119 lines
3.9 KiB
C
119 lines
3.9 KiB
C
/* $NetBSD: mkclock_ap.c,v 1.4 2005/12/11 12:18:24 christos Exp $ */
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/*-
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* Copyright (c) 1996 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.
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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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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: mkclock_ap.c,v 1.4 2005/12/11 12:18:24 christos Exp $");
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#include <sys/param.h>
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#include <sys/kernel.h>
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#include <sys/systm.h>
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#include <sys/device.h>
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#include <machine/cpu.h>
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#include <machine/bus.h>
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#include <dev/clock_subr.h>
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#include <dev/ic/mk48txxreg.h>
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#include <dev/ic/mk48txxvar.h>
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#include <newsmips/apbus/apbusvar.h>
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#define MKCLOCK_AP_STRIDE 2
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#define MKCLOCK_AP_OFFSET \
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((MK48T02_CLKOFF + MK48TXX_ICSR) << MKCLOCK_AP_STRIDE)
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int mkclock_ap_match(struct device *, struct cfdata *, void *);
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void mkclock_ap_attach(struct device *, struct device *, void *);
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static uint8_t mkclock_ap_nvrd(struct mk48txx_softc *, int);
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static void mkclock_ap_nvwr(struct mk48txx_softc *, int, uint8_t);
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CFATTACH_DECL(mkclock_ap, sizeof(struct mk48txx_softc),
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mkclock_ap_match, mkclock_ap_attach, NULL, NULL);
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extern struct cfdriver mkclock_cd;
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int
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mkclock_ap_match(struct device *parent, struct cfdata *cf, void *aux)
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{
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struct apbus_attach_args *apa = aux;
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if (strcmp("clock", apa->apa_name) != 0)
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return 0;
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return 1;
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}
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void
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mkclock_ap_attach(struct device *parent, struct device *self, void *aux)
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{
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struct mk48txx_softc *sc = (void *)self;
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struct apbus_attach_args *apa = aux;
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printf(" slot%d addr 0x%lx", apa->apa_slotno, apa->apa_hwbase);
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if (bus_space_map(sc->sc_bst, apa->apa_hwbase - MKCLOCK_AP_OFFSET,
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MK48T02_CLKSZ, 0, &sc->sc_bsh) != 0)
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printf("can't map device space\n");
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sc->sc_model = "mk48t02";
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sc->sc_year0 = 1900;
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sc->sc_nvrd = mkclock_ap_nvrd;
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sc->sc_nvwr = mkclock_ap_nvwr;
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mk48txx_attach(sc);
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printf("\n");
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todr_attach(&sc->sc_handle);
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}
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static uint8_t
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mkclock_ap_nvrd(struct mk48txx_softc *sc, int off)
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{
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uint8_t rv;
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rv = bus_space_read_4(sc->sc_bst, sc->sc_bsh, off << MKCLOCK_AP_STRIDE);
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return rv;
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}
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static void
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mkclock_ap_nvwr(struct mk48txx_softc *sc, int off, uint8_t v)
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{
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bus_space_write_4(sc->sc_bst, sc->sc_bsh, off << MKCLOCK_AP_STRIDE, v);
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}
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