mainbus.c revision 1.3 
1/*	$NetBSD: mainbus.c,v 1.3 2020/06/14 01:40:04 chs Exp $	*/
2
3/*
4 * Copyright 2002 Wasabi Systems, Inc.
5 * All rights reserved.
6 *
7 * Written by Simon Burge for Wasabi Systems, Inc.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 *    notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 *    notice, this list of conditions and the following disclaimer in the
16 *    documentation and/or other materials provided with the distribution.
17 * 3. All advertising materials mentioning features or use of this software
18 *    must display the following acknowledgement:
19 *      This product includes software developed for the NetBSD Project by
20 *      Wasabi Systems, Inc.
21 * 4. The name of Wasabi Systems, Inc. may not be used to endorse
22 *    or promote products derived from this software without specific prior
23 *    written permission.
24 *
25 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
27 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
28 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL WASABI SYSTEMS, INC
29 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
32 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
33 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
34 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
35 * POSSIBILITY OF SUCH DAMAGE.
36 */
37
38#include <sys/cdefs.h>
39__KERNEL_RCSID(0, "$NetBSD: mainbus.c,v 1.3 2020/06/14 01:40:04 chs Exp $");
40
41#include "opt_pci.h"
42
43#include <sys/param.h>
44#include <sys/systm.h>
45#include <sys/device.h>
46#if defined(PCI_NETBSD_CONFIGURE)
47#include <sys/extent.h>
48#include <sys/malloc.h>
49#endif
50
51#include <dev/pci/pcivar.h>
52#if defined(PCI_NETBSD_CONFIGURE)
53#include <dev/pci/pciconf.h>
54#endif
55
56#include <mips/cache.h>
57#include <mips/cpuregs.h>
58
59#include <mips/bonito/bonitoreg.h>
60
61#include <evbmips/loongson/autoconf.h>
62#if defined(PCI_NETBSD_CONFIGURE)
63#include <evbmips/loongson/loongson_bus_defs.h>
64#endif
65
66#include "locators.h"
67#include "pci.h"
68
69static int	mainbus_match(device_t, cfdata_t, void *);
70static void	mainbus_attach(device_t, device_t, void *);
71static int	mainbus_print(void *, const char *);
72
73CFATTACH_DECL_NEW(mainbus, 0,
74    mainbus_match, mainbus_attach, NULL, NULL);
75
76/* There can be only one. */
77static bool mainbus_found;
78
79const char * const mainbusdevs[] = {
80	"cpu",
81	"bonito",
82#if 0
83	"i2c",
84	"gpio",
85#endif
86};
87
88static int
89mainbus_match(device_t parent, cfdata_t match, void *aux)
90{
91	if (mainbus_found)
92		return (0);
93
94	return (1);
95}
96
97static void
98mainbus_attach(device_t parent, device_t self, void *aux)
99{
100	size_t i;
101
102	mainbus_found = true;
103	aprint_normal("\n");
104
105#if defined(PCI_NETBSD_CONFIGURE)
106	struct extent *ioext = extent_create("pciio",  0x00001000, 0x00003fff,
107	    NULL, 0, EX_WAITOK);
108	struct extent *memext = extent_create("pcimem", 0, BONITO_PCILO_SIZE,
109	    NULL, 0, EX_WAITOK);
110	struct mips_cache_info * const mci = &mips_cache_info;
111
112	pci_configure_bus(&bonito_pc, ioext, memext,
113	    NULL, 0, mci->mci_dcache_align);
114	extent_destroy(ioext);
115	extent_destroy(memext);
116#endif /* PCI_NETBSD_CONFIGURE */
117
118	for (i = 0; i < __arraycount(mainbusdevs); i++) {
119		struct mainbus_attach_args maa;
120		maa.maa_name = mainbusdevs[i];
121		(void) config_found(self, &maa, mainbus_print);
122	}
123}
124
125static int
126mainbus_print(void *aux, const char *pnp)
127{
128	struct mainbus_attach_args *maa = aux;
129
130	if (pnp)
131		aprint_normal("%s at %s", maa->maa_name, pnp);
132
133	return UNCONF;
134}
135