root / hw / versatile_pci.c @ c09015dd
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1 | 5fafdf24 | ths | /*
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2 | 502a5395 | pbrook | * ARM Versatile/PB PCI host controller
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3 | 502a5395 | pbrook | *
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4 | 0027b06d | Paul Brook | * Copyright (c) 2006-2009 CodeSourcery.
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5 | 502a5395 | pbrook | * Written by Paul Brook
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6 | 502a5395 | pbrook | *
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7 | 8e31bf38 | Matthew Fernandez | * This code is licensed under the LGPL.
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8 | 502a5395 | pbrook | */
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9 | 502a5395 | pbrook | |
10 | 0027b06d | Paul Brook | #include "sysbus.h" |
11 | 87ecb68b | pbrook | #include "pci.h" |
12 | b6243d99 | Isaku Yamahata | #include "pci_host.h" |
13 | 1e39101c | Avi Kivity | #include "exec-memory.h" |
14 | 0027b06d | Paul Brook | |
15 | 0027b06d | Paul Brook | typedef struct { |
16 | 0027b06d | Paul Brook | SysBusDevice busdev; |
17 | 0027b06d | Paul Brook | qemu_irq irq[4];
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18 | 0027b06d | Paul Brook | int realview;
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19 | 45de094e | Avi Kivity | MemoryRegion mem_config; |
20 | 45de094e | Avi Kivity | MemoryRegion mem_config2; |
21 | 45de094e | Avi Kivity | MemoryRegion isa; |
22 | 0027b06d | Paul Brook | } PCIVPBState; |
23 | 502a5395 | pbrook | |
24 | c227f099 | Anthony Liguori | static inline uint32_t vpb_pci_config_addr(target_phys_addr_t addr) |
25 | 502a5395 | pbrook | { |
26 | 80b3ada7 | pbrook | return addr & 0xffffff; |
27 | 502a5395 | pbrook | } |
28 | 502a5395 | pbrook | |
29 | 45de094e | Avi Kivity | static void pci_vpb_config_write(void *opaque, target_phys_addr_t addr, |
30 | 45de094e | Avi Kivity | uint64_t val, unsigned size)
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31 | 502a5395 | pbrook | { |
32 | 45de094e | Avi Kivity | pci_data_write(opaque, vpb_pci_config_addr(addr), val, size); |
33 | 502a5395 | pbrook | } |
34 | 502a5395 | pbrook | |
35 | 45de094e | Avi Kivity | static uint64_t pci_vpb_config_read(void *opaque, target_phys_addr_t addr, |
36 | 45de094e | Avi Kivity | unsigned size)
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37 | 502a5395 | pbrook | { |
38 | 502a5395 | pbrook | uint32_t val; |
39 | 45de094e | Avi Kivity | val = pci_data_read(opaque, vpb_pci_config_addr(addr), size); |
40 | 502a5395 | pbrook | return val;
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41 | 502a5395 | pbrook | } |
42 | 502a5395 | pbrook | |
43 | 45de094e | Avi Kivity | static const MemoryRegionOps pci_vpb_config_ops = { |
44 | 45de094e | Avi Kivity | .read = pci_vpb_config_read, |
45 | 45de094e | Avi Kivity | .write = pci_vpb_config_write, |
46 | 45de094e | Avi Kivity | .endianness = DEVICE_NATIVE_ENDIAN, |
47 | 502a5395 | pbrook | }; |
48 | 502a5395 | pbrook | |
49 | d2b59317 | pbrook | static int pci_vpb_map_irq(PCIDevice *d, int irq_num) |
50 | d2b59317 | pbrook | { |
51 | d2b59317 | pbrook | return irq_num;
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52 | d2b59317 | pbrook | } |
53 | d2b59317 | pbrook | |
54 | 5d4e84c8 | Juan Quintela | static void pci_vpb_set_irq(void *opaque, int irq_num, int level) |
55 | 502a5395 | pbrook | { |
56 | 5d4e84c8 | Juan Quintela | qemu_irq *pic = opaque; |
57 | 5d4e84c8 | Juan Quintela | |
58 | 97aff481 | Paul Brook | qemu_set_irq(pic[irq_num], level); |
59 | 502a5395 | pbrook | } |
60 | 502a5395 | pbrook | |
61 | 81a322d4 | Gerd Hoffmann | static int pci_vpb_init(SysBusDevice *dev) |
62 | 0027b06d | Paul Brook | { |
63 | 0027b06d | Paul Brook | PCIVPBState *s = FROM_SYSBUS(PCIVPBState, dev); |
64 | 0027b06d | Paul Brook | PCIBus *bus; |
65 | 97aff481 | Paul Brook | int i;
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66 | e69954b9 | pbrook | |
67 | 97aff481 | Paul Brook | for (i = 0; i < 4; i++) { |
68 | 0027b06d | Paul Brook | sysbus_init_irq(dev, &s->irq[i]); |
69 | e69954b9 | pbrook | } |
70 | 02e2da45 | Paul Brook | bus = pci_register_bus(&dev->qdev, "pci",
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71 | 02e2da45 | Paul Brook | pci_vpb_set_irq, pci_vpb_map_irq, s->irq, |
72 | aee97b84 | Avi Kivity | get_system_memory(), get_system_io(), |
73 | 520128bd | Isaku Yamahata | PCI_DEVFN(11, 0), 4); |
74 | 0027b06d | Paul Brook | |
75 | 502a5395 | pbrook | /* ??? Register memory space. */
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76 | 502a5395 | pbrook | |
77 | 7d6e771f | Peter Maydell | /* Our memory regions are:
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78 | 7d6e771f | Peter Maydell | * 0 : PCI self config window
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79 | 7d6e771f | Peter Maydell | * 1 : PCI config window
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80 | 7d6e771f | Peter Maydell | * 2 : PCI IO window (realview_pci only)
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81 | 7d6e771f | Peter Maydell | */
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82 | 45de094e | Avi Kivity | memory_region_init_io(&s->mem_config, &pci_vpb_config_ops, bus, |
83 | 45de094e | Avi Kivity | "pci-vpb-selfconfig", 0x1000000); |
84 | 750ecd44 | Avi Kivity | sysbus_init_mmio(dev, &s->mem_config); |
85 | 45de094e | Avi Kivity | memory_region_init_io(&s->mem_config2, &pci_vpb_config_ops, bus, |
86 | 45de094e | Avi Kivity | "pci-vpb-config", 0x1000000); |
87 | 750ecd44 | Avi Kivity | sysbus_init_mmio(dev, &s->mem_config2); |
88 | 45de094e | Avi Kivity | if (s->realview) {
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89 | 45de094e | Avi Kivity | isa_mmio_setup(&s->isa, 0x0100000);
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90 | 750ecd44 | Avi Kivity | sysbus_init_mmio(dev, &s->isa); |
91 | 45de094e | Avi Kivity | } |
92 | 45de094e | Avi Kivity | |
93 | 0027b06d | Paul Brook | pci_create_simple(bus, -1, "versatile_pci_host"); |
94 | 81a322d4 | Gerd Hoffmann | return 0; |
95 | 0027b06d | Paul Brook | } |
96 | e69954b9 | pbrook | |
97 | 81a322d4 | Gerd Hoffmann | static int pci_realview_init(SysBusDevice *dev) |
98 | 0027b06d | Paul Brook | { |
99 | 0027b06d | Paul Brook | PCIVPBState *s = FROM_SYSBUS(PCIVPBState, dev); |
100 | 0027b06d | Paul Brook | s->realview = 1;
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101 | 81a322d4 | Gerd Hoffmann | return pci_vpb_init(dev);
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102 | 0027b06d | Paul Brook | } |
103 | 502a5395 | pbrook | |
104 | 81a322d4 | Gerd Hoffmann | static int versatile_pci_host_init(PCIDevice *d) |
105 | 0027b06d | Paul Brook | { |
106 | a408b1de | Michael S. Tsirkin | pci_set_word(d->config + PCI_STATUS, |
107 | a408b1de | Michael S. Tsirkin | PCI_STATUS_66MHZ | PCI_STATUS_DEVSEL_MEDIUM); |
108 | 01764fe0 | Michael S. Tsirkin | pci_set_byte(d->config + PCI_LATENCY_TIMER, 0x10);
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109 | 81a322d4 | Gerd Hoffmann | return 0; |
110 | 0027b06d | Paul Brook | } |
111 | 502a5395 | pbrook | |
112 | 0aab0d3a | Gerd Hoffmann | static PCIDeviceInfo versatile_pci_host_info = {
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113 | 0aab0d3a | Gerd Hoffmann | .qdev.name = "versatile_pci_host",
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114 | 0aab0d3a | Gerd Hoffmann | .qdev.size = sizeof(PCIDevice),
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115 | 0aab0d3a | Gerd Hoffmann | .init = versatile_pci_host_init, |
116 | 56fe6408 | Isaku Yamahata | .vendor_id = PCI_VENDOR_ID_XILINX, |
117 | 56fe6408 | Isaku Yamahata | /* Both boards have the same device ID. Oh well. */
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118 | 56fe6408 | Isaku Yamahata | .device_id = PCI_DEVICE_ID_XILINX_XC2VP30, |
119 | 56fe6408 | Isaku Yamahata | .class_id = PCI_CLASS_PROCESSOR_CO, |
120 | 0aab0d3a | Gerd Hoffmann | }; |
121 | 0aab0d3a | Gerd Hoffmann | |
122 | 0027b06d | Paul Brook | static void versatile_pci_register_devices(void) |
123 | 0027b06d | Paul Brook | { |
124 | 0027b06d | Paul Brook | sysbus_register_dev("versatile_pci", sizeof(PCIVPBState), pci_vpb_init); |
125 | 0027b06d | Paul Brook | sysbus_register_dev("realview_pci", sizeof(PCIVPBState), |
126 | 0027b06d | Paul Brook | pci_realview_init); |
127 | 0aab0d3a | Gerd Hoffmann | pci_qdev_register(&versatile_pci_host_info); |
128 | 502a5395 | pbrook | } |
129 | 0027b06d | Paul Brook | |
130 | 0027b06d | Paul Brook | device_init(versatile_pci_register_devices) |