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 
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
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
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
217 int smu_init(void)
218 {
219 	/* should check and warn if SMU is present */
220 	return 0;
221 }
222 #endif
223 
224 #ifdef CONFIG_PPC32
225 static volatile u32 *sysctrl_regs;
226 
227 static void __init ohare_init(void)
228 {
229 	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 
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 
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
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 
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  */
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
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 
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 
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 
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
489 pmac_halt(void)
490 {
491 	pmac_power_off();
492 }
493 
494 /*
495  * Early initialization.
496  */
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 
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  */
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  */
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 */
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 
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 
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 #if defined(CONFIG_HOTPLUG_CPU) && defined(CONFIG_PPC32)
750 	.cpu_die		= generic_mach_cpu_die,
751 #endif
752 };
753