arch/powerpc/platforms/powermac/setup.c

   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/pci.h>
  46 #include <linux/adb.h>
  47 #include <linux/cuda.h>
  48 #include <linux/pmu.h>
  49 #include <linux/irq.h>
  50 #include <linux/seq_file.h>
  51 #include <linux/root_dev.h>
  52 #include <linux/bitops.h>
  53 #include <linux/suspend.h>
  54 #include <linux/of_device.h>
  55 #include <linux/of_platform.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/kexec.h>
  64 #include <asm/pci-bridge.h>
  65 #include <asm/ohare.h>
  66 #include <asm/mediabay.h>
  67 #include <asm/machdep.h>
  68 #include <asm/dma.h>
  69 #include <asm/cputable.h>
  70 #include <asm/btext.h>
  71 #include <asm/pmac_feature.h>
  72 #include <asm/time.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/lmb.h>
  78 #include <asm/udbg.h>
  79
  80 #include "pmac.h"
  81
  82 #undef SHOW_GATWICK_IRQS
  83
  84 int ppc_override_l2cr = 0;
  85 int ppc_override_l2cr_value;
  86 int has_l2cache = 0;
  87
  88 int pmac_newworld;
  89
  90 static int current_root_goodness = -1;
  91
  92 extern struct machdep_calls pmac_md;
  93
  94 #define DEFAULT_ROOT_DEVICE Root_SDA1   /* sda1 - slightly silly choice */
  95
  96 #ifdef CONFIG_PPC64
  97 int sccdbg;
  98 #endif
  99
 100 extern void zs_kgdb_hook(int tty_num);
 101
 102 sys_ctrler_t sys_ctrler = SYS_CTRLER_UNKNOWN;
 103 EXPORT_SYMBOL(sys_ctrler);
 104
 105 #ifdef CONFIG_PMAC_SMU
 106 unsigned long smu_cmdbuf_abs;
 107 EXPORT_SYMBOL(smu_cmdbuf_abs);
 108 #endif
 109
 110 #ifdef CONFIG_SMP
 111 extern struct smp_ops_t psurge_smp_ops;
 112 extern struct smp_ops_t core99_smp_ops;
 113 #endif /* CONFIG_SMP */
 114
 115 static void pmac_show_cpuinfo(struct seq_file *m)
 116 {
 117         struct device_node *np;
 118         const char *pp;
 119         int plen;
 120         int mbmodel;
 121         unsigned int mbflags;
 122         char* mbname;
 123
 124         mbmodel = pmac_call_feature(PMAC_FTR_GET_MB_INFO, NULL,
 125                                     PMAC_MB_INFO_MODEL, 0);
 126         mbflags = pmac_call_feature(PMAC_FTR_GET_MB_INFO, NULL,
 127                                     PMAC_MB_INFO_FLAGS, 0);
 128         if (pmac_call_feature(PMAC_FTR_GET_MB_INFO, NULL, PMAC_MB_INFO_NAME,
 129                               (long) &mbname) != 0)
 130                 mbname = "Unknown";
 131
 132         /* find motherboard type */
 133         seq_printf(m, "machine\t\t: ");
 134         np = of_find_node_by_path("/");
 135         if (np != NULL) {
 136                 pp = of_get_property(np, "model", NULL);
 137                 if (pp != NULL)
 138                         seq_printf(m, "%s\n", pp);
 139                 else
 140                         seq_printf(m, "PowerMac\n");
 141                 pp = of_get_property(np, "compatible", &plen);
 142                 if (pp != NULL) {
 143                         seq_printf(m, "motherboard\t:");
 144                         while (plen > 0) {
 145                                 int l = strlen(pp) + 1;
 146                                 seq_printf(m, " %s", pp);
 147                                 plen -= l;
 148                                 pp += l;
 149                         }
 150                         seq_printf(m, "\n");
 151                 }
 152                 of_node_put(np);
 153         } else
 154                 seq_printf(m, "PowerMac\n");
 155
 156         /* print parsed model */
 157         seq_printf(m, "detected as\t: %d (%s)\n", mbmodel, mbname);
 158         seq_printf(m, "pmac flags\t: %08x\n", mbflags);
 159
 160         /* find l2 cache info */
 161         np = of_find_node_by_name(NULL, "l2-cache");
 162         if (np == NULL)
 163                 np = of_find_node_by_type(NULL, "cache");
 164         if (np != NULL) {
 165                 const unsigned int *ic =
 166                         of_get_property(np, "i-cache-size", NULL);
 167                 const unsigned int *dc =
 168                         of_get_property(np, "d-cache-size", NULL);
 169                 seq_printf(m, "L2 cache\t:");
 170                 has_l2cache = 1;
 171                 if (of_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 = of_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         struct device_node *dn = of_find_node_by_name(NULL, "via-cuda");
 196
 197         if (!dn)
 198                 return 0;
 199         of_node_put(dn);
 200         printk("WARNING ! Your machine is CUDA-based but your kernel\n");
 201         printk("          wasn't compiled with CONFIG_ADB_CUDA option !\n");
 202         return 0;
 203 }
 204 #endif
 205
 206 #ifndef CONFIG_ADB_PMU
 207 int find_via_pmu(void)
 208 {
 209         struct device_node *dn = of_find_node_by_name(NULL, "via-pmu");
 210
 211         if (!dn)
 212                 return 0;
 213         of_node_put(dn);
 214         printk("WARNING ! Your machine is PMU-based but your kernel\n");
 215         printk("          wasn't compiled with CONFIG_ADB_PMU option !\n");
 216         return 0;
 217 }
 218 #endif
 219
 220 #ifndef CONFIG_PMAC_SMU
 221 int smu_init(void)
 222 {
 223         /* should check and warn if SMU is present */
 224         return 0;
 225 }
 226 #endif
 227
 228 #ifdef CONFIG_PPC32
 229 static volatile u32 *sysctrl_regs;
 230
 231 static void __init ohare_init(void)
 232 {
 233         struct device_node *dn;
 234
 235         /* this area has the CPU identification register
 236            and some registers used by smp boards */
 237         sysctrl_regs = (volatile u32 *) ioremap(0xf8000000, 0x1000);
 238
 239         /*
 240          * Turn on the L2 cache.
 241          * We assume that we have a PSX memory controller iff
 242          * we have an ohare I/O controller.
 243          */
 244         dn = of_find_node_by_name(NULL, "ohare");
 245         if (dn) {
 246                 of_node_put(dn);
 247                 if (((sysctrl_regs[2] >> 24) & 0xf) >= 3) {
 248                         if (sysctrl_regs[4] & 0x10)
 249                                 sysctrl_regs[4] |= 0x04000020;
 250                         else
 251                                 sysctrl_regs[4] |= 0x04000000;
 252                         if(has_l2cache)
 253                                 printk(KERN_INFO "Level 2 cache enabled\n");
 254                 }
 255         }
 256 }
 257
 258 static void __init l2cr_init(void)
 259 {
 260         /* Checks "l2cr-value" property in the registry */
 261         if (cpu_has_feature(CPU_FTR_L2CR)) {
 262                 struct device_node *np = of_find_node_by_name(NULL, "cpus");
 263                 if (np == 0)
 264                         np = of_find_node_by_type(NULL, "cpu");
 265                 if (np != 0) {
 266                         const unsigned int *l2cr =
 267                                 of_get_property(np, "l2cr-value", NULL);
 268                         if (l2cr != 0) {
 269                                 ppc_override_l2cr = 1;
 270                                 ppc_override_l2cr_value = *l2cr;
 271                                 _set_L2CR(0);
 272                                 _set_L2CR(ppc_override_l2cr_value);
 273                         }
 274                         of_node_put(np);
 275                 }
 276         }
 277
 278         if (ppc_override_l2cr)
 279                 printk(KERN_INFO "L2CR overridden (0x%x), "
 280                        "backside cache is %s\n",
 281                        ppc_override_l2cr_value,
 282                        (ppc_override_l2cr_value & 0x80000000)
 283                                 ? "enabled" : "disabled");
 284 }
 285 #endif
 286
 287 static void __init pmac_setup_arch(void)
 288 {
 289         struct device_node *cpu, *ic;
 290         const int *fp;
 291         unsigned long pvr;
 292
 293         pvr = PVR_VER(mfspr(SPRN_PVR));
 294
 295         /* Set loops_per_jiffy to a half-way reasonable value,
 296            for use until calibrate_delay gets called. */
 297         loops_per_jiffy = 50000000 / HZ;
 298         cpu = of_find_node_by_type(NULL, "cpu");
 299         if (cpu != NULL) {
 300                 fp = of_get_property(cpu, "clock-frequency", NULL);
 301                 if (fp != NULL) {
 302                         if (pvr >= 0x30 && pvr < 0x80)
 303                                 /* PPC970 etc. */
 304                                 loops_per_jiffy = *fp / (3 * HZ);
 305                         else if (pvr == 4 || pvr >= 8)
 306                                 /* 604, G3, G4 etc. */
 307                                 loops_per_jiffy = *fp / HZ;
 308                         else
 309                                 /* 601, 603, etc. */
 310                                 loops_per_jiffy = *fp / (2 * HZ);
 311                 }
 312                 of_node_put(cpu);
 313         }
 314
 315         /* See if newworld or oldworld */
 316         for (ic = NULL; (ic = of_find_all_nodes(ic)) != NULL; )
 317                 if (of_get_property(ic, "interrupt-controller", NULL))
 318                         break;
 319         if (ic) {
 320                 pmac_newworld = 1;
 321                 of_node_put(ic);
 322         }
 323
 324         /* Lookup PCI hosts */
 325         pmac_pci_init();
 326
 327 #ifdef CONFIG_PPC32
 328         ohare_init();
 329         l2cr_init();
 330 #endif /* CONFIG_PPC32 */
 331
 332 #ifdef CONFIG_KGDB
 333         zs_kgdb_hook(0);
 334 #endif
 335
 336         find_via_cuda();
 337         find_via_pmu();
 338         smu_init();
 339
 340 #if defined(CONFIG_NVRAM) || defined(CONFIG_PPC64)
 341         pmac_nvram_init();
 342 #endif
 343
 344 #ifdef CONFIG_PPC32
 345 #ifdef CONFIG_BLK_DEV_INITRD
 346         if (initrd_start)
 347                 ROOT_DEV = Root_RAM0;
 348         else
 349 #endif
 350                 ROOT_DEV = DEFAULT_ROOT_DEVICE;
 351 #endif
 352
 353 #ifdef CONFIG_SMP
 354         /* Check for Core99 */
 355         ic = of_find_node_by_name(NULL, "uni-n");
 356         if (!ic)
 357                 ic = of_find_node_by_name(NULL, "u3");
 358         if (!ic)
 359                 ic = of_find_node_by_name(NULL, "u4");
 360         if (ic) {
 361                 of_node_put(ic);
 362                 smp_ops = &core99_smp_ops;
 363         }
 364 #ifdef CONFIG_PPC32
 365         else {
 366                 /*
 367                  * We have to set bits in cpu_possible_map here since the
 368                  * secondary CPU(s) aren't in the device tree, and
 369                  * setup_per_cpu_areas only allocates per-cpu data for
 370                  * CPUs in the cpu_possible_map.
 371                  */
 372                 int cpu;
 373
 374                 for (cpu = 1; cpu < 4 && cpu < NR_CPUS; ++cpu)
 375                         cpu_set(cpu, cpu_possible_map);
 376                 smp_ops = &psurge_smp_ops;
 377         }
 378 #endif
 379 #endif /* CONFIG_SMP */
 380
 381 #ifdef CONFIG_ADB
 382         if (strstr(cmd_line, "adb_sync")) {
 383                 extern int __adb_probe_sync;
 384                 __adb_probe_sync = 1;
 385         }
 386 #endif /* CONFIG_ADB */
 387 }
 388
 389 #ifdef CONFIG_SCSI
 390 void note_scsi_host(struct device_node *node, void *host)
 391 {
 392 }
 393 EXPORT_SYMBOL(note_scsi_host);
 394 #endif
 395
 396 static int initializing = 1;
 397
 398 static int pmac_late_init(void)
 399 {
 400         initializing = 0;
 401         /* this is udbg (which is __init) and we can later use it during
 402          * cpu hotplug (in smp_core99_kick_cpu) */
 403         ppc_md.progress = NULL;
 404         return 0;
 405 }
 406 machine_late_initcall(powermac, pmac_late_init);
 407
 408 /*
 409  * This is __init_refok because we check for "initializing" before
 410  * touching any of the __init sensitive things and "initializing"
 411  * will be false after __init time. This can't be __init because it
 412  * can be called whenever a disk is first accessed.
 413  */
 414 void __init_refok note_bootable_part(dev_t dev, int part, int goodness)
 415 {
 416         char *p;
 417
 418         if (!initializing)
 419                 return;
 420         if ((goodness <= current_root_goodness) &&
 421             ROOT_DEV != DEFAULT_ROOT_DEVICE)
 422                 return;
 423         p = strstr(boot_command_line, "root=");
 424         if (p != NULL && (p == boot_command_line || p[-1] == ' '))
 425                 return;
 426
 427         ROOT_DEV = dev + part;
 428         current_root_goodness = goodness;
 429 }
 430
 431 #ifdef CONFIG_ADB_CUDA
 432 static void cuda_restart(void)
 433 {
 434         struct adb_request req;
 435
 436         cuda_request(&req, NULL, 2, CUDA_PACKET, CUDA_RESET_SYSTEM);
 437         for (;;)
 438                 cuda_poll();
 439 }
 440
 441 static void cuda_shutdown(void)
 442 {
 443         struct adb_request req;
 444
 445         cuda_request(&req, NULL, 2, CUDA_PACKET, CUDA_POWERDOWN);
 446         for (;;)
 447                 cuda_poll();
 448 }
 449
 450 #else
 451 #define cuda_restart()
 452 #define cuda_shutdown()
 453 #endif
 454
 455 #ifndef CONFIG_ADB_PMU
 456 #define pmu_restart()
 457 #define pmu_shutdown()
 458 #endif
 459
 460 #ifndef CONFIG_PMAC_SMU
 461 #define smu_restart()
 462 #define smu_shutdown()
 463 #endif
 464
 465 static void pmac_restart(char *cmd)
 466 {
 467         switch (sys_ctrler) {
 468         case SYS_CTRLER_CUDA:
 469                 cuda_restart();
 470                 break;
 471         case SYS_CTRLER_PMU:
 472                 pmu_restart();
 473                 break;
 474         case SYS_CTRLER_SMU:
 475                 smu_restart();
 476                 break;
 477         default: ;
 478         }
 479 }
 480
 481 static void pmac_power_off(void)
 482 {
 483         switch (sys_ctrler) {
 484         case SYS_CTRLER_CUDA:
 485                 cuda_shutdown();
 486                 break;
 487         case SYS_CTRLER_PMU:
 488                 pmu_shutdown();
 489                 break;
 490         case SYS_CTRLER_SMU:
 491                 smu_shutdown();
 492                 break;
 493         default: ;
 494         }
 495 }
 496
 497 static void
 498 pmac_halt(void)
 499 {
 500         pmac_power_off();
 501 }
 502
 503 /*
 504  * Early initialization.
 505  */
 506 static void __init pmac_init_early(void)
 507 {
 508         /* Enable early btext debug if requested */
 509         if (strstr(cmd_line, "btextdbg")) {
 510                 udbg_adb_init_early();
 511                 register_early_udbg_console();
 512         }
 513
 514         /* Probe motherboard chipset */
 515         pmac_feature_init();
 516
 517         /* Initialize debug stuff */
 518         udbg_scc_init(!!strstr(cmd_line, "sccdbg"));
 519         udbg_adb_init(!!strstr(cmd_line, "btextdbg"));
 520
 521 #ifdef CONFIG_PPC64
 522         iommu_init_early_dart();
 523 #endif
 524 }
 525
 526 static int __init pmac_declare_of_platform_devices(void)
 527 {
 528         struct device_node *np;
 529
 530         if (machine_is(chrp))
 531                 return -1;
 532
 533         np = of_find_node_by_name(NULL, "valkyrie");
 534         if (np)
 535                 of_platform_device_create(np, "valkyrie", NULL);
 536         np = of_find_node_by_name(NULL, "platinum");
 537         if (np)
 538                 of_platform_device_create(np, "platinum", NULL);
 539         np = of_find_node_by_type(NULL, "smu");
 540         if (np) {
 541                 of_platform_device_create(np, "smu", NULL);
 542                 of_node_put(np);
 543         }
 544
 545         return 0;
 546 }
 547 machine_device_initcall(powermac, pmac_declare_of_platform_devices);
 548
 549 /*
 550  * Called very early, MMU is off, device-tree isn't unflattened
 551  */
 552 static int __init pmac_probe(void)
 553 {
 554         unsigned long root = of_get_flat_dt_root();
 555
 556         if (!of_flat_dt_is_compatible(root, "Power Macintosh") &&
 557             !of_flat_dt_is_compatible(root, "MacRISC"))
 558                 return 0;
 559
 560 #ifdef CONFIG_PPC64
 561         /*
 562          * On U3, the DART (iommu) must be allocated now since it
 563          * has an impact on htab_initialize (due to the large page it
 564          * occupies having to be broken up so the DART itself is not
 565          * part of the cacheable linar mapping
 566          */
 567         alloc_dart_table();
 568
 569         hpte_init_native();
 570 #endif
 571
 572 #ifdef CONFIG_PPC32
 573         /* isa_io_base gets set in pmac_pci_init */
 574         ISA_DMA_THRESHOLD = ~0L;
 575         DMA_MODE_READ = 1;
 576         DMA_MODE_WRITE = 2;
 577
 578 #if defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_IDE_MODULE)
 579 #ifdef CONFIG_BLK_DEV_IDE_PMAC
 580         ppc_ide_md.ide_init_hwif        = pmac_ide_init_hwif_ports;
 581         ppc_ide_md.default_io_base      = pmac_ide_get_base;
 582 #endif /* CONFIG_BLK_DEV_IDE_PMAC */
 583 #endif /* defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_IDE_MODULE) */
 584
 585 #endif /* CONFIG_PPC32 */
 586
 587 #ifdef CONFIG_PMAC_SMU
 588         /*
 589          * SMU based G5s need some memory below 2Gb, at least the current
 590          * driver needs that. We have to allocate it now. We allocate 4k
 591          * (1 small page) for now.
 592          */
 593         smu_cmdbuf_abs = lmb_alloc_base(4096, 4096, 0x80000000UL);
 594 #endif /* CONFIG_PMAC_SMU */
 595
 596         return 1;
 597 }
 598
 599 #ifdef CONFIG_PPC64
 600 /* Move that to pci.c */
 601 static int pmac_pci_probe_mode(struct pci_bus *bus)
 602 {
 603         struct device_node *node = bus->sysdata;
 604
 605         /* We need to use normal PCI probing for the AGP bus,
 606          * since the device for the AGP bridge isn't in the tree.
 607          * Same for the PCIe host on U4 and the HT host bridge.
 608          */
 609         if (bus->self == NULL && (of_device_is_compatible(node, "u3-agp") ||
 610                                   of_device_is_compatible(node, "u4-pcie") ||
 611                                   of_device_is_compatible(node, "u3-ht")))
 612                 return PCI_PROBE_NORMAL;
 613         return PCI_PROBE_DEVTREE;
 614 }
 615
 616 #ifdef CONFIG_HOTPLUG_CPU
 617 /* access per cpu vars from generic smp.c */
 618 DECLARE_PER_CPU(int, cpu_state);
 619
 620 static void pmac_cpu_die(void)
 621 {
 622         /*
 623          * turn off as much as possible, we'll be
 624          * kicked out as this will only be invoked
 625          * on core99 platforms for now ...
 626          */
 627
 628         printk(KERN_INFO "CPU#%d offline\n", smp_processor_id());
 629         __get_cpu_var(cpu_state) = CPU_DEAD;
 630         smp_wmb();
 631
 632         /*
 633          * during the path that leads here preemption is disabled,
 634          * reenable it now so that when coming up preempt count is
 635          * zero correctly
 636          */
 637         preempt_enable();
 638
 639         /*
 640          * hard-disable interrupts for the non-NAP case, the NAP code
 641          * needs to re-enable interrupts (but soft-disables them)
 642          */
 643         hard_irq_disable();
 644
 645         while (1) {
 646                 /* let's not take timer interrupts too often ... */
 647                 set_dec(0x7fffffff);
 648
 649                 /* should always be true at this point */
 650                 if (cpu_has_feature(CPU_FTR_CAN_NAP))
 651                         power4_cpu_offline_powersave();
 652                 else {
 653                         HMT_low();
 654                         HMT_very_low();
 655                 }
 656         }
 657 }
 658 #endif /* CONFIG_HOTPLUG_CPU */
 659
 660 #endif /* CONFIG_PPC64 */
 661
 662 define_machine(powermac) {
 663         .name                   = "PowerMac",
 664         .probe                  = pmac_probe,
 665         .setup_arch             = pmac_setup_arch,
 666         .init_early             = pmac_init_early,
 667         .show_cpuinfo           = pmac_show_cpuinfo,
 668         .init_IRQ               = pmac_pic_init,
 669         .get_irq                = NULL, /* changed later */
 670         .pci_irq_fixup          = pmac_pci_irq_fixup,
 671         .restart                = pmac_restart,
 672         .power_off              = pmac_power_off,
 673         .halt                   = pmac_halt,
 674         .time_init              = pmac_time_init,
 675         .get_boot_time          = pmac_get_boot_time,
 676         .set_rtc_time           = pmac_set_rtc_time,
 677         .get_rtc_time           = pmac_get_rtc_time,
 678         .calibrate_decr         = pmac_calibrate_decr,
 679         .feature_call           = pmac_do_feature_call,
 680         .progress               = udbg_progress,
 681 #ifdef CONFIG_PPC64
 682         .pci_probe_mode         = pmac_pci_probe_mode,
 683         .power_save             = power4_idle,
 684         .enable_pmcs            = power4_enable_pmcs,
 685 #ifdef CONFIG_KEXEC
 686         .machine_kexec          = default_machine_kexec,
 687         .machine_kexec_prepare  = default_machine_kexec_prepare,
 688         .machine_crash_shutdown = default_machine_crash_shutdown,
 689 #endif
 690 #endif /* CONFIG_PPC64 */
 691 #ifdef CONFIG_PPC32
 692         .pcibios_enable_device_hook = pmac_pci_enable_device_hook,
 693         .pcibios_after_init     = pmac_pcibios_after_init,
 694         .phys_mem_access_prot   = pci_phys_mem_access_prot,
 695 #endif
 696 #if defined(CONFIG_HOTPLUG_CPU) && defined(CONFIG_PPC64)
 697         .cpu_die                = pmac_cpu_die,
 698 #endif
 699 };