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      1 /*      $NetBSD: gencp_acafh.c,v 1.2 2026/10/11 17:23:13 rkujawa Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 2013 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 /* Clockport on ACA500. */
     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/acafhvar.h>
     48 #include <amiga/dev/zbusvar.h>
     49 
     50 #include <amiga/clockport/clockportvar.h>
     51 
     52 static int	gencp_acafh_match(device_t, cfdata_t, void *);
     53 static void	gencp_acafh_attach(device_t, device_t, void *);
     54 
     55 CFATTACH_DECL_NEW(gencp_acafh, sizeof(struct gencp_softc),
     56     gencp_acafh_match, gencp_acafh_attach, NULL, NULL);
     57 
     58 static int
     59 gencp_acafh_match(device_t parent, cfdata_t cf, void *aux)
     60 {
     61 	struct acafhbus_attach_args *aaa_aa;
     62 	static int attach_count = 0;
     63 
     64 	aaa_aa = aux;
     65 
     66 	if (strcmp(aaa_aa->aaa_name, "gencp_acafh") != 0)
     67 		return 0;
     68 
     69 	if (attach_count >= 1)
     70 		return 0;
     71 
     72 	attach_count++;
     73 
     74 	return 1;
     75 }
     76 
     77 static void
     78 gencp_acafh_attach(device_t parent, device_t self, void *aux)
     79 {
     80 	struct gencp_softc *sc;
     81 	struct acafhbus_attach_args *aaa_aa;
     82 
     83 	aaa_aa = aux;
     84 	sc = device_private(self);
     85 	sc->sc_dev = self;
     86 
     87 	/* Set the address and bus access methods. */
     88 	sc->cpb_bst.base =
     89 	    (bus_addr_t) __UNVOLATILE(ztwomap(aaa_aa->aaa_pbase));
     90 	sc->cpb_bst.absm = &amiga_bus_stride_4;
     91 
     92 	sc->cpb_aa.cp_iot = &sc->cpb_bst;
     93 
     94 	gencp_attach(sc);
     95 }
     96 
     97