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      1 /*      $NetBSD: a1k2cp.c,v 1.6 2026/10/11 17:23:13 rkujawa Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 2012 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Radoslaw Kujawa.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 /* Driver for A1200 on-board clockport. */
     33 
     34 #include <sys/cdefs.h>
     35 
     36 #include <sys/systm.h>
     37 #include <sys/types.h>
     38 #include <sys/device.h>
     39 #include <sys/bus.h>
     40 #include <sys/conf.h>
     41 #include <sys/kmem.h>
     42 
     43 #include <machine/cpu.h>
     44 
     45 #include <amiga/amiga/device.h>
     46 
     47 #include <amiga/dev/zbusvar.h>
     48 
     49 #include <amiga/clockport/clockportvar.h>
     50 
     51 /* #define A1K2CP_DEBUG		1 */
     52 
     53 #define A1K2CP_BASE		0xD80001
     54 
     55 static int	a1k2cp_match(device_t, cfdata_t, void *);
     56 static void	a1k2cp_attach(device_t, device_t, void *);
     57 
     58 struct a1k2cp_softc {
     59 	device_t	sc_dev;
     60 
     61 	struct bus_space_tag sc_bst;
     62 	struct clockportbus_attach_args sc_cpb_aa;
     63 };
     64 
     65 CFATTACH_DECL_NEW(a1k2cp, sizeof(struct a1k2cp_softc),
     66     a1k2cp_match, a1k2cp_attach, NULL, NULL);
     67 
     68 static int
     69 a1k2cp_match(device_t parent, cfdata_t cf, void *aux)
     70 {
     71 
     72 	static int a1k2cp_matched = 0;
     73 
     74 	if (!matchname("a1k2cp", aux))
     75 		return 0;
     76 
     77 	if (a1k2cp_matched)
     78 		return 0;
     79 
     80 	if (!is_a1200())
     81 		return 0;
     82 
     83 	a1k2cp_matched = 1;
     84 	return 1;
     85 }
     86 
     87 static void
     88 a1k2cp_attach(device_t parent, device_t self, void *aux)
     89 {
     90 	struct a1k2cp_softc *sc;
     91 
     92 	sc = device_private(self);
     93 	sc->sc_dev = self;
     94 
     95 	aprint_normal(": A1200 on-board clockport\n");
     96 
     97 	sc->sc_bst.base = (bus_addr_t) __UNVOLATILE(ztwomap(A1K2CP_BASE));
     98 	sc->sc_bst.absm = &amiga_bus_stride_4;
     99 
    100 	sc->sc_cpb_aa.cp_iot = &sc->sc_bst;
    101 	sc->sc_cpb_aa.cp_intr_establish = clockport_generic_intr_establish;
    102 	sc->sc_cpb_aa.cp_intr_disestablish =
    103 	    clockport_generic_intr_disestablish;
    104 
    105 #ifdef A1K2CP_DEBUG
    106 	aprint_normal_dev(sc->sc_dev, "pa %x va %p\n",
    107 	    A1K2CP_BASE, (void*) sc->sc_bst.base);
    108 #endif /* A1K2CP_DEBUG */
    109 
    110 	config_found(sc->sc_dev, &sc->sc_cpb_aa, 0, CFARGS_NONE);
    111 }
    112