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/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/of_device.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 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 = (char *) 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 = (char *) 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 unsigned int *ic = (unsigned int *) 168 get_property(np, "i-cache-size", NULL); 169 unsigned int *dc = (unsigned int *) 170 get_property(np, "d-cache-size", NULL); 171 seq_printf(m, "L2 cache\t:"); 172 has_l2cache = 1; 173 if (get_property(np, "cache-unified", NULL) != 0 && dc) { 174 seq_printf(m, " %dK unified", *dc / 1024); 175 } else { 176 if (ic) 177 seq_printf(m, " %dK instruction", *ic / 1024); 178 if (dc) 179 seq_printf(m, "%s %dK data", 180 (ic? " +": ""), *dc / 1024); 181 } 182 pp = get_property(np, "ram-type", NULL); 183 if (pp) 184 seq_printf(m, " %s", pp); 185 seq_printf(m, "\n"); 186 of_node_put(np); 187 } 188 189 /* Indicate newworld/oldworld */ 190 seq_printf(m, "pmac-generation\t: %s\n", 191 pmac_newworld ? "NewWorld" : "OldWorld"); 192 } 193 194 #ifndef CONFIG_ADB_CUDA 195 int find_via_cuda(void) 196 { 197 if (!find_devices("via-cuda")) 198 return 0; 199 printk("WARNING ! Your machine is CUDA-based but your kernel\n"); 200 printk(" wasn't compiled with CONFIG_ADB_CUDA option !\n"); 201 return 0; 202 } 203 #endif 204 205 #ifndef CONFIG_ADB_PMU 206 int find_via_pmu(void) 207 { 208 if (!find_devices("via-pmu")) 209 return 0; 210 printk("WARNING ! Your machine is PMU-based but your kernel\n"); 211 printk(" wasn't compiled with CONFIG_ADB_PMU option !\n"); 212 return 0; 213 } 214 #endif 215 216 #ifndef CONFIG_PMAC_SMU 217 int smu_init(void) 218 { 219 /* should check and warn if SMU is present */ 220 return 0; 221 } 222 #endif 223 224 #ifdef CONFIG_PPC32 225 static volatile u32 *sysctrl_regs; 226 227 static void __init ohare_init(void) 228 { 229 /* this area has the CPU identification register 230 and some registers used by smp boards */ 231 sysctrl_regs = (volatile u32 *) ioremap(0xf8000000, 0x1000); 232 233 /* 234 * Turn on the L2 cache. 235 * We assume that we have a PSX memory controller iff 236 * we have an ohare I/O controller. 237 */ 238 if (find_devices("ohare") != NULL) { 239 if (((sysctrl_regs[2] >> 24) & 0xf) >= 3) { 240 if (sysctrl_regs[4] & 0x10) 241 sysctrl_regs[4] |= 0x04000020; 242 else 243 sysctrl_regs[4] |= 0x04000000; 244 if(has_l2cache) 245 printk(KERN_INFO "Level 2 cache enabled\n"); 246 } 247 } 248 } 249 250 static void __init l2cr_init(void) 251 { 252 /* Checks "l2cr-value" property in the registry */ 253 if (cpu_has_feature(CPU_FTR_L2CR)) { 254 struct device_node *np = find_devices("cpus"); 255 if (np == 0) 256 np = find_type_devices("cpu"); 257 if (np != 0) { 258 unsigned int *l2cr = (unsigned int *) 259 get_property(np, "l2cr-value", NULL); 260 if (l2cr != 0) { 261 ppc_override_l2cr = 1; 262 ppc_override_l2cr_value = *l2cr; 263 _set_L2CR(0); 264 _set_L2CR(ppc_override_l2cr_value); 265 } 266 } 267 } 268 269 if (ppc_override_l2cr) 270 printk(KERN_INFO "L2CR overridden (0x%x), " 271 "backside cache is %s\n", 272 ppc_override_l2cr_value, 273 (ppc_override_l2cr_value & 0x80000000) 274 ? "enabled" : "disabled"); 275 } 276 #endif 277 278 static void __init pmac_setup_arch(void) 279 { 280 struct device_node *cpu, *ic; 281 int *fp; 282 unsigned long pvr; 283 284 pvr = PVR_VER(mfspr(SPRN_PVR)); 285 286 /* Set loops_per_jiffy to a half-way reasonable value, 287 for use until calibrate_delay gets called. */ 288 loops_per_jiffy = 50000000 / HZ; 289 cpu = of_find_node_by_type(NULL, "cpu"); 290 if (cpu != NULL) { 291 fp = (int *) get_property(cpu, "clock-frequency", NULL); 292 if (fp != NULL) { 293 if (pvr >= 0x30 && pvr < 0x80) 294 /* PPC970 etc. */ 295 loops_per_jiffy = *fp / (3 * HZ); 296 else if (pvr == 4 || pvr >= 8) 297 /* 604, G3, G4 etc. */ 298 loops_per_jiffy = *fp / HZ; 299 else 300 /* 601, 603, etc. */ 301 loops_per_jiffy = *fp / (2 * HZ); 302 } 303 of_node_put(cpu); 304 } 305 306 /* See if newworld or oldworld */ 307 for (ic = NULL; (ic = of_find_all_nodes(ic)) != NULL; ) 308 if (get_property(ic, "interrupt-controller", NULL)) 309 break; 310 if (ic) { 311 pmac_newworld = 1; 312 of_node_put(ic); 313 } 314 315 /* Lookup PCI hosts */ 316 pmac_pci_init(); 317 318 #ifdef CONFIG_PPC32 319 ohare_init(); 320 l2cr_init(); 321 #endif /* CONFIG_PPC32 */ 322 323 #ifdef CONFIG_KGDB 324 zs_kgdb_hook(0); 325 #endif 326 327 find_via_cuda(); 328 find_via_pmu(); 329 smu_init(); 330 331 #if defined(CONFIG_NVRAM) || defined(CONFIG_PPC64) 332 pmac_nvram_init(); 333 #endif 334 335 #ifdef CONFIG_PPC32 336 #ifdef CONFIG_BLK_DEV_INITRD 337 if (initrd_start) 338 ROOT_DEV = Root_RAM0; 339 else 340 #endif 341 ROOT_DEV = DEFAULT_ROOT_DEVICE; 342 #endif 343 344 #ifdef CONFIG_SMP 345 /* Check for Core99 */ 346 if (find_devices("uni-n") || find_devices("u3") || find_devices("u4")) 347 smp_ops = &core99_smp_ops; 348 #ifdef CONFIG_PPC32 349 else 350 smp_ops = &psurge_smp_ops; 351 #endif 352 #endif /* CONFIG_SMP */ 353 354 #ifdef CONFIG_ADB 355 if (strstr(cmd_line, "adb_sync")) { 356 extern int __adb_probe_sync; 357 __adb_probe_sync = 1; 358 } 359 #endif /* CONFIG_ADB */ 360 } 361 362 char *bootpath; 363 char *bootdevice; 364 void *boot_host; 365 int boot_target; 366 int boot_part; 367 extern dev_t boot_dev; 368 369 #ifdef CONFIG_SCSI 370 void __init note_scsi_host(struct device_node *node, void *host) 371 { 372 int l; 373 char *p; 374 375 l = strlen(node->full_name); 376 if (bootpath != NULL && bootdevice != NULL 377 && strncmp(node->full_name, bootdevice, l) == 0 378 && (bootdevice[l] == '/' || bootdevice[l] == 0)) { 379 boot_host = host; 380 /* 381 * There's a bug in OF 1.0.5. (Why am I not surprised.) 382 * If you pass a path like scsi/sd@1:0 to canon, it returns 383 * something like /bandit@F2000000/gc@10/53c94@10000/sd@0,0 384 * That is, the scsi target number doesn't get preserved. 385 * So we pick the target number out of bootpath and use that. 386 */ 387 p = strstr(bootpath, "/sd@"); 388 if (p != NULL) { 389 p += 4; 390 boot_target = simple_strtoul(p, NULL, 10); 391 p = strchr(p, ':'); 392 if (p != NULL) 393 boot_part = simple_strtoul(p + 1, NULL, 10); 394 } 395 } 396 } 397 EXPORT_SYMBOL(note_scsi_host); 398 #endif 399 400 #if defined(CONFIG_BLK_DEV_IDE) && defined(CONFIG_BLK_DEV_IDE_PMAC) 401 static dev_t __init find_ide_boot(void) 402 { 403 char *p; 404 int n; 405 dev_t __init pmac_find_ide_boot(char *bootdevice, int n); 406 407 if (bootdevice == NULL) 408 return 0; 409 p = strrchr(bootdevice, '/'); 410 if (p == NULL) 411 return 0; 412 n = p - bootdevice; 413 414 return pmac_find_ide_boot(bootdevice, n); 415 } 416 #endif /* CONFIG_BLK_DEV_IDE && CONFIG_BLK_DEV_IDE_PMAC */ 417 418 static void __init find_boot_device(void) 419 { 420 #if defined(CONFIG_BLK_DEV_IDE) && defined(CONFIG_BLK_DEV_IDE_PMAC) 421 boot_dev = find_ide_boot(); 422 #endif 423 } 424 425 /* TODO: Merge the suspend-to-ram with the common code !!! 426 * currently, this is a stub implementation for suspend-to-disk 427 * only 428 */ 429 430 #ifdef CONFIG_SOFTWARE_SUSPEND 431 432 static int pmac_pm_prepare(suspend_state_t state) 433 { 434 printk(KERN_DEBUG "%s(%d)\n", __FUNCTION__, state); 435 436 return 0; 437 } 438 439 static int pmac_pm_enter(suspend_state_t state) 440 { 441 printk(KERN_DEBUG "%s(%d)\n", __FUNCTION__, state); 442 443 /* Giveup the lazy FPU & vec so we don't have to back them 444 * up from the low level code 445 */ 446 enable_kernel_fp(); 447 448 #ifdef CONFIG_ALTIVEC 449 if (cur_cpu_spec->cpu_features & CPU_FTR_ALTIVEC) 450 enable_kernel_altivec(); 451 #endif /* CONFIG_ALTIVEC */ 452 453 return 0; 454 } 455 456 static int pmac_pm_finish(suspend_state_t state) 457 { 458 printk(KERN_DEBUG "%s(%d)\n", __FUNCTION__, state); 459 460 /* Restore userland MMU context */ 461 set_context(current->active_mm->context, current->active_mm->pgd); 462 463 return 0; 464 } 465 466 static struct pm_ops pmac_pm_ops = { 467 .pm_disk_mode = PM_DISK_SHUTDOWN, 468 .prepare = pmac_pm_prepare, 469 .enter = pmac_pm_enter, 470 .finish = pmac_pm_finish, 471 }; 472 473 #endif /* CONFIG_SOFTWARE_SUSPEND */ 474 475 static int initializing = 1; 476 477 static int pmac_late_init(void) 478 { 479 initializing = 0; 480 #ifdef CONFIG_SOFTWARE_SUSPEND 481 pm_set_ops(&pmac_pm_ops); 482 #endif /* CONFIG_SOFTWARE_SUSPEND */ 483 return 0; 484 } 485 486 late_initcall(pmac_late_init); 487 488 /* can't be __init - can be called whenever a disk is first accessed */ 489 void note_bootable_part(dev_t dev, int part, int goodness) 490 { 491 static int found_boot = 0; 492 char *p; 493 494 if (!initializing) 495 return; 496 if ((goodness <= current_root_goodness) && 497 ROOT_DEV != DEFAULT_ROOT_DEVICE) 498 return; 499 p = strstr(saved_command_line, "root="); 500 if (p != NULL && (p == saved_command_line || p[-1] == ' ')) 501 return; 502 503 if (!found_boot) { 504 find_boot_device(); 505 found_boot = 1; 506 } 507 if (!boot_dev || dev == boot_dev) { 508 ROOT_DEV = dev + part; 509 boot_dev = 0; 510 current_root_goodness = goodness; 511 } 512 } 513 514 #ifdef CONFIG_ADB_CUDA 515 static void cuda_restart(void) 516 { 517 struct adb_request req; 518 519 cuda_request(&req, NULL, 2, CUDA_PACKET, CUDA_RESET_SYSTEM); 520 for (;;) 521 cuda_poll(); 522 } 523 524 static void cuda_shutdown(void) 525 { 526 struct adb_request req; 527 528 cuda_request(&req, NULL, 2, CUDA_PACKET, CUDA_POWERDOWN); 529 for (;;) 530 cuda_poll(); 531 } 532 533 #else 534 #define cuda_restart() 535 #define cuda_shutdown() 536 #endif 537 538 #ifndef CONFIG_ADB_PMU 539 #define pmu_restart() 540 #define pmu_shutdown() 541 #endif 542 543 #ifndef CONFIG_PMAC_SMU 544 #define smu_restart() 545 #define smu_shutdown() 546 #endif 547 548 static void pmac_restart(char *cmd) 549 { 550 switch (sys_ctrler) { 551 case SYS_CTRLER_CUDA: 552 cuda_restart(); 553 break; 554 case SYS_CTRLER_PMU: 555 pmu_restart(); 556 break; 557 case SYS_CTRLER_SMU: 558 smu_restart(); 559 break; 560 default: ; 561 } 562 } 563 564 static void pmac_power_off(void) 565 { 566 switch (sys_ctrler) { 567 case SYS_CTRLER_CUDA: 568 cuda_shutdown(); 569 break; 570 case SYS_CTRLER_PMU: 571 pmu_shutdown(); 572 break; 573 case SYS_CTRLER_SMU: 574 smu_shutdown(); 575 break; 576 default: ; 577 } 578 } 579 580 static void 581 pmac_halt(void) 582 { 583 pmac_power_off(); 584 } 585 586 /* 587 * Early initialization. 588 */ 589 static void __init pmac_init_early(void) 590 { 591 #ifdef CONFIG_PPC64 592 /* Initialize hash table, from now on, we can take hash faults 593 * and call ioremap 594 */ 595 hpte_init_native(); 596 #endif 597 598 /* Enable early btext debug if requested */ 599 if (strstr(cmd_line, "btextdbg")) { 600 udbg_adb_init_early(); 601 register_early_udbg_console(); 602 } 603 604 /* Probe motherboard chipset */ 605 pmac_feature_init(); 606 607 /* Initialize debug stuff */ 608 udbg_scc_init(!!strstr(cmd_line, "sccdbg")); 609 udbg_adb_init(!!strstr(cmd_line, "btextdbg")); 610 611 #ifdef CONFIG_PPC64 612 /* Setup interrupt mapping options */ 613 ppc64_interrupt_controller = IC_OPEN_PIC; 614 615 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 #endif 675 676 #ifdef CONFIG_PPC32 677 /* isa_io_base gets set in pmac_pci_init */ 678 isa_mem_base = PMAC_ISA_MEM_BASE; 679 pci_dram_offset = PMAC_PCI_DRAM_OFFSET; 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 .pcibios_fixup = pmac_pcibios_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