1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
|
/*-
* Copyright (C) 2012 Margarida Gouveia
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer,
* without modification, immediately at the beginning of the file.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/bus.h>
#include <sys/pcpu.h>
#include <sys/proc.h>
#include <sys/reboot.h>
#include <sys/smp.h>
#include <sys/fbio.h>
#include <vm/vm.h>
#include <vm/pmap.h>
#include <machine/bus.h>
#include <machine/cpu.h>
#include <machine/hid.h>
#include <machine/platform.h>
#include <machine/platformvar.h>
#include <machine/pmap.h>
#include <machine/smp.h>
#include <machine/spr.h>
#include <machine/vmparam.h>
#include <powerpc/wii/wii_fbreg.h>
#include <powerpc/wii/wii_ipcreg.h>
#include "platform_if.h"
static int wii_probe(platform_t);
static int wii_attach(platform_t);
static void wii_mem_regions(platform_t, struct mem_region *,
int *, struct mem_region *, int *);
static unsigned long wii_timebase_freq(platform_t, struct cpuref *);
static void wii_reset(platform_t);
static void wii_cpu_idle(sbintime_t);
extern void wiibus_reset_system(void);
static platform_method_t wii_methods[] = {
PLATFORMMETHOD(platform_probe, wii_probe),
PLATFORMMETHOD(platform_attach, wii_attach),
PLATFORMMETHOD(platform_mem_regions, wii_mem_regions),
PLATFORMMETHOD(platform_timebase_freq, wii_timebase_freq),
PLATFORMMETHOD(platform_reset, wii_reset),
PLATFORMMETHOD_END
};
static platform_def_t wii_platform = {
"wii",
wii_methods,
0
};
PLATFORM_DEF(wii_platform);
static int
wii_probe(platform_t plat)
{
register_t vers = mfpvr();
/*
* The Wii includes a PowerPC 750CL with custom modifications
* ("Broadway").
* For now, we just assume that if we are running on a
* PowerPC 750CL, then this platform is a Nintendo Wii.
*/
if ((vers & 0xfffff0e0) == (MPC750 << 16 | MPC750CL))
return (BUS_PROBE_SPECIFIC);
return (ENXIO);
}
static int
wii_attach(platform_t plat)
{
cpu_idle_hook = wii_cpu_idle;
return (0);
}
static void
wii_mem_regions(platform_t plat, struct mem_region *phys, int *physsz,
struct mem_region *avail_regions, int *availsz)
{
/* 24MB 1T-SRAM */
avail_regions[0].mr_start = 0x00000000;
avail_regions[0].mr_size = 0x01800000;
/*
* Reserve space for the framebuffer which is located
* at the end of this 24MB memory region. See wii_fbreg.h.
*/
avail_regions[0].mr_size -= WIIFB_FB_LEN;
/* 64MB GDDR3 SDRAM */
avail_regions[1].mr_start = 0x10000000;
avail_regions[1].mr_size = 0x04000000;
/*
* Reserve space for the DSP.
*/
avail_regions[1].mr_start += 0x4000;
avail_regions[1].mr_size -= 0x4000;
/*
* Reserve space for the IOS I/O memory.
*/
avail_regions[1].mr_size -= WIIIPC_IOH_LEN + 1;
memcpy(phys, avail_regions, 2*sizeof(*avail_regions));
*physsz = *availsz = 2;
}
static u_long
wii_timebase_freq(platform_t plat, struct cpuref *cpuref)
{
/* Bus Frequency (243MHz) / 4 */
return (60750000);
}
static void
wii_reset(platform_t plat __unused)
{
wiibus_reset_system();
}
static void
wii_cpu_idle(sbintime_t sbt)
{
}
|
