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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
426f17bb 26#include "sysbus.h"
3cbee15b 27#include "ppc_mac.h"
87ecb68b 28#include "pci.h"
4f5e19e6 29#include "pci_host.h"
87ecb68b 30
ea026b2f
BS
31/* debug Grackle */
32//#define DEBUG_GRACKLE
33
34#ifdef DEBUG_GRACKLE
001faf32
BS
35#define GRACKLE_DPRINTF(fmt, ...) \
36 do { printf("GRACKLE: " fmt , ## __VA_ARGS__); } while (0)
ea026b2f 37#else
001faf32 38#define GRACKLE_DPRINTF(fmt, ...)
ea026b2f
BS
39#endif
40
426f17bb
BS
41typedef struct GrackleState {
42 SysBusDevice busdev;
43 PCIHostState host_state;
46f3069c
BS
44 MemoryRegion pci_mmio;
45 MemoryRegion pci_hole;
426f17bb 46} GrackleState;
502a5395 47
d2b59317
PB
48/* Don't know if this matches real hardware, but it agrees with OHW. */
49static int pci_grackle_map_irq(PCIDevice *pci_dev, int irq_num)
502a5395 50{
d2b59317
PB
51 return (irq_num + (pci_dev->devfn >> 3)) & 3;
52}
53
5d4e84c8 54static void pci_grackle_set_irq(void *opaque, int irq_num, int level)
d2b59317 55{
5d4e84c8
JQ
56 qemu_irq *pic = opaque;
57
ea026b2f 58 GRACKLE_DPRINTF("set_irq num %d level %d\n", irq_num, level);
3cbee15b 59 qemu_set_irq(pic[irq_num + 0x15], level);
502a5395
PB
60}
61
6e6b7363
BS
62static void pci_grackle_reset(void *opaque)
63{
64}
65
1e39101c 66PCIBus *pci_grackle_init(uint32_t base, qemu_irq *pic,
aee97b84
AK
67 MemoryRegion *address_space_mem,
68 MemoryRegion *address_space_io)
426f17bb
BS
69{
70 DeviceState *dev;
71 SysBusDevice *s;
72 GrackleState *d;
73
0ae46996 74 dev = qdev_create(NULL, "grackle-pcihost");
e23a1b33 75 qdev_init_nofail(dev);
426f17bb
BS
76 s = sysbus_from_qdev(dev);
77 d = FROM_SYSBUS(GrackleState, s);
46f3069c
BS
78
79 memory_region_init(&d->pci_mmio, "pci-mmio", 0x100000000ULL);
80 memory_region_init_alias(&d->pci_hole, "pci-hole", &d->pci_mmio,
81 0x80000000ULL, 0x7e000000ULL);
82 memory_region_add_subregion(address_space_mem, 0x80000000ULL,
83 &d->pci_hole);
84
cdd0935c 85 d->host_state.bus = pci_register_bus(&d->busdev.qdev, "pci",
426f17bb
BS
86 pci_grackle_set_irq,
87 pci_grackle_map_irq,
aee97b84 88 pic,
46f3069c 89 &d->pci_mmio,
aee97b84
AK
90 address_space_io,
91 0, 4);
426f17bb
BS
92
93 pci_create_simple(d->host_state.bus, 0, "grackle");
94
95 sysbus_mmio_map(s, 0, base);
96 sysbus_mmio_map(s, 1, base + 0x00200000);
97
98 return d->host_state.bus;
99}
100
81a322d4 101static int pci_grackle_init_device(SysBusDevice *dev)
426f17bb
BS
102{
103 GrackleState *s;
426f17bb
BS
104
105 s = FROM_SYSBUS(GrackleState, dev);
106
d0ed8076
AK
107 memory_region_init_io(&s->host_state.conf_mem, &pci_host_conf_le_ops,
108 &s->host_state, "pci-conf-idx", 0x1000);
109 memory_region_init_io(&s->host_state.data_mem, &pci_host_data_le_ops,
110 &s->host_state, "pci-data-idx", 0x1000);
750ecd44
AK
111 sysbus_init_mmio(dev, &s->host_state.conf_mem);
112 sysbus_init_mmio(dev, &s->host_state.data_mem);
426f17bb 113
426f17bb 114 qemu_register_reset(pci_grackle_reset, &s->host_state);
81a322d4 115 return 0;
426f17bb
BS
116}
117
81a322d4 118static int grackle_pci_host_init(PCIDevice *d)
426f17bb 119{
502a5395 120 d->config[0x09] = 0x01;
81a322d4 121 return 0;
426f17bb 122}
502a5395 123
40021f08
AL
124static void grackle_pci_class_init(ObjectClass *klass, void *data)
125{
126 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
127
128 k->init = grackle_pci_host_init;
129 k->vendor_id = PCI_VENDOR_ID_MOTOROLA;
130 k->device_id = PCI_DEVICE_ID_MOTOROLA_MPC106;
131 k->revision = 0x00;
132 k->class_id = PCI_CLASS_BRIDGE_HOST;
133}
134
135static DeviceInfo grackle_pci_info = {
136 .name = "grackle",
137 .size = sizeof(PCIDevice),
138 .no_user = 1,
139 .class_init = grackle_pci_class_init,
426f17bb 140};
6e6b7363 141
0ae46996
AF
142static SysBusDeviceInfo grackle_pci_host_info = {
143 .qdev.name = "grackle-pcihost",
144 .qdev.size = sizeof(GrackleState),
145 .qdev.no_user = 1,
146 .init = pci_grackle_init_device,
147};
148
426f17bb
BS
149static void grackle_register_devices(void)
150{
0ae46996
AF
151 sysbus_register_withprop(&grackle_pci_host_info);
152 pci_qdev_register(&grackle_pci_info);
502a5395 153}
426f17bb
BS
154
155device_init(grackle_register_devices)