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/init.h> 27 #include <linux/errno.h> 28 #include <linux/sched.h> 29 #include <linux/kernel.h> 30 #include <linux/mm.h> 31 #include <linux/stddef.h> 32 #include <linux/unistd.h> 33 #include <linux/ptrace.h> 34 #include <linux/slab.h> 35 #include <linux/user.h> 36 #include <linux/a.out.h> 37 #include <linux/tty.h> 38 #include <linux/string.h> 39 #include <linux/delay.h> 40 #include <linux/ioport.h> 41 #include <linux/major.h> 42 #include <linux/initrd.h> 43 #include <linux/vt_kern.h> 44 #include <linux/console.h> 45 #include <linux/ide.h> 46 #include <linux/pci.h> 47 #include <linux/adb.h> 48 #include <linux/cuda.h> 49 #include <linux/pmu.h> 50 #include <linux/irq.h> 51 #include <linux/seq_file.h> 52 #include <linux/root_dev.h> 53 #include <linux/bitops.h> 54 #include <linux/suspend.h> 55 56 #include <asm/reg.h> 57 #include <asm/sections.h> 58 #include <asm/prom.h> 59 #include <asm/system.h> 60 #include <asm/pgtable.h> 61 #include <asm/io.h> 62 #include <asm/kexec.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/of_platform.h> 74 #include <asm/mmu_context.h> 75 #include <asm/iommu.h> 76 #include <asm/smu.h> 77 #include <asm/pmc.h> 78 #include <asm/lmb.h> 79 #include <asm/udbg.h> 80 81 #include "pmac.h" 82 83 #undef SHOW_GATWICK_IRQS 84 85 int ppc_override_l2cr = 0; 86 int ppc_override_l2cr_value; 87 int has_l2cache = 0; 88 89 int pmac_newworld; 90 91 static int current_root_goodness = -1; 92 93 extern struct machdep_calls pmac_md; 94 95 #define DEFAULT_ROOT_DEVICE Root_SDA1 /* sda1 - slightly silly choice */ 96 97 #ifdef CONFIG_PPC64 98 #include <asm/udbg.h> 99 int sccdbg; 100 #endif 101 102 extern void zs_kgdb_hook(int tty_num); 103 104 sys_ctrler_t sys_ctrler = SYS_CTRLER_UNKNOWN; 105 EXPORT_SYMBOL(sys_ctrler); 106 107 #ifdef CONFIG_PMAC_SMU 108 unsigned long smu_cmdbuf_abs; 109 EXPORT_SYMBOL(smu_cmdbuf_abs); 110 #endif 111 112 #ifdef CONFIG_SMP 113 extern struct smp_ops_t psurge_smp_ops; 114 extern struct smp_ops_t core99_smp_ops; 115 #endif /* CONFIG_SMP */ 116 117 static void pmac_show_cpuinfo(struct seq_file *m) 118 { 119 struct device_node *np; 120 const char *pp; 121 int plen; 122 int mbmodel; 123 unsigned int mbflags; 124 char* mbname; 125 126 mbmodel = pmac_call_feature(PMAC_FTR_GET_MB_INFO, NULL, 127 PMAC_MB_INFO_MODEL, 0); 128 mbflags = pmac_call_feature(PMAC_FTR_GET_MB_INFO, NULL, 129 PMAC_MB_INFO_FLAGS, 0); 130 if (pmac_call_feature(PMAC_FTR_GET_MB_INFO, NULL, PMAC_MB_INFO_NAME, 131 (long) &mbname) != 0) 132 mbname = "Unknown"; 133 134 /* find motherboard type */ 135 seq_printf(m, "machine\t\t: "); 136 np = of_find_node_by_path("/"); 137 if (np != NULL) { 138 pp = get_property(np, "model", NULL); 139 if (pp != NULL) 140 seq_printf(m, "%s\n", pp); 141 else 142 seq_printf(m, "PowerMac\n"); 143 pp = get_property(np, "compatible", &plen); 144 if (pp != NULL) { 145 seq_printf(m, "motherboard\t:"); 146 while (plen > 0) { 147 int l = strlen(pp) + 1; 148 seq_printf(m, " %s", pp); 149 plen -= l; 150 pp += l; 151 } 152 seq_printf(m, "\n"); 153 } 154 of_node_put(np); 155 } else 156 seq_printf(m, "PowerMac\n"); 157 158 /* print parsed model */ 159 seq_printf(m, "detected as\t: %d (%s)\n", mbmodel, mbname); 160 seq_printf(m, "pmac flags\t: %08x\n", mbflags); 161 162 /* find l2 cache info */ 163 np = of_find_node_by_name(NULL, "l2-cache"); 164 if (np == NULL) 165 np = of_find_node_by_type(NULL, "cache"); 166 if (np != NULL) { 167 const unsigned int *ic = get_property(np, "i-cache-size", NULL); 168 const unsigned int *dc = get_property(np, "d-cache-size", NULL); 169 seq_printf(m, "L2 cache\t:"); 170 has_l2cache = 1; 171 if (get_property(np, "cache-unified", NULL) != 0 && dc) { 172 seq_printf(m, " %dK unified", *dc / 1024); 173 } else { 174 if (ic) 175 seq_printf(m, " %dK instruction", *ic / 1024); 176 if (dc) 177 seq_printf(m, "%s %dK data", 178 (ic? " +": ""), *dc / 1024); 179 } 180 pp = get_property(np, "ram-type", NULL); 181 if (pp) 182 seq_printf(m, " %s", pp); 183 seq_printf(m, "\n"); 184 of_node_put(np); 185 } 186 187 /* Indicate newworld/oldworld */ 188 seq_printf(m, "pmac-generation\t: %s\n", 189 pmac_newworld ? "NewWorld" : "OldWorld"); 190 } 191 192 #ifndef CONFIG_ADB_CUDA 193 int find_via_cuda(void) 194 { 195 if (!find_devices("via-cuda")) 196 return 0; 197 printk("WARNING ! Your machine is CUDA-based but your kernel\n"); 198 printk(" wasn't compiled with CONFIG_ADB_CUDA option !\n"); 199 return 0; 200 } 201 #endif 202 203 #ifndef CONFIG_ADB_PMU 204 int find_via_pmu(void) 205 { 206 if (!find_devices("via-pmu")) 207 return 0; 208 printk("WARNING ! Your machine is PMU-based but your kernel\n"); 209 printk(" wasn't compiled with CONFIG_ADB_PMU option !\n"); 210 return 0; 211 } 212 #endif 213 214 #ifndef CONFIG_PMAC_SMU 215 int smu_init(void) 216 { 217 /* should check and warn if SMU is present */ 218 return 0; 219 } 220 #endif 221 222 #ifdef CONFIG_PPC32 223 static volatile u32 *sysctrl_regs; 224 225 static void __init ohare_init(void) 226 { 227 /* this area has the CPU identification register 228 and some registers used by smp boards */ 229 sysctrl_regs = (volatile u32 *) ioremap(0xf8000000, 0x1000); 230 231 /* 232 * Turn on the L2 cache. 233 * We assume that we have a PSX memory controller iff 234 * we have an ohare I/O controller. 235 */ 236 if (find_devices("ohare") != NULL) { 237 if (((sysctrl_regs[2] >> 24) & 0xf) >= 3) { 238 if (sysctrl_regs[4] & 0x10) 239 sysctrl_regs[4] |= 0x04000020; 240 else 241 sysctrl_regs[4] |= 0x04000000; 242 if(has_l2cache) 243 printk(KERN_INFO "Level 2 cache enabled\n"); 244 } 245 } 246 } 247 248 static void __init l2cr_init(void) 249 { 250 /* Checks "l2cr-value" property in the registry */ 251 if (cpu_has_feature(CPU_FTR_L2CR)) { 252 struct device_node *np = find_devices("cpus"); 253 if (np == 0) 254 np = find_type_devices("cpu"); 255 if (np != 0) { 256 const unsigned int *l2cr = 257 get_property(np, "l2cr-value", NULL); 258 if (l2cr != 0) { 259 ppc_override_l2cr = 1; 260 ppc_override_l2cr_value = *l2cr; 261 _set_L2CR(0); 262 _set_L2CR(ppc_override_l2cr_value); 263 } 264 } 265 } 266 267 if (ppc_override_l2cr) 268 printk(KERN_INFO "L2CR overridden (0x%x), " 269 "backside cache is %s\n", 270 ppc_override_l2cr_value, 271 (ppc_override_l2cr_value & 0x80000000) 272 ? "enabled" : "disabled"); 273 } 274 #endif 275 276 static void __init pmac_setup_arch(void) 277 { 278 struct device_node *cpu, *ic; 279 const int *fp; 280 unsigned long pvr; 281 282 pvr = PVR_VER(mfspr(SPRN_PVR)); 283 284 /* Set loops_per_jiffy to a half-way reasonable value, 285 for use until calibrate_delay gets called. */ 286 loops_per_jiffy = 50000000 / HZ; 287 cpu = of_find_node_by_type(NULL, "cpu"); 288 if (cpu != NULL) { 289 fp = get_property(cpu, "clock-frequency", NULL); 290 if (fp != NULL) { 291 if (pvr >= 0x30 && pvr < 0x80) 292 /* PPC970 etc. */ 293 loops_per_jiffy = *fp / (3 * HZ); 294 else if (pvr == 4 || pvr >= 8) 295 /* 604, G3, G4 etc. */ 296 loops_per_jiffy = *fp / HZ; 297 else 298 /* 601, 603, etc. */ 299 loops_per_jiffy = *fp / (2 * HZ); 300 } 301 of_node_put(cpu); 302 } 303 304 /* See if newworld or oldworld */ 305 for (ic = NULL; (ic = of_find_all_nodes(ic)) != NULL; ) 306 if (get_property(ic, "interrupt-controller", NULL)) 307 break; 308 if (ic) { 309 pmac_newworld = 1; 310 of_node_put(ic); 311 } 312 313 /* Lookup PCI hosts */ 314 pmac_pci_init(); 315 316 #ifdef CONFIG_PPC32 317 ohare_init(); 318 l2cr_init(); 319 #endif /* CONFIG_PPC32 */ 320 321 #ifdef CONFIG_KGDB 322 zs_kgdb_hook(0); 323 #endif 324 325 find_via_cuda(); 326 find_via_pmu(); 327 smu_init(); 328 329 #if defined(CONFIG_NVRAM) || defined(CONFIG_PPC64) 330 pmac_nvram_init(); 331 #endif 332 333 #ifdef CONFIG_PPC32 334 #ifdef CONFIG_BLK_DEV_INITRD 335 if (initrd_start) 336 ROOT_DEV = Root_RAM0; 337 else 338 #endif 339 ROOT_DEV = DEFAULT_ROOT_DEVICE; 340 #endif 341 342 #ifdef CONFIG_SMP 343 /* Check for Core99 */ 344 if (find_devices("uni-n") || find_devices("u3") || find_devices("u4")) 345 smp_ops = &core99_smp_ops; 346 #ifdef CONFIG_PPC32 347 else 348 smp_ops = &psurge_smp_ops; 349 #endif 350 #endif /* CONFIG_SMP */ 351 352 #ifdef CONFIG_ADB 353 if (strstr(cmd_line, "adb_sync")) { 354 extern int __adb_probe_sync; 355 __adb_probe_sync = 1; 356 } 357 #endif /* CONFIG_ADB */ 358 } 359 360 char *bootpath; 361 char *bootdevice; 362 void *boot_host; 363 int boot_target; 364 int boot_part; 365 static dev_t boot_dev; 366 367 #ifdef CONFIG_SCSI 368 void __init note_scsi_host(struct device_node *node, void *host) 369 { 370 int l; 371 char *p; 372 373 l = strlen(node->full_name); 374 if (bootpath != NULL && bootdevice != NULL 375 && strncmp(node->full_name, bootdevice, l) == 0 376 && (bootdevice[l] == '/' || bootdevice[l] == 0)) { 377 boot_host = host; 378 /* 379 * There's a bug in OF 1.0.5. (Why am I not surprised.) 380 * If you pass a path like scsi/sd@1:0 to canon, it returns 381 * something like /bandit@F2000000/gc@10/53c94@10000/sd@0,0 382 * That is, the scsi target number doesn't get preserved. 383 * So we pick the target number out of bootpath and use that. 384 */ 385 p = strstr(bootpath, "/sd@"); 386 if (p != NULL) { 387 p += 4; 388 boot_target = simple_strtoul(p, NULL, 10); 389 p = strchr(p, ':'); 390 if (p != NULL) 391 boot_part = simple_strtoul(p + 1, NULL, 10); 392 } 393 } 394 } 395 EXPORT_SYMBOL(note_scsi_host); 396 #endif 397 398 #if defined(CONFIG_BLK_DEV_IDE) && defined(CONFIG_BLK_DEV_IDE_PMAC) 399 static dev_t __init find_ide_boot(void) 400 { 401 char *p; 402 int n; 403 dev_t __init pmac_find_ide_boot(char *bootdevice, int n); 404 405 if (bootdevice == NULL) 406 return 0; 407 p = strrchr(bootdevice, '/'); 408 if (p == NULL) 409 return 0; 410 n = p - bootdevice; 411 412 return pmac_find_ide_boot(bootdevice, n); 413 } 414 #endif /* CONFIG_BLK_DEV_IDE && CONFIG_BLK_DEV_IDE_PMAC */ 415 416 static void __init find_boot_device(void) 417 { 418 #if defined(CONFIG_BLK_DEV_IDE) && defined(CONFIG_BLK_DEV_IDE_PMAC) 419 boot_dev = find_ide_boot(); 420 #endif 421 } 422 423 /* TODO: Merge the suspend-to-ram with the common code !!! 424 * currently, this is a stub implementation for suspend-to-disk 425 * only 426 */ 427 428 #ifdef CONFIG_SOFTWARE_SUSPEND 429 430 static int pmac_pm_prepare(suspend_state_t state) 431 { 432 printk(KERN_DEBUG "%s(%d)\n", __FUNCTION__, state); 433 434 return 0; 435 } 436 437 static int pmac_pm_enter(suspend_state_t state) 438 { 439 printk(KERN_DEBUG "%s(%d)\n", __FUNCTION__, state); 440 441 /* Giveup the lazy FPU & vec so we don't have to back them 442 * up from the low level code 443 */ 444 enable_kernel_fp(); 445 446 #ifdef CONFIG_ALTIVEC 447 if (cur_cpu_spec->cpu_features & CPU_FTR_ALTIVEC) 448 enable_kernel_altivec(); 449 #endif /* CONFIG_ALTIVEC */ 450 451 return 0; 452 } 453 454 static int pmac_pm_finish(suspend_state_t state) 455 { 456 printk(KERN_DEBUG "%s(%d)\n", __FUNCTION__, state); 457 458 /* Restore userland MMU context */ 459 set_context(current->active_mm->context.id, current->active_mm->pgd); 460 461 return 0; 462 } 463 464 static int pmac_pm_valid(suspend_state_t state) 465 { 466 switch (state) { 467 case PM_SUSPEND_DISK: 468 return 1; 469 /* can't do any other states via generic mechanism yet */ 470 default: 471 return 0; 472 } 473 } 474 475 static struct pm_ops pmac_pm_ops = { 476 .pm_disk_mode = PM_DISK_SHUTDOWN, 477 .prepare = pmac_pm_prepare, 478 .enter = pmac_pm_enter, 479 .finish = pmac_pm_finish, 480 .valid = pmac_pm_valid, 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 /* 597 * Early initialization. 598 */ 599 static void __init pmac_init_early(void) 600 { 601 /* Enable early btext debug if requested */ 602 if (strstr(cmd_line, "btextdbg")) { 603 udbg_adb_init_early(); 604 register_early_udbg_console(); 605 } 606 607 /* Probe motherboard chipset */ 608 pmac_feature_init(); 609 610 /* Initialize debug stuff */ 611 udbg_scc_init(!!strstr(cmd_line, "sccdbg")); 612 udbg_adb_init(!!strstr(cmd_line, "btextdbg")); 613 614 #ifdef CONFIG_PPC64 615 iommu_init_early_dart(); 616 #endif 617 } 618 619 /* 620 * pmac has no legacy IO, anything calling this function has to 621 * fail or bad things will happen 622 */ 623 static int pmac_check_legacy_ioport(unsigned int baseport) 624 { 625 return -ENODEV; 626 } 627 628 static int __init pmac_declare_of_platform_devices(void) 629 { 630 struct device_node *np; 631 632 if (machine_is(chrp)) 633 return -1; 634 635 if (!machine_is(powermac)) 636 return 0; 637 638 np = of_find_node_by_name(NULL, "valkyrie"); 639 if (np) 640 of_platform_device_create(np, "valkyrie", NULL); 641 np = of_find_node_by_name(NULL, "platinum"); 642 if (np) 643 of_platform_device_create(np, "platinum", NULL); 644 np = of_find_node_by_type(NULL, "smu"); 645 if (np) { 646 of_platform_device_create(np, "smu", NULL); 647 of_node_put(np); 648 } 649 650 return 0; 651 } 652 653 device_initcall(pmac_declare_of_platform_devices); 654 655 /* 656 * Called very early, MMU is off, device-tree isn't unflattened 657 */ 658 static int __init pmac_probe(void) 659 { 660 unsigned long root = of_get_flat_dt_root(); 661 662 if (!of_flat_dt_is_compatible(root, "Power Macintosh") && 663 !of_flat_dt_is_compatible(root, "MacRISC")) 664 return 0; 665 666 #ifdef CONFIG_PPC64 667 /* 668 * On U3, the DART (iommu) must be allocated now since it 669 * has an impact on htab_initialize (due to the large page it 670 * occupies having to be broken up so the DART itself is not 671 * part of the cacheable linar mapping 672 */ 673 alloc_dart_table(); 674 675 hpte_init_native(); 676 #endif 677 678 #ifdef CONFIG_PPC32 679 /* isa_io_base gets set in pmac_pci_init */ 680 ISA_DMA_THRESHOLD = ~0L; 681 DMA_MODE_READ = 1; 682 DMA_MODE_WRITE = 2; 683 684 #if defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_IDE_MODULE) 685 #ifdef CONFIG_BLK_DEV_IDE_PMAC 686 ppc_ide_md.ide_init_hwif = pmac_ide_init_hwif_ports; 687 ppc_ide_md.default_io_base = pmac_ide_get_base; 688 #endif /* CONFIG_BLK_DEV_IDE_PMAC */ 689 #endif /* defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_IDE_MODULE) */ 690 691 #endif /* CONFIG_PPC32 */ 692 693 #ifdef CONFIG_PMAC_SMU 694 /* 695 * SMU based G5s need some memory below 2Gb, at least the current 696 * driver needs that. We have to allocate it now. We allocate 4k 697 * (1 small page) for now. 698 */ 699 smu_cmdbuf_abs = lmb_alloc_base(4096, 4096, 0x80000000UL); 700 #endif /* CONFIG_PMAC_SMU */ 701 702 return 1; 703 } 704 705 #ifdef CONFIG_PPC64 706 /* Move that to pci.c */ 707 static int pmac_pci_probe_mode(struct pci_bus *bus) 708 { 709 struct device_node *node = bus->sysdata; 710 711 /* We need to use normal PCI probing for the AGP bus, 712 * since the device for the AGP bridge isn't in the tree. 713 */ 714 if (bus->self == NULL && (device_is_compatible(node, "u3-agp") || 715 device_is_compatible(node, "u4-pcie"))) 716 return PCI_PROBE_NORMAL; 717 return PCI_PROBE_DEVTREE; 718 } 719 #endif 720 721 define_machine(powermac) { 722 .name = "PowerMac", 723 .probe = pmac_probe, 724 .setup_arch = pmac_setup_arch, 725 .init_early = pmac_init_early, 726 .show_cpuinfo = pmac_show_cpuinfo, 727 .init_IRQ = pmac_pic_init, 728 .get_irq = NULL, /* changed later */ 729 .pci_irq_fixup = pmac_pci_irq_fixup, 730 .restart = pmac_restart, 731 .power_off = pmac_power_off, 732 .halt = pmac_halt, 733 .time_init = pmac_time_init, 734 .get_boot_time = pmac_get_boot_time, 735 .set_rtc_time = pmac_set_rtc_time, 736 .get_rtc_time = pmac_get_rtc_time, 737 .calibrate_decr = pmac_calibrate_decr, 738 .feature_call = pmac_do_feature_call, 739 .check_legacy_ioport = pmac_check_legacy_ioport, 740 .progress = udbg_progress, 741 #ifdef CONFIG_PPC64 742 .pci_probe_mode = pmac_pci_probe_mode, 743 .power_save = power4_idle, 744 .enable_pmcs = power4_enable_pmcs, 745 #ifdef CONFIG_KEXEC 746 .machine_kexec = default_machine_kexec, 747 .machine_kexec_prepare = default_machine_kexec_prepare, 748 .machine_crash_shutdown = default_machine_crash_shutdown, 749 #endif 750 #endif /* CONFIG_PPC64 */ 751 #ifdef CONFIG_PPC32 752 .pcibios_enable_device_hook = pmac_pci_enable_device_hook, 753 .pcibios_after_init = pmac_pcibios_after_init, 754 .phys_mem_access_prot = pci_phys_mem_access_prot, 755 #endif 756 #if defined(CONFIG_HOTPLUG_CPU) && defined(CONFIG_PPC64) 757 .cpu_die = generic_mach_cpu_die, 758 #endif 759 }; 760