root / hw / apb_pci.c @ a245f2e7
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1 | 502a5395 | pbrook | /*
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2 | 502a5395 | pbrook | * QEMU Ultrasparc APB PCI host
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3 | 502a5395 | pbrook | *
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4 | 502a5395 | pbrook | * Copyright (c) 2006 Fabrice Bellard
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5 | 5fafdf24 | ths | *
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6 | 502a5395 | pbrook | * Permission is hereby granted, free of charge, to any person obtaining a copy
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7 | 502a5395 | pbrook | * of this software and associated documentation files (the "Software"), to deal
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8 | 502a5395 | pbrook | * in the Software without restriction, including without limitation the rights
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9 | 502a5395 | pbrook | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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10 | 502a5395 | pbrook | * copies of the Software, and to permit persons to whom the Software is
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11 | 502a5395 | pbrook | * furnished to do so, subject to the following conditions:
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12 | 502a5395 | pbrook | *
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13 | 502a5395 | pbrook | * The above copyright notice and this permission notice shall be included in
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14 | 502a5395 | pbrook | * all copies or substantial portions of the Software.
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15 | 502a5395 | pbrook | *
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16 | 502a5395 | pbrook | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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17 | 502a5395 | pbrook | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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18 | 502a5395 | pbrook | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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19 | 502a5395 | pbrook | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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20 | 502a5395 | pbrook | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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21 | 502a5395 | pbrook | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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22 | 502a5395 | pbrook | * THE SOFTWARE.
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23 | 502a5395 | pbrook | */
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24 | 80b3ada7 | pbrook | |
25 | 80b3ada7 | pbrook | /* XXX This file and most of its contests are somewhat misnamed. The
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26 | 80b3ada7 | pbrook | Ultrasparc PCI host is called the PCI Bus Module (PBM). The APB is
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27 | 80b3ada7 | pbrook | the secondary PCI bridge. */
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28 | 80b3ada7 | pbrook | |
29 | 87ecb68b | pbrook | #include "hw.h" |
30 | 87ecb68b | pbrook | #include "pci.h" |
31 | 502a5395 | pbrook | typedef target_phys_addr_t pci_addr_t;
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32 | 502a5395 | pbrook | #include "pci_host.h" |
33 | 502a5395 | pbrook | |
34 | 502a5395 | pbrook | typedef PCIHostState APBState;
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35 | 502a5395 | pbrook | |
36 | 502a5395 | pbrook | static void pci_apb_config_writel (void *opaque, target_phys_addr_t addr, |
37 | 502a5395 | pbrook | uint32_t val) |
38 | 502a5395 | pbrook | { |
39 | 502a5395 | pbrook | APBState *s = opaque; |
40 | 502a5395 | pbrook | int i;
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41 | 502a5395 | pbrook | |
42 | 502a5395 | pbrook | for (i = 11; i < 32; i++) { |
43 | 502a5395 | pbrook | if ((val & (1 << i)) != 0) |
44 | 502a5395 | pbrook | break;
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45 | 502a5395 | pbrook | } |
46 | 502a5395 | pbrook | s->config_reg = (1 << 16) | (val & 0x7FC) | (i << 11); |
47 | 502a5395 | pbrook | } |
48 | 502a5395 | pbrook | |
49 | 502a5395 | pbrook | static uint32_t pci_apb_config_readl (void *opaque, |
50 | 502a5395 | pbrook | target_phys_addr_t addr) |
51 | 502a5395 | pbrook | { |
52 | 502a5395 | pbrook | APBState *s = opaque; |
53 | 502a5395 | pbrook | uint32_t val; |
54 | 502a5395 | pbrook | int devfn;
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55 | 502a5395 | pbrook | |
56 | 502a5395 | pbrook | devfn = (s->config_reg >> 8) & 0xFF; |
57 | 502a5395 | pbrook | val = (1 << (devfn >> 3)) | ((devfn & 0x07) << 8) | (s->config_reg & 0xFC); |
58 | 502a5395 | pbrook | return val;
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59 | 502a5395 | pbrook | } |
60 | 502a5395 | pbrook | |
61 | 502a5395 | pbrook | static CPUWriteMemoryFunc *pci_apb_config_write[] = {
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62 | 502a5395 | pbrook | &pci_apb_config_writel, |
63 | 502a5395 | pbrook | &pci_apb_config_writel, |
64 | 502a5395 | pbrook | &pci_apb_config_writel, |
65 | 502a5395 | pbrook | }; |
66 | 502a5395 | pbrook | |
67 | 502a5395 | pbrook | static CPUReadMemoryFunc *pci_apb_config_read[] = {
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68 | 502a5395 | pbrook | &pci_apb_config_readl, |
69 | 502a5395 | pbrook | &pci_apb_config_readl, |
70 | 502a5395 | pbrook | &pci_apb_config_readl, |
71 | 502a5395 | pbrook | }; |
72 | 502a5395 | pbrook | |
73 | 502a5395 | pbrook | static void apb_config_writel (void *opaque, target_phys_addr_t addr, |
74 | f930d07e | blueswir1 | uint32_t val) |
75 | 502a5395 | pbrook | { |
76 | 502a5395 | pbrook | //PCIBus *s = opaque;
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77 | 502a5395 | pbrook | |
78 | 502a5395 | pbrook | switch (addr & 0x3f) { |
79 | 502a5395 | pbrook | case 0x00: // Control/Status |
80 | 502a5395 | pbrook | case 0x10: // AFSR |
81 | 502a5395 | pbrook | case 0x18: // AFAR |
82 | 502a5395 | pbrook | case 0x20: // Diagnostic |
83 | 502a5395 | pbrook | case 0x28: // Target address space |
84 | f930d07e | blueswir1 | // XXX
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85 | 502a5395 | pbrook | default:
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86 | f930d07e | blueswir1 | break;
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87 | 502a5395 | pbrook | } |
88 | 502a5395 | pbrook | } |
89 | 502a5395 | pbrook | |
90 | 502a5395 | pbrook | static uint32_t apb_config_readl (void *opaque, |
91 | f930d07e | blueswir1 | target_phys_addr_t addr) |
92 | 502a5395 | pbrook | { |
93 | 502a5395 | pbrook | //PCIBus *s = opaque;
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94 | 502a5395 | pbrook | uint32_t val; |
95 | 502a5395 | pbrook | |
96 | 502a5395 | pbrook | switch (addr & 0x3f) { |
97 | 502a5395 | pbrook | case 0x00: // Control/Status |
98 | 502a5395 | pbrook | case 0x10: // AFSR |
99 | 502a5395 | pbrook | case 0x18: // AFAR |
100 | 502a5395 | pbrook | case 0x20: // Diagnostic |
101 | 502a5395 | pbrook | case 0x28: // Target address space |
102 | f930d07e | blueswir1 | // XXX
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103 | 502a5395 | pbrook | default:
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104 | f930d07e | blueswir1 | val = 0;
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105 | f930d07e | blueswir1 | break;
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106 | 502a5395 | pbrook | } |
107 | 502a5395 | pbrook | return val;
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108 | 502a5395 | pbrook | } |
109 | 502a5395 | pbrook | |
110 | 502a5395 | pbrook | static CPUWriteMemoryFunc *apb_config_write[] = {
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111 | 502a5395 | pbrook | &apb_config_writel, |
112 | 502a5395 | pbrook | &apb_config_writel, |
113 | 502a5395 | pbrook | &apb_config_writel, |
114 | 502a5395 | pbrook | }; |
115 | 502a5395 | pbrook | |
116 | 502a5395 | pbrook | static CPUReadMemoryFunc *apb_config_read[] = {
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117 | 502a5395 | pbrook | &apb_config_readl, |
118 | 502a5395 | pbrook | &apb_config_readl, |
119 | 502a5395 | pbrook | &apb_config_readl, |
120 | 502a5395 | pbrook | }; |
121 | 502a5395 | pbrook | |
122 | 502a5395 | pbrook | static CPUWriteMemoryFunc *pci_apb_write[] = {
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123 | 502a5395 | pbrook | &pci_host_data_writeb, |
124 | 502a5395 | pbrook | &pci_host_data_writew, |
125 | 502a5395 | pbrook | &pci_host_data_writel, |
126 | 502a5395 | pbrook | }; |
127 | 502a5395 | pbrook | |
128 | 502a5395 | pbrook | static CPUReadMemoryFunc *pci_apb_read[] = {
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129 | 502a5395 | pbrook | &pci_host_data_readb, |
130 | 502a5395 | pbrook | &pci_host_data_readw, |
131 | 502a5395 | pbrook | &pci_host_data_readl, |
132 | 502a5395 | pbrook | }; |
133 | 502a5395 | pbrook | |
134 | 502a5395 | pbrook | static void pci_apb_iowriteb (void *opaque, target_phys_addr_t addr, |
135 | 502a5395 | pbrook | uint32_t val) |
136 | 502a5395 | pbrook | { |
137 | 502a5395 | pbrook | cpu_outb(NULL, addr & 0xffff, val); |
138 | 502a5395 | pbrook | } |
139 | 502a5395 | pbrook | |
140 | 502a5395 | pbrook | static void pci_apb_iowritew (void *opaque, target_phys_addr_t addr, |
141 | 502a5395 | pbrook | uint32_t val) |
142 | 502a5395 | pbrook | { |
143 | 502a5395 | pbrook | cpu_outw(NULL, addr & 0xffff, val); |
144 | 502a5395 | pbrook | } |
145 | 502a5395 | pbrook | |
146 | 502a5395 | pbrook | static void pci_apb_iowritel (void *opaque, target_phys_addr_t addr, |
147 | 502a5395 | pbrook | uint32_t val) |
148 | 502a5395 | pbrook | { |
149 | 502a5395 | pbrook | cpu_outl(NULL, addr & 0xffff, val); |
150 | 502a5395 | pbrook | } |
151 | 502a5395 | pbrook | |
152 | 502a5395 | pbrook | static uint32_t pci_apb_ioreadb (void *opaque, target_phys_addr_t addr) |
153 | 502a5395 | pbrook | { |
154 | 502a5395 | pbrook | uint32_t val; |
155 | 502a5395 | pbrook | |
156 | 502a5395 | pbrook | val = cpu_inb(NULL, addr & 0xffff); |
157 | 502a5395 | pbrook | return val;
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158 | 502a5395 | pbrook | } |
159 | 502a5395 | pbrook | |
160 | 502a5395 | pbrook | static uint32_t pci_apb_ioreadw (void *opaque, target_phys_addr_t addr) |
161 | 502a5395 | pbrook | { |
162 | 502a5395 | pbrook | uint32_t val; |
163 | 502a5395 | pbrook | |
164 | 502a5395 | pbrook | val = cpu_inw(NULL, addr & 0xffff); |
165 | 502a5395 | pbrook | return val;
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166 | 502a5395 | pbrook | } |
167 | 502a5395 | pbrook | |
168 | 502a5395 | pbrook | static uint32_t pci_apb_ioreadl (void *opaque, target_phys_addr_t addr) |
169 | 502a5395 | pbrook | { |
170 | 502a5395 | pbrook | uint32_t val; |
171 | 502a5395 | pbrook | |
172 | 502a5395 | pbrook | val = cpu_inl(NULL, addr & 0xffff); |
173 | 502a5395 | pbrook | return val;
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174 | 502a5395 | pbrook | } |
175 | 502a5395 | pbrook | |
176 | 502a5395 | pbrook | static CPUWriteMemoryFunc *pci_apb_iowrite[] = {
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177 | 502a5395 | pbrook | &pci_apb_iowriteb, |
178 | 502a5395 | pbrook | &pci_apb_iowritew, |
179 | 502a5395 | pbrook | &pci_apb_iowritel, |
180 | 502a5395 | pbrook | }; |
181 | 502a5395 | pbrook | |
182 | 502a5395 | pbrook | static CPUReadMemoryFunc *pci_apb_ioread[] = {
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183 | 502a5395 | pbrook | &pci_apb_ioreadb, |
184 | 502a5395 | pbrook | &pci_apb_ioreadw, |
185 | 502a5395 | pbrook | &pci_apb_ioreadl, |
186 | 502a5395 | pbrook | }; |
187 | 502a5395 | pbrook | |
188 | 80b3ada7 | pbrook | /* The APB host has an IRQ line for each IRQ line of each slot. */
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189 | d2b59317 | pbrook | static int pci_apb_map_irq(PCIDevice *pci_dev, int irq_num) |
190 | 502a5395 | pbrook | { |
191 | 80b3ada7 | pbrook | return ((pci_dev->devfn & 0x18) >> 1) + irq_num; |
192 | 80b3ada7 | pbrook | } |
193 | 80b3ada7 | pbrook | |
194 | 80b3ada7 | pbrook | static int pci_pbm_map_irq(PCIDevice *pci_dev, int irq_num) |
195 | 80b3ada7 | pbrook | { |
196 | 80b3ada7 | pbrook | int bus_offset;
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197 | 80b3ada7 | pbrook | if (pci_dev->devfn & 1) |
198 | 80b3ada7 | pbrook | bus_offset = 16;
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199 | 80b3ada7 | pbrook | else
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200 | 80b3ada7 | pbrook | bus_offset = 0;
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201 | 80b3ada7 | pbrook | return bus_offset + irq_num;
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202 | d2b59317 | pbrook | } |
203 | d2b59317 | pbrook | |
204 | d537cf6c | pbrook | static void pci_apb_set_irq(qemu_irq *pic, int irq_num, int level) |
205 | d2b59317 | pbrook | { |
206 | 80b3ada7 | pbrook | /* PCI IRQ map onto the first 32 INO. */
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207 | d537cf6c | pbrook | qemu_set_irq(pic[irq_num], level); |
208 | 502a5395 | pbrook | } |
209 | 502a5395 | pbrook | |
210 | fdf41d22 | blueswir1 | PCIBus *pci_apb_init(target_phys_addr_t special_base, |
211 | fdf41d22 | blueswir1 | target_phys_addr_t mem_base, |
212 | d537cf6c | pbrook | qemu_irq *pic) |
213 | 502a5395 | pbrook | { |
214 | 502a5395 | pbrook | APBState *s; |
215 | 502a5395 | pbrook | PCIDevice *d; |
216 | 502a5395 | pbrook | int pci_mem_config, pci_mem_data, apb_config, pci_ioport;
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217 | 80b3ada7 | pbrook | PCIBus *secondary; |
218 | 502a5395 | pbrook | |
219 | 502a5395 | pbrook | s = qemu_mallocz(sizeof(APBState));
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220 | 80b3ada7 | pbrook | /* Ultrasparc PBM main bus */
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221 | 80b3ada7 | pbrook | s->bus = pci_register_bus(pci_apb_set_irq, pci_pbm_map_irq, pic, 0, 32); |
222 | 502a5395 | pbrook | |
223 | 502a5395 | pbrook | pci_mem_config = cpu_register_io_memory(0, pci_apb_config_read,
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224 | 502a5395 | pbrook | pci_apb_config_write, s); |
225 | 502a5395 | pbrook | apb_config = cpu_register_io_memory(0, apb_config_read,
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226 | f930d07e | blueswir1 | apb_config_write, s); |
227 | 502a5395 | pbrook | pci_mem_data = cpu_register_io_memory(0, pci_apb_read,
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228 | 502a5395 | pbrook | pci_apb_write, s); |
229 | 502a5395 | pbrook | pci_ioport = cpu_register_io_memory(0, pci_apb_ioread,
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230 | 502a5395 | pbrook | pci_apb_iowrite, s); |
231 | 502a5395 | pbrook | |
232 | 502a5395 | pbrook | cpu_register_physical_memory(special_base + 0x2000ULL, 0x40, apb_config); |
233 | 77f193da | blueswir1 | cpu_register_physical_memory(special_base + 0x1000000ULL, 0x10, |
234 | 77f193da | blueswir1 | pci_mem_config); |
235 | 77f193da | blueswir1 | cpu_register_physical_memory(special_base + 0x2000000ULL, 0x10000, |
236 | 77f193da | blueswir1 | pci_ioport); |
237 | 77f193da | blueswir1 | cpu_register_physical_memory(mem_base, 0x10000000,
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238 | 77f193da | blueswir1 | pci_mem_data); // XXX size should be 4G-prom
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239 | 502a5395 | pbrook | |
240 | 5fafdf24 | ths | d = pci_register_device(s->bus, "Advanced PCI Bus", sizeof(PCIDevice), |
241 | 80b3ada7 | pbrook | 0, NULL, NULL); |
242 | 502a5395 | pbrook | d->config[0x00] = 0x8e; // vendor_id : Sun |
243 | 502a5395 | pbrook | d->config[0x01] = 0x10; |
244 | 502a5395 | pbrook | d->config[0x02] = 0x00; // device_id |
245 | 502a5395 | pbrook | d->config[0x03] = 0xa0; |
246 | 502a5395 | pbrook | d->config[0x04] = 0x06; // command = bus master, pci mem |
247 | 502a5395 | pbrook | d->config[0x05] = 0x00; |
248 | 502a5395 | pbrook | d->config[0x06] = 0xa0; // status = fast back-to-back, 66MHz, no error |
249 | 502a5395 | pbrook | d->config[0x07] = 0x03; // status = medium devsel |
250 | 502a5395 | pbrook | d->config[0x08] = 0x00; // revision |
251 | 502a5395 | pbrook | d->config[0x09] = 0x00; // programming i/f |
252 | 502a5395 | pbrook | d->config[0x0A] = 0x00; // class_sub = pci host |
253 | 502a5395 | pbrook | d->config[0x0B] = 0x06; // class_base = PCI_bridge |
254 | 502a5395 | pbrook | d->config[0x0D] = 0x10; // latency_timer |
255 | 502a5395 | pbrook | d->config[0x0E] = 0x00; // header_type |
256 | 80b3ada7 | pbrook | |
257 | 80b3ada7 | pbrook | /* APB secondary busses */
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258 | 77f193da | blueswir1 | secondary = pci_bridge_init(s->bus, 8, 0x108e5000, pci_apb_map_irq, |
259 | 77f193da | blueswir1 | "Advanced PCI Bus secondary bridge 1");
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260 | 77f193da | blueswir1 | pci_bridge_init(s->bus, 9, 0x108e5000, pci_apb_map_irq, |
261 | 77f193da | blueswir1 | "Advanced PCI Bus secondary bridge 2");
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262 | 80b3ada7 | pbrook | return secondary;
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263 | 502a5395 | pbrook | } |
264 | 502a5395 | pbrook |