Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6
[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 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 static int initializing = 1;
443
444 static int pmac_late_init(void)
445 {
446         initializing = 0;
447         /* this is udbg (which is __init) and we can later use it during
448          * cpu hotplug (in smp_core99_kick_cpu) */
449         ppc_md.progress = NULL;
450         return 0;
451 }
452
453 late_initcall(pmac_late_init);
454
455 /* can't be __init - can be called whenever a disk is first accessed */
456 void note_bootable_part(dev_t dev, int part, int goodness)
457 {
458         static int found_boot = 0;
459         char *p;
460
461         if (!initializing)
462                 return;
463         if ((goodness <= current_root_goodness) &&
464             ROOT_DEV != DEFAULT_ROOT_DEVICE)
465                 return;
466         p = strstr(boot_command_line, "root=");
467         if (p != NULL && (p == boot_command_line || p[-1] == ' '))
468                 return;
469
470         if (!found_boot) {
471                 find_boot_device();
472                 found_boot = 1;
473         }
474         if (!boot_dev || dev == boot_dev) {
475                 ROOT_DEV = dev + part;
476                 boot_dev = 0;
477                 current_root_goodness = goodness;
478         }
479 }
480
481 #ifdef CONFIG_ADB_CUDA
482 static void cuda_restart(void)
483 {
484         struct adb_request req;
485
486         cuda_request(&req, NULL, 2, CUDA_PACKET, CUDA_RESET_SYSTEM);
487         for (;;)
488                 cuda_poll();
489 }
490
491 static void cuda_shutdown(void)
492 {
493         struct adb_request req;
494
495         cuda_request(&req, NULL, 2, CUDA_PACKET, CUDA_POWERDOWN);
496         for (;;)
497                 cuda_poll();
498 }
499
500 #else
501 #define cuda_restart()
502 #define cuda_shutdown()
503 #endif
504
505 #ifndef CONFIG_ADB_PMU
506 #define pmu_restart()
507 #define pmu_shutdown()
508 #endif
509
510 #ifndef CONFIG_PMAC_SMU
511 #define smu_restart()
512 #define smu_shutdown()
513 #endif
514
515 static void pmac_restart(char *cmd)
516 {
517         switch (sys_ctrler) {
518         case SYS_CTRLER_CUDA:
519                 cuda_restart();
520                 break;
521         case SYS_CTRLER_PMU:
522                 pmu_restart();
523                 break;
524         case SYS_CTRLER_SMU:
525                 smu_restart();
526                 break;
527         default: ;
528         }
529 }
530
531 static void pmac_power_off(void)
532 {
533         switch (sys_ctrler) {
534         case SYS_CTRLER_CUDA:
535                 cuda_shutdown();
536                 break;
537         case SYS_CTRLER_PMU:
538                 pmu_shutdown();
539                 break;
540         case SYS_CTRLER_SMU:
541                 smu_shutdown();
542                 break;
543         default: ;
544         }
545 }
546
547 static void
548 pmac_halt(void)
549 {
550         pmac_power_off();
551 }
552
553 /* 
554  * Early initialization.
555  */
556 static void __init pmac_init_early(void)
557 {
558         /* Enable early btext debug if requested */
559         if (strstr(cmd_line, "btextdbg")) {
560                 udbg_adb_init_early();
561                 register_early_udbg_console();
562         }
563
564         /* Probe motherboard chipset */
565         pmac_feature_init();
566
567         /* Initialize debug stuff */
568         udbg_scc_init(!!strstr(cmd_line, "sccdbg"));
569         udbg_adb_init(!!strstr(cmd_line, "btextdbg"));
570
571 #ifdef CONFIG_PPC64
572         iommu_init_early_dart();
573 #endif
574 }
575
576 static int __init pmac_declare_of_platform_devices(void)
577 {
578         struct device_node *np;
579
580         if (machine_is(chrp))
581                 return -1;
582
583         if (!machine_is(powermac))
584                 return 0;
585
586         np = of_find_node_by_name(NULL, "valkyrie");
587         if (np)
588                 of_platform_device_create(np, "valkyrie", NULL);
589         np = of_find_node_by_name(NULL, "platinum");
590         if (np)
591                 of_platform_device_create(np, "platinum", NULL);
592         np = of_find_node_by_type(NULL, "smu");
593         if (np) {
594                 of_platform_device_create(np, "smu", NULL);
595                 of_node_put(np);
596         }
597
598         return 0;
599 }
600
601 device_initcall(pmac_declare_of_platform_devices);
602
603 /*
604  * Called very early, MMU is off, device-tree isn't unflattened
605  */
606 static int __init pmac_probe(void)
607 {
608         unsigned long root = of_get_flat_dt_root();
609
610         if (!of_flat_dt_is_compatible(root, "Power Macintosh") &&
611             !of_flat_dt_is_compatible(root, "MacRISC"))
612                 return 0;
613
614 #ifdef CONFIG_PPC64
615         /*
616          * On U3, the DART (iommu) must be allocated now since it
617          * has an impact on htab_initialize (due to the large page it
618          * occupies having to be broken up so the DART itself is not
619          * part of the cacheable linar mapping
620          */
621         alloc_dart_table();
622
623         hpte_init_native();
624 #endif
625
626 #ifdef CONFIG_PPC32
627         /* isa_io_base gets set in pmac_pci_init */
628         ISA_DMA_THRESHOLD = ~0L;
629         DMA_MODE_READ = 1;
630         DMA_MODE_WRITE = 2;
631
632 #if defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_IDE_MODULE)
633 #ifdef CONFIG_BLK_DEV_IDE_PMAC
634         ppc_ide_md.ide_init_hwif        = pmac_ide_init_hwif_ports;
635         ppc_ide_md.default_io_base      = pmac_ide_get_base;
636 #endif /* CONFIG_BLK_DEV_IDE_PMAC */
637 #endif /* defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_IDE_MODULE) */
638
639 #endif /* CONFIG_PPC32 */
640
641 #ifdef CONFIG_PMAC_SMU
642         /*
643          * SMU based G5s need some memory below 2Gb, at least the current
644          * driver needs that. We have to allocate it now. We allocate 4k
645          * (1 small page) for now.
646          */
647         smu_cmdbuf_abs = lmb_alloc_base(4096, 4096, 0x80000000UL);
648 #endif /* CONFIG_PMAC_SMU */
649
650         return 1;
651 }
652
653 #ifdef CONFIG_PPC64
654 /* Move that to pci.c */
655 static int pmac_pci_probe_mode(struct pci_bus *bus)
656 {
657         struct device_node *node = bus->sysdata;
658
659         /* We need to use normal PCI probing for the AGP bus,
660          * since the device for the AGP bridge isn't in the tree.
661          */
662         if (bus->self == NULL && (of_device_is_compatible(node, "u3-agp") ||
663                                   of_device_is_compatible(node, "u4-pcie")))
664                 return PCI_PROBE_NORMAL;
665         return PCI_PROBE_DEVTREE;
666 }
667
668 #ifdef CONFIG_HOTPLUG_CPU
669 /* access per cpu vars from generic smp.c */
670 DECLARE_PER_CPU(int, cpu_state);
671
672 static void pmac_cpu_die(void)
673 {
674         /*
675          * turn off as much as possible, we'll be
676          * kicked out as this will only be invoked
677          * on core99 platforms for now ...
678          */
679
680         printk(KERN_INFO "CPU#%d offline\n", smp_processor_id());
681         __get_cpu_var(cpu_state) = CPU_DEAD;
682         smp_wmb();
683
684         /*
685          * during the path that leads here preemption is disabled,
686          * reenable it now so that when coming up preempt count is
687          * zero correctly
688          */
689         preempt_enable();
690
691         /*
692          * hard-disable interrupts for the non-NAP case, the NAP code
693          * needs to re-enable interrupts (but soft-disables them)
694          */
695         hard_irq_disable();
696
697         while (1) {
698                 /* let's not take timer interrupts too often ... */
699                 set_dec(0x7fffffff);
700
701                 /* should always be true at this point */
702                 if (cpu_has_feature(CPU_FTR_CAN_NAP))
703                         power4_cpu_offline_powersave();
704                 else {
705                         HMT_low();
706                         HMT_very_low();
707                 }
708         }
709 }
710 #endif /* CONFIG_HOTPLUG_CPU */
711
712 #endif /* CONFIG_PPC64 */
713
714 define_machine(powermac) {
715         .name                   = "PowerMac",
716         .probe                  = pmac_probe,
717         .setup_arch             = pmac_setup_arch,
718         .init_early             = pmac_init_early,
719         .show_cpuinfo           = pmac_show_cpuinfo,
720         .init_IRQ               = pmac_pic_init,
721         .get_irq                = NULL, /* changed later */
722         .pci_irq_fixup          = pmac_pci_irq_fixup,
723         .restart                = pmac_restart,
724         .power_off              = pmac_power_off,
725         .halt                   = pmac_halt,
726         .time_init              = pmac_time_init,
727         .get_boot_time          = pmac_get_boot_time,
728         .set_rtc_time           = pmac_set_rtc_time,
729         .get_rtc_time           = pmac_get_rtc_time,
730         .calibrate_decr         = pmac_calibrate_decr,
731         .feature_call           = pmac_do_feature_call,
732         .progress               = udbg_progress,
733 #ifdef CONFIG_PPC64
734         .pci_probe_mode         = pmac_pci_probe_mode,
735         .power_save             = power4_idle,
736         .enable_pmcs            = power4_enable_pmcs,
737 #ifdef CONFIG_KEXEC
738         .machine_kexec          = default_machine_kexec,
739         .machine_kexec_prepare  = default_machine_kexec_prepare,
740         .machine_crash_shutdown = default_machine_crash_shutdown,
741 #endif
742 #endif /* CONFIG_PPC64 */
743 #ifdef CONFIG_PPC32
744         .pcibios_enable_device_hook = pmac_pci_enable_device_hook,
745         .pcibios_after_init     = pmac_pcibios_after_init,
746         .phys_mem_access_prot   = pci_phys_mem_access_prot,
747 #endif
748 #if defined(CONFIG_HOTPLUG_CPU) && defined(CONFIG_PPC64)
749         .cpu_die                = pmac_cpu_die,
750 #endif
751 };