1 /* $NetBSD: mcclock_jazzio.c,v 1.1 2001/06/13 15:02:15 soda 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 struct cfattach mcclock_jazzio_ca = { 64 sizeof(struct mcclock_softc), 65 mcclock_jazzio_match, mcclock_jazzio_attach 66 }; 67 68 struct mcclock_jazzio_config *mcclock_jazzio_conf = NULL; 69 int mcclock_jazzio_found = 0; 70 71 int 72 mcclock_jazzio_match(parent, match, aux) 73 struct device *parent; 74 struct cfdata *match; 75 void *aux; 76 { 77 struct jazzio_attach_args *ja = aux; 78 79 /* make sure that we're looking for this type of device. */ 80 if (strcmp(ja->ja_name, "dallas_rtc") != 0) 81 return (0); 82 83 if (mcclock_jazzio_found) 84 return (0); 85 86 return (1); 87 } 88 89 void 90 mcclock_jazzio_attach(parent, self, aux) 91 struct device *parent; 92 struct device *self; 93 void *aux; 94 { 95 struct mcclock_softc *sc = (struct mcclock_softc *)self; 96 struct jazzio_attach_args *ja = aux; 97 98 if (mcclock_jazzio_conf == NULL) 99 panic("mcclock_jazzio_conf isn't initialized"); 100 101 sc->sc_iot = ja->ja_bust; 102 if (bus_space_map(sc->sc_iot, 103 ja->ja_addr, mcclock_jazzio_conf->mjc_iosize, 0, &sc->sc_ioh)) { 104 printf(": unable to map I/O space\n"); 105 return; 106 } 107 108 mcclock_attach(sc, &mcclock_jazzio_conf->mjc_mcbusfns, 80); 109 110 /* Turn interrupts off, just in case. */ 111 mc146818_write(sc, MC_REGB, MC_REGB_BINARY | MC_REGB_24HR); 112 113 mcclock_jazzio_found = 1; 114 } 115