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502a5395 | 1 | /* |
3cbee15b | 2 | * QEMU Grackle PCI host (heathrow OldWorld PowerMac) |
502a5395 | 3 | * |
3cbee15b JM |
4 | * Copyright (c) 2006-2007 Fabrice Bellard |
5 | * Copyright (c) 2007 Jocelyn Mayer | |
5fafdf24 | 6 | * |
502a5395 PB |
7 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
8 | * of this software and associated documentation files (the "Software"), to deal | |
9 | * in the Software without restriction, including without limitation the rights | |
10 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
11 | * copies of the Software, and to permit persons to whom the Software is | |
12 | * furnished to do so, subject to the following conditions: | |
13 | * | |
14 | * The above copyright notice and this permission notice shall be included in | |
15 | * all copies or substantial portions of the Software. | |
16 | * | |
17 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
18 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
19 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
20 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
21 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
22 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | |
23 | * THE SOFTWARE. | |
24 | */ | |
25 | ||
87ecb68b | 26 | #include "hw.h" |
3cbee15b | 27 | #include "ppc_mac.h" |
87ecb68b PB |
28 | #include "pci.h" |
29 | ||
ea026b2f BS |
30 | /* debug Grackle */ |
31 | //#define DEBUG_GRACKLE | |
32 | ||
33 | #ifdef DEBUG_GRACKLE | |
34 | #define GRACKLE_DPRINTF(fmt, args...) \ | |
35 | do { printf("GRACKLE: " fmt , ##args); } while (0) | |
36 | #else | |
37 | #define GRACKLE_DPRINTF(fmt, args...) | |
38 | #endif | |
39 | ||
502a5395 PB |
40 | typedef target_phys_addr_t pci_addr_t; |
41 | #include "pci_host.h" | |
42 | ||
43 | typedef PCIHostState GrackleState; | |
44 | ||
45 | static void pci_grackle_config_writel (void *opaque, target_phys_addr_t addr, | |
46 | uint32_t val) | |
47 | { | |
48 | GrackleState *s = opaque; | |
ea026b2f BS |
49 | |
50 | GRACKLE_DPRINTF("config_writel addr " TARGET_FMT_plx " val %x\n", addr, | |
51 | val); | |
502a5395 PB |
52 | #ifdef TARGET_WORDS_BIGENDIAN |
53 | val = bswap32(val); | |
54 | #endif | |
55 | s->config_reg = val; | |
56 | } | |
57 | ||
58 | static uint32_t pci_grackle_config_readl (void *opaque, target_phys_addr_t addr) | |
59 | { | |
60 | GrackleState *s = opaque; | |
61 | uint32_t val; | |
62 | ||
63 | val = s->config_reg; | |
64 | #ifdef TARGET_WORDS_BIGENDIAN | |
65 | val = bswap32(val); | |
66 | #endif | |
ea026b2f BS |
67 | GRACKLE_DPRINTF("config_readl addr " TARGET_FMT_plx " val %x\n", addr, |
68 | val); | |
502a5395 PB |
69 | return val; |
70 | } | |
71 | ||
72 | static CPUWriteMemoryFunc *pci_grackle_config_write[] = { | |
73 | &pci_grackle_config_writel, | |
74 | &pci_grackle_config_writel, | |
75 | &pci_grackle_config_writel, | |
76 | }; | |
77 | ||
78 | static CPUReadMemoryFunc *pci_grackle_config_read[] = { | |
79 | &pci_grackle_config_readl, | |
80 | &pci_grackle_config_readl, | |
81 | &pci_grackle_config_readl, | |
82 | }; | |
83 | ||
84 | static CPUWriteMemoryFunc *pci_grackle_write[] = { | |
85 | &pci_host_data_writeb, | |
86 | &pci_host_data_writew, | |
87 | &pci_host_data_writel, | |
88 | }; | |
89 | ||
90 | static CPUReadMemoryFunc *pci_grackle_read[] = { | |
91 | &pci_host_data_readb, | |
92 | &pci_host_data_readw, | |
93 | &pci_host_data_readl, | |
94 | }; | |
95 | ||
d2b59317 PB |
96 | /* Don't know if this matches real hardware, but it agrees with OHW. */ |
97 | static int pci_grackle_map_irq(PCIDevice *pci_dev, int irq_num) | |
502a5395 | 98 | { |
d2b59317 PB |
99 | return (irq_num + (pci_dev->devfn >> 3)) & 3; |
100 | } | |
101 | ||
d537cf6c | 102 | static void pci_grackle_set_irq(qemu_irq *pic, int irq_num, int level) |
d2b59317 | 103 | { |
ea026b2f | 104 | GRACKLE_DPRINTF("set_irq num %d level %d\n", irq_num, level); |
3cbee15b | 105 | qemu_set_irq(pic[irq_num + 0x15], level); |
502a5395 PB |
106 | } |
107 | ||
9b64997f BS |
108 | static void pci_grackle_save(QEMUFile* f, void *opaque) |
109 | { | |
110 | PCIDevice *d = opaque; | |
111 | ||
112 | pci_device_save(d, f); | |
113 | } | |
114 | ||
115 | static int pci_grackle_load(QEMUFile* f, void *opaque, int version_id) | |
116 | { | |
117 | PCIDevice *d = opaque; | |
118 | ||
119 | if (version_id != 1) | |
120 | return -EINVAL; | |
121 | ||
122 | return pci_device_load(d, f); | |
123 | } | |
124 | ||
6e6b7363 BS |
125 | static void pci_grackle_reset(void *opaque) |
126 | { | |
127 | } | |
128 | ||
d537cf6c | 129 | PCIBus *pci_grackle_init(uint32_t base, qemu_irq *pic) |
502a5395 PB |
130 | { |
131 | GrackleState *s; | |
132 | PCIDevice *d; | |
133 | int pci_mem_config, pci_mem_data; | |
134 | ||
135 | s = qemu_mallocz(sizeof(GrackleState)); | |
80b3ada7 | 136 | s->bus = pci_register_bus(pci_grackle_set_irq, pci_grackle_map_irq, |
3cbee15b | 137 | pic, 0, 4); |
502a5395 | 138 | |
5fafdf24 | 139 | pci_mem_config = cpu_register_io_memory(0, pci_grackle_config_read, |
502a5395 PB |
140 | pci_grackle_config_write, s); |
141 | pci_mem_data = cpu_register_io_memory(0, pci_grackle_read, | |
142 | pci_grackle_write, s); | |
143 | cpu_register_physical_memory(base, 0x1000, pci_mem_config); | |
144 | cpu_register_physical_memory(base + 0x00200000, 0x1000, pci_mem_data); | |
5fafdf24 | 145 | d = pci_register_device(s->bus, "Grackle host bridge", sizeof(PCIDevice), |
502a5395 | 146 | 0, NULL, NULL); |
deb54399 AL |
147 | pci_config_set_vendor_id(d->config, PCI_VENDOR_ID_MOTOROLA); |
148 | pci_config_set_device_id(d->config, PCI_DEVICE_ID_MOTOROLA_MPC106); | |
502a5395 PB |
149 | d->config[0x08] = 0x00; // revision |
150 | d->config[0x09] = 0x01; | |
173a543b | 151 | pci_config_set_class(d->config, PCI_CLASS_BRIDGE_HOST); |
6407f373 | 152 | d->config[PCI_HEADER_TYPE] = PCI_HEADER_TYPE_NORMAL; // header_type |
502a5395 | 153 | |
502a5395 PB |
154 | #if 0 |
155 | /* PCI2PCI bridge same values as PearPC - check this */ | |
4ebcf884 BS |
156 | pci_config_set_vendor_id(d->config, PCI_VENDOR_ID_DEC); |
157 | pci_config_set_device_id(d->config, PCI_DEVICE_ID_DEC_21154); | |
502a5395 | 158 | d->config[0x08] = 0x02; // revision |
173a543b | 159 | pci_config_set_class(d->config, PCI_CLASS_BRIDGE_PCI); |
6407f373 | 160 | d->config[PCI_HEADER_TYPE] = PCI_HEADER_TYPE_BRIDGE; // header_type |
502a5395 PB |
161 | |
162 | d->config[0x18] = 0x0; // primary_bus | |
163 | d->config[0x19] = 0x1; // secondary_bus | |
164 | d->config[0x1a] = 0x1; // subordinate_bus | |
165 | d->config[0x1c] = 0x10; // io_base | |
166 | d->config[0x1d] = 0x20; // io_limit | |
3b46e624 | 167 | |
502a5395 PB |
168 | d->config[0x20] = 0x80; // memory_base |
169 | d->config[0x21] = 0x80; | |
170 | d->config[0x22] = 0x90; // memory_limit | |
171 | d->config[0x23] = 0x80; | |
3b46e624 | 172 | |
502a5395 PB |
173 | d->config[0x24] = 0x00; // prefetchable_memory_base |
174 | d->config[0x25] = 0x84; | |
175 | d->config[0x26] = 0x00; // prefetchable_memory_limit | |
176 | d->config[0x27] = 0x85; | |
177 | #endif | |
9b64997f | 178 | register_savevm("grackle", 0, 1, pci_grackle_save, pci_grackle_load, d); |
6e6b7363 BS |
179 | qemu_register_reset(pci_grackle_reset, d); |
180 | pci_grackle_reset(d); | |
181 | ||
502a5395 PB |
182 | return s->bus; |
183 | } |