238 lines
7.1 KiB
C
238 lines
7.1 KiB
C
/* $NetBSD: if_sm_obio.c,v 1.6 2012/11/12 18:00:39 skrll Exp $ */
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/*
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* Copyright (c) 2002, 2003 Genetec Corporation. All rights reserved.
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* Written by Hiroyuki Bessho for Genetec 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. The name of Genetec Corporation may not be used to endorse or
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* promote products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY GENETEC CORPORATION ``AS IS'' AND
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* 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 GENETEC 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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* attach sm driver to Lubbock on-board bus
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* based on sys/dev/isa/if_sm_isa.c
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*
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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_obio.c,v 1.6 2012/11/12 18:00:39 skrll 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 <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/lubbock/lubbock_var.h>
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#include "opt_lubbock.h" /* LUBBOCK_SMC91C96_16BIT */
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int sm_obio_match(device_t, cfdata_t, void *);
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void sm_obio_attach(device_t, device_t, void *);
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struct sm_obio_softc {
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struct smc91cxx_softc sc_smc; /* real "smc" softc */
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/* OBIO-specific goo. */
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void *sc_ih; /* interrupt handler */
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};
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CFATTACH_DECL_NEW(sm_obio, sizeof(struct sm_obio_softc), sm_obio_match,
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sm_obio_attach, NULL, NULL);
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extern struct bus_space smobio8_bs_tag;
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#ifndef SM_OBIO_INTR_PARANOIA
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# define smintr smc91cxx_intr
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#else
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# define smintr smc_obio_intr
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static int
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smc_obio_intr(void *arg)
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{
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while (smc91cxx_intr(arg))
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;
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return 1;
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}
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#endif /* SM_OBIO_INTR_PARANOIA */
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int
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sm_obio_match(device_t parent, cfdata_t match, void *aux)
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{
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struct obio_attach_args *oba = aux;
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bus_space_tag_t iot = &smobio8_bs_tag;
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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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/* Map i/o space. */
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if (bus_space_map(iot, oba->oba_addr, 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_1(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_1(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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/*
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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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if (!rv) {
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printf("on-board SMC probe failed\n");
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}
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return (rv);
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}
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void
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sm_obio_attach(device_t parent, device_t self, void *aux)
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{
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struct sm_obio_softc *isc = device_private(self);
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struct smc91cxx_softc *sc = &isc->sc_smc;
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struct obio_attach_args *oba = aux;
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bus_space_handle_t ioh;
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#ifdef LUBBOCK_SMC91C96_16BIT
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bus_space_tag_t iot = &pxa2x0_a4x_bs_tag;
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#else
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bus_space_tag_t iot = &smobio8_bs_tag;
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#endif
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printf("\n");
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/* Map i/o space. */
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if (bus_space_map(iot, oba->oba_addr, SMC_IOSIZE, 0, &ioh))
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panic("sm_obio_attach: can't map i/o space");
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#ifdef LUBBOCK_SMC91C96_16BIT
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/* RedBoot initializes on-board SMSC91C96 in 8-bit mode.
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we take it back to 16-bit by clearing ECSR.IOIs8 */
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{
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int tmp;
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bus_space_write_1(&smobio8_bs_tag, ioh, BANK_SELECT_REG_W, 4);
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tmp = bus_space_read_1(&smobio8_bs_tag, ioh, ECSR_REG_B);
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bus_space_write_1(&smobio8_bs_tag, ioh,
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ECSR_REG_B, tmp & ~ECSR_IOIS8);
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}
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obio16_write(LUBBOCK_MISCWR,
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obio16_read(LUBBOCK_MISCWR) & ~MISCWR_ENETEN16 );
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#else
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/* Force 8bit mode */
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obio16_write(LUBBOCK_MISCWR,
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obio16_read(LUBBOCK_MISCWR) | MISCWR_ENETEN16);
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#endif /* LUBBOCK_SMC91C96_16BIT */
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sc->sc_dev = self;
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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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/* 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 = obio_intr_establish(device_private(parent),
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oba->oba_intr, IPL_NET, smintr, sc);
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if (isc->sc_ih == NULL)
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aprint_normal_dev(self, "couldn't establish interrupt handler\n");
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}
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