mkclock_sbdio.c revision 1.1.18.2
1 1.1.18.2 yamt /* $NetBSD: mkclock_sbdio.c,v 1.1.18.2 2006/06/21 14:51:20 yamt Exp $ */ 2 1.1.18.2 yamt 3 1.1.18.2 yamt /*- 4 1.1.18.2 yamt * Copyright (c) 1996 The NetBSD Foundation, Inc. 5 1.1.18.2 yamt * All rights reserved. 6 1.1.18.2 yamt * 7 1.1.18.2 yamt * This code is derived from software contributed to The NetBSD Foundation 8 1.1.18.2 yamt * by Jason R. Thorpe. 9 1.1.18.2 yamt * 10 1.1.18.2 yamt * Redistribution and use in source and binary forms, with or without 11 1.1.18.2 yamt * modification, are permitted provided that the following conditions 12 1.1.18.2 yamt * are met: 13 1.1.18.2 yamt * 1. Redistributions of source code must retain the above copyright 14 1.1.18.2 yamt * notice, this list of conditions and the following disclaimer. 15 1.1.18.2 yamt * 2. Redistributions in binary form must reproduce the above copyright 16 1.1.18.2 yamt * notice, this list of conditions and the following disclaimer in the 17 1.1.18.2 yamt * documentation and/or other materials provided with the distribution. 18 1.1.18.2 yamt * 3. All advertising materials mentioning features or use of this software 19 1.1.18.2 yamt * must display the following acknowledgement: 20 1.1.18.2 yamt * This product includes software developed by the NetBSD 21 1.1.18.2 yamt * Foundation, Inc. and its contributors. 22 1.1.18.2 yamt * 4. Neither the name of The NetBSD Foundation nor the names of its 23 1.1.18.2 yamt * contributors may be used to endorse or promote products derived 24 1.1.18.2 yamt * from this software without specific prior written permission. 25 1.1.18.2 yamt * 26 1.1.18.2 yamt * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 1.1.18.2 yamt * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 1.1.18.2 yamt * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 1.1.18.2 yamt * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 1.1.18.2 yamt * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 1.1.18.2 yamt * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 1.1.18.2 yamt * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 1.1.18.2 yamt * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 1.1.18.2 yamt * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 1.1.18.2 yamt * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 1.1.18.2 yamt * POSSIBILITY OF SUCH DAMAGE. 37 1.1.18.2 yamt */ 38 1.1.18.2 yamt 39 1.1.18.2 yamt #include <sys/cdefs.h> 40 1.1.18.2 yamt __KERNEL_RCSID(0, "$NetBSD: mkclock_sbdio.c,v 1.1.18.2 2006/06/21 14:51:20 yamt Exp $"); 41 1.1.18.2 yamt 42 1.1.18.2 yamt #include <sys/param.h> 43 1.1.18.2 yamt #include <sys/kernel.h> 44 1.1.18.2 yamt #include <sys/systm.h> 45 1.1.18.2 yamt #include <sys/device.h> 46 1.1.18.2 yamt 47 1.1.18.2 yamt #include <machine/cpu.h> 48 1.1.18.2 yamt #include <machine/bus.h> 49 1.1.18.2 yamt #include <machine/sbdiovar.h> 50 1.1.18.2 yamt 51 1.1.18.2 yamt #include <dev/clock_subr.h> 52 1.1.18.2 yamt 53 1.1.18.2 yamt #include <dev/ic/mk48txxreg.h> 54 1.1.18.2 yamt #include <dev/ic/mk48txxvar.h> 55 1.1.18.2 yamt 56 1.1.18.2 yamt #include "ioconf.h" 57 1.1.18.2 yamt 58 1.1.18.2 yamt #define MKCLOCK_SBD_STRIDE 2 59 1.1.18.2 yamt 60 1.1.18.2 yamt int mkclock_sbdio_match(struct device *, struct cfdata *, void *); 61 1.1.18.2 yamt void mkclock_sbdio_attach(struct device *, struct device *, void *); 62 1.1.18.2 yamt static uint8_t mkclock_sbdio_nvrd(struct mk48txx_softc *, int); 63 1.1.18.2 yamt static void mkclock_sbdio_nvwr(struct mk48txx_softc *, int, uint8_t); 64 1.1.18.2 yamt 65 1.1.18.2 yamt CFATTACH_DECL(mkclock_sbdio, sizeof(struct mk48txx_softc), 66 1.1.18.2 yamt mkclock_sbdio_match, mkclock_sbdio_attach, NULL, NULL); 67 1.1.18.2 yamt 68 1.1.18.2 yamt int 69 1.1.18.2 yamt mkclock_sbdio_match(struct device *parent, struct cfdata *cf, void *aux) 70 1.1.18.2 yamt { 71 1.1.18.2 yamt struct sbdio_attach_args *sa = aux; 72 1.1.18.2 yamt 73 1.1.18.2 yamt if (strcmp("mkclock", sa->sa_name) != 0) 74 1.1.18.2 yamt return 0; 75 1.1.18.2 yamt 76 1.1.18.2 yamt return 1; 77 1.1.18.2 yamt } 78 1.1.18.2 yamt 79 1.1.18.2 yamt void 80 1.1.18.2 yamt mkclock_sbdio_attach(struct device *parent, struct device *self, void *aux) 81 1.1.18.2 yamt { 82 1.1.18.2 yamt struct mk48txx_softc *sc = (void *)self; 83 1.1.18.2 yamt struct sbdio_attach_args *sa = aux; 84 1.1.18.2 yamt bus_size_t size; 85 1.1.18.2 yamt 86 1.1.18.2 yamt printf(" at %p", (void *)sa->sa_addr1); 87 1.1.18.2 yamt 88 1.1.18.2 yamt switch (sa->sa_flags) { 89 1.1.18.2 yamt case 0x0000: 90 1.1.18.2 yamt sc->sc_model = "mk48t08"; 91 1.1.18.2 yamt size = MK48T08_CLKSZ; 92 1.1.18.2 yamt break; 93 1.1.18.2 yamt 94 1.1.18.2 yamt case 0x0001: 95 1.1.18.2 yamt sc->sc_model = "mk48t18"; 96 1.1.18.2 yamt size = MK48T18_CLKSZ; 97 1.1.18.2 yamt break; 98 1.1.18.2 yamt 99 1.1.18.2 yamt default: 100 1.1.18.2 yamt printf(": unknown model, assume"); 101 1.1.18.2 yamt sc->sc_model = "mk48t18"; 102 1.1.18.2 yamt size = MK48T18_CLKSZ; 103 1.1.18.2 yamt break; 104 1.1.18.2 yamt } 105 1.1.18.2 yamt 106 1.1.18.2 yamt sc->sc_bst = sa->sa_bust; 107 1.1.18.2 yamt if (bus_space_map(sc->sc_bst, sa->sa_addr1, size, 0, 108 1.1.18.2 yamt &sc->sc_bsh) != 0) { 109 1.1.18.2 yamt printf(": can't map device space\n"); 110 1.1.18.2 yamt return; 111 1.1.18.2 yamt } 112 1.1.18.2 yamt 113 1.1.18.2 yamt sc->sc_year0 = 2000; /* XXX Is this OK? */ 114 1.1.18.2 yamt sc->sc_nvrd = mkclock_sbdio_nvrd; 115 1.1.18.2 yamt sc->sc_nvwr = mkclock_sbdio_nvwr; 116 1.1.18.2 yamt 117 1.1.18.2 yamt mk48txx_attach(sc); 118 1.1.18.2 yamt 119 1.1.18.2 yamt printf("\n"); 120 1.1.18.2 yamt 121 1.1.18.2 yamt todr_attach(&sc->sc_handle); 122 1.1.18.2 yamt } 123 1.1.18.2 yamt 124 1.1.18.2 yamt static uint8_t 125 1.1.18.2 yamt mkclock_sbdio_nvrd(struct mk48txx_softc *sc, int off) 126 1.1.18.2 yamt { 127 1.1.18.2 yamt uint8_t rv; 128 1.1.18.2 yamt 129 1.1.18.2 yamt rv = bus_space_read_1(sc->sc_bst, sc->sc_bsh, 130 1.1.18.2 yamt off << MKCLOCK_SBD_STRIDE); 131 1.1.18.2 yamt return rv; 132 1.1.18.2 yamt } 133 1.1.18.2 yamt 134 1.1.18.2 yamt static void 135 1.1.18.2 yamt mkclock_sbdio_nvwr(struct mk48txx_softc *sc, int off, uint8_t v) 136 1.1.18.2 yamt { 137 1.1.18.2 yamt 138 1.1.18.2 yamt bus_space_write_1(sc->sc_bst, sc->sc_bsh, off << MKCLOCK_SBD_STRIDE, v); 139 1.1.18.2 yamt } 140
Indexes created Sat Oct 25 01:09:55 GMT 2025