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
|
/*
* QEMU Grackle PCI host (heathrow OldWorld PowerMac)
*
* Copyright (c) 2006-2007 Fabrice Bellard
* Copyright (c) 2007 Jocelyn Mayer
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include "hw.h"
#include "ppc_mac.h"
#include "pci.h"
typedef target_phys_addr_t pci_addr_t;
#include "pci_host.h"
typedef PCIHostState GrackleState;
static void pci_grackle_config_writel (void *opaque, target_phys_addr_t addr,
uint32_t val)
{
GrackleState *s = opaque;
#ifdef TARGET_WORDS_BIGENDIAN
val = bswap32(val);
#endif
s->config_reg = val;
}
static uint32_t pci_grackle_config_readl (void *opaque, target_phys_addr_t addr)
{
GrackleState *s = opaque;
uint32_t val;
val = s->config_reg;
#ifdef TARGET_WORDS_BIGENDIAN
val = bswap32(val);
#endif
return val;
}
static CPUWriteMemoryFunc *pci_grackle_config_write[] = {
&pci_grackle_config_writel,
&pci_grackle_config_writel,
&pci_grackle_config_writel,
};
static CPUReadMemoryFunc *pci_grackle_config_read[] = {
&pci_grackle_config_readl,
&pci_grackle_config_readl,
&pci_grackle_config_readl,
};
static CPUWriteMemoryFunc *pci_grackle_write[] = {
&pci_host_data_writeb,
&pci_host_data_writew,
&pci_host_data_writel,
};
static CPUReadMemoryFunc *pci_grackle_read[] = {
&pci_host_data_readb,
&pci_host_data_readw,
&pci_host_data_readl,
};
/* Don't know if this matches real hardware, but it agrees with OHW. */
static int pci_grackle_map_irq(PCIDevice *pci_dev, int irq_num)
{
return (irq_num + (pci_dev->devfn >> 3)) & 3;
}
static void pci_grackle_set_irq(qemu_irq *pic, int irq_num, int level)
{
qemu_set_irq(pic[irq_num + 0x15], level);
}
PCIBus *pci_grackle_init(uint32_t base, qemu_irq *pic)
{
GrackleState *s;
PCIDevice *d;
int pci_mem_config, pci_mem_data;
s = qemu_mallocz(sizeof(GrackleState));
s->bus = pci_register_bus(pci_grackle_set_irq, pci_grackle_map_irq,
pic, 0, 4);
pci_mem_config = cpu_register_io_memory(0, pci_grackle_config_read,
pci_grackle_config_write, s);
pci_mem_data = cpu_register_io_memory(0, pci_grackle_read,
pci_grackle_write, s);
cpu_register_physical_memory(base, 0x1000, pci_mem_config);
cpu_register_physical_memory(base + 0x00200000, 0x1000, pci_mem_data);
d = pci_register_device(s->bus, "Grackle host bridge", sizeof(PCIDevice),
0, NULL, NULL);
d->config[0x00] = 0x57; // vendor_id
d->config[0x01] = 0x10;
d->config[0x02] = 0x02; // device_id
d->config[0x03] = 0x00;
d->config[0x08] = 0x00; // revision
d->config[0x09] = 0x01;
d->config[0x0a] = 0x00; // class_sub = host
d->config[0x0b] = 0x06; // class_base = PCI_bridge
d->config[0x0e] = 0x00; // header_type
#if 0
/* PCI2PCI bridge same values as PearPC - check this */
d->config[0x00] = 0x11; // vendor_id
d->config[0x01] = 0x10;
d->config[0x02] = 0x26; // device_id
d->config[0x03] = 0x00;
d->config[0x08] = 0x02; // revision
d->config[0x0a] = 0x04; // class_sub = pci2pci
d->config[0x0b] = 0x06; // class_base = PCI_bridge
d->config[0x0e] = 0x01; // header_type
d->config[0x18] = 0x0; // primary_bus
d->config[0x19] = 0x1; // secondary_bus
d->config[0x1a] = 0x1; // subordinate_bus
d->config[0x1c] = 0x10; // io_base
d->config[0x1d] = 0x20; // io_limit
d->config[0x20] = 0x80; // memory_base
d->config[0x21] = 0x80;
d->config[0x22] = 0x90; // memory_limit
d->config[0x23] = 0x80;
d->config[0x24] = 0x00; // prefetchable_memory_base
d->config[0x25] = 0x84;
d->config[0x26] = 0x00; // prefetchable_memory_limit
d->config[0x27] = 0x85;
#endif
return s->bus;
}
|
