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 #include <linux/lmb.h>
  57
  58 #include <asm/reg.h>
  59 #include <asm/sections.h>
  60 #include <asm/prom.h>
  61 #include <asm/system.h>
  62 #include <asm/pgtable.h>
  63 #include <asm/io.h>
  64 #include <asm/kexec.h>
  65 #include <asm/pci-bridge.h>
  66 #include <asm/ohare.h>
  67 #include <asm/mediabay.h>
  68 #include <asm/machdep.h>
  69 #include <asm/dma.h>
  70 #include <asm/cputable.h>
  71 #include <asm/btext.h>
  72 #include <asm/pmac_feature.h>
  73 #include <asm/time.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/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_NVRAM_MODULE) || \
 341     defined(CONFIG_PPC64)
 342         pmac_nvram_init();
 343 #endif
 344
 345 #ifdef CONFIG_PPC32
 346 #ifdef CONFIG_BLK_DEV_INITRD
 347         if (initrd_start)
 348                 ROOT_DEV = Root_RAM0;
 349         else
 350 #endif
 351                 ROOT_DEV = DEFAULT_ROOT_DEVICE;
 352 #endif
 353
 354 #ifdef CONFIG_SMP
 355         /* Check for Core99 */
 356         ic = of_find_node_by_name(NULL, "uni-n");
 357         if (!ic)
 358                 ic = of_find_node_by_name(NULL, "u3");
 359         if (!ic)
 360                 ic = of_find_node_by_name(NULL, "u4");
 361         if (ic) {
 362                 of_node_put(ic);
 363                 smp_ops = &core99_smp_ops;
 364         }
 365 #ifdef CONFIG_PPC32
 366         else {
 367                 /*
 368                  * We have to set bits in cpu_possible_map here since the
 369                  * secondary CPU(s) aren't in the device tree, and
 370                  * setup_per_cpu_areas only allocates per-cpu data for
 371                  * CPUs in the cpu_possible_map.
 372                  */
 373                 int cpu;
 374
 375                 for (cpu = 1; cpu < 4 && cpu < NR_CPUS; ++cpu)
 376                         cpu_set(cpu, cpu_possible_map);
 377                 smp_ops = &psurge_smp_ops;
 378         }
 379 #endif
 380 #endif /* CONFIG_SMP */
 381
 382 #ifdef CONFIG_ADB
 383         if (strstr(cmd_line, "adb_sync")) {
 384                 extern int __adb_probe_sync;
 385                 __adb_probe_sync = 1;
 386         }
 387 #endif /* CONFIG_ADB */
 388 }
 389
 390 #ifdef CONFIG_SCSI
 391 void note_scsi_host(struct device_node *node, void *host)
 392 {
 393 }
 394 EXPORT_SYMBOL(note_scsi_host);
 395 #endif
 396
 397 static int initializing = 1;
 398
 399 static int pmac_late_init(void)
 400 {
 401         initializing = 0;
 402         /* this is udbg (which is __init) and we can later use it during
 403          * cpu hotplug (in smp_core99_kick_cpu) */
 404         ppc_md.progress = NULL;
 405         return 0;
 406 }
 407 machine_late_initcall(powermac, pmac_late_init);
 408
 409 /*
 410  * This is __init_refok because we check for "initializing" before
 411  * touching any of the __init sensitive things and "initializing"
 412  * will be false after __init time. This can't be __init because it
 413  * can be called whenever a disk is first accessed.
 414  */
 415 void __init_refok note_bootable_part(dev_t dev, int part, int goodness)
 416 {
 417         char *p;
 418
 419         if (!initializing)
 420                 return;
 421         if ((goodness <= current_root_goodness) &&
 422             ROOT_DEV != DEFAULT_ROOT_DEVICE)
 423                 return;
 424         p = strstr(boot_command_line, "root=");
 425         if (p != NULL && (p == boot_command_line || p[-1] == ' '))
 426                 return;
 427
 428         ROOT_DEV = dev + part;
 429         current_root_goodness = goodness;
 430 }
 431
 432 #ifdef CONFIG_ADB_CUDA
 433 static void cuda_restart(void)
 434 {
 435         struct adb_request req;
 436
 437         cuda_request(&req, NULL, 2, CUDA_PACKET, CUDA_RESET_SYSTEM);
 438         for (;;)
 439                 cuda_poll();
 440 }
 441
 442 static void cuda_shutdown(void)
 443 {
 444         struct adb_request req;
 445
 446         cuda_request(&req, NULL, 2, CUDA_PACKET, CUDA_POWERDOWN);
 447         for (;;)
 448                 cuda_poll();
 449 }
 450
 451 #else
 452 #define cuda_restart()
 453 #define cuda_shutdown()
 454 #endif
 455
 456 #ifndef CONFIG_ADB_PMU
 457 #define pmu_restart()
 458 #define pmu_shutdown()
 459 #endif
 460
 461 #ifndef CONFIG_PMAC_SMU
 462 #define smu_restart()
 463 #define smu_shutdown()
 464 #endif
 465
 466 static void pmac_restart(char *cmd)
 467 {
 468         switch (sys_ctrler) {
 469         case SYS_CTRLER_CUDA:
 470                 cuda_restart();
 471                 break;
 472         case SYS_CTRLER_PMU:
 473                 pmu_restart();
 474                 break;
 475         case SYS_CTRLER_SMU:
 476                 smu_restart();
 477                 break;
 478         default: ;
 479         }
 480 }
 481
 482 static void pmac_power_off(void)
 483 {
 484         switch (sys_ctrler) {
 485         case SYS_CTRLER_CUDA:
 486                 cuda_shutdown();
 487                 break;
 488         case SYS_CTRLER_PMU:
 489                 pmu_shutdown();
 490                 break;
 491         case SYS_CTRLER_SMU:
 492                 smu_shutdown();
 493                 break;
 494         default: ;
 495         }
 496 }
 497
 498 static void
 499 pmac_halt(void)
 500 {
 501         pmac_power_off();
 502 }
 503
 504 /*
 505  * Early initialization.
 506  */
 507 static void __init pmac_init_early(void)
 508 {
 509         /* Enable early btext debug if requested */
 510         if (strstr(cmd_line, "btextdbg")) {
 511                 udbg_adb_init_early();
 512                 register_early_udbg_console();
 513         }
 514
 515         /* Probe motherboard chipset */
 516         pmac_feature_init();
 517
 518         /* Initialize debug stuff */
 519         udbg_scc_init(!!strstr(cmd_line, "sccdbg"));
 520         udbg_adb_init(!!strstr(cmd_line, "btextdbg"));
 521
 522 #ifdef CONFIG_PPC64
 523         iommu_init_early_dart();
 524 #endif
 525 }
 526
 527 static int __init pmac_declare_of_platform_devices(void)
 528 {
 529         struct device_node *np;
 530
 531         if (machine_is(chrp))
 532                 return -1;
 533
 534         np = of_find_node_by_name(NULL, "valkyrie");
 535         if (np)
 536                 of_platform_device_create(np, "valkyrie", NULL);
 537         np = of_find_node_by_name(NULL, "platinum");
 538         if (np)
 539                 of_platform_device_create(np, "platinum", NULL);
 540         np = of_find_node_by_type(NULL, "smu");
 541         if (np) {
 542                 of_platform_device_create(np, "smu", NULL);
 543                 of_node_put(np);
 544         }
 545
 546         return 0;
 547 }
 548 machine_device_initcall(powermac, pmac_declare_of_platform_devices);
 549
 550 /*
 551  * Called very early, MMU is off, device-tree isn't unflattened
 552  */
 553 static int __init pmac_probe(void)
 554 {
 555         unsigned long root = of_get_flat_dt_root();
 556
 557         if (!of_flat_dt_is_compatible(root, "Power Macintosh") &&
 558             !of_flat_dt_is_compatible(root, "MacRISC"))
 559                 return 0;
 560
 561 #ifdef CONFIG_PPC64
 562         /*
 563          * On U3, the DART (iommu) must be allocated now since it
 564          * has an impact on htab_initialize (due to the large page it
 565          * occupies having to be broken up so the DART itself is not
 566          * part of the cacheable linar mapping
 567          */
 568         alloc_dart_table();
 569
 570         hpte_init_native();
 571 #endif
 572
 573 #ifdef CONFIG_PPC32
 574         /* isa_io_base gets set in pmac_pci_init */
 575         ISA_DMA_THRESHOLD = ~0L;
 576         DMA_MODE_READ = 1;
 577         DMA_MODE_WRITE = 2;
 578 #endif /* CONFIG_PPC32 */
 579
 580 #ifdef CONFIG_PMAC_SMU
 581         /*
 582          * SMU based G5s need some memory below 2Gb, at least the current
 583          * driver needs that. We have to allocate it now. We allocate 4k
 584          * (1 small page) for now.
 585          */
 586         smu_cmdbuf_abs = lmb_alloc_base(4096, 4096, 0x80000000UL);
 587 #endif /* CONFIG_PMAC_SMU */
 588
 589         return 1;
 590 }
 591
 592 #ifdef CONFIG_PPC64
 593 /* Move that to pci.c */
 594 static int pmac_pci_probe_mode(struct pci_bus *bus)
 595 {
 596         struct device_node *node = bus->sysdata;
 597
 598         /* We need to use normal PCI probing for the AGP bus,
 599          * since the device for the AGP bridge isn't in the tree.
 600          * Same for the PCIe host on U4 and the HT host bridge.
 601          */
 602         if (bus->self == NULL && (of_device_is_compatible(node, "u3-agp") ||
 603                                   of_device_is_compatible(node, "u4-pcie") ||
 604                                   of_device_is_compatible(node, "u3-ht")))
 605                 return PCI_PROBE_NORMAL;
 606         return PCI_PROBE_DEVTREE;
 607 }
 608
 609 #ifdef CONFIG_HOTPLUG_CPU
 610 /* access per cpu vars from generic smp.c */
 611 DECLARE_PER_CPU(int, cpu_state);
 612
 613 static void pmac_cpu_die(void)
 614 {
 615         /*
 616          * turn off as much as possible, we'll be
 617          * kicked out as this will only be invoked
 618          * on core99 platforms for now ...
 619          */
 620
 621         printk(KERN_INFO "CPU#%d offline\n", smp_processor_id());
 622         __get_cpu_var(cpu_state) = CPU_DEAD;
 623         smp_wmb();
 624
 625         /*
 626          * during the path that leads here preemption is disabled,
 627          * reenable it now so that when coming up preempt count is
 628          * zero correctly
 629          */
 630         preempt_enable();
 631
 632         /*
 633          * hard-disable interrupts for the non-NAP case, the NAP code
 634          * needs to re-enable interrupts (but soft-disables them)
 635          */
 636         hard_irq_disable();
 637
 638         while (1) {
 639                 /* let's not take timer interrupts too often ... */
 640                 set_dec(0x7fffffff);
 641
 642                 /* should always be true at this point */
 643                 if (cpu_has_feature(CPU_FTR_CAN_NAP))
 644                         power4_cpu_offline_powersave();
 645                 else {
 646                         HMT_low();
 647                         HMT_very_low();
 648                 }
 649         }
 650 }
 651 #endif /* CONFIG_HOTPLUG_CPU */
 652
 653 #endif /* CONFIG_PPC64 */
 654
 655 define_machine(powermac) {
 656         .name                   = "PowerMac",
 657         .probe                  = pmac_probe,
 658         .setup_arch             = pmac_setup_arch,
 659         .init_early             = pmac_init_early,
 660         .show_cpuinfo           = pmac_show_cpuinfo,
 661         .init_IRQ               = pmac_pic_init,
 662         .get_irq                = NULL, /* changed later */
 663         .pci_irq_fixup          = pmac_pci_irq_fixup,
 664         .restart                = pmac_restart,
 665         .power_off              = pmac_power_off,
 666         .halt                   = pmac_halt,
 667         .time_init              = pmac_time_init,
 668         .get_boot_time          = pmac_get_boot_time,
 669         .set_rtc_time           = pmac_set_rtc_time,
 670         .get_rtc_time           = pmac_get_rtc_time,
 671         .calibrate_decr         = pmac_calibrate_decr,
 672         .feature_call           = pmac_do_feature_call,
 673         .progress               = udbg_progress,
 674 #ifdef CONFIG_PPC64
 675         .pci_probe_mode         = pmac_pci_probe_mode,
 676         .power_save             = power4_idle,
 677         .enable_pmcs            = power4_enable_pmcs,
 678 #ifdef CONFIG_KEXEC
 679         .machine_kexec          = default_machine_kexec,
 680         .machine_kexec_prepare  = default_machine_kexec_prepare,
 681         .machine_crash_shutdown = default_machine_crash_shutdown,
 682 #endif
 683 #endif /* CONFIG_PPC64 */
 684 #ifdef CONFIG_PPC32
 685         .pcibios_enable_device_hook = pmac_pci_enable_device_hook,
 686         .pcibios_after_init     = pmac_pcibios_after_init,
 687         .phys_mem_access_prot   = pci_phys_mem_access_prot,
 688 #endif
 689 #if defined(CONFIG_HOTPLUG_CPU) && defined(CONFIG_PPC64)
 690         .cpu_die                = pmac_cpu_die,
 691 #endif
 692 };