124 lines
3.6 KiB
C
124 lines
3.6 KiB
C
/* $NetBSD: a2kbbc.c,v 1.26 2013/01/27 19:58:04 rkujawa Exp $ */
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/*
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* Copyright (c) 1988 University of Utah.
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* Copyright (c) 1982, 1990 The Regents of the University of California.
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* All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* the Systems Programming Group of the University of Utah Computer
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* Science Department.
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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 University nor the names of its contributors
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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 REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR 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, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* from: Utah $Hdr: clock.c 1.18 91/01/21$
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*
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* @(#)clock.c 7.6 (Berkeley) 5/7/91
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: a2kbbc.c,v 1.26 2013/01/27 19:58:04 rkujawa Exp $");
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#include <sys/param.h>
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#include <sys/kernel.h>
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#include <sys/device.h>
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#include <sys/systm.h>
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#include <sys/bus.h>
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#include <machine/psl.h>
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#include <machine/cpu.h>
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#include <amiga/amiga/device.h>
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#include <amiga/amiga/custom.h>
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#include <amiga/amiga/cia.h>
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#include <amiga/dev/zbusvar.h>
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#include <dev/clock_subr.h>
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#include <dev/ic/msm6242bvar.h>
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#include <dev/ic/msm6242breg.h>
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#define A2KBBC_ADDR 0xDC0000 /* XXX: possible D80000 on A2000 "A"? */
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static int a2kbbc_match(device_t, cfdata_t, void *);
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static void a2kbbc_attach(device_t, device_t, void *);
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struct a2kbbc_softc {
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struct msm6242b_softc sc_msm6242b;
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struct bus_space_tag sc_bst;
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};
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CFATTACH_DECL_NEW(a2kbbc, sizeof(struct a2kbbc_softc),
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a2kbbc_match, a2kbbc_attach, NULL, NULL);
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static int
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a2kbbc_match(device_t parent, cfdata_t cf, void *aux)
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{
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static int a2kbbc_matched = 0;
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if (!matchname("a2kbbc", aux))
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return (0);
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/* Allow only one instance. */
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if (a2kbbc_matched)
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return (0);
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if (/* is_a1200() || */ is_a3000() || is_a4000()
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#ifdef DRACO
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|| is_draco()
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#endif
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)
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return (0);
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a2kbbc_matched = 1;
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return (1);
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}
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/*
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* Attach us to the rtc function pointers.
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*/
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void
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a2kbbc_attach(device_t parent, device_t self, void *aux)
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{
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struct a2kbbc_softc *sc;
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struct msm6242b_softc *msc;
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sc = device_private(self);
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msc = &sc->sc_msm6242b;
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msc->sc_dev = self;
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sc->sc_bst.base = (bus_addr_t) __UNVOLATILE(ztwomap(A2KBBC_ADDR+1));
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sc->sc_bst.absm = &amiga_bus_stride_4;
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msc->sc_iot = &sc->sc_bst;
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if (bus_space_map(msc->sc_iot, 0, MSM6242B_SIZE, 0, &msc->sc_ioh)) {
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aprint_error_dev(msc->sc_dev, "couldn't map registers\n");
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return;
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}
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msm6242b_attach(msc);
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}
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