]>
Commit | Line | Data |
---|---|---|
74c62ba8 AJ |
1 | /* |
2 | * QEMU PowerPC E500 embedded processors pci controller emulation | |
3 | * | |
4 | * Copyright (C) 2009 Freescale Semiconductor, Inc. All rights reserved. | |
5 | * | |
6 | * Author: Yu Liu, <[email protected]> | |
7 | * | |
8 | * This file is derived from hw/ppc4xx_pci.c, | |
9 | * the copyright for that material belongs to the original owners. | |
10 | * | |
11 | * This is free software; you can redistribute it and/or modify | |
12 | * it under the terms of the GNU General Public License as published by | |
13 | * the Free Software Foundation; either version 2 of the License, or | |
14 | * (at your option) any later version. | |
15 | */ | |
16 | ||
17 | #include "hw.h" | |
74c62ba8 AJ |
18 | #include "pci.h" |
19 | #include "pci_host.h" | |
20 | #include "bswap.h" | |
74c62ba8 AJ |
21 | |
22 | #ifdef DEBUG_PCI | |
001faf32 | 23 | #define pci_debug(fmt, ...) fprintf(stderr, fmt, ## __VA_ARGS__) |
74c62ba8 | 24 | #else |
001faf32 | 25 | #define pci_debug(fmt, ...) |
74c62ba8 AJ |
26 | #endif |
27 | ||
28 | #define PCIE500_CFGADDR 0x0 | |
29 | #define PCIE500_CFGDATA 0x4 | |
30 | #define PCIE500_REG_BASE 0xC00 | |
be13cc7a AG |
31 | #define PCIE500_ALL_SIZE 0x1000 |
32 | #define PCIE500_REG_SIZE (PCIE500_ALL_SIZE - PCIE500_REG_BASE) | |
74c62ba8 AJ |
33 | |
34 | #define PPCE500_PCI_CONFIG_ADDR 0x0 | |
35 | #define PPCE500_PCI_CONFIG_DATA 0x4 | |
36 | #define PPCE500_PCI_INTACK 0x8 | |
37 | ||
38 | #define PPCE500_PCI_OW1 (0xC20 - PCIE500_REG_BASE) | |
39 | #define PPCE500_PCI_OW2 (0xC40 - PCIE500_REG_BASE) | |
40 | #define PPCE500_PCI_OW3 (0xC60 - PCIE500_REG_BASE) | |
41 | #define PPCE500_PCI_OW4 (0xC80 - PCIE500_REG_BASE) | |
42 | #define PPCE500_PCI_IW3 (0xDA0 - PCIE500_REG_BASE) | |
43 | #define PPCE500_PCI_IW2 (0xDC0 - PCIE500_REG_BASE) | |
44 | #define PPCE500_PCI_IW1 (0xDE0 - PCIE500_REG_BASE) | |
45 | ||
46 | #define PPCE500_PCI_GASKET_TIMR (0xE20 - PCIE500_REG_BASE) | |
47 | ||
48 | #define PCI_POTAR 0x0 | |
49 | #define PCI_POTEAR 0x4 | |
50 | #define PCI_POWBAR 0x8 | |
51 | #define PCI_POWAR 0x10 | |
52 | ||
53 | #define PCI_PITAR 0x0 | |
54 | #define PCI_PIWBAR 0x8 | |
55 | #define PCI_PIWBEAR 0xC | |
56 | #define PCI_PIWAR 0x10 | |
57 | ||
58 | #define PPCE500_PCI_NR_POBS 5 | |
59 | #define PPCE500_PCI_NR_PIBS 3 | |
60 | ||
61 | struct pci_outbound { | |
62 | uint32_t potar; | |
63 | uint32_t potear; | |
64 | uint32_t powbar; | |
65 | uint32_t powar; | |
66 | }; | |
67 | ||
68 | struct pci_inbound { | |
69 | uint32_t pitar; | |
70 | uint32_t piwbar; | |
71 | uint32_t piwbear; | |
72 | uint32_t piwar; | |
73 | }; | |
74 | ||
9c1a61f0 AF |
75 | #define TYPE_PPC_E500_PCI_HOST_BRIDGE "e500-pcihost" |
76 | ||
77 | #define PPC_E500_PCI_HOST_BRIDGE(obj) \ | |
78 | OBJECT_CHECK(PPCE500PCIState, (obj), TYPE_PPC_E500_PCI_HOST_BRIDGE) | |
79 | ||
74c62ba8 | 80 | struct PPCE500PCIState { |
67c332fd | 81 | PCIHostState parent_obj; |
9c1a61f0 | 82 | |
74c62ba8 AJ |
83 | struct pci_outbound pob[PPCE500_PCI_NR_POBS]; |
84 | struct pci_inbound pib[PPCE500_PCI_NR_PIBS]; | |
85 | uint32_t gasket_time; | |
be13cc7a AG |
86 | qemu_irq irq[4]; |
87 | /* mmio maps */ | |
cb4e15c7 | 88 | MemoryRegion container; |
cd5cba79 | 89 | MemoryRegion iomem; |
74c62ba8 AJ |
90 | }; |
91 | ||
92 | typedef struct PPCE500PCIState PPCE500PCIState; | |
93 | ||
cd5cba79 AK |
94 | static uint64_t pci_reg_read4(void *opaque, target_phys_addr_t addr, |
95 | unsigned size) | |
74c62ba8 AJ |
96 | { |
97 | PPCE500PCIState *pci = opaque; | |
98 | unsigned long win; | |
99 | uint32_t value = 0; | |
eeae2e7b | 100 | int idx; |
74c62ba8 AJ |
101 | |
102 | win = addr & 0xfe0; | |
103 | ||
104 | switch (win) { | |
105 | case PPCE500_PCI_OW1: | |
106 | case PPCE500_PCI_OW2: | |
107 | case PPCE500_PCI_OW3: | |
108 | case PPCE500_PCI_OW4: | |
eeae2e7b | 109 | idx = (addr >> 5) & 0x7; |
74c62ba8 | 110 | switch (addr & 0xC) { |
6875dc8e | 111 | case PCI_POTAR: |
eeae2e7b | 112 | value = pci->pob[idx].potar; |
6875dc8e LY |
113 | break; |
114 | case PCI_POTEAR: | |
eeae2e7b | 115 | value = pci->pob[idx].potear; |
6875dc8e LY |
116 | break; |
117 | case PCI_POWBAR: | |
eeae2e7b | 118 | value = pci->pob[idx].powbar; |
6875dc8e LY |
119 | break; |
120 | case PCI_POWAR: | |
eeae2e7b | 121 | value = pci->pob[idx].powar; |
6875dc8e LY |
122 | break; |
123 | default: | |
124 | break; | |
74c62ba8 AJ |
125 | } |
126 | break; | |
127 | ||
128 | case PPCE500_PCI_IW3: | |
129 | case PPCE500_PCI_IW2: | |
130 | case PPCE500_PCI_IW1: | |
eeae2e7b | 131 | idx = ((addr >> 5) & 0x3) - 1; |
74c62ba8 | 132 | switch (addr & 0xC) { |
6875dc8e | 133 | case PCI_PITAR: |
eeae2e7b | 134 | value = pci->pib[idx].pitar; |
6875dc8e LY |
135 | break; |
136 | case PCI_PIWBAR: | |
eeae2e7b | 137 | value = pci->pib[idx].piwbar; |
6875dc8e LY |
138 | break; |
139 | case PCI_PIWBEAR: | |
eeae2e7b | 140 | value = pci->pib[idx].piwbear; |
6875dc8e LY |
141 | break; |
142 | case PCI_PIWAR: | |
eeae2e7b | 143 | value = pci->pib[idx].piwar; |
6875dc8e LY |
144 | break; |
145 | default: | |
146 | break; | |
74c62ba8 AJ |
147 | }; |
148 | break; | |
149 | ||
150 | case PPCE500_PCI_GASKET_TIMR: | |
151 | value = pci->gasket_time; | |
152 | break; | |
153 | ||
154 | default: | |
155 | break; | |
156 | } | |
157 | ||
c0a2a096 BS |
158 | pci_debug("%s: win:%lx(addr:" TARGET_FMT_plx ") -> value:%x\n", __func__, |
159 | win, addr, value); | |
74c62ba8 AJ |
160 | return value; |
161 | } | |
162 | ||
c227f099 | 163 | static void pci_reg_write4(void *opaque, target_phys_addr_t addr, |
cd5cba79 | 164 | uint64_t value, unsigned size) |
74c62ba8 AJ |
165 | { |
166 | PPCE500PCIState *pci = opaque; | |
167 | unsigned long win; | |
eeae2e7b | 168 | int idx; |
74c62ba8 AJ |
169 | |
170 | win = addr & 0xfe0; | |
171 | ||
c0a2a096 | 172 | pci_debug("%s: value:%x -> win:%lx(addr:" TARGET_FMT_plx ")\n", |
cd5cba79 | 173 | __func__, (unsigned)value, win, addr); |
74c62ba8 AJ |
174 | |
175 | switch (win) { | |
176 | case PPCE500_PCI_OW1: | |
177 | case PPCE500_PCI_OW2: | |
178 | case PPCE500_PCI_OW3: | |
179 | case PPCE500_PCI_OW4: | |
eeae2e7b | 180 | idx = (addr >> 5) & 0x7; |
74c62ba8 | 181 | switch (addr & 0xC) { |
6875dc8e | 182 | case PCI_POTAR: |
eeae2e7b | 183 | pci->pob[idx].potar = value; |
6875dc8e LY |
184 | break; |
185 | case PCI_POTEAR: | |
eeae2e7b | 186 | pci->pob[idx].potear = value; |
6875dc8e LY |
187 | break; |
188 | case PCI_POWBAR: | |
eeae2e7b | 189 | pci->pob[idx].powbar = value; |
6875dc8e LY |
190 | break; |
191 | case PCI_POWAR: | |
eeae2e7b | 192 | pci->pob[idx].powar = value; |
6875dc8e LY |
193 | break; |
194 | default: | |
195 | break; | |
74c62ba8 AJ |
196 | }; |
197 | break; | |
198 | ||
199 | case PPCE500_PCI_IW3: | |
200 | case PPCE500_PCI_IW2: | |
201 | case PPCE500_PCI_IW1: | |
eeae2e7b | 202 | idx = ((addr >> 5) & 0x3) - 1; |
74c62ba8 | 203 | switch (addr & 0xC) { |
6875dc8e | 204 | case PCI_PITAR: |
eeae2e7b | 205 | pci->pib[idx].pitar = value; |
6875dc8e LY |
206 | break; |
207 | case PCI_PIWBAR: | |
eeae2e7b | 208 | pci->pib[idx].piwbar = value; |
6875dc8e LY |
209 | break; |
210 | case PCI_PIWBEAR: | |
eeae2e7b | 211 | pci->pib[idx].piwbear = value; |
6875dc8e LY |
212 | break; |
213 | case PCI_PIWAR: | |
eeae2e7b | 214 | pci->pib[idx].piwar = value; |
6875dc8e LY |
215 | break; |
216 | default: | |
217 | break; | |
74c62ba8 AJ |
218 | }; |
219 | break; | |
220 | ||
221 | case PPCE500_PCI_GASKET_TIMR: | |
222 | pci->gasket_time = value; | |
223 | break; | |
224 | ||
225 | default: | |
226 | break; | |
227 | }; | |
228 | } | |
229 | ||
cd5cba79 AK |
230 | static const MemoryRegionOps e500_pci_reg_ops = { |
231 | .read = pci_reg_read4, | |
232 | .write = pci_reg_write4, | |
233 | .endianness = DEVICE_BIG_ENDIAN, | |
74c62ba8 AJ |
234 | }; |
235 | ||
236 | static int mpc85xx_pci_map_irq(PCIDevice *pci_dev, int irq_num) | |
237 | { | |
238 | int devno = pci_dev->devfn >> 3, ret = 0; | |
239 | ||
240 | switch (devno) { | |
241 | /* Two PCI slot */ | |
242 | case 0x11: | |
243 | case 0x12: | |
244 | ret = (irq_num + devno - 0x10) % 4; | |
245 | break; | |
246 | default: | |
72b310e9 | 247 | printf("Error:%s:unknown dev number\n", __func__); |
74c62ba8 AJ |
248 | } |
249 | ||
250 | pci_debug("%s: devfn %x irq %d -> %d devno:%x\n", __func__, | |
251 | pci_dev->devfn, irq_num, ret, devno); | |
252 | ||
253 | return ret; | |
254 | } | |
255 | ||
5d4e84c8 | 256 | static void mpc85xx_pci_set_irq(void *opaque, int irq_num, int level) |
74c62ba8 | 257 | { |
5d4e84c8 JQ |
258 | qemu_irq *pic = opaque; |
259 | ||
74c62ba8 AJ |
260 | pci_debug("%s: PCI irq %d, level:%d\n", __func__, irq_num, level); |
261 | ||
262 | qemu_set_irq(pic[irq_num], level); | |
263 | } | |
264 | ||
e0433ecc JQ |
265 | static const VMStateDescription vmstate_pci_outbound = { |
266 | .name = "pci_outbound", | |
267 | .version_id = 0, | |
268 | .minimum_version_id = 0, | |
269 | .minimum_version_id_old = 0, | |
270 | .fields = (VMStateField[]) { | |
271 | VMSTATE_UINT32(potar, struct pci_outbound), | |
272 | VMSTATE_UINT32(potear, struct pci_outbound), | |
273 | VMSTATE_UINT32(powbar, struct pci_outbound), | |
274 | VMSTATE_UINT32(powar, struct pci_outbound), | |
275 | VMSTATE_END_OF_LIST() | |
74c62ba8 | 276 | } |
e0433ecc | 277 | }; |
74c62ba8 | 278 | |
e0433ecc JQ |
279 | static const VMStateDescription vmstate_pci_inbound = { |
280 | .name = "pci_inbound", | |
281 | .version_id = 0, | |
282 | .minimum_version_id = 0, | |
283 | .minimum_version_id_old = 0, | |
284 | .fields = (VMStateField[]) { | |
285 | VMSTATE_UINT32(pitar, struct pci_inbound), | |
286 | VMSTATE_UINT32(piwbar, struct pci_inbound), | |
287 | VMSTATE_UINT32(piwbear, struct pci_inbound), | |
288 | VMSTATE_UINT32(piwar, struct pci_inbound), | |
289 | VMSTATE_END_OF_LIST() | |
74c62ba8 | 290 | } |
e0433ecc | 291 | }; |
74c62ba8 | 292 | |
e0433ecc JQ |
293 | static const VMStateDescription vmstate_ppce500_pci = { |
294 | .name = "ppce500_pci", | |
295 | .version_id = 1, | |
296 | .minimum_version_id = 1, | |
297 | .minimum_version_id_old = 1, | |
298 | .fields = (VMStateField[]) { | |
e0433ecc JQ |
299 | VMSTATE_STRUCT_ARRAY(pob, PPCE500PCIState, PPCE500_PCI_NR_POBS, 1, |
300 | vmstate_pci_outbound, struct pci_outbound), | |
301 | VMSTATE_STRUCT_ARRAY(pib, PPCE500PCIState, PPCE500_PCI_NR_PIBS, 1, | |
302 | vmstate_pci_outbound, struct pci_inbound), | |
303 | VMSTATE_UINT32(gasket_time, PPCE500PCIState), | |
304 | VMSTATE_END_OF_LIST() | |
74c62ba8 | 305 | } |
e0433ecc | 306 | }; |
74c62ba8 | 307 | |
1e39101c AK |
308 | #include "exec-memory.h" |
309 | ||
be13cc7a AG |
310 | static int e500_pcihost_initfn(SysBusDevice *dev) |
311 | { | |
312 | PCIHostState *h; | |
313 | PPCE500PCIState *s; | |
314 | PCIBus *b; | |
315 | int i; | |
aee97b84 AK |
316 | MemoryRegion *address_space_mem = get_system_memory(); |
317 | MemoryRegion *address_space_io = get_system_io(); | |
be13cc7a | 318 | |
8558d942 | 319 | h = PCI_HOST_BRIDGE(dev); |
9c1a61f0 | 320 | s = PPC_E500_PCI_HOST_BRIDGE(dev); |
be13cc7a AG |
321 | |
322 | for (i = 0; i < ARRAY_SIZE(s->irq); i++) { | |
323 | sysbus_init_irq(dev, &s->irq[i]); | |
324 | } | |
325 | ||
9c1a61f0 | 326 | b = pci_register_bus(DEVICE(dev), NULL, mpc85xx_pci_set_irq, |
aee97b84 AK |
327 | mpc85xx_pci_map_irq, s->irq, address_space_mem, |
328 | address_space_io, PCI_DEVFN(0x11, 0), 4); | |
9c1a61f0 | 329 | h->bus = b; |
be13cc7a AG |
330 | |
331 | pci_create_simple(b, 0, "e500-host-bridge"); | |
332 | ||
cb4e15c7 | 333 | memory_region_init(&s->container, "pci-container", PCIE500_ALL_SIZE); |
d0ed8076 AK |
334 | memory_region_init_io(&h->conf_mem, &pci_host_conf_be_ops, h, |
335 | "pci-conf-idx", 4); | |
336 | memory_region_init_io(&h->data_mem, &pci_host_data_le_ops, h, | |
337 | "pci-conf-data", 4); | |
cd5cba79 AK |
338 | memory_region_init_io(&s->iomem, &e500_pci_reg_ops, s, |
339 | "pci.reg", PCIE500_REG_SIZE); | |
cb4e15c7 BC |
340 | memory_region_add_subregion(&s->container, PCIE500_CFGADDR, &h->conf_mem); |
341 | memory_region_add_subregion(&s->container, PCIE500_CFGDATA, &h->data_mem); | |
342 | memory_region_add_subregion(&s->container, PCIE500_REG_BASE, &s->iomem); | |
343 | sysbus_init_mmio(dev, &s->container); | |
be13cc7a AG |
344 | |
345 | return 0; | |
346 | } | |
347 | ||
40021f08 AL |
348 | static void e500_host_bridge_class_init(ObjectClass *klass, void *data) |
349 | { | |
39bffca2 | 350 | DeviceClass *dc = DEVICE_CLASS(klass); |
40021f08 AL |
351 | PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); |
352 | ||
353 | k->vendor_id = PCI_VENDOR_ID_FREESCALE; | |
354 | k->device_id = PCI_DEVICE_ID_MPC8533E; | |
355 | k->class_id = PCI_CLASS_PROCESSOR_POWERPC; | |
39bffca2 | 356 | dc->desc = "Host bridge"; |
40021f08 AL |
357 | } |
358 | ||
4240abff | 359 | static const TypeInfo e500_host_bridge_info = { |
39bffca2 AL |
360 | .name = "e500-host-bridge", |
361 | .parent = TYPE_PCI_DEVICE, | |
362 | .instance_size = sizeof(PCIDevice), | |
363 | .class_init = e500_host_bridge_class_init, | |
be13cc7a AG |
364 | }; |
365 | ||
999e12bb AL |
366 | static void e500_pcihost_class_init(ObjectClass *klass, void *data) |
367 | { | |
39bffca2 | 368 | DeviceClass *dc = DEVICE_CLASS(klass); |
999e12bb AL |
369 | SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass); |
370 | ||
371 | k->init = e500_pcihost_initfn; | |
39bffca2 | 372 | dc->vmsd = &vmstate_ppce500_pci; |
999e12bb AL |
373 | } |
374 | ||
4240abff | 375 | static const TypeInfo e500_pcihost_info = { |
9c1a61f0 | 376 | .name = TYPE_PPC_E500_PCI_HOST_BRIDGE, |
8558d942 | 377 | .parent = TYPE_PCI_HOST_BRIDGE, |
39bffca2 AL |
378 | .instance_size = sizeof(PPCE500PCIState), |
379 | .class_init = e500_pcihost_class_init, | |
be13cc7a AG |
380 | }; |
381 | ||
83f7d43a | 382 | static void e500_pci_register_types(void) |
74c62ba8 | 383 | { |
39bffca2 AL |
384 | type_register_static(&e500_pcihost_info); |
385 | type_register_static(&e500_host_bridge_info); | |
74c62ba8 | 386 | } |
83f7d43a AF |
387 | |
388 | type_init(e500_pci_register_types) |