Pull percpu-dtc into release branch
[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/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
55 #include <asm/reg.h>
56 #include <asm/sections.h>
57 #include <asm/prom.h>
58 #include <asm/system.h>
59 #include <asm/pgtable.h>
60 #include <asm/io.h>
61 #include <asm/kexec.h>
62 #include <asm/pci-bridge.h>
63 #include <asm/ohare.h>
64 #include <asm/mediabay.h>
65 #include <asm/machdep.h>
66 #include <asm/dma.h>
67 #include <asm/cputable.h>
68 #include <asm/btext.h>
69 #include <asm/pmac_feature.h>
70 #include <asm/time.h>
71 #include <asm/of_device.h>
72 #include <asm/of_platform.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 = of_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 = of_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 =
167                         of_get_property(np, "i-cache-size", NULL);
168                 const unsigned int *dc =
169                         of_get_property(np, "d-cache-size", NULL);
170                 seq_printf(m, "L2 cache\t:");
171                 has_l2cache = 1;
172                 if (of_get_property(np, "cache-unified", NULL) != 0 && dc) {
173                         seq_printf(m, " %dK unified", *dc / 1024);
174                 } else {
175                         if (ic)
176                                 seq_printf(m, " %dK instruction", *ic / 1024);
177                         if (dc)
178                                 seq_printf(m, "%s %dK data",
179                                            (ic? " +": ""), *dc / 1024);
180                 }
181                 pp = of_get_property(np, "ram-type", NULL);
182                 if (pp)
183                         seq_printf(m, " %s", pp);
184                 seq_printf(m, "\n");
185                 of_node_put(np);
186         }
187
188         /* Indicate newworld/oldworld */
189         seq_printf(m, "pmac-generation\t: %s\n",
190                    pmac_newworld ? "NewWorld" : "OldWorld");
191 }
192
193 #ifndef CONFIG_ADB_CUDA
194 int find_via_cuda(void)
195 {
196         struct device_node *dn = of_find_node_by_name(NULL, "via-cuda");
197
198         if (!dn)
199                 return 0;
200         of_node_put(dn);
201         printk("WARNING ! Your machine is CUDA-based but your kernel\n");
202         printk("          wasn't compiled with CONFIG_ADB_CUDA option !\n");
203         return 0;
204 }
205 #endif
206
207 #ifndef CONFIG_ADB_PMU
208 int find_via_pmu(void)
209 {
210         struct device_node *dn = of_find_node_by_name(NULL, "via-pmu");
211
212         if (!dn)
213                 return 0;
214         of_node_put(dn);
215         printk("WARNING ! Your machine is PMU-based but your kernel\n");
216         printk("          wasn't compiled with CONFIG_ADB_PMU option !\n");
217         return 0;
218 }
219 #endif
220
221 #ifndef CONFIG_PMAC_SMU
222 int smu_init(void)
223 {
224         /* should check and warn if SMU is present */
225         return 0;
226 }
227 #endif
228
229 #ifdef CONFIG_PPC32
230 static volatile u32 *sysctrl_regs;
231
232 static void __init ohare_init(void)
233 {
234         struct device_node *dn;
235
236         /* this area has the CPU identification register
237            and some registers used by smp boards */
238         sysctrl_regs = (volatile u32 *) ioremap(0xf8000000, 0x1000);
239
240         /*
241          * Turn on the L2 cache.
242          * We assume that we have a PSX memory controller iff
243          * we have an ohare I/O controller.
244          */
245         dn = of_find_node_by_name(NULL, "ohare");
246         if (dn) {
247                 of_node_put(dn);
248                 if (((sysctrl_regs[2] >> 24) & 0xf) >= 3) {
249                         if (sysctrl_regs[4] & 0x10)
250                                 sysctrl_regs[4] |= 0x04000020;
251                         else
252                                 sysctrl_regs[4] |= 0x04000000;
253                         if(has_l2cache)
254                                 printk(KERN_INFO "Level 2 cache enabled\n");
255                 }
256         }
257 }
258
259 static void __init l2cr_init(void)
260 {
261         /* Checks "l2cr-value" property in the registry */
262         if (cpu_has_feature(CPU_FTR_L2CR)) {
263                 struct device_node *np = of_find_node_by_name(NULL, "cpus");
264                 if (np == 0)
265                         np = of_find_node_by_type(NULL, "cpu");
266                 if (np != 0) {
267                         const unsigned int *l2cr =
268                                 of_get_property(np, "l2cr-value", NULL);
269                         if (l2cr != 0) {
270                                 ppc_override_l2cr = 1;
271                                 ppc_override_l2cr_value = *l2cr;
272                                 _set_L2CR(0);
273                                 _set_L2CR(ppc_override_l2cr_value);
274                         }
275                         of_node_put(np);
276                 }
277         }
278
279         if (ppc_override_l2cr)
280                 printk(KERN_INFO "L2CR overridden (0x%x), "
281                        "backside cache is %s\n",
282                        ppc_override_l2cr_value,
283                        (ppc_override_l2cr_value & 0x80000000)
284                                 ? "enabled" : "disabled");
285 }
286 #endif
287
288 static void __init pmac_setup_arch(void)
289 {
290         struct device_node *cpu, *ic;
291         const int *fp;
292         unsigned long pvr;
293
294         pvr = PVR_VER(mfspr(SPRN_PVR));
295
296         /* Set loops_per_jiffy to a half-way reasonable value,
297            for use until calibrate_delay gets called. */
298         loops_per_jiffy = 50000000 / HZ;
299         cpu = of_find_node_by_type(NULL, "cpu");
300         if (cpu != NULL) {
301                 fp = of_get_property(cpu, "clock-frequency", NULL);
302                 if (fp != NULL) {
303                         if (pvr >= 0x30 && pvr < 0x80)
304                                 /* PPC970 etc. */
305                                 loops_per_jiffy = *fp / (3 * HZ);
306                         else if (pvr == 4 || pvr >= 8)
307                                 /* 604, G3, G4 etc. */
308                                 loops_per_jiffy = *fp / HZ;
309                         else
310                                 /* 601, 603, etc. */
311                                 loops_per_jiffy = *fp / (2 * HZ);
312                 }
313                 of_node_put(cpu);
314         }
315
316         /* See if newworld or oldworld */
317         for (ic = NULL; (ic = of_find_all_nodes(ic)) != NULL; )
318                 if (of_get_property(ic, "interrupt-controller", NULL))
319                         break;
320         if (ic) {
321                 pmac_newworld = 1;
322                 of_node_put(ic);
323         }
324
325         /* Lookup PCI hosts */
326         pmac_pci_init();
327
328 #ifdef CONFIG_PPC32
329         ohare_init();
330         l2cr_init();
331 #endif /* CONFIG_PPC32 */
332
333 #ifdef CONFIG_KGDB
334         zs_kgdb_hook(0);
335 #endif
336
337         find_via_cuda();
338         find_via_pmu();
339         smu_init();
340
341 #if defined(CONFIG_NVRAM) || 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                 smp_ops = &psurge_smp_ops;
368 #endif
369 #endif /* CONFIG_SMP */
370
371 #ifdef CONFIG_ADB
372         if (strstr(cmd_line, "adb_sync")) {
373                 extern int __adb_probe_sync;
374                 __adb_probe_sync = 1;
375         }
376 #endif /* CONFIG_ADB */
377 }
378
379 char *bootpath;
380 char *bootdevice;
381 void *boot_host;
382 int boot_target;
383 int boot_part;
384 static dev_t boot_dev;
385
386 #ifdef CONFIG_SCSI
387 void __init note_scsi_host(struct device_node *node, void *host)
388 {
389         int l;
390         char *p;
391
392         l = strlen(node->full_name);
393         if (bootpath != NULL && bootdevice != NULL
394             && strncmp(node->full_name, bootdevice, l) == 0
395             && (bootdevice[l] == '/' || bootdevice[l] == 0)) {
396                 boot_host = host;
397                 /*
398                  * There's a bug in OF 1.0.5.  (Why am I not surprised.)
399                  * If you pass a path like scsi/sd@1:0 to canon, it returns
400                  * something like /bandit@F2000000/gc@10/53c94@10000/sd@0,0
401                  * That is, the scsi target number doesn't get preserved.
402                  * So we pick the target number out of bootpath and use that.
403                  */
404                 p = strstr(bootpath, "/sd@");
405                 if (p != NULL) {
406                         p += 4;
407                         boot_target = simple_strtoul(p, NULL, 10);
408                         p = strchr(p, ':');
409                         if (p != NULL)
410                                 boot_part = simple_strtoul(p + 1, NULL, 10);
411                 }
412         }
413 }
414 EXPORT_SYMBOL(note_scsi_host);
415 #endif
416
417 #if defined(CONFIG_BLK_DEV_IDE) && defined(CONFIG_BLK_DEV_IDE_PMAC)
418 static dev_t __init find_ide_boot(void)
419 {
420         char *p;
421         int n;
422         dev_t __init pmac_find_ide_boot(char *bootdevice, int n);
423
424         if (bootdevice == NULL)
425                 return 0;
426         p = strrchr(bootdevice, '/');
427         if (p == NULL)
428                 return 0;
429         n = p - bootdevice;
430
431         return pmac_find_ide_boot(bootdevice, n);
432 }
433 #endif /* CONFIG_BLK_DEV_IDE && CONFIG_BLK_DEV_IDE_PMAC */
434
435 static void __init find_boot_device(void)
436 {
437 #if defined(CONFIG_BLK_DEV_IDE) && defined(CONFIG_BLK_DEV_IDE_PMAC)
438         boot_dev = find_ide_boot();
439 #endif
440 }
441
442 /* TODO: Merge the suspend-to-ram with the common code !!!
443  * currently, this is a stub implementation for suspend-to-disk
444  * only
445  */
446
447 #ifdef CONFIG_SOFTWARE_SUSPEND
448
449 static int pmac_pm_prepare(suspend_state_t state)
450 {
451         printk(KERN_DEBUG "%s(%d)\n", __FUNCTION__, state);
452
453         return 0;
454 }
455
456 static int pmac_pm_enter(suspend_state_t state)
457 {
458         printk(KERN_DEBUG "%s(%d)\n", __FUNCTION__, state);
459
460         /* Giveup the lazy FPU & vec so we don't have to back them
461          * up from the low level code
462          */
463         enable_kernel_fp();
464
465 #ifdef CONFIG_ALTIVEC
466         if (cur_cpu_spec->cpu_features & CPU_FTR_ALTIVEC)
467                 enable_kernel_altivec();
468 #endif /* CONFIG_ALTIVEC */
469
470         return 0;
471 }
472
473 static int pmac_pm_finish(suspend_state_t state)
474 {
475         printk(KERN_DEBUG "%s(%d)\n", __FUNCTION__, state);
476
477         /* Restore userland MMU context */
478         set_context(current->active_mm->context.id, current->active_mm->pgd);
479
480         return 0;
481 }
482
483 static int pmac_pm_valid(suspend_state_t state)
484 {
485         switch (state) {
486         case PM_SUSPEND_DISK:
487                 return 1;
488         /* can't do any other states via generic mechanism yet */
489         default:
490                 return 0;
491         }
492 }
493
494 static struct pm_ops pmac_pm_ops = {
495         .pm_disk_mode   = PM_DISK_SHUTDOWN,
496         .prepare        = pmac_pm_prepare,
497         .enter          = pmac_pm_enter,
498         .finish         = pmac_pm_finish,
499         .valid          = pmac_pm_valid,
500 };
501
502 #endif /* CONFIG_SOFTWARE_SUSPEND */
503
504 static int initializing = 1;
505
506 static int pmac_late_init(void)
507 {
508         initializing = 0;
509 #ifdef CONFIG_SOFTWARE_SUSPEND
510         pm_set_ops(&pmac_pm_ops);
511 #endif /* CONFIG_SOFTWARE_SUSPEND */
512         return 0;
513 }
514
515 late_initcall(pmac_late_init);
516
517 /* can't be __init - can be called whenever a disk is first accessed */
518 void note_bootable_part(dev_t dev, int part, int goodness)
519 {
520         static int found_boot = 0;
521         char *p;
522
523         if (!initializing)
524                 return;
525         if ((goodness <= current_root_goodness) &&
526             ROOT_DEV != DEFAULT_ROOT_DEVICE)
527                 return;
528         p = strstr(boot_command_line, "root=");
529         if (p != NULL && (p == boot_command_line || p[-1] == ' '))
530                 return;
531
532         if (!found_boot) {
533                 find_boot_device();
534                 found_boot = 1;
535         }
536         if (!boot_dev || dev == boot_dev) {
537                 ROOT_DEV = dev + part;
538                 boot_dev = 0;
539                 current_root_goodness = goodness;
540         }
541 }
542
543 #ifdef CONFIG_ADB_CUDA
544 static void cuda_restart(void)
545 {
546         struct adb_request req;
547
548         cuda_request(&req, NULL, 2, CUDA_PACKET, CUDA_RESET_SYSTEM);
549         for (;;)
550                 cuda_poll();
551 }
552
553 static void cuda_shutdown(void)
554 {
555         struct adb_request req;
556
557         cuda_request(&req, NULL, 2, CUDA_PACKET, CUDA_POWERDOWN);
558         for (;;)
559                 cuda_poll();
560 }
561
562 #else
563 #define cuda_restart()
564 #define cuda_shutdown()
565 #endif
566
567 #ifndef CONFIG_ADB_PMU
568 #define pmu_restart()
569 #define pmu_shutdown()
570 #endif
571
572 #ifndef CONFIG_PMAC_SMU
573 #define smu_restart()
574 #define smu_shutdown()
575 #endif
576
577 static void pmac_restart(char *cmd)
578 {
579         switch (sys_ctrler) {
580         case SYS_CTRLER_CUDA:
581                 cuda_restart();
582                 break;
583         case SYS_CTRLER_PMU:
584                 pmu_restart();
585                 break;
586         case SYS_CTRLER_SMU:
587                 smu_restart();
588                 break;
589         default: ;
590         }
591 }
592
593 static void pmac_power_off(void)
594 {
595         switch (sys_ctrler) {
596         case SYS_CTRLER_CUDA:
597                 cuda_shutdown();
598                 break;
599         case SYS_CTRLER_PMU:
600                 pmu_shutdown();
601                 break;
602         case SYS_CTRLER_SMU:
603                 smu_shutdown();
604                 break;
605         default: ;
606         }
607 }
608
609 static void
610 pmac_halt(void)
611 {
612         pmac_power_off();
613 }
614
615 /* 
616  * Early initialization.
617  */
618 static void __init pmac_init_early(void)
619 {
620         /* Enable early btext debug if requested */
621         if (strstr(cmd_line, "btextdbg")) {
622                 udbg_adb_init_early();
623                 register_early_udbg_console();
624         }
625
626         /* Probe motherboard chipset */
627         pmac_feature_init();
628
629         /* Initialize debug stuff */
630         udbg_scc_init(!!strstr(cmd_line, "sccdbg"));
631         udbg_adb_init(!!strstr(cmd_line, "btextdbg"));
632
633 #ifdef CONFIG_PPC64
634         iommu_init_early_dart();
635 #endif
636 }
637
638 static int __init pmac_declare_of_platform_devices(void)
639 {
640         struct device_node *np;
641
642         if (machine_is(chrp))
643                 return -1;
644
645         if (!machine_is(powermac))
646                 return 0;
647
648         np = of_find_node_by_name(NULL, "valkyrie");
649         if (np)
650                 of_platform_device_create(np, "valkyrie", NULL);
651         np = of_find_node_by_name(NULL, "platinum");
652         if (np)
653                 of_platform_device_create(np, "platinum", NULL);
654         np = of_find_node_by_type(NULL, "smu");
655         if (np) {
656                 of_platform_device_create(np, "smu", NULL);
657                 of_node_put(np);
658         }
659
660         return 0;
661 }
662
663 device_initcall(pmac_declare_of_platform_devices);
664
665 /*
666  * Called very early, MMU is off, device-tree isn't unflattened
667  */
668 static int __init pmac_probe(void)
669 {
670         unsigned long root = of_get_flat_dt_root();
671
672         if (!of_flat_dt_is_compatible(root, "Power Macintosh") &&
673             !of_flat_dt_is_compatible(root, "MacRISC"))
674                 return 0;
675
676 #ifdef CONFIG_PPC64
677         /*
678          * On U3, the DART (iommu) must be allocated now since it
679          * has an impact on htab_initialize (due to the large page it
680          * occupies having to be broken up so the DART itself is not
681          * part of the cacheable linar mapping
682          */
683         alloc_dart_table();
684
685         hpte_init_native();
686 #endif
687
688 #ifdef CONFIG_PPC32
689         /* isa_io_base gets set in pmac_pci_init */
690         ISA_DMA_THRESHOLD = ~0L;
691         DMA_MODE_READ = 1;
692         DMA_MODE_WRITE = 2;
693
694 #if defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_IDE_MODULE)
695 #ifdef CONFIG_BLK_DEV_IDE_PMAC
696         ppc_ide_md.ide_init_hwif        = pmac_ide_init_hwif_ports;
697         ppc_ide_md.default_io_base      = pmac_ide_get_base;
698 #endif /* CONFIG_BLK_DEV_IDE_PMAC */
699 #endif /* defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_IDE_MODULE) */
700
701 #endif /* CONFIG_PPC32 */
702
703 #ifdef CONFIG_PMAC_SMU
704         /*
705          * SMU based G5s need some memory below 2Gb, at least the current
706          * driver needs that. We have to allocate it now. We allocate 4k
707          * (1 small page) for now.
708          */
709         smu_cmdbuf_abs = lmb_alloc_base(4096, 4096, 0x80000000UL);
710 #endif /* CONFIG_PMAC_SMU */
711
712         return 1;
713 }
714
715 #ifdef CONFIG_PPC64
716 /* Move that to pci.c */
717 static int pmac_pci_probe_mode(struct pci_bus *bus)
718 {
719         struct device_node *node = bus->sysdata;
720
721         /* We need to use normal PCI probing for the AGP bus,
722          * since the device for the AGP bridge isn't in the tree.
723          */
724         if (bus->self == NULL && (device_is_compatible(node, "u3-agp") ||
725                                   device_is_compatible(node, "u4-pcie")))
726                 return PCI_PROBE_NORMAL;
727         return PCI_PROBE_DEVTREE;
728 }
729 #endif
730
731 define_machine(powermac) {
732         .name                   = "PowerMac",
733         .probe                  = pmac_probe,
734         .setup_arch             = pmac_setup_arch,
735         .init_early             = pmac_init_early,
736         .show_cpuinfo           = pmac_show_cpuinfo,
737         .init_IRQ               = pmac_pic_init,
738         .get_irq                = NULL, /* changed later */
739         .pci_irq_fixup          = pmac_pci_irq_fixup,
740         .restart                = pmac_restart,
741         .power_off              = pmac_power_off,
742         .halt                   = pmac_halt,
743         .time_init              = pmac_time_init,
744         .get_boot_time          = pmac_get_boot_time,
745         .set_rtc_time           = pmac_set_rtc_time,
746         .get_rtc_time           = pmac_get_rtc_time,
747         .calibrate_decr         = pmac_calibrate_decr,
748         .feature_call           = pmac_do_feature_call,
749         .progress               = udbg_progress,
750 #ifdef CONFIG_PPC64
751         .pci_probe_mode         = pmac_pci_probe_mode,
752         .power_save             = power4_idle,
753         .enable_pmcs            = power4_enable_pmcs,
754 #ifdef CONFIG_KEXEC
755         .machine_kexec          = default_machine_kexec,
756         .machine_kexec_prepare  = default_machine_kexec_prepare,
757         .machine_crash_shutdown = default_machine_crash_shutdown,
758 #endif
759 #endif /* CONFIG_PPC64 */
760 #ifdef CONFIG_PPC32
761         .pcibios_enable_device_hook = pmac_pci_enable_device_hook,
762         .pcibios_after_init     = pmac_pcibios_after_init,
763         .phys_mem_access_prot   = pci_phys_mem_access_prot,
764 #endif
765 #if defined(CONFIG_HOTPLUG_CPU) && defined(CONFIG_PPC64)
766         .cpu_die                = generic_mach_cpu_die,
767 #endif
768 };