1 /* $NetBSD: mcclock_jazzio.c,v 1.3 2002/10/02 04:59:49 thorpej Exp $ */ 2 /* $OpenBSD: clock_mc.c,v 1.9 1998/03/16 09:38:26 pefo Exp $ */ 3 /* NetBSD: clock_mc.c,v 1.2 1995/06/28 04:30:30 cgd Exp */ 4 5 /* 6 * Copyright (c) 1988 University of Utah. 7 * Copyright (c) 1992, 1993 8 * The Regents of the University of California. All rights reserved. 9 * 10 * This code is derived from software contributed to Berkeley by 11 * the Systems Programming Group of the University of Utah Computer 12 * Science Department and Ralph Campbell. 13 * 14 * Redistribution and use in source and binary forms, with or without 15 * modification, are permitted provided that the following conditions 16 * are met: 17 * 1. Redistributions of source code must retain the above copyright 18 * notice, this list of conditions and the following disclaimer. 19 * 2. Redistributions in binary form must reproduce the above copyright 20 * notice, this list of conditions and the following disclaimer in the 21 * documentation and/or other materials provided with the distribution. 22 * 3. All advertising materials mentioning features or use of this software 23 * must display the following acknowledgement: 24 * This product includes software developed by the University of 25 * California, Berkeley and its contributors. 26 * 4. Neither the name of the University nor the names of its contributors 27 * may be used to endorse or promote products derived from this software 28 * without specific prior written permission. 29 * 30 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 31 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 32 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 33 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 34 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 35 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 36 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 37 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 38 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 39 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 40 * SUCH DAMAGE. 41 * 42 * from: Utah Hdr: clock.c 1.18 91/01/21 43 * 44 * @(#)clock.c 8.1 (Berkeley) 6/10/93 45 */ 46 47 #include <sys/param.h> 48 #include <sys/systm.h> 49 #include <sys/device.h> 50 51 #include <machine/autoconf.h> 52 #include <machine/bus.h> 53 54 #include <dev/ic/mc146818reg.h> 55 56 #include <arc/dev/mcclockvar.h> 57 #include <arc/jazz/jazziovar.h> 58 #include <arc/jazz/mcclock_jazziovar.h> 59 60 int mcclock_jazzio_match __P((struct device *, struct cfdata *, void *)); 61 void mcclock_jazzio_attach __P((struct device *, struct device *, void *)); 62 63 CFATTACH_DECL(mcclock_jazzio, sizeof(struct mcclock_softc), 64 mcclock_jazzio_match, mcclock_jazzio_attach, NULL, NULL); 65 66 struct mcclock_jazzio_config *mcclock_jazzio_conf = NULL; 67 int mcclock_jazzio_found = 0; 68 69 int 70 mcclock_jazzio_match(parent, match, aux) 71 struct device *parent; 72 struct cfdata *match; 73 void *aux; 74 { 75 struct jazzio_attach_args *ja = aux; 76 77 /* make sure that we're looking for this type of device. */ 78 if (strcmp(ja->ja_name, "dallas_rtc") != 0) 79 return (0); 80 81 if (mcclock_jazzio_found) 82 return (0); 83 84 return (1); 85 } 86 87 void 88 mcclock_jazzio_attach(parent, self, aux) 89 struct device *parent; 90 struct device *self; 91 void *aux; 92 { 93 struct mcclock_softc *sc = (struct mcclock_softc *)self; 94 struct jazzio_attach_args *ja = aux; 95 96 if (mcclock_jazzio_conf == NULL) 97 panic("mcclock_jazzio_conf isn't initialized"); 98 99 sc->sc_iot = ja->ja_bust; 100 if (bus_space_map(sc->sc_iot, 101 ja->ja_addr, mcclock_jazzio_conf->mjc_iosize, 0, &sc->sc_ioh)) { 102 printf(": unable to map I/O space\n"); 103 return; 104 } 105 106 mcclock_attach(sc, &mcclock_jazzio_conf->mjc_mcbusfns, 80); 107 108 /* Turn interrupts off, just in case. */ 109 mc146818_write(sc, MC_REGB, MC_REGB_BINARY | MC_REGB_24HR); 110 111 mcclock_jazzio_found = 1; 112 } 113