1/* $NetBSD: mainbus.c,v 1.1 2026/01/09 22:54:29 jmcneill Exp $ */
2
3/*
4 * Copyright (c) 2002, 2024 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Lennart Augustsson (lennart@augustsson.net) at Sandburst Corp.
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#include <sys/cdefs.h>
33__KERNEL_RCSID(0, "$NetBSD: mainbus.c,v 1.1 2026/01/09 22:54:29 jmcneill Exp $");
34
35#include <sys/param.h>
36#include <sys/device.h>
37#include <sys/systm.h>
38
39#include <sys/bus.h>
40#include <machine/wii.h>
41#include <machine/wiiu.h>
42#include <machine/pio.h>
43#include <arch/evbppc/nintendo/dev/mainbus.h>
44
45#include "locators.h"
46
47extern struct powerpc_bus_space wii_mem_tag;
48extern struct powerpc_bus_dma_tag wii_bus_dma_tag;
49
50int	mainbus_match(device_t, cfdata_t, void *);
51void	mainbus_attach(device_t, device_t, void *);
52
53CFATTACH_DECL_NEW(mainbus, 0,
54    mainbus_match, mainbus_attach, NULL, NULL);
55
56int
57mainbus_match(device_t parent, cfdata_t match, void *aux)
58{
59	return 1;
60}
61
62static int
63mainbus_print(void *aux, const char *pnp)
64{
65	struct mainbus_attach_args *mba = aux;
66
67	if (pnp) {
68		aprint_normal("%s at %s", mba->maa_name, pnp);
69	}
70	if (mba->maa_addr != MAINBUSCF_ADDR_DEFAULT) {
71		aprint_normal(" addr 0x%08lx", mba->maa_addr);
72	}
73	if (mba->maa_irq != MAINBUSCF_IRQ_DEFAULT) {
74		aprint_normal(" irq %d", mba->maa_irq);
75	}
76	return UNCONF;
77}
78
79void
80mainbus_attach(device_t parent, device_t self, void *aux)
81{
82	struct mainbus_attach_args maa;
83	int maxcpu, n;
84
85	aprint_normal(": Nintendo Wii%s%s\n",
86	    wiiu_plat ? " U" : "",
87	    (!wiiu_plat || wiiu_native) ? "" : " (vWii)");
88
89	maa.maa_bst = &wii_mem_tag;
90	maa.maa_dmat = &wii_bus_dma_tag;
91
92	maxcpu = wiiu_native ? 3 : 1;
93
94	for (n = 0; n < uimin(maxcpu, CPU_MAXNUM); n++) {
95		maa.maa_name = "cpu";
96		maa.maa_addr = MAINBUSCF_ADDR_DEFAULT;
97		maa.maa_irq = MAINBUSCF_IRQ_DEFAULT;
98		config_found(self, &maa, mainbus_print, CFARGS_NONE);
99	}
100
101	maa.maa_name = "exi";
102	maa.maa_addr = EXI_BASE;
103	maa.maa_irq = PI_IRQ_EXI;
104	config_found(self, &maa, mainbus_print, CFARGS_NONE);
105
106	maa.maa_name = "genfb";
107	maa.maa_addr = VI_BASE;
108	maa.maa_irq = PI_IRQ_VI;
109	config_found(self, &maa, mainbus_print, CFARGS_NONE);
110
111	maa.maa_name = "ahb";
112	maa.maa_addr = MAINBUSCF_ADDR_DEFAULT;
113	maa.maa_irq = PI_IRQ_HOLLYWOOD;
114	config_found(self, &maa, mainbus_print, CFARGS_NONE);
115
116	maa.maa_name = "bwai";
117	maa.maa_addr = AI_BASE;
118	maa.maa_irq = PI_IRQ_AI;
119	config_found(self, &maa, mainbus_print, CFARGS_NONE);
120
121	maa.maa_name = "bwdsp";
122	maa.maa_addr = wiiu_native ? WIIU_DSP_BASE : DSP_BASE;
123	maa.maa_irq = MAINBUSCF_IRQ_DEFAULT;
124	config_found(self, &maa, mainbus_print, CFARGS_NONE);
125
126	if (!wiiu_native) {
127		maa.maa_name = "si";
128		maa.maa_addr = SI_BASE;
129		maa.maa_irq = PI_IRQ_SI;
130		config_found(self, &maa, mainbus_print, CFARGS_NONE);
131	}
132}
133