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/tty.h>
37 #include <linux/string.h>
38 #include <linux/delay.h>
39 #include <linux/ioport.h>
40 #include <linux/major.h>
41 #include <linux/initrd.h>
42 #include <linux/vt_kern.h>
43 #include <linux/console.h>
44 #include <linux/pci.h>
45 #include <linux/adb.h>
46 #include <linux/cuda.h>
47 #include <linux/pmu.h>
48 #include <linux/irq.h>
49 #include <linux/seq_file.h>
50 #include <linux/root_dev.h>
51 #include <linux/bitops.h>
52 #include <linux/suspend.h>
53 #include <linux/of_device.h>
54 #include <linux/of_platform.h>
55 #include <linux/lmb.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/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/mmu_context.h>
73 #include <asm/iommu.h>
74 #include <asm/smu.h>
75 #include <asm/pmc.h>
76 #include <asm/udbg.h>
77
78 #include "pmac.h"
79
80 #undef SHOW_GATWICK_IRQS
81
82 int ppc_override_l2cr = 0;
83 int ppc_override_l2cr_value;
84 int has_l2cache = 0;
85
86 int pmac_newworld;
87
88 static int current_root_goodness = -1;
89
90 extern struct machdep_calls pmac_md;
91
92 #define DEFAULT_ROOT_DEVICE Root_SDA1 /* sda1 - slightly silly choice */
93
94 #ifdef CONFIG_PPC64
95 int sccdbg;
96 #endif
97
98 sys_ctrler_t sys_ctrler = SYS_CTRLER_UNKNOWN;
99 EXPORT_SYMBOL(sys_ctrler);
100
101 #ifdef CONFIG_PMAC_SMU
102 unsigned long smu_cmdbuf_abs;
103 EXPORT_SYMBOL(smu_cmdbuf_abs);
104 #endif
105
106 #ifdef CONFIG_SMP
107 extern struct smp_ops_t psurge_smp_ops;
108 extern struct smp_ops_t core99_smp_ops;
109 #endif /* CONFIG_SMP */
110
pmac_show_cpuinfo(struct seq_file * m)111 static void pmac_show_cpuinfo(struct seq_file *m)
112 {
113 struct device_node *np;
114 const char *pp;
115 int plen;
116 int mbmodel;
117 unsigned int mbflags;
118 char* mbname;
119
120 mbmodel = pmac_call_feature(PMAC_FTR_GET_MB_INFO, NULL,
121 PMAC_MB_INFO_MODEL, 0);
122 mbflags = pmac_call_feature(PMAC_FTR_GET_MB_INFO, NULL,
123 PMAC_MB_INFO_FLAGS, 0);
124 if (pmac_call_feature(PMAC_FTR_GET_MB_INFO, NULL, PMAC_MB_INFO_NAME,
125 (long) &mbname) != 0)
126 mbname = "Unknown";
127
128 /* find motherboard type */
129 seq_printf(m, "machine\t\t: ");
130 np = of_find_node_by_path("/");
131 if (np != NULL) {
132 pp = of_get_property(np, "model", NULL);
133 if (pp != NULL)
134 seq_printf(m, "%s\n", pp);
135 else
136 seq_printf(m, "PowerMac\n");
137 pp = of_get_property(np, "compatible", &plen);
138 if (pp != NULL) {
139 seq_printf(m, "motherboard\t:");
140 while (plen > 0) {
141 int l = strlen(pp) + 1;
142 seq_printf(m, " %s", pp);
143 plen -= l;
144 pp += l;
145 }
146 seq_printf(m, "\n");
147 }
148 of_node_put(np);
149 } else
150 seq_printf(m, "PowerMac\n");
151
152 /* print parsed model */
153 seq_printf(m, "detected as\t: %d (%s)\n", mbmodel, mbname);
154 seq_printf(m, "pmac flags\t: %08x\n", mbflags);
155
156 /* find l2 cache info */
157 np = of_find_node_by_name(NULL, "l2-cache");
158 if (np == NULL)
159 np = of_find_node_by_type(NULL, "cache");
160 if (np != NULL) {
161 const unsigned int *ic =
162 of_get_property(np, "i-cache-size", NULL);
163 const unsigned int *dc =
164 of_get_property(np, "d-cache-size", NULL);
165 seq_printf(m, "L2 cache\t:");
166 has_l2cache = 1;
167 if (of_get_property(np, "cache-unified", NULL) != 0 && dc) {
168 seq_printf(m, " %dK unified", *dc / 1024);
169 } else {
170 if (ic)
171 seq_printf(m, " %dK instruction", *ic / 1024);
172 if (dc)
173 seq_printf(m, "%s %dK data",
174 (ic? " +": ""), *dc / 1024);
175 }
176 pp = of_get_property(np, "ram-type", NULL);
177 if (pp)
178 seq_printf(m, " %s", pp);
179 seq_printf(m, "\n");
180 of_node_put(np);
181 }
182
183 /* Indicate newworld/oldworld */
184 seq_printf(m, "pmac-generation\t: %s\n",
185 pmac_newworld ? "NewWorld" : "OldWorld");
186 }
187
188 #ifndef CONFIG_ADB_CUDA
find_via_cuda(void)189 int find_via_cuda(void)
190 {
191 struct device_node *dn = of_find_node_by_name(NULL, "via-cuda");
192
193 if (!dn)
194 return 0;
195 of_node_put(dn);
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
find_via_pmu(void)203 int find_via_pmu(void)
204 {
205 struct device_node *dn = of_find_node_by_name(NULL, "via-pmu");
206
207 if (!dn)
208 return 0;
209 of_node_put(dn);
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
smu_init(void)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
ohare_init(void)227 static void __init ohare_init(void)
228 {
229 struct device_node *dn;
230
231 /* this area has the CPU identification register
232 and some registers used by smp boards */
233 sysctrl_regs = (volatile u32 *) ioremap(0xf8000000, 0x1000);
234
235 /*
236 * Turn on the L2 cache.
237 * We assume that we have a PSX memory controller iff
238 * we have an ohare I/O controller.
239 */
240 dn = of_find_node_by_name(NULL, "ohare");
241 if (dn) {
242 of_node_put(dn);
243 if (((sysctrl_regs[2] >> 24) & 0xf) >= 3) {
244 if (sysctrl_regs[4] & 0x10)
245 sysctrl_regs[4] |= 0x04000020;
246 else
247 sysctrl_regs[4] |= 0x04000000;
248 if(has_l2cache)
249 printk(KERN_INFO "Level 2 cache enabled\n");
250 }
251 }
252 }
253
l2cr_init(void)254 static void __init l2cr_init(void)
255 {
256 /* Checks "l2cr-value" property in the registry */
257 if (cpu_has_feature(CPU_FTR_L2CR)) {
258 struct device_node *np = of_find_node_by_name(NULL, "cpus");
259 if (np == 0)
260 np = of_find_node_by_type(NULL, "cpu");
261 if (np != 0) {
262 const unsigned int *l2cr =
263 of_get_property(np, "l2cr-value", NULL);
264 if (l2cr != 0) {
265 ppc_override_l2cr = 1;
266 ppc_override_l2cr_value = *l2cr;
267 _set_L2CR(0);
268 _set_L2CR(ppc_override_l2cr_value);
269 }
270 of_node_put(np);
271 }
272 }
273
274 if (ppc_override_l2cr)
275 printk(KERN_INFO "L2CR overridden (0x%x), "
276 "backside cache is %s\n",
277 ppc_override_l2cr_value,
278 (ppc_override_l2cr_value & 0x80000000)
279 ? "enabled" : "disabled");
280 }
281 #endif
282
pmac_setup_arch(void)283 static void __init pmac_setup_arch(void)
284 {
285 struct device_node *cpu, *ic;
286 const int *fp;
287 unsigned long pvr;
288
289 pvr = PVR_VER(mfspr(SPRN_PVR));
290
291 /* Set loops_per_jiffy to a half-way reasonable value,
292 for use until calibrate_delay gets called. */
293 loops_per_jiffy = 50000000 / HZ;
294 cpu = of_find_node_by_type(NULL, "cpu");
295 if (cpu != NULL) {
296 fp = of_get_property(cpu, "clock-frequency", NULL);
297 if (fp != NULL) {
298 if (pvr >= 0x30 && pvr < 0x80)
299 /* PPC970 etc. */
300 loops_per_jiffy = *fp / (3 * HZ);
301 else if (pvr == 4 || pvr >= 8)
302 /* 604, G3, G4 etc. */
303 loops_per_jiffy = *fp / HZ;
304 else
305 /* 601, 603, etc. */
306 loops_per_jiffy = *fp / (2 * HZ);
307 }
308 of_node_put(cpu);
309 }
310
311 /* See if newworld or oldworld */
312 ic = of_find_node_with_property(NULL, "interrupt-controller");
313 if (ic) {
314 pmac_newworld = 1;
315 of_node_put(ic);
316 }
317
318 /* Lookup PCI hosts */
319 pmac_pci_init();
320
321 #ifdef CONFIG_PPC32
322 ohare_init();
323 l2cr_init();
324 #endif /* CONFIG_PPC32 */
325
326 find_via_cuda();
327 find_via_pmu();
328 smu_init();
329
330 #if defined(CONFIG_NVRAM) || defined(CONFIG_NVRAM_MODULE) || \
331 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 ic = of_find_node_by_name(NULL, "uni-n");
347 if (!ic)
348 ic = of_find_node_by_name(NULL, "u3");
349 if (!ic)
350 ic = of_find_node_by_name(NULL, "u4");
351 if (ic) {
352 of_node_put(ic);
353 smp_ops = &core99_smp_ops;
354 }
355 #ifdef CONFIG_PPC32
356 else {
357 /*
358 * We have to set bits in cpu_possible_map here since the
359 * secondary CPU(s) aren't in the device tree, and
360 * setup_per_cpu_areas only allocates per-cpu data for
361 * CPUs in the cpu_possible_map.
362 */
363 int cpu;
364
365 for (cpu = 1; cpu < 4 && cpu < NR_CPUS; ++cpu)
366 cpu_set(cpu, cpu_possible_map);
367 smp_ops = &psurge_smp_ops;
368 }
369 #endif
370 #endif /* CONFIG_SMP */
371
372 #ifdef CONFIG_ADB
373 if (strstr(cmd_line, "adb_sync")) {
374 extern int __adb_probe_sync;
375 __adb_probe_sync = 1;
376 }
377 #endif /* CONFIG_ADB */
378 }
379
380 #ifdef CONFIG_SCSI
note_scsi_host(struct device_node * node,void * host)381 void note_scsi_host(struct device_node *node, void *host)
382 {
383 }
384 EXPORT_SYMBOL(note_scsi_host);
385 #endif
386
387 static int initializing = 1;
388
pmac_late_init(void)389 static int pmac_late_init(void)
390 {
391 initializing = 0;
392 /* this is udbg (which is __init) and we can later use it during
393 * cpu hotplug (in smp_core99_kick_cpu) */
394 ppc_md.progress = NULL;
395 return 0;
396 }
397 machine_late_initcall(powermac, pmac_late_init);
398
399 /*
400 * This is __init_refok because we check for "initializing" before
401 * touching any of the __init sensitive things and "initializing"
402 * will be false after __init time. This can't be __init because it
403 * can be called whenever a disk is first accessed.
404 */
note_bootable_part(dev_t dev,int part,int goodness)405 void __init_refok note_bootable_part(dev_t dev, int part, int goodness)
406 {
407 char *p;
408
409 if (!initializing)
410 return;
411 if ((goodness <= current_root_goodness) &&
412 ROOT_DEV != DEFAULT_ROOT_DEVICE)
413 return;
414 p = strstr(boot_command_line, "root=");
415 if (p != NULL && (p == boot_command_line || p[-1] == ' '))
416 return;
417
418 ROOT_DEV = dev + part;
419 current_root_goodness = goodness;
420 }
421
422 #ifdef CONFIG_ADB_CUDA
cuda_restart(void)423 static void cuda_restart(void)
424 {
425 struct adb_request req;
426
427 cuda_request(&req, NULL, 2, CUDA_PACKET, CUDA_RESET_SYSTEM);
428 for (;;)
429 cuda_poll();
430 }
431
cuda_shutdown(void)432 static void cuda_shutdown(void)
433 {
434 struct adb_request req;
435
436 cuda_request(&req, NULL, 2, CUDA_PACKET, CUDA_POWERDOWN);
437 for (;;)
438 cuda_poll();
439 }
440
441 #else
442 #define cuda_restart()
443 #define cuda_shutdown()
444 #endif
445
446 #ifndef CONFIG_ADB_PMU
447 #define pmu_restart()
448 #define pmu_shutdown()
449 #endif
450
451 #ifndef CONFIG_PMAC_SMU
452 #define smu_restart()
453 #define smu_shutdown()
454 #endif
455
pmac_restart(char * cmd)456 static void pmac_restart(char *cmd)
457 {
458 switch (sys_ctrler) {
459 case SYS_CTRLER_CUDA:
460 cuda_restart();
461 break;
462 case SYS_CTRLER_PMU:
463 pmu_restart();
464 break;
465 case SYS_CTRLER_SMU:
466 smu_restart();
467 break;
468 default: ;
469 }
470 }
471
pmac_power_off(void)472 static void pmac_power_off(void)
473 {
474 switch (sys_ctrler) {
475 case SYS_CTRLER_CUDA:
476 cuda_shutdown();
477 break;
478 case SYS_CTRLER_PMU:
479 pmu_shutdown();
480 break;
481 case SYS_CTRLER_SMU:
482 smu_shutdown();
483 break;
484 default: ;
485 }
486 }
487
488 static void
pmac_halt(void)489 pmac_halt(void)
490 {
491 pmac_power_off();
492 }
493
494 /*
495 * Early initialization.
496 */
pmac_init_early(void)497 static void __init pmac_init_early(void)
498 {
499 /* Enable early btext debug if requested */
500 if (strstr(cmd_line, "btextdbg")) {
501 udbg_adb_init_early();
502 register_early_udbg_console();
503 }
504
505 /* Probe motherboard chipset */
506 pmac_feature_init();
507
508 /* Initialize debug stuff */
509 udbg_scc_init(!!strstr(cmd_line, "sccdbg"));
510 udbg_adb_init(!!strstr(cmd_line, "btextdbg"));
511
512 #ifdef CONFIG_PPC64
513 iommu_init_early_dart();
514 #endif
515 }
516
pmac_declare_of_platform_devices(void)517 static int __init pmac_declare_of_platform_devices(void)
518 {
519 struct device_node *np;
520
521 if (machine_is(chrp))
522 return -1;
523
524 np = of_find_node_by_name(NULL, "valkyrie");
525 if (np)
526 of_platform_device_create(np, "valkyrie", NULL);
527 np = of_find_node_by_name(NULL, "platinum");
528 if (np)
529 of_platform_device_create(np, "platinum", NULL);
530 np = of_find_node_by_type(NULL, "smu");
531 if (np) {
532 of_platform_device_create(np, "smu", NULL);
533 of_node_put(np);
534 }
535
536 return 0;
537 }
538 machine_device_initcall(powermac, pmac_declare_of_platform_devices);
539
540 #ifdef CONFIG_SERIAL_PMACZILOG_CONSOLE
541 /*
542 * This is called very early, as part of console_init() (typically just after
543 * time_init()). This function is respondible for trying to find a good
544 * default console on serial ports. It tries to match the open firmware
545 * default output with one of the available serial console drivers.
546 */
check_pmac_serial_console(void)547 static int __init check_pmac_serial_console(void)
548 {
549 struct device_node *prom_stdout = NULL;
550 int offset = 0;
551 const char *name;
552 #ifdef CONFIG_SERIAL_PMACZILOG_TTYS
553 char *devname = "ttyS";
554 #else
555 char *devname = "ttyPZ";
556 #endif
557
558 pr_debug(" -> check_pmac_serial_console()\n");
559
560 /* The user has requested a console so this is already set up. */
561 if (strstr(boot_command_line, "console=")) {
562 pr_debug(" console was specified !\n");
563 return -EBUSY;
564 }
565
566 if (!of_chosen) {
567 pr_debug(" of_chosen is NULL !\n");
568 return -ENODEV;
569 }
570
571 /* We are getting a weird phandle from OF ... */
572 /* ... So use the full path instead */
573 name = of_get_property(of_chosen, "linux,stdout-path", NULL);
574 if (name == NULL) {
575 pr_debug(" no linux,stdout-path !\n");
576 return -ENODEV;
577 }
578 prom_stdout = of_find_node_by_path(name);
579 if (!prom_stdout) {
580 pr_debug(" can't find stdout package %s !\n", name);
581 return -ENODEV;
582 }
583 pr_debug("stdout is %s\n", prom_stdout->full_name);
584
585 name = of_get_property(prom_stdout, "name", NULL);
586 if (!name) {
587 pr_debug(" stdout package has no name !\n");
588 goto not_found;
589 }
590
591 if (strcmp(name, "ch-a") == 0)
592 offset = 0;
593 else if (strcmp(name, "ch-b") == 0)
594 offset = 1;
595 else
596 goto not_found;
597 of_node_put(prom_stdout);
598
599 pr_debug("Found serial console at %s%d\n", devname, offset);
600
601 return add_preferred_console(devname, offset, NULL);
602
603 not_found:
604 pr_debug("No preferred console found !\n");
605 of_node_put(prom_stdout);
606 return -ENODEV;
607 }
608 console_initcall(check_pmac_serial_console);
609
610 #endif /* CONFIG_SERIAL_PMACZILOG_CONSOLE */
611
612 /*
613 * Called very early, MMU is off, device-tree isn't unflattened
614 */
pmac_probe(void)615 static int __init pmac_probe(void)
616 {
617 unsigned long root = of_get_flat_dt_root();
618
619 if (!of_flat_dt_is_compatible(root, "Power Macintosh") &&
620 !of_flat_dt_is_compatible(root, "MacRISC"))
621 return 0;
622
623 #ifdef CONFIG_PPC64
624 /*
625 * On U3, the DART (iommu) must be allocated now since it
626 * has an impact on htab_initialize (due to the large page it
627 * occupies having to be broken up so the DART itself is not
628 * part of the cacheable linar mapping
629 */
630 alloc_dart_table();
631
632 hpte_init_native();
633 #endif
634
635 #ifdef CONFIG_PPC32
636 /* isa_io_base gets set in pmac_pci_init */
637 ISA_DMA_THRESHOLD = ~0L;
638 DMA_MODE_READ = 1;
639 DMA_MODE_WRITE = 2;
640 #endif /* CONFIG_PPC32 */
641
642 #ifdef CONFIG_PMAC_SMU
643 /*
644 * SMU based G5s need some memory below 2Gb, at least the current
645 * driver needs that. We have to allocate it now. We allocate 4k
646 * (1 small page) for now.
647 */
648 smu_cmdbuf_abs = lmb_alloc_base(4096, 4096, 0x80000000UL);
649 #endif /* CONFIG_PMAC_SMU */
650
651 return 1;
652 }
653
654 #ifdef CONFIG_PPC64
655 /* Move that to pci.c */
pmac_pci_probe_mode(struct pci_bus * bus)656 static int pmac_pci_probe_mode(struct pci_bus *bus)
657 {
658 struct device_node *node = bus->sysdata;
659
660 /* We need to use normal PCI probing for the AGP bus,
661 * since the device for the AGP bridge isn't in the tree.
662 * Same for the PCIe host on U4 and the HT host bridge.
663 */
664 if (bus->self == NULL && (of_device_is_compatible(node, "u3-agp") ||
665 of_device_is_compatible(node, "u4-pcie") ||
666 of_device_is_compatible(node, "u3-ht")))
667 return PCI_PROBE_NORMAL;
668 return PCI_PROBE_DEVTREE;
669 }
670
671 #ifdef CONFIG_HOTPLUG_CPU
672 /* access per cpu vars from generic smp.c */
673 DECLARE_PER_CPU(int, cpu_state);
674
pmac_cpu_die(void)675 static void pmac_cpu_die(void)
676 {
677 /*
678 * turn off as much as possible, we'll be
679 * kicked out as this will only be invoked
680 * on core99 platforms for now ...
681 */
682
683 printk(KERN_INFO "CPU#%d offline\n", smp_processor_id());
684 __get_cpu_var(cpu_state) = CPU_DEAD;
685 smp_wmb();
686
687 /*
688 * during the path that leads here preemption is disabled,
689 * reenable it now so that when coming up preempt count is
690 * zero correctly
691 */
692 preempt_enable();
693
694 /*
695 * hard-disable interrupts for the non-NAP case, the NAP code
696 * needs to re-enable interrupts (but soft-disables them)
697 */
698 hard_irq_disable();
699
700 while (1) {
701 /* let's not take timer interrupts too often ... */
702 set_dec(0x7fffffff);
703
704 /* should always be true at this point */
705 if (cpu_has_feature(CPU_FTR_CAN_NAP))
706 power4_cpu_offline_powersave();
707 else {
708 HMT_low();
709 HMT_very_low();
710 }
711 }
712 }
713 #endif /* CONFIG_HOTPLUG_CPU */
714
715 #endif /* CONFIG_PPC64 */
716
define_machine(powermac)717 define_machine(powermac) {
718 .name = "PowerMac",
719 .probe = pmac_probe,
720 .setup_arch = pmac_setup_arch,
721 .init_early = pmac_init_early,
722 .show_cpuinfo = pmac_show_cpuinfo,
723 .init_IRQ = pmac_pic_init,
724 .get_irq = NULL, /* changed later */
725 .pci_irq_fixup = pmac_pci_irq_fixup,
726 .restart = pmac_restart,
727 .power_off = pmac_power_off,
728 .halt = pmac_halt,
729 .time_init = pmac_time_init,
730 .get_boot_time = pmac_get_boot_time,
731 .set_rtc_time = pmac_set_rtc_time,
732 .get_rtc_time = pmac_get_rtc_time,
733 .calibrate_decr = pmac_calibrate_decr,
734 .feature_call = pmac_do_feature_call,
735 .progress = udbg_progress,
736 #ifdef CONFIG_PPC64
737 .pci_probe_mode = pmac_pci_probe_mode,
738 .power_save = power4_idle,
739 .enable_pmcs = power4_enable_pmcs,
740 #endif /* CONFIG_PPC64 */
741 #ifdef CONFIG_PPC32
742 .pcibios_enable_device_hook = pmac_pci_enable_device_hook,
743 .pcibios_after_init = pmac_pcibios_after_init,
744 .phys_mem_access_prot = pci_phys_mem_access_prot,
745 #endif
746 #if defined(CONFIG_HOTPLUG_CPU) && defined(CONFIG_PPC64)
747 .cpu_die = pmac_cpu_die,
748 #endif
749 };
750