1/* $NetBSD: mcclock_ibus.c,v 1.18 2011/06/04 01:43:56 tsutsui Exp $ */ 2 3/* 4 * Copyright (c) 1994, 1995, 1996 Carnegie-Mellon University. 5 * All rights reserved. 6 * 7 * Author: Chris G. Demetriou 8 * 9 * Permission to use, copy, modify and distribute this software and 10 * its documentation is hereby granted, provided that both the copyright 11 * notice and this permission notice appear in all copies of the 12 * software, derivative works or modified versions, and any portions 13 * thereof, and that both notices appear in supporting documentation. 14 * 15 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 16 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND 17 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 18 * 19 * Carnegie Mellon requests users of this software to return to 20 * 21 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU 22 * School of Computer Science 23 * Carnegie Mellon University 24 * Pittsburgh PA 15213-3890 25 * 26 * any improvements or extensions that they make and grant Carnegie the 27 * rights to redistribute these changes. 28 */ 29 30#include <sys/cdefs.h> /* RCS ID & Copyright macro defns */ 31__KERNEL_RCSID(0, "$NetBSD: mcclock_ibus.c,v 1.18 2011/06/04 01:43:56 tsutsui Exp $"); 32 33#include <sys/param.h> 34#include <sys/cpu.h> 35#include <sys/device.h> 36#include <sys/kernel.h> 37#include <sys/systm.h> 38 39#include <dev/clock_subr.h> 40 41#include <dev/dec/mcclockvar.h> 42#include <dev/dec/mcclock_pad32.h> 43 44#include <pmax/ibus/ibusvar.h> 45 46static int mcclock_ibus_match(device_t, cfdata_t, void *); 47static void mcclock_ibus_attach(device_t, device_t, void *); 48 49CFATTACH_DECL_NEW(mcclock_ibus, sizeof (struct mcclock_pad32_softc), 50 mcclock_ibus_match, mcclock_ibus_attach, NULL, NULL); 51 52static int 53mcclock_ibus_match(device_t parent, cfdata_t cf, void *aux) 54{ 55 struct ibus_attach_args *ia = aux; 56 57 if (strcmp("mc146818", ia->ia_name) != 0) 58 return (0); 59 60 if (badaddr((void *)ia->ia_addr, sizeof(uint32_t))) 61 return (0); 62 63 return (1); 64} 65 66static void 67mcclock_ibus_attach(device_t parent, device_t self, void *aux) 68{ 69 struct ibus_attach_args *ia = aux; 70 struct mcclock_pad32_softc *sc = device_private(self); 71 72 sc->sc_mcclock.sc_dev = self; 73 sc->sc_dp = (struct mcclock_pad32_clockdatum*)ia->ia_addr; 74 75 /* Attach MI driver, using busfns with TC-style register padding */ 76 mcclock_attach(&sc->sc_mcclock, &mcclock_pad32_busfns); 77} 78