1 /* $NetBSD: mainbus.c,v 1.4 2024/06/18 13:35:26 rin 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 1.4 2024/06/18 13:35:26 rin 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/pio.h>
42 #include <arch/evbppc/wii/dev/mainbus.h>
43
44 #include "locators.h"
45 #include "mainbus.h"
46
47 extern struct powerpc_bus_space wii_mem_tag;
48 extern struct powerpc_bus_dma_tag wii_bus_dma_tag;
49
50 int mainbus_match(device_t, cfdata_t, void *);
51 void mainbus_attach(device_t, device_t, void *);
52
53 CFATTACH_DECL_NEW(mainbus, 0,
54 mainbus_match, mainbus_attach, NULL, NULL);
55
56 int
mainbus_match(device_t parent,cfdata_t match,void * aux)57 mainbus_match(device_t parent, cfdata_t match, void *aux)
58 {
59 return 1;
60 }
61
62 static int
mainbus_print(void * aux,const char * pnp)63 mainbus_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
79 void
mainbus_attach(device_t parent,device_t self,void * aux)80 mainbus_attach(device_t parent, device_t self, void *aux)
81 {
82 struct mainbus_attach_args maa;
83
84 aprint_normal(": Nintendo Wii\n");
85
86 /*
87 * GCC 12 blames pointer reference to 0-th page, [0, 0xfff].
88 * XXX map to higher address as done for, e.g., arm by devmap?
89 */
90 #pragma GCC diagnostic push
91 #pragma GCC diagnostic ignored "-Warray-bounds"
92 aprint_debug_dev(self, "mem1 0x%x, mem2 0x%x\n",
93 in32(GLOBAL_MEM1_SIZE), in32(GLOBAL_MEM2_SIZE));
94 aprint_debug_dev(self, "cpu %u, bus %u, vidmode %u\n",
95 in32(GLOBAL_CPU_SPEED), in32(GLOBAL_BUS_SPEED),
96 in32(GLOBAL_CUR_VID_MODE));
97 #pragma GCC diagnostic pop
98
99 aprint_debug_dev(self, "ios version 0x%x\n", in32(GLOBAL_IOS_VERSION));
100
101 maa.maa_bst = &wii_mem_tag;
102 maa.maa_dmat = &wii_bus_dma_tag;
103
104 maa.maa_name = "cpu";
105 maa.maa_addr = MAINBUSCF_ADDR_DEFAULT;
106 maa.maa_irq = MAINBUSCF_IRQ_DEFAULT;
107 config_found(self, &maa, mainbus_print, CFARGS_NONE);
108
109 maa.maa_name = "genfb";
110 maa.maa_addr = VI_BASE;
111 maa.maa_irq = MAINBUSCF_IRQ_DEFAULT;
112 config_found(self, &maa, mainbus_print, CFARGS_NONE);
113
114 maa.maa_name = "exi";
115 maa.maa_addr = EXI_BASE;
116 maa.maa_irq = PI_IRQ_EXI;
117 config_found(self, &maa, mainbus_print, CFARGS_NONE);
118
119 maa.maa_name = "hollywood";
120 maa.maa_addr = MAINBUSCF_ADDR_DEFAULT;
121 maa.maa_irq = PI_IRQ_HOLLYWOOD;
122 config_found(self, &maa, mainbus_print, CFARGS_NONE);
123
124 maa.maa_name = "bwai";
125 maa.maa_addr = AI_BASE;
126 maa.maa_irq = PI_IRQ_AI;
127 config_found(self, &maa, mainbus_print, CFARGS_NONE);
128
129 maa.maa_name = "bwdsp";
130 maa.maa_addr = DSP_BASE;
131 maa.maa_irq = PI_IRQ_DSP;
132 config_found(self, &maa, mainbus_print, CFARGS_NONE);
133 }
134
135 static int cpu_match(device_t, cfdata_t, void *);
136 static void cpu_attach(device_t, device_t, void *);
137
138 CFATTACH_DECL_NEW(cpu, 0,
139 cpu_match, cpu_attach, NULL, NULL);
140
141 extern struct cfdriver cpu_cd;
142
143 int
cpu_match(device_t parent,cfdata_t cf,void * aux)144 cpu_match(device_t parent, cfdata_t cf, void *aux)
145 {
146 struct mainbus_attach_args *maa = aux;
147
148 if (strcmp(maa->maa_name, cpu_cd.cd_name) != 0) {
149 return 0;
150 }
151
152 if (cpu_info[0].ci_dev != NULL) {
153 return 0;
154 }
155
156 return 1;
157 }
158
159 void
cpu_attach(device_t parent,device_t self,void * aux)160 cpu_attach(device_t parent, device_t self, void *aux)
161 {
162 cpu_attach_common(self, 0);
163 }
164