1 /* $NetBSD: mcclock_jazzio.c,v 1.11 2008/03/29 05:42:45 tsutsui 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) 1992, 1993 7 * The Regents of the University of California. All rights reserved. 8 * 9 * This code is derived from software contributed to Berkeley by 10 * the Systems Programming Group of the University of Utah Computer 11 * Science Department and Ralph Campbell. 12 * 13 * Redistribution and use in source and binary forms, with or without 14 * modification, are permitted provided that the following conditions 15 * are met: 16 * 1. Redistributions of source code must retain the above copyright 17 * notice, this list of conditions and the following disclaimer. 18 * 2. Redistributions in binary form must reproduce the above copyright 19 * notice, this list of conditions and the following disclaimer in the 20 * documentation and/or other materials provided with the distribution. 21 * 3. Neither the name of the University nor the names of its contributors 22 * may be used to endorse or promote products derived from this software 23 * without specific prior written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 28 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 31 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 35 * SUCH DAMAGE. 36 * 37 * from: Utah Hdr: clock.c 1.18 91/01/21 38 * 39 * @(#)clock.c 8.1 (Berkeley) 6/10/93 40 */ 41 /* 42 * Copyright (c) 1988 University of Utah. 43 * 44 * This code is derived from software contributed to Berkeley by 45 * the Systems Programming Group of the University of Utah Computer 46 * Science Department and Ralph Campbell. 47 * 48 * Redistribution and use in source and binary forms, with or without 49 * modification, are permitted provided that the following conditions 50 * are met: 51 * 1. Redistributions of source code must retain the above copyright 52 * notice, this list of conditions and the following disclaimer. 53 * 2. Redistributions in binary form must reproduce the above copyright 54 * notice, this list of conditions and the following disclaimer in the 55 * documentation and/or other materials provided with the distribution. 56 * 3. All advertising materials mentioning features or use of this software 57 * must display the following acknowledgement: 58 * This product includes software developed by the University of 59 * California, Berkeley and its contributors. 60 * 4. Neither the name of the University nor the names of its contributors 61 * may be used to endorse or promote products derived from this software 62 * without specific prior written permission. 63 * 64 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 65 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 66 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 67 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 68 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 69 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 70 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 71 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 72 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 73 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 74 * SUCH DAMAGE. 75 * 76 * from: Utah Hdr: clock.c 1.18 91/01/21 77 * 78 * @(#)clock.c 8.1 (Berkeley) 6/10/93 79 */ 80 81 #include <sys/cdefs.h> 82 __KERNEL_RCSID(0, "$NetBSD: mcclock_jazzio.c,v 1.11 2008/03/29 05:42:45 tsutsui Exp $"); 83 84 #include <sys/param.h> 85 #include <sys/systm.h> 86 #include <sys/device.h> 87 88 #include <machine/autoconf.h> 89 #include <machine/bus.h> 90 91 #include <dev/clock_subr.h> 92 93 #include <dev/ic/mc146818reg.h> 94 #include <dev/ic/mc146818var.h> 95 96 #include <arc/jazz/jazziovar.h> 97 #include <arc/jazz/mcclock_jazziovar.h> 98 99 int mcclock_jazzio_match(device_t, cfdata_t, void *); 100 void mcclock_jazzio_attach(device_t, device_t, void *); 101 102 CFATTACH_DECL_NEW(mcclock_jazzio, sizeof(struct mc146818_softc), 103 mcclock_jazzio_match, mcclock_jazzio_attach, NULL, NULL); 104 105 struct mcclock_jazzio_config *mcclock_jazzio_conf = NULL; 106 static int mcclock_jazzio_found = 0; 107 108 int 109 mcclock_jazzio_match(device_t parent, cfdata_t cf, void *aux) 110 { 111 struct jazzio_attach_args *ja = aux; 112 113 /* make sure that we're looking for this type of device. */ 114 if (strcmp(ja->ja_name, "dallas_rtc") != 0) 115 return 0; 116 117 if (mcclock_jazzio_found) 118 return 0; 119 120 return 1; 121 } 122 123 void 124 mcclock_jazzio_attach(device_t parent, device_t self, void *aux) 125 { 126 struct mc146818_softc *sc = device_private(self); 127 struct jazzio_attach_args *ja = aux; 128 129 if (mcclock_jazzio_conf == NULL) 130 panic("mcclock_jazzio_conf isn't initialized"); 131 132 sc->sc_dev = self; 133 sc->sc_bst = ja->ja_bust; 134 if (bus_space_map(sc->sc_bst, 135 ja->ja_addr, mcclock_jazzio_conf->mjc_iosize, 0, &sc->sc_bsh)) { 136 aprint_error(": unable to map I/O space\n"); 137 return; 138 } 139 140 sc->sc_year0 = 1980; 141 sc->sc_mcread = mcclock_jazzio_conf->mjc_mc_read; 142 sc->sc_mcwrite = mcclock_jazzio_conf->mjc_mc_write; 143 144 mc146818_attach(sc); 145 146 aprint_normal("\n"); 147 148 /* Turn interrupts off, just in case. */ 149 (*sc->sc_mcwrite)(sc, MC_REGB, MC_REGB_BINARY | MC_REGB_24HR); 150 151 mcclock_jazzio_found = 1; 152 } 153