tmp;
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int rv = 0;
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extern const char *smc91cxx_idstrs[];
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if (strcmp(sa->sa_name, sm_cd.cd_name) != 0)
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return (0);
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/* Map the device. */
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if (bus_space_map(iot, sa->sa_offset, SMC_IOSIZE, 0, &ioh))
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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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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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static void
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sm_sysfpga_attach(struct device *parent, struct device *self, void *aux)
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{
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struct sm_sysfpga_softc *isc = (struct sm_sysfpga_softc *)self;
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struct smc91cxx_softc *sc = &isc->sc_smc;
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struct sysfpga_attach_args *sa = aux;
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bus_space_tag_t iot = sa->sa_bust;
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bus_space_handle_t ioh;
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printf("\n");
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/* Map the device. */
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if (bus_space_map(iot, sa->sa_offset, SMC_IOSIZE, 0, &ioh))
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panic("sm_sysfpga_attach: can't map device registers");
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sc->sc_bst = 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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/* read accesses are always 32-bits wide on Cayman ... */
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sc->sc_flags |= SMC_FLAGS_32BIT_READ;
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/* The PHY does not need to be isolated */
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sc->sc_mii.mii_flags |= MIIF_NOISOLATE;
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/* Perform generic intialization. */
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smc91cxx_attach(sc, NULL);
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/* Establish the interrupt handler. */
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isc->sc_ih = sysfpga_intr_establish(SYSFPGA_IGROUP_IRL1, IPL_NET,
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SYSFPGA_IRL1_INUM_LAN, smc91cxx_intr, sc);
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if (isc->sc_ih == NULL)
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printf("%s: couldn't establish interrupt handler\n",
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sc->sc_dev.dv_xname);
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}
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