[POWERPC] Make pci_read_irq_line the default
[linux-2.6] / 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/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/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 #include <asm/udbg.h>
98 int sccdbg;
99 #endif
100
101 extern void zs_kgdb_hook(int tty_num);
102
103 sys_ctrler_t sys_ctrler = SYS_CTRLER_UNKNOWN;
104 EXPORT_SYMBOL(sys_ctrler);
105
106 #ifdef CONFIG_PMAC_SMU
107 unsigned long smu_cmdbuf_abs;
108 EXPORT_SYMBOL(smu_cmdbuf_abs);
109 #endif
110
111 #ifdef CONFIG_SMP
112 extern struct smp_ops_t psurge_smp_ops;
113 extern struct smp_ops_t core99_smp_ops;
114 #endif /* CONFIG_SMP */
115
116 static void pmac_show_cpuinfo(struct seq_file *m)
117 {
118         struct device_node *np;
119         const char *pp;
120         int plen;
121         int mbmodel;
122         unsigned int mbflags;
123         char* mbname;
124
125         mbmodel = pmac_call_feature(PMAC_FTR_GET_MB_INFO, NULL,
126                                     PMAC_MB_INFO_MODEL, 0);
127         mbflags = pmac_call_feature(PMAC_FTR_GET_MB_INFO, NULL,
128                                     PMAC_MB_INFO_FLAGS, 0);
129         if (pmac_call_feature(PMAC_FTR_GET_MB_INFO, NULL, PMAC_MB_INFO_NAME,
130                               (long) &mbname) != 0)
131                 mbname = "Unknown";
132
133         /* find motherboard type */
134         seq_printf(m, "machine\t\t: ");
135         np = of_find_node_by_path("/");
136         if (np != NULL) {
137                 pp = get_property(np, "model", NULL);
138                 if (pp != NULL)
139                         seq_printf(m, "%s\n", pp);
140                 else
141                         seq_printf(m, "PowerMac\n");
142                 pp = get_property(np, "compatible", &plen);
143                 if (pp != NULL) {
144                         seq_printf(m, "motherboard\t:");
145                         while (plen > 0) {
146                                 int l = strlen(pp) + 1;
147                                 seq_printf(m, " %s", pp);
148                                 plen -= l;
149                                 pp += l;
150                         }
151                         seq_printf(m, "\n");
152                 }
153                 of_node_put(np);
154         } else
155                 seq_printf(m, "PowerMac\n");
156
157         /* print parsed model */
158         seq_printf(m, "detected as\t: %d (%s)\n", mbmodel, mbname);
159         seq_printf(m, "pmac flags\t: %08x\n", mbflags);
160
161         /* find l2 cache info */
162         np = of_find_node_by_name(NULL, "l2-cache");
163         if (np == NULL)
164                 np = of_find_node_by_type(NULL, "cache");
165         if (np != NULL) {
166                 const unsigned int *ic = get_property(np, "i-cache-size", NULL);
167                 const unsigned int *dc = get_property(np, "d-cache-size", NULL);
168                 seq_printf(m, "L2 cache\t:");
169                 has_l2cache = 1;
170                 if (get_property(np, "cache-unified", NULL) != 0 && dc) {
171                         seq_printf(m, " %dK unified", *dc / 1024);
172                 } else {
173                         if (ic)
174                                 seq_printf(m, " %dK instruction", *ic / 1024);
175                         if (dc)
176                                 seq_printf(m, "%s %dK data",
177                                            (ic? " +": ""), *dc / 1024);
178                 }
179                 pp = get_property(np, "ram-type", NULL);
180                 if (pp)
181                         seq_printf(m, " %s", pp);
182                 seq_printf(m, "\n");
183                 of_node_put(np);
184         }
185
186         /* Indicate newworld/oldworld */
187         seq_printf(m, "pmac-generation\t: %s\n",
188                    pmac_newworld ? "NewWorld" : "OldWorld");
189 }
190
191 #ifndef CONFIG_ADB_CUDA
192 int find_via_cuda(void)
193 {
194         if (!find_devices("via-cuda"))
195                 return 0;
196         printk("WARNING ! Your machine is CUDA-based but your kernel\n");
197         printk("          wasn't compiled with CONFIG_ADB_CUDA option !\n");
198         return 0;
199 }
200 #endif
201
202 #ifndef CONFIG_ADB_PMU
203 int find_via_pmu(void)
204 {
205         if (!find_devices("via-pmu"))
206                 return 0;
207         printk("WARNING ! Your machine is PMU-based but your kernel\n");
208         printk("          wasn't compiled with CONFIG_ADB_PMU option !\n");
209         return 0;
210 }
211 #endif
212
213 #ifndef CONFIG_PMAC_SMU
214 int smu_init(void)
215 {
216         /* should check and warn if SMU is present */
217         return 0;
218 }
219 #endif
220
221 #ifdef CONFIG_PPC32
222 static volatile u32 *sysctrl_regs;
223
224 static void __init ohare_init(void)
225 {
226         /* this area has the CPU identification register
227            and some registers used by smp boards */
228         sysctrl_regs = (volatile u32 *) ioremap(0xf8000000, 0x1000);
229
230         /*
231          * Turn on the L2 cache.
232          * We assume that we have a PSX memory controller iff
233          * we have an ohare I/O controller.
234          */
235         if (find_devices("ohare") != NULL) {
236                 if (((sysctrl_regs[2] >> 24) & 0xf) >= 3) {
237                         if (sysctrl_regs[4] & 0x10)
238                                 sysctrl_regs[4] |= 0x04000020;
239                         else
240                                 sysctrl_regs[4] |= 0x04000000;
241                         if(has_l2cache)
242                                 printk(KERN_INFO "Level 2 cache enabled\n");
243                 }
244         }
245 }
246
247 static void __init l2cr_init(void)
248 {
249         /* Checks "l2cr-value" property in the registry */
250         if (cpu_has_feature(CPU_FTR_L2CR)) {
251                 struct device_node *np = find_devices("cpus");
252                 if (np == 0)
253                         np = find_type_devices("cpu");
254                 if (np != 0) {
255                         const unsigned int *l2cr =
256                                 get_property(np, "l2cr-value", NULL);
257                         if (l2cr != 0) {
258                                 ppc_override_l2cr = 1;
259                                 ppc_override_l2cr_value = *l2cr;
260                                 _set_L2CR(0);
261                                 _set_L2CR(ppc_override_l2cr_value);
262                         }
263                 }
264         }
265
266         if (ppc_override_l2cr)
267                 printk(KERN_INFO "L2CR overridden (0x%x), "
268                        "backside cache is %s\n",
269                        ppc_override_l2cr_value,
270                        (ppc_override_l2cr_value & 0x80000000)
271                                 ? "enabled" : "disabled");
272 }
273 #endif
274
275 static void __init pmac_setup_arch(void)
276 {
277         struct device_node *cpu, *ic;
278         const int *fp;
279         unsigned long pvr;
280
281         pvr = PVR_VER(mfspr(SPRN_PVR));
282
283         /* Set loops_per_jiffy to a half-way reasonable value,
284            for use until calibrate_delay gets called. */
285         loops_per_jiffy = 50000000 / HZ;
286         cpu = of_find_node_by_type(NULL, "cpu");
287         if (cpu != NULL) {
288                 fp = get_property(cpu, "clock-frequency", NULL);
289                 if (fp != NULL) {
290                         if (pvr >= 0x30 && pvr < 0x80)
291                                 /* PPC970 etc. */
292                                 loops_per_jiffy = *fp / (3 * HZ);
293                         else if (pvr == 4 || pvr >= 8)
294                                 /* 604, G3, G4 etc. */
295                                 loops_per_jiffy = *fp / HZ;
296                         else
297                                 /* 601, 603, etc. */
298                                 loops_per_jiffy = *fp / (2 * HZ);
299                 }
300                 of_node_put(cpu);
301         }
302
303         /* See if newworld or oldworld */
304         for (ic = NULL; (ic = of_find_all_nodes(ic)) != NULL; )
305                 if (get_property(ic, "interrupt-controller", NULL))
306                         break;
307         if (ic) {
308                 pmac_newworld = 1;
309                 of_node_put(ic);
310         }
311
312         /* Lookup PCI hosts */
313         pmac_pci_init();
314
315 #ifdef CONFIG_PPC32
316         ohare_init();
317         l2cr_init();
318 #endif /* CONFIG_PPC32 */
319
320 #ifdef CONFIG_KGDB
321         zs_kgdb_hook(0);
322 #endif
323
324         find_via_cuda();
325         find_via_pmu();
326         smu_init();
327
328 #if defined(CONFIG_NVRAM) || defined(CONFIG_PPC64)
329         pmac_nvram_init();
330 #endif
331
332 #ifdef CONFIG_PPC32
333 #ifdef CONFIG_BLK_DEV_INITRD
334         if (initrd_start)
335                 ROOT_DEV = Root_RAM0;
336         else
337 #endif
338                 ROOT_DEV = DEFAULT_ROOT_DEVICE;
339 #endif
340
341 #ifdef CONFIG_SMP
342         /* Check for Core99 */
343         if (find_devices("uni-n") || find_devices("u3") || find_devices("u4"))
344                 smp_ops = &core99_smp_ops;
345 #ifdef CONFIG_PPC32
346         else
347                 smp_ops = &psurge_smp_ops;
348 #endif
349 #endif /* CONFIG_SMP */
350
351 #ifdef CONFIG_ADB
352         if (strstr(cmd_line, "adb_sync")) {
353                 extern int __adb_probe_sync;
354                 __adb_probe_sync = 1;
355         }
356 #endif /* CONFIG_ADB */
357 }
358
359 char *bootpath;
360 char *bootdevice;
361 void *boot_host;
362 int boot_target;
363 int boot_part;
364 static dev_t boot_dev;
365
366 #ifdef CONFIG_SCSI
367 void __init note_scsi_host(struct device_node *node, void *host)
368 {
369         int l;
370         char *p;
371
372         l = strlen(node->full_name);
373         if (bootpath != NULL && bootdevice != NULL
374             && strncmp(node->full_name, bootdevice, l) == 0
375             && (bootdevice[l] == '/' || bootdevice[l] == 0)) {
376                 boot_host = host;
377                 /*
378                  * There's a bug in OF 1.0.5.  (Why am I not surprised.)
379                  * If you pass a path like scsi/sd@1:0 to canon, it returns
380                  * something like /bandit@F2000000/gc@10/53c94@10000/sd@0,0
381                  * That is, the scsi target number doesn't get preserved.
382                  * So we pick the target number out of bootpath and use that.
383                  */
384                 p = strstr(bootpath, "/sd@");
385                 if (p != NULL) {
386                         p += 4;
387                         boot_target = simple_strtoul(p, NULL, 10);
388                         p = strchr(p, ':');
389                         if (p != NULL)
390                                 boot_part = simple_strtoul(p + 1, NULL, 10);
391                 }
392         }
393 }
394 EXPORT_SYMBOL(note_scsi_host);
395 #endif
396
397 #if defined(CONFIG_BLK_DEV_IDE) && defined(CONFIG_BLK_DEV_IDE_PMAC)
398 static dev_t __init find_ide_boot(void)
399 {
400         char *p;
401         int n;
402         dev_t __init pmac_find_ide_boot(char *bootdevice, int n);
403
404         if (bootdevice == NULL)
405                 return 0;
406         p = strrchr(bootdevice, '/');
407         if (p == NULL)
408                 return 0;
409         n = p - bootdevice;
410
411         return pmac_find_ide_boot(bootdevice, n);
412 }
413 #endif /* CONFIG_BLK_DEV_IDE && CONFIG_BLK_DEV_IDE_PMAC */
414
415 static void __init find_boot_device(void)
416 {
417 #if defined(CONFIG_BLK_DEV_IDE) && defined(CONFIG_BLK_DEV_IDE_PMAC)
418         boot_dev = find_ide_boot();
419 #endif
420 }
421
422 /* TODO: Merge the suspend-to-ram with the common code !!!
423  * currently, this is a stub implementation for suspend-to-disk
424  * only
425  */
426
427 #ifdef CONFIG_SOFTWARE_SUSPEND
428
429 static int pmac_pm_prepare(suspend_state_t state)
430 {
431         printk(KERN_DEBUG "%s(%d)\n", __FUNCTION__, state);
432
433         return 0;
434 }
435
436 static int pmac_pm_enter(suspend_state_t state)
437 {
438         printk(KERN_DEBUG "%s(%d)\n", __FUNCTION__, state);
439
440         /* Giveup the lazy FPU & vec so we don't have to back them
441          * up from the low level code
442          */
443         enable_kernel_fp();
444
445 #ifdef CONFIG_ALTIVEC
446         if (cur_cpu_spec->cpu_features & CPU_FTR_ALTIVEC)
447                 enable_kernel_altivec();
448 #endif /* CONFIG_ALTIVEC */
449
450         return 0;
451 }
452
453 static int pmac_pm_finish(suspend_state_t state)
454 {
455         printk(KERN_DEBUG "%s(%d)\n", __FUNCTION__, state);
456
457         /* Restore userland MMU context */
458         set_context(current->active_mm->context.id, current->active_mm->pgd);
459
460         return 0;
461 }
462
463 static int pmac_pm_valid(suspend_state_t state)
464 {
465         switch (state) {
466         case PM_SUSPEND_DISK:
467                 return 1;
468         /* can't do any other states via generic mechanism yet */
469         default:
470                 return 0;
471         }
472 }
473
474 static struct pm_ops pmac_pm_ops = {
475         .pm_disk_mode   = PM_DISK_SHUTDOWN,
476         .prepare        = pmac_pm_prepare,
477         .enter          = pmac_pm_enter,
478         .finish         = pmac_pm_finish,
479         .valid          = pmac_pm_valid,
480 };
481
482 #endif /* CONFIG_SOFTWARE_SUSPEND */
483
484 static int initializing = 1;
485
486 static int pmac_late_init(void)
487 {
488         initializing = 0;
489 #ifdef CONFIG_SOFTWARE_SUSPEND
490         pm_set_ops(&pmac_pm_ops);
491 #endif /* CONFIG_SOFTWARE_SUSPEND */
492         return 0;
493 }
494
495 late_initcall(pmac_late_init);
496
497 /* can't be __init - can be called whenever a disk is first accessed */
498 void note_bootable_part(dev_t dev, int part, int goodness)
499 {
500         static int found_boot = 0;
501         char *p;
502
503         if (!initializing)
504                 return;
505         if ((goodness <= current_root_goodness) &&
506             ROOT_DEV != DEFAULT_ROOT_DEVICE)
507                 return;
508         p = strstr(saved_command_line, "root=");
509         if (p != NULL && (p == saved_command_line || p[-1] == ' '))
510                 return;
511
512         if (!found_boot) {
513                 find_boot_device();
514                 found_boot = 1;
515         }
516         if (!boot_dev || dev == boot_dev) {
517                 ROOT_DEV = dev + part;
518                 boot_dev = 0;
519                 current_root_goodness = goodness;
520         }
521 }
522
523 #ifdef CONFIG_ADB_CUDA
524 static void cuda_restart(void)
525 {
526         struct adb_request req;
527
528         cuda_request(&req, NULL, 2, CUDA_PACKET, CUDA_RESET_SYSTEM);
529         for (;;)
530                 cuda_poll();
531 }
532
533 static void cuda_shutdown(void)
534 {
535         struct adb_request req;
536
537         cuda_request(&req, NULL, 2, CUDA_PACKET, CUDA_POWERDOWN);
538         for (;;)
539                 cuda_poll();
540 }
541
542 #else
543 #define cuda_restart()
544 #define cuda_shutdown()
545 #endif
546
547 #ifndef CONFIG_ADB_PMU
548 #define pmu_restart()
549 #define pmu_shutdown()
550 #endif
551
552 #ifndef CONFIG_PMAC_SMU
553 #define smu_restart()
554 #define smu_shutdown()
555 #endif
556
557 static void pmac_restart(char *cmd)
558 {
559         switch (sys_ctrler) {
560         case SYS_CTRLER_CUDA:
561                 cuda_restart();
562                 break;
563         case SYS_CTRLER_PMU:
564                 pmu_restart();
565                 break;
566         case SYS_CTRLER_SMU:
567                 smu_restart();
568                 break;
569         default: ;
570         }
571 }
572
573 static void pmac_power_off(void)
574 {
575         switch (sys_ctrler) {
576         case SYS_CTRLER_CUDA:
577                 cuda_shutdown();
578                 break;
579         case SYS_CTRLER_PMU:
580                 pmu_shutdown();
581                 break;
582         case SYS_CTRLER_SMU:
583                 smu_shutdown();
584                 break;
585         default: ;
586         }
587 }
588
589 static void
590 pmac_halt(void)
591 {
592         pmac_power_off();
593 }
594
595 /* 
596  * Early initialization.
597  */
598 static void __init pmac_init_early(void)
599 {
600         /* Enable early btext debug if requested */
601         if (strstr(cmd_line, "btextdbg")) {
602                 udbg_adb_init_early();
603                 register_early_udbg_console();
604         }
605
606         /* Probe motherboard chipset */
607         pmac_feature_init();
608
609         /* Initialize debug stuff */
610         udbg_scc_init(!!strstr(cmd_line, "sccdbg"));
611         udbg_adb_init(!!strstr(cmd_line, "btextdbg"));
612
613 #ifdef CONFIG_PPC64
614         iommu_init_early_dart();
615 #endif
616 }
617
618 /*
619  * pmac has no legacy IO, anything calling this function has to
620  * fail or bad things will happen
621  */
622 static int pmac_check_legacy_ioport(unsigned int baseport)
623 {
624         return -ENODEV;
625 }
626
627 static int __init pmac_declare_of_platform_devices(void)
628 {
629         struct device_node *np;
630
631         if (machine_is(chrp))
632                 return -1;
633
634         if (!machine_is(powermac))
635                 return 0;
636
637         np = of_find_node_by_name(NULL, "valkyrie");
638         if (np)
639                 of_platform_device_create(np, "valkyrie", NULL);
640         np = of_find_node_by_name(NULL, "platinum");
641         if (np)
642                 of_platform_device_create(np, "platinum", NULL);
643         np = of_find_node_by_type(NULL, "smu");
644         if (np) {
645                 of_platform_device_create(np, "smu", NULL);
646                 of_node_put(np);
647         }
648
649         return 0;
650 }
651
652 device_initcall(pmac_declare_of_platform_devices);
653
654 /*
655  * Called very early, MMU is off, device-tree isn't unflattened
656  */
657 static int __init pmac_probe(void)
658 {
659         unsigned long root = of_get_flat_dt_root();
660
661         if (!of_flat_dt_is_compatible(root, "Power Macintosh") &&
662             !of_flat_dt_is_compatible(root, "MacRISC"))
663                 return 0;
664
665 #ifdef CONFIG_PPC64
666         /*
667          * On U3, the DART (iommu) must be allocated now since it
668          * has an impact on htab_initialize (due to the large page it
669          * occupies having to be broken up so the DART itself is not
670          * part of the cacheable linar mapping
671          */
672         alloc_dart_table();
673
674         hpte_init_native();
675 #endif
676
677 #ifdef CONFIG_PPC32
678         /* isa_io_base gets set in pmac_pci_init */
679         isa_mem_base = PMAC_ISA_MEM_BASE;
680         pci_dram_offset = PMAC_PCI_DRAM_OFFSET;
681         ISA_DMA_THRESHOLD = ~0L;
682         DMA_MODE_READ = 1;
683         DMA_MODE_WRITE = 2;
684
685 #if defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_IDE_MODULE)
686 #ifdef CONFIG_BLK_DEV_IDE_PMAC
687         ppc_ide_md.ide_init_hwif        = pmac_ide_init_hwif_ports;
688         ppc_ide_md.default_io_base      = pmac_ide_get_base;
689 #endif /* CONFIG_BLK_DEV_IDE_PMAC */
690 #endif /* defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_IDE_MODULE) */
691
692 #endif /* CONFIG_PPC32 */
693
694 #ifdef CONFIG_PMAC_SMU
695         /*
696          * SMU based G5s need some memory below 2Gb, at least the current
697          * driver needs that. We have to allocate it now. We allocate 4k
698          * (1 small page) for now.
699          */
700         smu_cmdbuf_abs = lmb_alloc_base(4096, 4096, 0x80000000UL);
701 #endif /* CONFIG_PMAC_SMU */
702
703         return 1;
704 }
705
706 #ifdef CONFIG_PPC64
707 /* Move that to pci.c */
708 static int pmac_pci_probe_mode(struct pci_bus *bus)
709 {
710         struct device_node *node = bus->sysdata;
711
712         /* We need to use normal PCI probing for the AGP bus,
713          * since the device for the AGP bridge isn't in the tree.
714          */
715         if (bus->self == NULL && (device_is_compatible(node, "u3-agp") ||
716                                   device_is_compatible(node, "u4-pcie")))
717                 return PCI_PROBE_NORMAL;
718         return PCI_PROBE_DEVTREE;
719 }
720 #endif
721
722 define_machine(powermac) {
723         .name                   = "PowerMac",
724         .probe                  = pmac_probe,
725         .setup_arch             = pmac_setup_arch,
726         .init_early             = pmac_init_early,
727         .show_cpuinfo           = pmac_show_cpuinfo,
728         .init_IRQ               = pmac_pic_init,
729         .get_irq                = NULL, /* changed later */
730         .pci_irq_fixup          = pmac_pci_irq_fixup,
731         .restart                = pmac_restart,
732         .power_off              = pmac_power_off,
733         .halt                   = pmac_halt,
734         .time_init              = pmac_time_init,
735         .get_boot_time          = pmac_get_boot_time,
736         .set_rtc_time           = pmac_set_rtc_time,
737         .get_rtc_time           = pmac_get_rtc_time,
738         .calibrate_decr         = pmac_calibrate_decr,
739         .feature_call           = pmac_do_feature_call,
740         .check_legacy_ioport    = pmac_check_legacy_ioport,
741         .progress               = udbg_progress,
742 #ifdef CONFIG_PPC64
743         .pci_probe_mode         = pmac_pci_probe_mode,
744         .power_save             = power4_idle,
745         .enable_pmcs            = power4_enable_pmcs,
746 #ifdef CONFIG_KEXEC
747         .machine_kexec          = default_machine_kexec,
748         .machine_kexec_prepare  = default_machine_kexec_prepare,
749         .machine_crash_shutdown = default_machine_crash_shutdown,
750 #endif
751 #endif /* CONFIG_PPC64 */
752 #ifdef CONFIG_PPC32
753         .pcibios_enable_device_hook = pmac_pci_enable_device_hook,
754         .pcibios_after_init     = pmac_pcibios_after_init,
755         .phys_mem_access_prot   = pci_phys_mem_access_prot,
756 #endif
757 #if defined(CONFIG_HOTPLUG_CPU) && defined(CONFIG_PPC64)
758         .cpu_die                = generic_mach_cpu_die,
759 #endif
760 };