xref: /netbsd/sys/arch/algor/dev/bonito_mainbus.c (revision bf9ec67e)
1 /*	$NetBSD: bonito_mainbus.c,v 1.2 2002/05/16 01:01:30 thorpej Exp $	*/
2 
3 /*-
4  * Copyright (c) 2001 The NetBSD Foundation, Inc.
5  * All rights reserved.
6  *
7  * This code is derived from software contributed to The NetBSD Foundation
8  * by Jason R. Thorpe.
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  * 3. All advertising materials mentioning features or use of this software
19  *    must display the following acknowledgement:
20  *	This product includes software developed by the NetBSD
21  *	Foundation, Inc. and its contributors.
22  * 4. Neither the name of The NetBSD Foundation nor the names of its
23  *    contributors may be used to endorse or promote products derived
24  *    from this software without specific prior written permission.
25  *
26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
36  * POSSIBILITY OF SUCH DAMAGE.
37  */
38 
39 #include "opt_algor_p6032.h"
40 
41 #include <sys/param.h>
42 #include <sys/systm.h>
43 #include <sys/conf.h>
44 #include <sys/reboot.h>
45 #include <sys/device.h>
46 
47 #include <machine/bus.h>
48 #include <machine/autoconf.h>
49 
50 #include <mips/bonito/bonitoreg.h>
51 
52 #ifdef ALGOR_P6032
53 #include <algor/algor/algor_p6032var.h>
54 #endif
55 
56 struct bonito_softc {
57 	struct device sc_dev;
58 	struct bonito_config *sc_bonito;
59 };
60 
61 int	bonito_mainbus_match(struct device *, struct cfdata *, void *);
62 void	bonito_mainbus_attach(struct device *, struct device *, void *);
63 
64 struct cfattach bonito_mainbus_ca = {
65 	sizeof(struct bonito_softc), bonito_mainbus_match,
66 	    bonito_mainbus_attach,
67 };
68 extern struct cfdriver bonito_cd;
69 
70 int	bonito_mainbus_print(void *, const char *);
71 
72 int
73 bonito_mainbus_match(struct device *parent, struct cfdata *cf, void *aux)
74 {
75 	struct mainbus_attach_args *ma = aux;
76 
77 	if (strcmp(ma->ma_name, bonito_cd.cd_name) == 0)
78 		return (1);
79 
80 	return (0);
81 }
82 
83 void
84 bonito_mainbus_attach(struct device *parent, struct device *self, void *aux)
85 {
86 	struct bonito_softc *sc = (void *) self;
87 	struct pcibus_attach_args pba;
88 	struct bonito_config *bc;
89 	pcireg_t rev;
90 
91 	/*
92 	 * There is only one PCI controller on an Algorithmics board.
93 	 */
94 #if defined(ALGOR_P6032)
95 	bc = &p6032_configuration.ac_bonito;
96 #endif
97 	sc->sc_bonito = bc;
98 
99 	rev = PCI_REVISION(REGVAL(BONITO_PCICLASS));
100 
101 	printf(": BONITO Memory and PCI controller, %s rev. %d.%d\n",
102 	    BONITO_REV_FPGA(rev) ? "FPGA" : "ASIC",
103 	    BONITO_REV_MAJOR(rev), BONITO_REV_MINOR(rev));
104 
105 	pba.pba_busname = "pci";
106 	pba.pba_flags = PCI_FLAGS_IO_ENABLED | PCI_FLAGS_MEM_ENABLED;
107 	pba.pba_bus = 0;
108 	pba.pba_bridgetag = NULL;
109 
110 #if defined(ALGOR_P6032)
111 	    {
112 		struct p6032_config *acp = &p6032_configuration;
113 
114 		pba.pba_iot = &acp->ac_iot;
115 		pba.pba_memt = &acp->ac_memt;
116 		pba.pba_dmat = &acp->ac_pci_dmat;
117 		pba.pba_pc = &acp->ac_pc;
118 	    }
119 #endif /* ALGOR_P6032 */
120 
121 	(void) config_found(self, &pba, bonito_mainbus_print);
122 }
123 
124 int
125 bonito_mainbus_print(void *aux, const char *pnp)
126 {
127 	struct pcibus_attach_args *pba = aux;
128 
129 	/* only PCIs can attach to BONITOs; easy. */
130 	if (pnp)
131 		printf("%s at %s", pba->pba_busname, pnp);
132 	printf(" bus %d", pba->pba_bus);
133 
134 	return (UNCONF);
135 }
136