1 /* 2 * Powermac setup and early boot code plus other random bits. 3 * 4 * PowerPC version 5 * Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org) 6 * 7 * Adapted for Power Macintosh by Paul Mackerras 8 * Copyright (C) 1996 Paul Mackerras (paulus@samba.org) 9 * 10 * Derived from "arch/alpha/kernel/setup.c" 11 * Copyright (C) 1995 Linus Torvalds 12 * 13 * Maintained by Benjamin Herrenschmidt (benh@kernel.crashing.org) 14 * 15 * This program is free software; you can redistribute it and/or 16 * modify it under the terms of the GNU General Public License 17 * as published by the Free Software Foundation; either version 18 * 2 of the License, or (at your option) any later version. 19 * 20 */ 21 22 /* 23 * bootup setup stuff.. 24 */ 25 26 #include <linux/config.h> 27 #include <linux/init.h> 28 #include <linux/errno.h> 29 #include <linux/sched.h> 30 #include <linux/kernel.h> 31 #include <linux/mm.h> 32 #include <linux/stddef.h> 33 #include <linux/unistd.h> 34 #include <linux/ptrace.h> 35 #include <linux/slab.h> 36 #include <linux/user.h> 37 #include <linux/a.out.h> 38 #include <linux/tty.h> 39 #include <linux/string.h> 40 #include <linux/delay.h> 41 #include <linux/ioport.h> 42 #include <linux/major.h> 43 #include <linux/initrd.h> 44 #include <linux/vt_kern.h> 45 #include <linux/console.h> 46 #include <linux/ide.h> 47 #include <linux/pci.h> 48 #include <linux/adb.h> 49 #include <linux/cuda.h> 50 #include <linux/pmu.h> 51 #include <linux/irq.h> 52 #include <linux/seq_file.h> 53 #include <linux/root_dev.h> 54 #include <linux/bitops.h> 55 #include <linux/suspend.h> 56 57 #include <asm/reg.h> 58 #include <asm/sections.h> 59 #include <asm/prom.h> 60 #include <asm/system.h> 61 #include <asm/pgtable.h> 62 #include <asm/io.h> 63 #include <asm/pci-bridge.h> 64 #include <asm/ohare.h> 65 #include <asm/mediabay.h> 66 #include <asm/machdep.h> 67 #include <asm/dma.h> 68 #include <asm/cputable.h> 69 #include <asm/btext.h> 70 #include <asm/pmac_feature.h> 71 #include <asm/time.h> 72 #include <asm/of_device.h> 73 #include <asm/mmu_context.h> 74 #include <asm/iommu.h> 75 #include <asm/smu.h> 76 #include <asm/pmc.h> 77 #include <asm/mpic.h> 78 79 #include "pmac.h" 80 81 #undef SHOW_GATWICK_IRQS 82 83 unsigned char drive_info; 84 85 int ppc_override_l2cr = 0; 86 int ppc_override_l2cr_value; 87 int has_l2cache = 0; 88 89 int pmac_newworld = 1; 90 91 static int current_root_goodness = -1; 92 93 extern int pmac_newworld; 94 extern struct machdep_calls pmac_md; 95 96 #define DEFAULT_ROOT_DEVICE Root_SDA1 /* sda1 - slightly silly choice */ 97 98 #ifdef CONFIG_PPC64 99 #include <asm/udbg.h> 100 int sccdbg; 101 #endif 102 103 extern void zs_kgdb_hook(int tty_num); 104 105 sys_ctrler_t sys_ctrler = SYS_CTRLER_UNKNOWN; 106 EXPORT_SYMBOL(sys_ctrler); 107 108 #ifdef CONFIG_PMAC_SMU 109 unsigned long smu_cmdbuf_abs; 110 EXPORT_SYMBOL(smu_cmdbuf_abs); 111 #endif 112 113 #ifdef CONFIG_SMP 114 extern struct smp_ops_t psurge_smp_ops; 115 extern struct smp_ops_t core99_smp_ops; 116 #endif /* CONFIG_SMP */ 117 118 static void pmac_show_cpuinfo(struct seq_file *m) 119 { 120 struct device_node *np; 121 char *pp; 122 int plen; 123 int mbmodel; 124 unsigned int mbflags; 125 char* mbname; 126 127 mbmodel = pmac_call_feature(PMAC_FTR_GET_MB_INFO, NULL, 128 PMAC_MB_INFO_MODEL, 0); 129 mbflags = pmac_call_feature(PMAC_FTR_GET_MB_INFO, NULL, 130 PMAC_MB_INFO_FLAGS, 0); 131 if (pmac_call_feature(PMAC_FTR_GET_MB_INFO, NULL, PMAC_MB_INFO_NAME, 132 (long) &mbname) != 0) 133 mbname = "Unknown"; 134 135 /* find motherboard type */ 136 seq_printf(m, "machine\t\t: "); 137 np = of_find_node_by_path("/"); 138 if (np != NULL) { 139 pp = (char *) get_property(np, "model", NULL); 140 if (pp != NULL) 141 seq_printf(m, "%s\n", pp); 142 else 143 seq_printf(m, "PowerMac\n"); 144 pp = (char *) get_property(np, "compatible", &plen); 145 if (pp != NULL) { 146 seq_printf(m, "motherboard\t:"); 147 while (plen > 0) { 148 int l = strlen(pp) + 1; 149 seq_printf(m, " %s", pp); 150 plen -= l; 151 pp += l; 152 } 153 seq_printf(m, "\n"); 154 } 155 of_node_put(np); 156 } else 157 seq_printf(m, "PowerMac\n"); 158 159 /* print parsed model */ 160 seq_printf(m, "detected as\t: %d (%s)\n", mbmodel, mbname); 161 seq_printf(m, "pmac flags\t: %08x\n", mbflags); 162 163 /* find l2 cache info */ 164 np = of_find_node_by_name(NULL, "l2-cache"); 165 if (np == NULL) 166 np = of_find_node_by_type(NULL, "cache"); 167 if (np != NULL) { 168 unsigned int *ic = (unsigned int *) 169 get_property(np, "i-cache-size", NULL); 170 unsigned int *dc = (unsigned int *) 171 get_property(np, "d-cache-size", NULL); 172 seq_printf(m, "L2 cache\t:"); 173 has_l2cache = 1; 174 if (get_property(np, "cache-unified", NULL) != 0 && dc) { 175 seq_printf(m, " %dK unified", *dc / 1024); 176 } else { 177 if (ic) 178 seq_printf(m, " %dK instruction", *ic / 1024); 179 if (dc) 180 seq_printf(m, "%s %dK data", 181 (ic? " +": ""), *dc / 1024); 182 } 183 pp = get_property(np, "ram-type", NULL); 184 if (pp) 185 seq_printf(m, " %s", pp); 186 seq_printf(m, "\n"); 187 of_node_put(np); 188 } 189 190 /* Indicate newworld/oldworld */ 191 seq_printf(m, "pmac-generation\t: %s\n", 192 pmac_newworld ? "NewWorld" : "OldWorld"); 193 } 194 195 static void pmac_show_percpuinfo(struct seq_file *m, int i) 196 { 197 #ifdef CONFIG_CPU_FREQ_PMAC 198 extern unsigned int pmac_get_one_cpufreq(int i); 199 unsigned int freq = pmac_get_one_cpufreq(i); 200 if (freq != 0) { 201 seq_printf(m, "clock\t\t: %dMHz\n", freq/1000); 202 return; 203 } 204 #endif /* CONFIG_CPU_FREQ_PMAC */ 205 #ifdef CONFIG_PPC32 206 of_show_percpuinfo(m, i); 207 #endif 208 } 209 210 #ifndef CONFIG_ADB_CUDA 211 int find_via_cuda(void) 212 { 213 if (!find_devices("via-cuda")) 214 return 0; 215 printk("WARNING ! Your machine is CUDA-based but your kernel\n"); 216 printk(" wasn't compiled with CONFIG_ADB_CUDA option !\n"); 217 return 0; 218 } 219 #endif 220 221 #ifndef CONFIG_ADB_PMU 222 int find_via_pmu(void) 223 { 224 if (!find_devices("via-pmu")) 225 return 0; 226 printk("WARNING ! Your machine is PMU-based but your kernel\n"); 227 printk(" wasn't compiled with CONFIG_ADB_PMU option !\n"); 228 return; 229 } 230 #endif 231 232 #ifndef CONFIG_PMAC_SMU 233 int smu_init(void) 234 { 235 /* should check and warn if SMU is present */ 236 return 0; 237 } 238 #endif 239 240 #ifdef CONFIG_PPC32 241 static volatile u32 *sysctrl_regs; 242 243 static void __init ohare_init(void) 244 { 245 /* this area has the CPU identification register 246 and some registers used by smp boards */ 247 sysctrl_regs = (volatile u32 *) ioremap(0xf8000000, 0x1000); 248 249 /* 250 * Turn on the L2 cache. 251 * We assume that we have a PSX memory controller iff 252 * we have an ohare I/O controller. 253 */ 254 if (find_devices("ohare") != NULL) { 255 if (((sysctrl_regs[2] >> 24) & 0xf) >= 3) { 256 if (sysctrl_regs[4] & 0x10) 257 sysctrl_regs[4] |= 0x04000020; 258 else 259 sysctrl_regs[4] |= 0x04000000; 260 if(has_l2cache) 261 printk(KERN_INFO "Level 2 cache enabled\n"); 262 } 263 } 264 } 265 266 static void __init l2cr_init(void) 267 { 268 /* Checks "l2cr-value" property in the registry */ 269 if (cpu_has_feature(CPU_FTR_L2CR)) { 270 struct device_node *np = find_devices("cpus"); 271 if (np == 0) 272 np = find_type_devices("cpu"); 273 if (np != 0) { 274 unsigned int *l2cr = (unsigned int *) 275 get_property(np, "l2cr-value", NULL); 276 if (l2cr != 0) { 277 ppc_override_l2cr = 1; 278 ppc_override_l2cr_value = *l2cr; 279 _set_L2CR(0); 280 _set_L2CR(ppc_override_l2cr_value); 281 } 282 } 283 } 284 285 if (ppc_override_l2cr) 286 printk(KERN_INFO "L2CR overridden (0x%x), " 287 "backside cache is %s\n", 288 ppc_override_l2cr_value, 289 (ppc_override_l2cr_value & 0x80000000) 290 ? "enabled" : "disabled"); 291 } 292 #endif 293 294 void __init pmac_setup_arch(void) 295 { 296 struct device_node *cpu; 297 int *fp; 298 unsigned long pvr; 299 300 pvr = PVR_VER(mfspr(SPRN_PVR)); 301 302 /* Set loops_per_jiffy to a half-way reasonable value, 303 for use until calibrate_delay gets called. */ 304 loops_per_jiffy = 50000000 / HZ; 305 cpu = of_find_node_by_type(NULL, "cpu"); 306 if (cpu != NULL) { 307 fp = (int *) get_property(cpu, "clock-frequency", NULL); 308 if (fp != NULL) { 309 if (pvr >= 0x30 && pvr < 0x80) 310 /* PPC970 etc. */ 311 loops_per_jiffy = *fp / (3 * HZ); 312 else if (pvr == 4 || pvr >= 8) 313 /* 604, G3, G4 etc. */ 314 loops_per_jiffy = *fp / HZ; 315 else 316 /* 601, 603, etc. */ 317 loops_per_jiffy = *fp / (2 * HZ); 318 } 319 of_node_put(cpu); 320 } 321 322 /* Lookup PCI hosts */ 323 pmac_pci_init(); 324 325 #ifdef CONFIG_PPC32 326 ohare_init(); 327 l2cr_init(); 328 #endif /* CONFIG_PPC32 */ 329 330 #ifdef CONFIG_PPC64 331 /* Probe motherboard chipset */ 332 /* this is done earlier in setup_arch for 32-bit */ 333 pmac_feature_init(); 334 335 /* We can NAP */ 336 powersave_nap = 1; 337 printk(KERN_INFO "Using native/NAP idle loop\n"); 338 #endif 339 340 #ifdef CONFIG_KGDB 341 zs_kgdb_hook(0); 342 #endif 343 344 find_via_cuda(); 345 find_via_pmu(); 346 smu_init(); 347 348 #ifdef CONFIG_NVRAM 349 pmac_nvram_init(); 350 #endif 351 352 #ifdef CONFIG_PPC32 353 #ifdef CONFIG_BLK_DEV_INITRD 354 if (initrd_start) 355 ROOT_DEV = Root_RAM0; 356 else 357 #endif 358 ROOT_DEV = DEFAULT_ROOT_DEVICE; 359 #endif 360 361 #ifdef CONFIG_SMP 362 /* Check for Core99 */ 363 if (find_devices("uni-n") || find_devices("u3")) 364 smp_ops = &core99_smp_ops; 365 #ifdef CONFIG_PPC32 366 else 367 smp_ops = &psurge_smp_ops; 368 #endif 369 #endif /* CONFIG_SMP */ 370 } 371 372 char *bootpath; 373 char *bootdevice; 374 void *boot_host; 375 int boot_target; 376 int boot_part; 377 extern dev_t boot_dev; 378 379 #ifdef CONFIG_SCSI 380 void __init note_scsi_host(struct device_node *node, void *host) 381 { 382 int l; 383 char *p; 384 385 l = strlen(node->full_name); 386 if (bootpath != NULL && bootdevice != NULL 387 && strncmp(node->full_name, bootdevice, l) == 0 388 && (bootdevice[l] == '/' || bootdevice[l] == 0)) { 389 boot_host = host; 390 /* 391 * There's a bug in OF 1.0.5. (Why am I not surprised.) 392 * If you pass a path like scsi/sd@1:0 to canon, it returns 393 * something like /bandit@F2000000/gc@10/53c94@10000/sd@0,0 394 * That is, the scsi target number doesn't get preserved. 395 * So we pick the target number out of bootpath and use that. 396 */ 397 p = strstr(bootpath, "/sd@"); 398 if (p != NULL) { 399 p += 4; 400 boot_target = simple_strtoul(p, NULL, 10); 401 p = strchr(p, ':'); 402 if (p != NULL) 403 boot_part = simple_strtoul(p + 1, NULL, 10); 404 } 405 } 406 } 407 EXPORT_SYMBOL(note_scsi_host); 408 #endif 409 410 #if defined(CONFIG_BLK_DEV_IDE) && defined(CONFIG_BLK_DEV_IDE_PMAC) 411 static dev_t __init find_ide_boot(void) 412 { 413 char *p; 414 int n; 415 dev_t __init pmac_find_ide_boot(char *bootdevice, int n); 416 417 if (bootdevice == NULL) 418 return 0; 419 p = strrchr(bootdevice, '/'); 420 if (p == NULL) 421 return 0; 422 n = p - bootdevice; 423 424 return pmac_find_ide_boot(bootdevice, n); 425 } 426 #endif /* CONFIG_BLK_DEV_IDE && CONFIG_BLK_DEV_IDE_PMAC */ 427 428 static void __init find_boot_device(void) 429 { 430 #if defined(CONFIG_BLK_DEV_IDE) && defined(CONFIG_BLK_DEV_IDE_PMAC) 431 boot_dev = find_ide_boot(); 432 #endif 433 } 434 435 /* TODO: Merge the suspend-to-ram with the common code !!! 436 * currently, this is a stub implementation for suspend-to-disk 437 * only 438 */ 439 440 #ifdef CONFIG_SOFTWARE_SUSPEND 441 442 static int pmac_pm_prepare(suspend_state_t state) 443 { 444 printk(KERN_DEBUG "%s(%d)\n", __FUNCTION__, state); 445 446 return 0; 447 } 448 449 static int pmac_pm_enter(suspend_state_t state) 450 { 451 printk(KERN_DEBUG "%s(%d)\n", __FUNCTION__, state); 452 453 /* Giveup the lazy FPU & vec so we don't have to back them 454 * up from the low level code 455 */ 456 enable_kernel_fp(); 457 458 #ifdef CONFIG_ALTIVEC 459 if (cur_cpu_spec->cpu_features & CPU_FTR_ALTIVEC) 460 enable_kernel_altivec(); 461 #endif /* CONFIG_ALTIVEC */ 462 463 return 0; 464 } 465 466 static int pmac_pm_finish(suspend_state_t state) 467 { 468 printk(KERN_DEBUG "%s(%d)\n", __FUNCTION__, state); 469 470 /* Restore userland MMU context */ 471 set_context(current->active_mm->context, current->active_mm->pgd); 472 473 return 0; 474 } 475 476 static struct pm_ops pmac_pm_ops = { 477 .pm_disk_mode = PM_DISK_SHUTDOWN, 478 .prepare = pmac_pm_prepare, 479 .enter = pmac_pm_enter, 480 .finish = pmac_pm_finish, 481 }; 482 483 #endif /* CONFIG_SOFTWARE_SUSPEND */ 484 485 static int initializing = 1; 486 487 static int pmac_late_init(void) 488 { 489 initializing = 0; 490 #ifdef CONFIG_SOFTWARE_SUSPEND 491 pm_set_ops(&pmac_pm_ops); 492 #endif /* CONFIG_SOFTWARE_SUSPEND */ 493 return 0; 494 } 495 496 late_initcall(pmac_late_init); 497 498 /* can't be __init - can be called whenever a disk is first accessed */ 499 void note_bootable_part(dev_t dev, int part, int goodness) 500 { 501 static int found_boot = 0; 502 char *p; 503 504 if (!initializing) 505 return; 506 if ((goodness <= current_root_goodness) && 507 ROOT_DEV != DEFAULT_ROOT_DEVICE) 508 return; 509 p = strstr(saved_command_line, "root="); 510 if (p != NULL && (p == saved_command_line || p[-1] == ' ')) 511 return; 512 513 if (!found_boot) { 514 find_boot_device(); 515 found_boot = 1; 516 } 517 if (!boot_dev || dev == boot_dev) { 518 ROOT_DEV = dev + part; 519 boot_dev = 0; 520 current_root_goodness = goodness; 521 } 522 } 523 524 #ifdef CONFIG_ADB_CUDA 525 static void cuda_restart(void) 526 { 527 struct adb_request req; 528 529 cuda_request(&req, NULL, 2, CUDA_PACKET, CUDA_RESET_SYSTEM); 530 for (;;) 531 cuda_poll(); 532 } 533 534 static void cuda_shutdown(void) 535 { 536 struct adb_request req; 537 538 cuda_request(&req, NULL, 2, CUDA_PACKET, CUDA_POWERDOWN); 539 for (;;) 540 cuda_poll(); 541 } 542 543 #else 544 #define cuda_restart() 545 #define cuda_shutdown() 546 #endif 547 548 #ifndef CONFIG_ADB_PMU 549 #define pmu_restart() 550 #define pmu_shutdown() 551 #endif 552 553 #ifndef CONFIG_PMAC_SMU 554 #define smu_restart() 555 #define smu_shutdown() 556 #endif 557 558 static void pmac_restart(char *cmd) 559 { 560 switch (sys_ctrler) { 561 case SYS_CTRLER_CUDA: 562 cuda_restart(); 563 break; 564 case SYS_CTRLER_PMU: 565 pmu_restart(); 566 break; 567 case SYS_CTRLER_SMU: 568 smu_restart(); 569 break; 570 default: ; 571 } 572 } 573 574 static void pmac_power_off(void) 575 { 576 switch (sys_ctrler) { 577 case SYS_CTRLER_CUDA: 578 cuda_shutdown(); 579 break; 580 case SYS_CTRLER_PMU: 581 pmu_shutdown(); 582 break; 583 case SYS_CTRLER_SMU: 584 smu_shutdown(); 585 break; 586 default: ; 587 } 588 } 589 590 static void 591 pmac_halt(void) 592 { 593 pmac_power_off(); 594 } 595 596 #ifdef CONFIG_PPC32 597 void __init pmac_init(void) 598 { 599 /* isa_io_base gets set in pmac_pci_init */ 600 isa_mem_base = PMAC_ISA_MEM_BASE; 601 pci_dram_offset = PMAC_PCI_DRAM_OFFSET; 602 ISA_DMA_THRESHOLD = ~0L; 603 DMA_MODE_READ = 1; 604 DMA_MODE_WRITE = 2; 605 606 ppc_md = pmac_md; 607 608 #if defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_IDE_MODULE) 609 #ifdef CONFIG_BLK_DEV_IDE_PMAC 610 ppc_ide_md.ide_init_hwif = pmac_ide_init_hwif_ports; 611 ppc_ide_md.default_io_base = pmac_ide_get_base; 612 #endif /* CONFIG_BLK_DEV_IDE_PMAC */ 613 #endif /* defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_IDE_MODULE) */ 614 615 if (ppc_md.progress) ppc_md.progress("pmac_init(): exit", 0); 616 617 } 618 #endif 619 620 /* 621 * Early initialization. 622 */ 623 static void __init pmac_init_early(void) 624 { 625 #ifdef CONFIG_PPC64 626 /* Initialize hash table, from now on, we can take hash faults 627 * and call ioremap 628 */ 629 hpte_init_native(); 630 631 /* Init SCC */ 632 if (strstr(cmd_line, "sccdbg")) { 633 sccdbg = 1; 634 udbg_init_scc(NULL); 635 } 636 637 /* Setup interrupt mapping options */ 638 ppc64_interrupt_controller = IC_OPEN_PIC; 639 640 iommu_init_early_u3(); 641 #endif 642 } 643 644 static void __init pmac_progress(char *s, unsigned short hex) 645 { 646 #ifdef CONFIG_PPC64 647 if (sccdbg) { 648 udbg_puts(s); 649 udbg_puts("\n"); 650 return; 651 } 652 #endif 653 #ifdef CONFIG_BOOTX_TEXT 654 if (boot_text_mapped) { 655 btext_drawstring(s); 656 btext_drawchar('\n'); 657 } 658 #endif /* CONFIG_BOOTX_TEXT */ 659 } 660 661 /* 662 * pmac has no legacy IO, anything calling this function has to 663 * fail or bad things will happen 664 */ 665 static int pmac_check_legacy_ioport(unsigned int baseport) 666 { 667 return -ENODEV; 668 } 669 670 static int __init pmac_declare_of_platform_devices(void) 671 { 672 struct device_node *np; 673 674 np = find_devices("uni-n"); 675 if (np) { 676 for (np = np->child; np != NULL; np = np->sibling) 677 if (strncmp(np->name, "i2c", 3) == 0) { 678 of_platform_device_create(np, "uni-n-i2c", 679 NULL); 680 break; 681 } 682 } 683 np = find_devices("valkyrie"); 684 if (np) 685 of_platform_device_create(np, "valkyrie", NULL); 686 np = find_devices("platinum"); 687 if (np) 688 of_platform_device_create(np, "platinum", NULL); 689 690 np = find_devices("u3"); 691 if (np) { 692 for (np = np->child; np != NULL; np = np->sibling) 693 if (strncmp(np->name, "i2c", 3) == 0) { 694 of_platform_device_create(np, "u3-i2c", 695 NULL); 696 break; 697 } 698 } 699 np = of_find_node_by_type(NULL, "smu"); 700 if (np) { 701 of_platform_device_create(np, "smu", NULL); 702 of_node_put(np); 703 } 704 705 return 0; 706 } 707 708 device_initcall(pmac_declare_of_platform_devices); 709 710 /* 711 * Called very early, MMU is off, device-tree isn't unflattened 712 */ 713 static int __init pmac_probe(int platform) 714 { 715 #ifdef CONFIG_PPC64 716 if (platform != PLATFORM_POWERMAC) 717 return 0; 718 719 /* 720 * On U3, the DART (iommu) must be allocated now since it 721 * has an impact on htab_initialize (due to the large page it 722 * occupies having to be broken up so the DART itself is not 723 * part of the cacheable linar mapping 724 */ 725 alloc_u3_dart_table(); 726 #endif 727 728 #ifdef CONFIG_PMAC_SMU 729 /* 730 * SMU based G5s need some memory below 2Gb, at least the current 731 * driver needs that. We have to allocate it now. We allocate 4k 732 * (1 small page) for now. 733 */ 734 smu_cmdbuf_abs = lmb_alloc_base(4096, 4096, 0x80000000UL); 735 #endif /* CONFIG_PMAC_SMU */ 736 737 return 1; 738 } 739 740 #ifdef CONFIG_PPC64 741 static int pmac_probe_mode(struct pci_bus *bus) 742 { 743 struct device_node *node = bus->sysdata; 744 745 /* We need to use normal PCI probing for the AGP bus, 746 since the device for the AGP bridge isn't in the tree. */ 747 if (bus->self == NULL && device_is_compatible(node, "u3-agp")) 748 return PCI_PROBE_NORMAL; 749 750 return PCI_PROBE_DEVTREE; 751 } 752 #endif 753 754 struct machdep_calls __initdata pmac_md = { 755 #if defined(CONFIG_HOTPLUG_CPU) && defined(CONFIG_PPC64) 756 .cpu_die = generic_mach_cpu_die, 757 #endif 758 .probe = pmac_probe, 759 .setup_arch = pmac_setup_arch, 760 .init_early = pmac_init_early, 761 .show_cpuinfo = pmac_show_cpuinfo, 762 .show_percpuinfo = pmac_show_percpuinfo, 763 .init_IRQ = pmac_pic_init, 764 .get_irq = mpic_get_irq, /* changed later */ 765 .pcibios_fixup = pmac_pcibios_fixup, 766 .restart = pmac_restart, 767 .power_off = pmac_power_off, 768 .halt = pmac_halt, 769 .time_init = pmac_time_init, 770 .get_boot_time = pmac_get_boot_time, 771 .set_rtc_time = pmac_set_rtc_time, 772 .get_rtc_time = pmac_get_rtc_time, 773 .calibrate_decr = pmac_calibrate_decr, 774 .feature_call = pmac_do_feature_call, 775 .check_legacy_ioport = pmac_check_legacy_ioport, 776 .progress = pmac_progress, 777 #ifdef CONFIG_PPC64 778 .pci_probe_mode = pmac_probe_mode, 779 .idle_loop = native_idle, 780 .enable_pmcs = power4_enable_pmcs, 781 #endif 782 #ifdef CONFIG_PPC32 783 .pcibios_enable_device_hook = pmac_pci_enable_device_hook, 784 .pcibios_after_init = pmac_pcibios_after_init, 785 .phys_mem_access_prot = pci_phys_mem_access_prot, 786 #endif 787 }; 788