4 * Copyright (c) 2004 Fabrice Bellard
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
28 #define PCI_VENDOR_ID 0x00 /* 16 bits */
29 #define PCI_DEVICE_ID 0x02 /* 16 bits */
30 #define PCI_COMMAND 0x04 /* 16 bits */
31 #define PCI_COMMAND_IO 0x1 /* Enable response in I/O space */
32 #define PCI_COMMAND_MEMORY 0x2 /* Enable response in Memory space */
33 #define PCI_CLASS_DEVICE 0x0a /* Device class */
34 #define PCI_INTERRUPT_LINE 0x3c /* 8 bits */
35 #define PCI_INTERRUPT_PIN 0x3d /* 8 bits */
36 #define PCI_MIN_GNT 0x3e /* 8 bits */
37 #define PCI_MAX_LAT 0x3f /* 8 bits */
39 /* just used for simpler irq handling. */
40 #define PCI_DEVICES_MAX 64
41 #define PCI_IRQ_WORDS ((PCI_DEVICES_MAX + 31) / 32)
43 typedef struct PCIBridge {
45 PCIDevice **pci_bus[256];
48 static PCIBridge pci_bridge[3];
49 target_phys_addr_t pci_mem_base;
50 static int pci_irq_index;
51 static uint32_t pci_irq_levels[4][PCI_IRQ_WORDS];
53 /* -1 for devfn means auto assign */
54 PCIDevice *pci_register_device(const char *name, int instance_size,
55 int bus_num, int devfn,
56 PCIConfigReadFunc *config_read,
57 PCIConfigWriteFunc *config_write)
59 PCIBridge *s = &pci_bridge[0];
60 PCIDevice *pci_dev, **bus;
62 if (pci_irq_index >= PCI_DEVICES_MAX)
65 if (!s->pci_bus[bus_num]) {
66 s->pci_bus[bus_num] = qemu_mallocz(256 * sizeof(PCIDevice *));
67 if (!s->pci_bus[bus_num])
70 bus = s->pci_bus[bus_num];
72 for(devfn = 0 ; devfn < 256; devfn += 8) {
74 if ((devfn >> 3) < 11)
83 pci_dev = qemu_mallocz(instance_size);
86 pci_dev->bus_num = bus_num;
87 pci_dev->devfn = devfn;
88 pstrcpy(pci_dev->name, sizeof(pci_dev->name), name);
91 config_read = pci_default_read_config;
93 config_write = pci_default_write_config;
94 pci_dev->config_read = config_read;
95 pci_dev->config_write = config_write;
96 pci_dev->irq_index = pci_irq_index++;
101 void pci_register_io_region(PCIDevice *pci_dev, int region_num,
102 uint32_t size, int type,
103 PCIMapIORegionFunc *map_func)
107 if ((unsigned int)region_num >= PCI_NUM_REGIONS)
109 r = &pci_dev->io_regions[region_num];
113 r->map_func = map_func;
116 static void pci_addr_writel(void* opaque, uint32_t addr, uint32_t val)
118 PCIBridge *s = opaque;
122 static uint32_t pci_addr_readl(void* opaque, uint32_t addr)
124 PCIBridge *s = opaque;
125 return s->config_reg;
128 static void pci_update_mappings(PCIDevice *d)
132 uint32_t last_addr, new_addr, config_ofs;
134 cmd = le16_to_cpu(*(uint16_t *)(d->config + PCI_COMMAND));
135 for(i = 0; i < PCI_NUM_REGIONS; i++) {
136 r = &d->io_regions[i];
137 if (i == PCI_ROM_SLOT) {
140 config_ofs = 0x10 + i * 4;
143 if (r->type & PCI_ADDRESS_SPACE_IO) {
144 if (cmd & PCI_COMMAND_IO) {
145 new_addr = le32_to_cpu(*(uint32_t *)(d->config +
147 new_addr = new_addr & ~(r->size - 1);
148 last_addr = new_addr + r->size - 1;
149 /* NOTE: we have only 64K ioports on PC */
150 if (last_addr <= new_addr || new_addr == 0 ||
151 last_addr >= 0x10000) {
158 if (cmd & PCI_COMMAND_MEMORY) {
159 new_addr = le32_to_cpu(*(uint32_t *)(d->config +
161 /* the ROM slot has a specific enable bit */
162 if (i == PCI_ROM_SLOT && !(new_addr & 1))
164 new_addr = new_addr & ~(r->size - 1);
165 last_addr = new_addr + r->size - 1;
166 /* NOTE: we do not support wrapping */
167 /* XXX: as we cannot support really dynamic
168 mappings, we handle specific values as invalid
170 if (last_addr <= new_addr || new_addr == 0 ||
179 /* now do the real mapping */
180 if (new_addr != r->addr) {
182 if (r->type & PCI_ADDRESS_SPACE_IO) {
184 /* NOTE: specific hack for IDE in PC case:
185 only one byte must be mapped. */
186 class = d->config[0x0a] | (d->config[0x0b] << 8);
187 if (class == 0x0101 && r->size == 4) {
188 isa_unassign_ioport(r->addr + 2, 1);
190 isa_unassign_ioport(r->addr, r->size);
193 cpu_register_physical_memory(r->addr + pci_mem_base,
200 r->map_func(d, i, r->addr, r->size, r->type);
207 uint32_t pci_default_read_config(PCIDevice *d,
208 uint32_t address, int len)
213 val = d->config[address];
216 val = le16_to_cpu(*(uint16_t *)(d->config + address));
220 val = le32_to_cpu(*(uint32_t *)(d->config + address));
226 void pci_default_write_config(PCIDevice *d,
227 uint32_t address, uint32_t val, int len)
232 if (len == 4 && ((address >= 0x10 && address < 0x10 + 4 * 6) ||
233 (address >= 0x30 && address < 0x34))) {
237 if ( address >= 0x30 ) {
240 reg = (address - 0x10) >> 2;
242 r = &d->io_regions[reg];
245 /* compute the stored value */
246 if (reg == PCI_ROM_SLOT) {
247 /* keep ROM enable bit */
248 val &= (~(r->size - 1)) | 1;
250 val &= ~(r->size - 1);
253 *(uint32_t *)(d->config + address) = cpu_to_le32(val);
254 pci_update_mappings(d);
258 /* not efficient, but simple */
260 for(i = 0; i < len; i++) {
261 /* default read/write accesses */
262 switch(d->config[0x0e]) {
275 case 0x10 ... 0x27: /* base */
276 case 0x30 ... 0x33: /* rom */
297 case 0x38 ... 0x3b: /* rom */
308 d->config[addr] = val;
315 if (end > PCI_COMMAND && address < (PCI_COMMAND + 2)) {
316 /* if the command register is modified, we must modify the mappings */
317 pci_update_mappings(d);
321 static void pci_data_write(void *opaque, uint32_t addr,
322 uint32_t val, int len)
324 PCIBridge *s = opaque;
325 PCIDevice **bus, *pci_dev;
328 #if defined(DEBUG_PCI) && 0
329 printf("pci_data_write: addr=%08x val=%08x len=%d\n",
330 s->config_reg, val, len);
332 if (!(s->config_reg & (1 << 31))) {
335 if ((s->config_reg & 0x3) != 0) {
338 bus = s->pci_bus[(s->config_reg >> 16) & 0xff];
341 pci_dev = bus[(s->config_reg >> 8) & 0xff];
344 config_addr = (s->config_reg & 0xfc) | (addr & 3);
345 #if defined(DEBUG_PCI)
346 printf("pci_config_write: %s: addr=%02x val=%08x len=%d\n",
347 pci_dev->name, config_addr, val, len);
349 pci_dev->config_write(pci_dev, config_addr, val, len);
352 static uint32_t pci_data_read(void *opaque, uint32_t addr,
355 PCIBridge *s = opaque;
356 PCIDevice **bus, *pci_dev;
360 if (!(s->config_reg & (1 << 31)))
362 if ((s->config_reg & 0x3) != 0)
364 bus = s->pci_bus[(s->config_reg >> 16) & 0xff];
367 pci_dev = bus[(s->config_reg >> 8) & 0xff];
384 config_addr = (s->config_reg & 0xfc) | (addr & 3);
385 val = pci_dev->config_read(pci_dev, config_addr, len);
386 #if defined(DEBUG_PCI)
387 printf("pci_config_read: %s: addr=%02x val=%08x len=%d\n",
388 pci_dev->name, config_addr, val, len);
391 #if defined(DEBUG_PCI) && 0
392 printf("pci_data_read: addr=%08x val=%08x len=%d\n",
393 s->config_reg, val, len);
398 static void pci_data_writeb(void* opaque, uint32_t addr, uint32_t val)
400 pci_data_write(opaque, addr, val, 1);
403 static void pci_data_writew(void* opaque, uint32_t addr, uint32_t val)
405 pci_data_write(opaque, addr, val, 2);
408 static void pci_data_writel(void* opaque, uint32_t addr, uint32_t val)
410 pci_data_write(opaque, addr, val, 4);
413 static uint32_t pci_data_readb(void* opaque, uint32_t addr)
415 return pci_data_read(opaque, addr, 1);
418 static uint32_t pci_data_readw(void* opaque, uint32_t addr)
420 return pci_data_read(opaque, addr, 2);
423 static uint32_t pci_data_readl(void* opaque, uint32_t addr)
425 return pci_data_read(opaque, addr, 4);
428 /* i440FX PCI bridge */
430 void i440fx_init(void)
432 PCIBridge *s = &pci_bridge[0];
435 register_ioport_write(0xcf8, 4, 4, pci_addr_writel, s);
436 register_ioport_read(0xcf8, 4, 4, pci_addr_readl, s);
438 register_ioport_write(0xcfc, 4, 1, pci_data_writeb, s);
439 register_ioport_write(0xcfc, 4, 2, pci_data_writew, s);
440 register_ioport_write(0xcfc, 4, 4, pci_data_writel, s);
441 register_ioport_read(0xcfc, 4, 1, pci_data_readb, s);
442 register_ioport_read(0xcfc, 4, 2, pci_data_readw, s);
443 register_ioport_read(0xcfc, 4, 4, pci_data_readl, s);
445 d = pci_register_device("i440FX", sizeof(PCIDevice), 0, 0,
448 d->config[0x00] = 0x86; // vendor_id
449 d->config[0x01] = 0x80;
450 d->config[0x02] = 0x37; // device_id
451 d->config[0x03] = 0x12;
452 d->config[0x08] = 0x02; // revision
453 d->config[0x0a] = 0x00; // class_sub = host2pci
454 d->config[0x0b] = 0x06; // class_base = PCI_bridge
455 d->config[0x0e] = 0x00; // header_type
458 /* PIIX3 PCI to ISA bridge */
460 typedef struct PIIX3State {
464 PIIX3State *piix3_state;
466 static void piix3_reset(PIIX3State *d)
468 uint8_t *pci_conf = d->dev.config;
470 pci_conf[0x04] = 0x07; // master, memory and I/O
471 pci_conf[0x05] = 0x00;
472 pci_conf[0x06] = 0x00;
473 pci_conf[0x07] = 0x02; // PCI_status_devsel_medium
474 pci_conf[0x4c] = 0x4d;
475 pci_conf[0x4e] = 0x03;
476 pci_conf[0x4f] = 0x00;
477 pci_conf[0x60] = 0x80;
478 pci_conf[0x69] = 0x02;
479 pci_conf[0x70] = 0x80;
480 pci_conf[0x76] = 0x0c;
481 pci_conf[0x77] = 0x0c;
482 pci_conf[0x78] = 0x02;
483 pci_conf[0x79] = 0x00;
484 pci_conf[0x80] = 0x00;
485 pci_conf[0x82] = 0x00;
486 pci_conf[0xa0] = 0x08;
487 pci_conf[0xa0] = 0x08;
488 pci_conf[0xa2] = 0x00;
489 pci_conf[0xa3] = 0x00;
490 pci_conf[0xa4] = 0x00;
491 pci_conf[0xa5] = 0x00;
492 pci_conf[0xa6] = 0x00;
493 pci_conf[0xa7] = 0x00;
494 pci_conf[0xa8] = 0x0f;
495 pci_conf[0xaa] = 0x00;
496 pci_conf[0xab] = 0x00;
497 pci_conf[0xac] = 0x00;
498 pci_conf[0xae] = 0x00;
501 void piix3_init(void)
506 d = (PIIX3State *)pci_register_device("PIIX3", sizeof(PIIX3State),
510 pci_conf = d->dev.config;
512 pci_conf[0x00] = 0x86; // Intel
513 pci_conf[0x01] = 0x80;
514 pci_conf[0x02] = 0x00; // 82371SB PIIX3 PCI-to-ISA bridge (Step A1)
515 pci_conf[0x03] = 0x70;
516 pci_conf[0x0a] = 0x01; // class_sub = PCI_ISA
517 pci_conf[0x0b] = 0x06; // class_base = PCI_bridge
518 pci_conf[0x0e] = 0x80; // header_type = PCI_multifunction, generic
525 static inline void set_config(PCIBridge *s, target_phys_addr_t addr)
529 for(i = 0; i < 11; i++) {
530 if ((addr & (1 << (11 + i))) != 0)
533 devfn = ((addr >> 8) & 7) | (i << 3);
534 s->config_reg = 0x80000000 | (addr & 0xfc) | (devfn << 8);
537 static void PPC_PCIIO_writeb (void *opaque, target_phys_addr_t addr, uint32_t val)
539 PCIBridge *s = opaque;
541 pci_data_write(s, addr, val, 1);
544 static void PPC_PCIIO_writew (void *opaque, target_phys_addr_t addr, uint32_t val)
546 PCIBridge *s = opaque;
548 #ifdef TARGET_WORDS_BIGENDIAN
551 pci_data_write(s, addr, val, 2);
554 static void PPC_PCIIO_writel (void *opaque, target_phys_addr_t addr, uint32_t val)
556 PCIBridge *s = opaque;
558 #ifdef TARGET_WORDS_BIGENDIAN
561 pci_data_write(s, addr, val, 4);
564 static uint32_t PPC_PCIIO_readb (void *opaque, target_phys_addr_t addr)
566 PCIBridge *s = opaque;
569 val = pci_data_read(s, addr, 1);
573 static uint32_t PPC_PCIIO_readw (void *opaque, target_phys_addr_t addr)
575 PCIBridge *s = opaque;
578 val = pci_data_read(s, addr, 2);
579 #ifdef TARGET_WORDS_BIGENDIAN
585 static uint32_t PPC_PCIIO_readl (void *opaque, target_phys_addr_t addr)
587 PCIBridge *s = opaque;
590 val = pci_data_read(s, addr, 4);
591 #ifdef TARGET_WORDS_BIGENDIAN
597 static CPUWriteMemoryFunc *PPC_PCIIO_write[] = {
603 static CPUReadMemoryFunc *PPC_PCIIO_read[] = {
609 void pci_prep_init(void)
611 PCIBridge *s = &pci_bridge[0];
615 PPC_io_memory = cpu_register_io_memory(0, PPC_PCIIO_read,
617 cpu_register_physical_memory(0x80800000, 0x00400000, PPC_io_memory);
619 d = pci_register_device("PREP PCI Bridge", sizeof(PCIDevice), 0, 0,
622 /* XXX: put correct IDs */
623 d->config[0x00] = 0x11; // vendor_id
624 d->config[0x01] = 0x10;
625 d->config[0x02] = 0x26; // device_id
626 d->config[0x03] = 0x00;
627 d->config[0x08] = 0x02; // revision
628 d->config[0x0a] = 0x04; // class_sub = pci2pci
629 d->config[0x0b] = 0x06; // class_base = PCI_bridge
630 d->config[0x0e] = 0x01; // header_type
636 /* Grackle PCI host */
637 static void pci_grackle_config_writel (void *opaque, target_phys_addr_t addr,
640 PCIBridge *s = opaque;
641 #ifdef TARGET_WORDS_BIGENDIAN
647 static uint32_t pci_grackle_config_readl (void *opaque, target_phys_addr_t addr)
649 PCIBridge *s = opaque;
653 #ifdef TARGET_WORDS_BIGENDIAN
659 static CPUWriteMemoryFunc *pci_grackle_config_write[] = {
660 &pci_grackle_config_writel,
661 &pci_grackle_config_writel,
662 &pci_grackle_config_writel,
665 static CPUReadMemoryFunc *pci_grackle_config_read[] = {
666 &pci_grackle_config_readl,
667 &pci_grackle_config_readl,
668 &pci_grackle_config_readl,
671 static void pci_grackle_writeb (void *opaque, target_phys_addr_t addr,
674 PCIBridge *s = opaque;
675 pci_data_write(s, addr, val, 1);
678 static void pci_grackle_writew (void *opaque, target_phys_addr_t addr,
681 PCIBridge *s = opaque;
682 #ifdef TARGET_WORDS_BIGENDIAN
685 pci_data_write(s, addr, val, 2);
688 static void pci_grackle_writel (void *opaque, target_phys_addr_t addr,
691 PCIBridge *s = opaque;
692 #ifdef TARGET_WORDS_BIGENDIAN
695 pci_data_write(s, addr, val, 4);
698 static uint32_t pci_grackle_readb (void *opaque, target_phys_addr_t addr)
700 PCIBridge *s = opaque;
702 val = pci_data_read(s, addr, 1);
706 static uint32_t pci_grackle_readw (void *opaque, target_phys_addr_t addr)
708 PCIBridge *s = opaque;
710 val = pci_data_read(s, addr, 2);
711 #ifdef TARGET_WORDS_BIGENDIAN
717 static uint32_t pci_grackle_readl (void *opaque, target_phys_addr_t addr)
719 PCIBridge *s = opaque;
722 val = pci_data_read(s, addr, 4);
723 #ifdef TARGET_WORDS_BIGENDIAN
729 static CPUWriteMemoryFunc *pci_grackle_write[] = {
735 static CPUReadMemoryFunc *pci_grackle_read[] = {
741 /* Uninorth PCI host (for all Mac99 and newer machines */
742 static void pci_unin_main_config_writel (void *opaque, target_phys_addr_t addr,
745 PCIBridge *s = opaque;
748 #ifdef TARGET_WORDS_BIGENDIAN
752 for (i = 11; i < 32; i++) {
753 if ((val & (1 << i)) != 0)
757 s->config_reg = 0x80000000 | (1 << 16) | (val & 0x7FC) | (i << 11);
759 s->config_reg = 0x80000000 | (0 << 16) | (val & 0x7FC) | (i << 11);
763 static uint32_t pci_unin_main_config_readl (void *opaque,
764 target_phys_addr_t addr)
766 PCIBridge *s = opaque;
770 devfn = (s->config_reg >> 8) & 0xFF;
771 val = (1 << (devfn >> 3)) | ((devfn & 0x07) << 8) | (s->config_reg & 0xFC);
772 #ifdef TARGET_WORDS_BIGENDIAN
779 static CPUWriteMemoryFunc *pci_unin_main_config_write[] = {
780 &pci_unin_main_config_writel,
781 &pci_unin_main_config_writel,
782 &pci_unin_main_config_writel,
785 static CPUReadMemoryFunc *pci_unin_main_config_read[] = {
786 &pci_unin_main_config_readl,
787 &pci_unin_main_config_readl,
788 &pci_unin_main_config_readl,
791 static void pci_unin_main_writeb (void *opaque, target_phys_addr_t addr,
794 PCIBridge *s = opaque;
795 pci_data_write(s, addr & 7, val, 1);
798 static void pci_unin_main_writew (void *opaque, target_phys_addr_t addr,
801 PCIBridge *s = opaque;
802 #ifdef TARGET_WORDS_BIGENDIAN
805 pci_data_write(s, addr & 7, val, 2);
808 static void pci_unin_main_writel (void *opaque, target_phys_addr_t addr,
811 PCIBridge *s = opaque;
812 #ifdef TARGET_WORDS_BIGENDIAN
815 pci_data_write(s, addr & 7, val, 4);
818 static uint32_t pci_unin_main_readb (void *opaque, target_phys_addr_t addr)
820 PCIBridge *s = opaque;
823 val = pci_data_read(s, addr & 7, 1);
828 static uint32_t pci_unin_main_readw (void *opaque, target_phys_addr_t addr)
830 PCIBridge *s = opaque;
833 val = pci_data_read(s, addr & 7, 2);
834 #ifdef TARGET_WORDS_BIGENDIAN
841 static uint32_t pci_unin_main_readl (void *opaque, target_phys_addr_t addr)
843 PCIBridge *s = opaque;
846 val = pci_data_read(s, addr, 4);
847 #ifdef TARGET_WORDS_BIGENDIAN
854 static CPUWriteMemoryFunc *pci_unin_main_write[] = {
855 &pci_unin_main_writeb,
856 &pci_unin_main_writew,
857 &pci_unin_main_writel,
860 static CPUReadMemoryFunc *pci_unin_main_read[] = {
861 &pci_unin_main_readb,
862 &pci_unin_main_readw,
863 &pci_unin_main_readl,
866 static void pci_unin_config_writel (void *opaque, target_phys_addr_t addr,
869 PCIBridge *s = opaque;
871 #ifdef TARGET_WORDS_BIGENDIAN
874 s->config_reg = 0x80000000 | (val & ~0x00000001);
877 static uint32_t pci_unin_config_readl (void *opaque,
878 target_phys_addr_t addr)
880 PCIBridge *s = opaque;
883 val = (s->config_reg | 0x00000001) & ~0x80000000;
884 #ifdef TARGET_WORDS_BIGENDIAN
891 static CPUWriteMemoryFunc *pci_unin_config_write[] = {
892 &pci_unin_config_writel,
893 &pci_unin_config_writel,
894 &pci_unin_config_writel,
897 static CPUReadMemoryFunc *pci_unin_config_read[] = {
898 &pci_unin_config_readl,
899 &pci_unin_config_readl,
900 &pci_unin_config_readl,
903 static void pci_unin_writeb (void *opaque, target_phys_addr_t addr,
906 PCIBridge *s = opaque;
907 pci_data_write(s, addr & 3, val, 1);
910 static void pci_unin_writew (void *opaque, target_phys_addr_t addr,
913 PCIBridge *s = opaque;
914 #ifdef TARGET_WORDS_BIGENDIAN
917 pci_data_write(s, addr & 3, val, 2);
920 static void pci_unin_writel (void *opaque, target_phys_addr_t addr,
923 PCIBridge *s = opaque;
924 #ifdef TARGET_WORDS_BIGENDIAN
927 pci_data_write(s, addr & 3, val, 4);
930 static uint32_t pci_unin_readb (void *opaque, target_phys_addr_t addr)
932 PCIBridge *s = opaque;
935 val = pci_data_read(s, addr & 3, 1);
940 static uint32_t pci_unin_readw (void *opaque, target_phys_addr_t addr)
942 PCIBridge *s = opaque;
945 val = pci_data_read(s, addr & 3, 2);
946 #ifdef TARGET_WORDS_BIGENDIAN
953 static uint32_t pci_unin_readl (void *opaque, target_phys_addr_t addr)
955 PCIBridge *s = opaque;
958 val = pci_data_read(s, addr & 3, 4);
959 #ifdef TARGET_WORDS_BIGENDIAN
966 static CPUWriteMemoryFunc *pci_unin_write[] = {
972 static CPUReadMemoryFunc *pci_unin_read[] = {
978 void pci_pmac_init(void)
982 int pci_mem_config, pci_mem_data;
984 /* Use values found on a real PowerMac */
985 /* Uninorth main bus */
987 pci_mem_config = cpu_register_io_memory(0, pci_unin_main_config_read,
988 pci_unin_main_config_write, s);
989 pci_mem_data = cpu_register_io_memory(0, pci_unin_main_read,
990 pci_unin_main_write, s);
991 cpu_register_physical_memory(0xf2800000, 0x1000, pci_mem_config);
992 cpu_register_physical_memory(0xf2c00000, 0x1000, pci_mem_data);
994 d = pci_register_device("Uni-north main", sizeof(PCIDevice), 0, 11 << 3,
996 d->config[0x00] = 0x6b; // vendor_id : Apple
997 d->config[0x01] = 0x10;
998 d->config[0x02] = 0x1F; // device_id
999 d->config[0x03] = 0x00;
1000 d->config[0x08] = 0x00; // revision
1001 d->config[0x0A] = 0x00; // class_sub = pci host
1002 d->config[0x0B] = 0x06; // class_base = PCI_bridge
1003 d->config[0x0C] = 0x08; // cache_line_size
1004 d->config[0x0D] = 0x10; // latency_timer
1005 d->config[0x0E] = 0x00; // header_type
1006 d->config[0x34] = 0x00; // capabilities_pointer
1008 #if 0 // XXX: not activated as PPC BIOS doesn't handle mutiple buses properly
1009 /* pci-to-pci bridge */
1010 d = pci_register_device("Uni-north bridge", sizeof(PCIDevice), 0, 13 << 3,
1012 d->config[0x00] = 0x11; // vendor_id : TI
1013 d->config[0x01] = 0x10;
1014 d->config[0x02] = 0x26; // device_id
1015 d->config[0x03] = 0x00;
1016 d->config[0x08] = 0x05; // revision
1017 d->config[0x0A] = 0x04; // class_sub = pci2pci
1018 d->config[0x0B] = 0x06; // class_base = PCI_bridge
1019 d->config[0x0C] = 0x08; // cache_line_size
1020 d->config[0x0D] = 0x20; // latency_timer
1021 d->config[0x0E] = 0x01; // header_type
1023 d->config[0x18] = 0x01; // primary_bus
1024 d->config[0x19] = 0x02; // secondary_bus
1025 d->config[0x1A] = 0x02; // subordinate_bus
1026 d->config[0x1B] = 0x20; // secondary_latency_timer
1027 d->config[0x1C] = 0x11; // io_base
1028 d->config[0x1D] = 0x01; // io_limit
1029 d->config[0x20] = 0x00; // memory_base
1030 d->config[0x21] = 0x80;
1031 d->config[0x22] = 0x00; // memory_limit
1032 d->config[0x23] = 0x80;
1033 d->config[0x24] = 0x01; // prefetchable_memory_base
1034 d->config[0x25] = 0x80;
1035 d->config[0x26] = 0xF1; // prefectchable_memory_limit
1036 d->config[0x27] = 0x7F;
1037 // d->config[0x34] = 0xdc // capabilities_pointer
1039 #if 0 // XXX: not needed for now
1040 /* Uninorth AGP bus */
1042 pci_mem_config = cpu_register_io_memory(0, pci_unin_config_read,
1043 pci_unin_config_write, s);
1044 pci_mem_data = cpu_register_io_memory(0, pci_unin_read,
1046 cpu_register_physical_memory(0xf0800000, 0x1000, pci_mem_config);
1047 cpu_register_physical_memory(0xf0c00000, 0x1000, pci_mem_data);
1049 d = pci_register_device("Uni-north AGP", sizeof(PCIDevice), 0, 11 << 3,
1051 d->config[0x00] = 0x6b; // vendor_id : Apple
1052 d->config[0x01] = 0x10;
1053 d->config[0x02] = 0x20; // device_id
1054 d->config[0x03] = 0x00;
1055 d->config[0x08] = 0x00; // revision
1056 d->config[0x0A] = 0x00; // class_sub = pci host
1057 d->config[0x0B] = 0x06; // class_base = PCI_bridge
1058 d->config[0x0C] = 0x08; // cache_line_size
1059 d->config[0x0D] = 0x10; // latency_timer
1060 d->config[0x0E] = 0x00; // header_type
1061 // d->config[0x34] = 0x80; // capabilities_pointer
1064 #if 0 // XXX: not needed for now
1065 /* Uninorth internal bus */
1067 pci_mem_config = cpu_register_io_memory(0, pci_unin_config_read,
1068 pci_unin_config_write, s);
1069 pci_mem_data = cpu_register_io_memory(0, pci_unin_read,
1071 cpu_register_physical_memory(0xf4800000, 0x1000, pci_mem_config);
1072 cpu_register_physical_memory(0xf4c00000, 0x1000, pci_mem_data);
1074 d = pci_register_device("Uni-north internal", sizeof(PCIDevice),
1075 3, 11 << 3, NULL, NULL);
1076 d->config[0x00] = 0x6b; // vendor_id : Apple
1077 d->config[0x01] = 0x10;
1078 d->config[0x02] = 0x1E; // device_id
1079 d->config[0x03] = 0x00;
1080 d->config[0x08] = 0x00; // revision
1081 d->config[0x0A] = 0x00; // class_sub = pci host
1082 d->config[0x0B] = 0x06; // class_base = PCI_bridge
1083 d->config[0x0C] = 0x08; // cache_line_size
1084 d->config[0x0D] = 0x10; // latency_timer
1085 d->config[0x0E] = 0x00; // header_type
1086 d->config[0x34] = 0x00; // capabilities_pointer
1090 /* same values as PearPC - check this */
1091 d->config[0x00] = 0x11; // vendor_id
1092 d->config[0x01] = 0x10;
1093 d->config[0x02] = 0x26; // device_id
1094 d->config[0x03] = 0x00;
1095 d->config[0x08] = 0x02; // revision
1096 d->config[0x0a] = 0x04; // class_sub = pci2pci
1097 d->config[0x0b] = 0x06; // class_base = PCI_bridge
1098 d->config[0x0e] = 0x01; // header_type
1100 d->config[0x18] = 0x0; // primary_bus
1101 d->config[0x19] = 0x1; // secondary_bus
1102 d->config[0x1a] = 0x1; // subordinate_bus
1103 d->config[0x1c] = 0x10; // io_base
1104 d->config[0x1d] = 0x20; // io_limit
1106 d->config[0x20] = 0x80; // memory_base
1107 d->config[0x21] = 0x80;
1108 d->config[0x22] = 0x90; // memory_limit
1109 d->config[0x23] = 0x80;
1111 d->config[0x24] = 0x00; // prefetchable_memory_base
1112 d->config[0x25] = 0x84;
1113 d->config[0x26] = 0x00; // prefetchable_memory_limit
1114 d->config[0x27] = 0x85;
1118 /***********************************************************/
1119 /* generic PCI irq support */
1121 /* return the global irq number corresponding to a given device irq
1122 pin. We could also use the bus number to have a more precise
1124 static inline int pci_slot_get_pirq(PCIDevice *pci_dev, int irq_num)
1127 slot_addend = (pci_dev->devfn >> 3);
1128 return (irq_num + slot_addend) & 3;
1131 /* 0 <= irq_num <= 3. level must be 0 or 1 */
1133 void pci_set_irq(PCIDevice *pci_dev, int irq_num, int level)
1137 void pci_set_irq(PCIDevice *pci_dev, int irq_num, int level)
1139 int irq_index, shift, pic_irq, pic_level;
1142 irq_num = pci_slot_get_pirq(pci_dev, irq_num);
1143 irq_index = pci_dev->irq_index;
1144 p = &pci_irq_levels[irq_num][irq_index >> 5];
1145 shift = (irq_index & 0x1f);
1146 *p = (*p & ~(1 << shift)) | (level << shift);
1148 /* now we change the pic irq level according to the piix irq mappings */
1149 pic_irq = piix3_state->dev.config[0x60 + irq_num];
1151 /* the pic level is the logical OR of all the PCI irqs mapped
1154 #if (PCI_IRQ_WORDS == 2)
1155 pic_level = ((pci_irq_levels[irq_num][0] |
1156 pci_irq_levels[irq_num][1]) != 0);
1161 for(i = 0; i < PCI_IRQ_WORDS; i++) {
1162 if (pci_irq_levels[irq_num][i]) {
1169 pic_set_irq(pic_irq, pic_level);
1174 /***********************************************************/
1175 /* monitor info on PCI */
1177 static void pci_info_device(PCIDevice *d)
1182 printf(" Bus %2d, device %3d, function %d:\n",
1183 d->bus_num, d->devfn >> 3, d->devfn & 7);
1184 class = le16_to_cpu(*((uint16_t *)(d->config + PCI_CLASS_DEVICE)));
1188 printf("IDE controller");
1191 printf("Ethernet controller");
1194 printf("VGA controller");
1197 printf("Class %04x", class);
1200 printf(": PCI device %04x:%04x\n",
1201 le16_to_cpu(*((uint16_t *)(d->config + PCI_VENDOR_ID))),
1202 le16_to_cpu(*((uint16_t *)(d->config + PCI_DEVICE_ID))));
1204 if (d->config[PCI_INTERRUPT_PIN] != 0) {
1205 printf(" IRQ %d.\n", d->config[PCI_INTERRUPT_LINE]);
1207 for(i = 0;i < PCI_NUM_REGIONS; i++) {
1208 r = &d->io_regions[i];
1210 printf(" BAR%d: ", i);
1211 if (r->type & PCI_ADDRESS_SPACE_IO) {
1212 printf("I/O at 0x%04x [0x%04x].\n",
1213 r->addr, r->addr + r->size - 1);
1215 printf("32 bit memory at 0x%08x [0x%08x].\n",
1216 r->addr, r->addr + r->size - 1);
1224 PCIBridge *s = &pci_bridge[0];
1228 for(bus_num = 0; bus_num < 256; bus_num++) {
1229 bus = s->pci_bus[bus_num];
1231 for(devfn = 0; devfn < 256; devfn++) {
1233 pci_info_device(bus[devfn]);
1239 /***********************************************************/
1240 /* XXX: the following should be moved to the PC BIOS */
1242 static uint32_t isa_inb(uint32_t addr)
1244 return cpu_inb(cpu_single_env, addr);
1247 static void isa_outb(uint32_t val, uint32_t addr)
1249 cpu_outb(cpu_single_env, addr, val);
1252 static uint32_t isa_inw(uint32_t addr)
1254 return cpu_inw(cpu_single_env, addr);
1257 static void isa_outw(uint32_t val, uint32_t addr)
1259 cpu_outw(cpu_single_env, addr, val);
1262 static uint32_t isa_inl(uint32_t addr)
1264 return cpu_inl(cpu_single_env, addr);
1267 static void isa_outl(uint32_t val, uint32_t addr)
1269 cpu_outl(cpu_single_env, addr, val);
1272 static void pci_config_writel(PCIDevice *d, uint32_t addr, uint32_t val)
1274 PCIBridge *s = &pci_bridge[0];
1275 s->config_reg = 0x80000000 | (d->bus_num << 16) |
1276 (d->devfn << 8) | addr;
1277 pci_data_write(s, 0, val, 4);
1280 static void pci_config_writew(PCIDevice *d, uint32_t addr, uint32_t val)
1282 PCIBridge *s = &pci_bridge[0];
1283 s->config_reg = 0x80000000 | (d->bus_num << 16) |
1284 (d->devfn << 8) | (addr & ~3);
1285 pci_data_write(s, addr & 3, val, 2);
1288 static void pci_config_writeb(PCIDevice *d, uint32_t addr, uint32_t val)
1290 PCIBridge *s = &pci_bridge[0];
1291 s->config_reg = 0x80000000 | (d->bus_num << 16) |
1292 (d->devfn << 8) | (addr & ~3);
1293 pci_data_write(s, addr & 3, val, 1);
1296 static uint32_t pci_config_readl(PCIDevice *d, uint32_t addr)
1298 PCIBridge *s = &pci_bridge[0];
1299 s->config_reg = 0x80000000 | (d->bus_num << 16) |
1300 (d->devfn << 8) | addr;
1301 return pci_data_read(s, 0, 4);
1304 static uint32_t pci_config_readw(PCIDevice *d, uint32_t addr)
1306 PCIBridge *s = &pci_bridge[0];
1307 s->config_reg = 0x80000000 | (d->bus_num << 16) |
1308 (d->devfn << 8) | (addr & ~3);
1309 return pci_data_read(s, addr & 3, 2);
1312 static uint32_t pci_config_readb(PCIDevice *d, uint32_t addr)
1314 PCIBridge *s = &pci_bridge[0];
1315 s->config_reg = 0x80000000 | (d->bus_num << 16) |
1316 (d->devfn << 8) | (addr & ~3);
1317 return pci_data_read(s, addr & 3, 1);
1320 static uint32_t pci_bios_io_addr;
1321 static uint32_t pci_bios_mem_addr;
1322 /* host irqs corresponding to PCI irqs A-D */
1323 static uint8_t pci_irqs[4] = { 11, 9, 11, 9 };
1325 static void pci_set_io_region_addr(PCIDevice *d, int region_num, uint32_t addr)
1331 if ( region_num == PCI_ROM_SLOT ) {
1334 ofs = 0x10 + region_num * 4;
1337 pci_config_writel(d, ofs, addr);
1338 r = &d->io_regions[region_num];
1340 /* enable memory mappings */
1341 cmd = pci_config_readw(d, PCI_COMMAND);
1342 if ( region_num == PCI_ROM_SLOT )
1344 else if (r->type & PCI_ADDRESS_SPACE_IO)
1348 pci_config_writew(d, PCI_COMMAND, cmd);
1351 static void pci_bios_init_device(PCIDevice *d)
1356 int i, pin, pic_irq, vendor_id, device_id;
1358 class = pci_config_readw(d, PCI_CLASS_DEVICE);
1359 vendor_id = pci_config_readw(d, PCI_VENDOR_ID);
1360 device_id = pci_config_readw(d, PCI_DEVICE_ID);
1363 if (vendor_id == 0x8086 && device_id == 0x7010) {
1365 pci_config_writew(d, PCI_COMMAND, PCI_COMMAND_IO);
1366 pci_config_writew(d, 0x40, 0x8000); // enable IDE0
1367 pci_config_writew(d, 0x42, 0x8000); // enable IDE1
1369 /* IDE: we map it as in ISA mode */
1370 pci_set_io_region_addr(d, 0, 0x1f0);
1371 pci_set_io_region_addr(d, 1, 0x3f4);
1372 pci_set_io_region_addr(d, 2, 0x170);
1373 pci_set_io_region_addr(d, 3, 0x374);
1377 if (vendor_id != 0x1234)
1379 /* VGA: map frame buffer to default Bochs VBE address */
1380 pci_set_io_region_addr(d, 0, 0xE0000000);
1384 vendor_id = pci_config_readw(d, PCI_VENDOR_ID);
1385 device_id = pci_config_readw(d, PCI_DEVICE_ID);
1386 if (vendor_id == 0x1014) {
1388 if (device_id == 0x0046 || device_id == 0xFFFF) {
1390 pci_set_io_region_addr(d, 0, 0x80800000 + 0x00040000);
1395 if (vendor_id == 0x0106b &&
1396 (device_id == 0x0017 || device_id == 0x0022)) {
1398 pci_set_io_region_addr(d, 0, 0x80800000);
1403 /* default memory mappings */
1404 for(i = 0; i < PCI_NUM_REGIONS; i++) {
1405 r = &d->io_regions[i];
1407 if (r->type & PCI_ADDRESS_SPACE_IO)
1408 paddr = &pci_bios_io_addr;
1410 paddr = &pci_bios_mem_addr;
1411 *paddr = (*paddr + r->size - 1) & ~(r->size - 1);
1412 pci_set_io_region_addr(d, i, *paddr);
1419 /* map the interrupt */
1420 pin = pci_config_readb(d, PCI_INTERRUPT_PIN);
1422 pin = pci_slot_get_pirq(d, pin - 1);
1423 pic_irq = pci_irqs[pin];
1424 pci_config_writeb(d, PCI_INTERRUPT_LINE, pic_irq);
1429 * This function initializes the PCI devices as a normal PCI BIOS
1430 * would do. It is provided just in case the BIOS has no support for
1433 void pci_bios_init(void)
1435 PCIBridge *s = &pci_bridge[0];
1437 int bus_num, devfn, i, irq;
1440 pci_bios_io_addr = 0xc000;
1441 pci_bios_mem_addr = 0xf0000000;
1443 /* activate IRQ mappings */
1446 for(i = 0; i < 4; i++) {
1448 /* set to trigger level */
1449 elcr[irq >> 3] |= (1 << (irq & 7));
1450 /* activate irq remapping in PIIX */
1451 pci_config_writeb((PCIDevice *)piix3_state, 0x60 + i, irq);
1453 isa_outb(elcr[0], 0x4d0);
1454 isa_outb(elcr[1], 0x4d1);
1456 for(bus_num = 0; bus_num < 256; bus_num++) {
1457 bus = s->pci_bus[bus_num];
1459 for(devfn = 0; devfn < 256; devfn++) {
1461 pci_bios_init_device(bus[devfn]);
1468 * This function initializes the PCI devices as a normal PCI BIOS
1469 * would do. It is provided just in case the BIOS has no support for
1472 void pci_ppc_bios_init(void)
1474 PCIBridge *s = &pci_bridge[0];
1482 pci_bios_io_addr = 0xc000;
1483 pci_bios_mem_addr = 0xc0000000;
1486 /* activate IRQ mappings */
1489 for(i = 0; i < 4; i++) {
1491 /* set to trigger level */
1492 elcr[irq >> 3] |= (1 << (irq & 7));
1493 /* activate irq remapping in PIIX */
1494 pci_config_writeb((PCIDevice *)piix3_state, 0x60 + i, irq);
1496 isa_outb(elcr[0], 0x4d0);
1497 isa_outb(elcr[1], 0x4d1);
1500 for(bus_num = 0; bus_num < 256; bus_num++) {
1501 bus = s->pci_bus[bus_num];
1503 for(devfn = 0; devfn < 256; devfn++) {
1505 pci_bios_init_device(bus[devfn]);