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 #include <linux/of_device.h>
55 #include <linux/of_platform.h>
56 #include <linux/lmb.h>
57 
58 #include <asm/reg.h>
59 #include <asm/sections.h>
60 #include <asm/prom.h>
61 #include <asm/system.h>
62 #include <asm/pgtable.h>
63 #include <asm/io.h>
64 #include <asm/kexec.h>
65 #include <asm/pci-bridge.h>
66 #include <asm/ohare.h>
67 #include <asm/mediabay.h>
68 #include <asm/machdep.h>
69 #include <asm/dma.h>
70 #include <asm/cputable.h>
71 #include <asm/btext.h>
72 #include <asm/pmac_feature.h>
73 #include <asm/time.h>
74 #include <asm/mmu_context.h>
75 #include <asm/iommu.h>
76 #include <asm/smu.h>
77 #include <asm/pmc.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 int sccdbg;
98 #endif
99 
100 sys_ctrler_t sys_ctrler = SYS_CTRLER_UNKNOWN;
101 EXPORT_SYMBOL(sys_ctrler);
102 
103 #ifdef CONFIG_PMAC_SMU
104 unsigned long smu_cmdbuf_abs;
105 EXPORT_SYMBOL(smu_cmdbuf_abs);
106 #endif
107 
108 #ifdef CONFIG_SMP
109 extern struct smp_ops_t psurge_smp_ops;
110 extern struct smp_ops_t core99_smp_ops;
111 #endif /* CONFIG_SMP */
112 
113 static void pmac_show_cpuinfo(struct seq_file *m)
114 {
115 	struct device_node *np;
116 	const char *pp;
117 	int plen;
118 	int mbmodel;
119 	unsigned int mbflags;
120 	char* mbname;
121 
122 	mbmodel = pmac_call_feature(PMAC_FTR_GET_MB_INFO, NULL,
123 				    PMAC_MB_INFO_MODEL, 0);
124 	mbflags = pmac_call_feature(PMAC_FTR_GET_MB_INFO, NULL,
125 				    PMAC_MB_INFO_FLAGS, 0);
126 	if (pmac_call_feature(PMAC_FTR_GET_MB_INFO, NULL, PMAC_MB_INFO_NAME,
127 			      (long) &mbname) != 0)
128 		mbname = "Unknown";
129 
130 	/* find motherboard type */
131 	seq_printf(m, "machine\t\t: ");
132 	np = of_find_node_by_path("/");
133 	if (np != NULL) {
134 		pp = of_get_property(np, "model", NULL);
135 		if (pp != NULL)
136 			seq_printf(m, "%s\n", pp);
137 		else
138 			seq_printf(m, "PowerMac\n");
139 		pp = of_get_property(np, "compatible", &plen);
140 		if (pp != NULL) {
141 			seq_printf(m, "motherboard\t:");
142 			while (plen > 0) {
143 				int l = strlen(pp) + 1;
144 				seq_printf(m, " %s", pp);
145 				plen -= l;
146 				pp += l;
147 			}
148 			seq_printf(m, "\n");
149 		}
150 		of_node_put(np);
151 	} else
152 		seq_printf(m, "PowerMac\n");
153 
154 	/* print parsed model */
155 	seq_printf(m, "detected as\t: %d (%s)\n", mbmodel, mbname);
156 	seq_printf(m, "pmac flags\t: %08x\n", mbflags);
157 
158 	/* find l2 cache info */
159 	np = of_find_node_by_name(NULL, "l2-cache");
160 	if (np == NULL)
161 		np = of_find_node_by_type(NULL, "cache");
162 	if (np != NULL) {
163 		const unsigned int *ic =
164 			of_get_property(np, "i-cache-size", NULL);
165 		const unsigned int *dc =
166 			of_get_property(np, "d-cache-size", NULL);
167 		seq_printf(m, "L2 cache\t:");
168 		has_l2cache = 1;
169 		if (of_get_property(np, "cache-unified", NULL) != 0 && dc) {
170 			seq_printf(m, " %dK unified", *dc / 1024);
171 		} else {
172 			if (ic)
173 				seq_printf(m, " %dK instruction", *ic / 1024);
174 			if (dc)
175 				seq_printf(m, "%s %dK data",
176 					   (ic? " +": ""), *dc / 1024);
177 		}
178 		pp = of_get_property(np, "ram-type", NULL);
179 		if (pp)
180 			seq_printf(m, " %s", pp);
181 		seq_printf(m, "\n");
182 		of_node_put(np);
183 	}
184 
185 	/* Indicate newworld/oldworld */
186 	seq_printf(m, "pmac-generation\t: %s\n",
187 		   pmac_newworld ? "NewWorld" : "OldWorld");
188 }
189 
190 #ifndef CONFIG_ADB_CUDA
191 int find_via_cuda(void)
192 {
193 	struct device_node *dn = of_find_node_by_name(NULL, "via-cuda");
194 
195 	if (!dn)
196 		return 0;
197 	of_node_put(dn);
198 	printk("WARNING ! Your machine is CUDA-based but your kernel\n");
199 	printk("          wasn't compiled with CONFIG_ADB_CUDA option !\n");
200 	return 0;
201 }
202 #endif
203 
204 #ifndef CONFIG_ADB_PMU
205 int find_via_pmu(void)
206 {
207 	struct device_node *dn = of_find_node_by_name(NULL, "via-pmu");
208 
209 	if (!dn)
210 		return 0;
211 	of_node_put(dn);
212 	printk("WARNING ! Your machine is PMU-based but your kernel\n");
213 	printk("          wasn't compiled with CONFIG_ADB_PMU option !\n");
214 	return 0;
215 }
216 #endif
217 
218 #ifndef CONFIG_PMAC_SMU
219 int smu_init(void)
220 {
221 	/* should check and warn if SMU is present */
222 	return 0;
223 }
224 #endif
225 
226 #ifdef CONFIG_PPC32
227 static volatile u32 *sysctrl_regs;
228 
229 static void __init ohare_init(void)
230 {
231 	struct device_node *dn;
232 
233 	/* this area has the CPU identification register
234 	   and some registers used by smp boards */
235 	sysctrl_regs = (volatile u32 *) ioremap(0xf8000000, 0x1000);
236 
237 	/*
238 	 * Turn on the L2 cache.
239 	 * We assume that we have a PSX memory controller iff
240 	 * we have an ohare I/O controller.
241 	 */
242 	dn = of_find_node_by_name(NULL, "ohare");
243 	if (dn) {
244 		of_node_put(dn);
245 		if (((sysctrl_regs[2] >> 24) & 0xf) >= 3) {
246 			if (sysctrl_regs[4] & 0x10)
247 				sysctrl_regs[4] |= 0x04000020;
248 			else
249 				sysctrl_regs[4] |= 0x04000000;
250 			if(has_l2cache)
251 				printk(KERN_INFO "Level 2 cache enabled\n");
252 		}
253 	}
254 }
255 
256 static void __init l2cr_init(void)
257 {
258 	/* Checks "l2cr-value" property in the registry */
259 	if (cpu_has_feature(CPU_FTR_L2CR)) {
260 		struct device_node *np = of_find_node_by_name(NULL, "cpus");
261 		if (np == 0)
262 			np = of_find_node_by_type(NULL, "cpu");
263 		if (np != 0) {
264 			const unsigned int *l2cr =
265 				of_get_property(np, "l2cr-value", NULL);
266 			if (l2cr != 0) {
267 				ppc_override_l2cr = 1;
268 				ppc_override_l2cr_value = *l2cr;
269 				_set_L2CR(0);
270 				_set_L2CR(ppc_override_l2cr_value);
271 			}
272 			of_node_put(np);
273 		}
274 	}
275 
276 	if (ppc_override_l2cr)
277 		printk(KERN_INFO "L2CR overridden (0x%x), "
278 		       "backside cache is %s\n",
279 		       ppc_override_l2cr_value,
280 		       (ppc_override_l2cr_value & 0x80000000)
281 				? "enabled" : "disabled");
282 }
283 #endif
284 
285 static void __init pmac_setup_arch(void)
286 {
287 	struct device_node *cpu, *ic;
288 	const int *fp;
289 	unsigned long pvr;
290 
291 	pvr = PVR_VER(mfspr(SPRN_PVR));
292 
293 	/* Set loops_per_jiffy to a half-way reasonable value,
294 	   for use until calibrate_delay gets called. */
295 	loops_per_jiffy = 50000000 / HZ;
296 	cpu = of_find_node_by_type(NULL, "cpu");
297 	if (cpu != NULL) {
298 		fp = of_get_property(cpu, "clock-frequency", NULL);
299 		if (fp != NULL) {
300 			if (pvr >= 0x30 && pvr < 0x80)
301 				/* PPC970 etc. */
302 				loops_per_jiffy = *fp / (3 * HZ);
303 			else if (pvr == 4 || pvr >= 8)
304 				/* 604, G3, G4 etc. */
305 				loops_per_jiffy = *fp / HZ;
306 			else
307 				/* 601, 603, etc. */
308 				loops_per_jiffy = *fp / (2 * HZ);
309 		}
310 		of_node_put(cpu);
311 	}
312 
313 	/* See if newworld or oldworld */
314 	for (ic = NULL; (ic = of_find_all_nodes(ic)) != NULL; )
315 		if (of_get_property(ic, "interrupt-controller", NULL))
316 			break;
317 	if (ic) {
318 		pmac_newworld = 1;
319 		of_node_put(ic);
320 	}
321 
322 	/* Lookup PCI hosts */
323 	pmac_pci_init();
324 
325 #ifdef CONFIG_PPC32
326 	ohare_init();
327 	l2cr_init();
328 #endif /* CONFIG_PPC32 */
329 
330 	find_via_cuda();
331 	find_via_pmu();
332 	smu_init();
333 
334 #if defined(CONFIG_NVRAM) || defined(CONFIG_NVRAM_MODULE) || \
335     defined(CONFIG_PPC64)
336 	pmac_nvram_init();
337 #endif
338 
339 #ifdef CONFIG_PPC32
340 #ifdef CONFIG_BLK_DEV_INITRD
341 	if (initrd_start)
342 		ROOT_DEV = Root_RAM0;
343 	else
344 #endif
345 		ROOT_DEV = DEFAULT_ROOT_DEVICE;
346 #endif
347 
348 #ifdef CONFIG_SMP
349 	/* Check for Core99 */
350 	ic = of_find_node_by_name(NULL, "uni-n");
351 	if (!ic)
352 		ic = of_find_node_by_name(NULL, "u3");
353 	if (!ic)
354 		ic = of_find_node_by_name(NULL, "u4");
355 	if (ic) {
356 		of_node_put(ic);
357 		smp_ops = &core99_smp_ops;
358 	}
359 #ifdef CONFIG_PPC32
360 	else {
361 		/*
362 		 * We have to set bits in cpu_possible_map here since the
363 		 * secondary CPU(s) aren't in the device tree, and
364 		 * setup_per_cpu_areas only allocates per-cpu data for
365 		 * CPUs in the cpu_possible_map.
366 		 */
367 		int cpu;
368 
369 		for (cpu = 1; cpu < 4 && cpu < NR_CPUS; ++cpu)
370 			cpu_set(cpu, cpu_possible_map);
371 		smp_ops = &psurge_smp_ops;
372 	}
373 #endif
374 #endif /* CONFIG_SMP */
375 
376 #ifdef CONFIG_ADB
377 	if (strstr(cmd_line, "adb_sync")) {
378 		extern int __adb_probe_sync;
379 		__adb_probe_sync = 1;
380 	}
381 #endif /* CONFIG_ADB */
382 }
383 
384 #ifdef CONFIG_SCSI
385 void note_scsi_host(struct device_node *node, void *host)
386 {
387 }
388 EXPORT_SYMBOL(note_scsi_host);
389 #endif
390 
391 static int initializing = 1;
392 
393 static int pmac_late_init(void)
394 {
395 	initializing = 0;
396 	/* this is udbg (which is __init) and we can later use it during
397 	 * cpu hotplug (in smp_core99_kick_cpu) */
398 	ppc_md.progress = NULL;
399 	return 0;
400 }
401 machine_late_initcall(powermac, pmac_late_init);
402 
403 /*
404  * This is __init_refok because we check for "initializing" before
405  * touching any of the __init sensitive things and "initializing"
406  * will be false after __init time. This can't be __init because it
407  * can be called whenever a disk is first accessed.
408  */
409 void __init_refok note_bootable_part(dev_t dev, int part, int goodness)
410 {
411 	char *p;
412 
413 	if (!initializing)
414 		return;
415 	if ((goodness <= current_root_goodness) &&
416 	    ROOT_DEV != DEFAULT_ROOT_DEVICE)
417 		return;
418 	p = strstr(boot_command_line, "root=");
419 	if (p != NULL && (p == boot_command_line || p[-1] == ' '))
420 		return;
421 
422 	ROOT_DEV = dev + part;
423 	current_root_goodness = goodness;
424 }
425 
426 #ifdef CONFIG_ADB_CUDA
427 static void cuda_restart(void)
428 {
429 	struct adb_request req;
430 
431 	cuda_request(&req, NULL, 2, CUDA_PACKET, CUDA_RESET_SYSTEM);
432 	for (;;)
433 		cuda_poll();
434 }
435 
436 static void cuda_shutdown(void)
437 {
438 	struct adb_request req;
439 
440 	cuda_request(&req, NULL, 2, CUDA_PACKET, CUDA_POWERDOWN);
441 	for (;;)
442 		cuda_poll();
443 }
444 
445 #else
446 #define cuda_restart()
447 #define cuda_shutdown()
448 #endif
449 
450 #ifndef CONFIG_ADB_PMU
451 #define pmu_restart()
452 #define pmu_shutdown()
453 #endif
454 
455 #ifndef CONFIG_PMAC_SMU
456 #define smu_restart()
457 #define smu_shutdown()
458 #endif
459 
460 static void pmac_restart(char *cmd)
461 {
462 	switch (sys_ctrler) {
463 	case SYS_CTRLER_CUDA:
464 		cuda_restart();
465 		break;
466 	case SYS_CTRLER_PMU:
467 		pmu_restart();
468 		break;
469 	case SYS_CTRLER_SMU:
470 		smu_restart();
471 		break;
472 	default: ;
473 	}
474 }
475 
476 static void pmac_power_off(void)
477 {
478 	switch (sys_ctrler) {
479 	case SYS_CTRLER_CUDA:
480 		cuda_shutdown();
481 		break;
482 	case SYS_CTRLER_PMU:
483 		pmu_shutdown();
484 		break;
485 	case SYS_CTRLER_SMU:
486 		smu_shutdown();
487 		break;
488 	default: ;
489 	}
490 }
491 
492 static void
493 pmac_halt(void)
494 {
495 	pmac_power_off();
496 }
497 
498 /*
499  * Early initialization.
500  */
501 static void __init pmac_init_early(void)
502 {
503 	/* Enable early btext debug if requested */
504 	if (strstr(cmd_line, "btextdbg")) {
505 		udbg_adb_init_early();
506 		register_early_udbg_console();
507 	}
508 
509 	/* Probe motherboard chipset */
510 	pmac_feature_init();
511 
512 	/* Initialize debug stuff */
513 	udbg_scc_init(!!strstr(cmd_line, "sccdbg"));
514 	udbg_adb_init(!!strstr(cmd_line, "btextdbg"));
515 
516 #ifdef CONFIG_PPC64
517 	iommu_init_early_dart();
518 #endif
519 }
520 
521 static int __init pmac_declare_of_platform_devices(void)
522 {
523 	struct device_node *np;
524 
525 	if (machine_is(chrp))
526 		return -1;
527 
528 	np = of_find_node_by_name(NULL, "valkyrie");
529 	if (np)
530 		of_platform_device_create(np, "valkyrie", NULL);
531 	np = of_find_node_by_name(NULL, "platinum");
532 	if (np)
533 		of_platform_device_create(np, "platinum", NULL);
534         np = of_find_node_by_type(NULL, "smu");
535         if (np) {
536 		of_platform_device_create(np, "smu", NULL);
537 		of_node_put(np);
538 	}
539 
540 	return 0;
541 }
542 machine_device_initcall(powermac, pmac_declare_of_platform_devices);
543 
544 #ifdef CONFIG_SERIAL_PMACZILOG_CONSOLE
545 /*
546  * This is called very early, as part of console_init() (typically just after
547  * time_init()). This function is respondible for trying to find a good
548  * default console on serial ports. It tries to match the open firmware
549  * default output with one of the available serial console drivers.
550  */
551 static int __init check_pmac_serial_console(void)
552 {
553 	struct device_node *prom_stdout = NULL;
554 	int offset = 0;
555 	const char *name;
556 #ifdef CONFIG_SERIAL_PMACZILOG_TTYS
557 	char *devname = "ttyS";
558 #else
559 	char *devname = "ttyPZ";
560 #endif
561 
562 	pr_debug(" -> check_pmac_serial_console()\n");
563 
564 	/* The user has requested a console so this is already set up. */
565 	if (strstr(boot_command_line, "console=")) {
566 		pr_debug(" console was specified !\n");
567 		return -EBUSY;
568 	}
569 
570 	if (!of_chosen) {
571 		pr_debug(" of_chosen is NULL !\n");
572 		return -ENODEV;
573 	}
574 
575 	/* We are getting a weird phandle from OF ... */
576 	/* ... So use the full path instead */
577 	name = of_get_property(of_chosen, "linux,stdout-path", NULL);
578 	if (name == NULL) {
579 		pr_debug(" no linux,stdout-path !\n");
580 		return -ENODEV;
581 	}
582 	prom_stdout = of_find_node_by_path(name);
583 	if (!prom_stdout) {
584 		pr_debug(" can't find stdout package %s !\n", name);
585 		return -ENODEV;
586 	}
587 	pr_debug("stdout is %s\n", prom_stdout->full_name);
588 
589 	name = of_get_property(prom_stdout, "name", NULL);
590 	if (!name) {
591 		pr_debug(" stdout package has no name !\n");
592 		goto not_found;
593 	}
594 
595 	if (strcmp(name, "ch-a") == 0)
596 		offset = 0;
597 	else if (strcmp(name, "ch-b") == 0)
598 		offset = 1;
599 	else
600 		goto not_found;
601 	of_node_put(prom_stdout);
602 
603 	pr_debug("Found serial console at %s%d\n", devname, offset);
604 
605 	return add_preferred_console(devname, offset, NULL);
606 
607  not_found:
608 	pr_debug("No preferred console found !\n");
609 	of_node_put(prom_stdout);
610 	return -ENODEV;
611 }
612 console_initcall(check_pmac_serial_console);
613 
614 #endif /* CONFIG_SERIAL_PMACZILOG_CONSOLE */
615 
616 /*
617  * Called very early, MMU is off, device-tree isn't unflattened
618  */
619 static int __init pmac_probe(void)
620 {
621 	unsigned long root = of_get_flat_dt_root();
622 
623 	if (!of_flat_dt_is_compatible(root, "Power Macintosh") &&
624 	    !of_flat_dt_is_compatible(root, "MacRISC"))
625 		return 0;
626 
627 #ifdef CONFIG_PPC64
628 	/*
629 	 * On U3, the DART (iommu) must be allocated now since it
630 	 * has an impact on htab_initialize (due to the large page it
631 	 * occupies having to be broken up so the DART itself is not
632 	 * part of the cacheable linar mapping
633 	 */
634 	alloc_dart_table();
635 
636 	hpte_init_native();
637 #endif
638 
639 #ifdef CONFIG_PPC32
640 	/* isa_io_base gets set in pmac_pci_init */
641 	ISA_DMA_THRESHOLD = ~0L;
642 	DMA_MODE_READ = 1;
643 	DMA_MODE_WRITE = 2;
644 #endif /* CONFIG_PPC32 */
645 
646 #ifdef CONFIG_PMAC_SMU
647 	/*
648 	 * SMU based G5s need some memory below 2Gb, at least the current
649 	 * driver needs that. We have to allocate it now. We allocate 4k
650 	 * (1 small page) for now.
651 	 */
652 	smu_cmdbuf_abs = lmb_alloc_base(4096, 4096, 0x80000000UL);
653 #endif /* CONFIG_PMAC_SMU */
654 
655 	return 1;
656 }
657 
658 #ifdef CONFIG_PPC64
659 /* Move that to pci.c */
660 static int pmac_pci_probe_mode(struct pci_bus *bus)
661 {
662 	struct device_node *node = bus->sysdata;
663 
664 	/* We need to use normal PCI probing for the AGP bus,
665 	 * since the device for the AGP bridge isn't in the tree.
666 	 * Same for the PCIe host on U4 and the HT host bridge.
667 	 */
668 	if (bus->self == NULL && (of_device_is_compatible(node, "u3-agp") ||
669 				  of_device_is_compatible(node, "u4-pcie") ||
670 				  of_device_is_compatible(node, "u3-ht")))
671 		return PCI_PROBE_NORMAL;
672 	return PCI_PROBE_DEVTREE;
673 }
674 
675 #ifdef CONFIG_HOTPLUG_CPU
676 /* access per cpu vars from generic smp.c */
677 DECLARE_PER_CPU(int, cpu_state);
678 
679 static void pmac_cpu_die(void)
680 {
681 	/*
682 	 * turn off as much as possible, we'll be
683 	 * kicked out as this will only be invoked
684 	 * on core99 platforms for now ...
685 	 */
686 
687 	printk(KERN_INFO "CPU#%d offline\n", smp_processor_id());
688 	__get_cpu_var(cpu_state) = CPU_DEAD;
689 	smp_wmb();
690 
691 	/*
692 	 * during the path that leads here preemption is disabled,
693 	 * reenable it now so that when coming up preempt count is
694 	 * zero correctly
695 	 */
696 	preempt_enable();
697 
698 	/*
699 	 * hard-disable interrupts for the non-NAP case, the NAP code
700 	 * needs to re-enable interrupts (but soft-disables them)
701 	 */
702 	hard_irq_disable();
703 
704 	while (1) {
705 		/* let's not take timer interrupts too often ... */
706 		set_dec(0x7fffffff);
707 
708 		/* should always be true at this point */
709 		if (cpu_has_feature(CPU_FTR_CAN_NAP))
710 			power4_cpu_offline_powersave();
711 		else {
712 			HMT_low();
713 			HMT_very_low();
714 		}
715 	}
716 }
717 #endif /* CONFIG_HOTPLUG_CPU */
718 
719 #endif /* CONFIG_PPC64 */
720 
721 define_machine(powermac) {
722 	.name			= "PowerMac",
723 	.probe			= pmac_probe,
724 	.setup_arch		= pmac_setup_arch,
725 	.init_early		= pmac_init_early,
726 	.show_cpuinfo		= pmac_show_cpuinfo,
727 	.init_IRQ		= pmac_pic_init,
728 	.get_irq		= NULL,	/* changed later */
729 	.pci_irq_fixup		= pmac_pci_irq_fixup,
730 	.restart		= pmac_restart,
731 	.power_off		= pmac_power_off,
732 	.halt			= pmac_halt,
733 	.time_init		= pmac_time_init,
734 	.get_boot_time		= pmac_get_boot_time,
735 	.set_rtc_time		= pmac_set_rtc_time,
736 	.get_rtc_time		= pmac_get_rtc_time,
737 	.calibrate_decr		= pmac_calibrate_decr,
738 	.feature_call		= pmac_do_feature_call,
739 	.progress		= udbg_progress,
740 #ifdef CONFIG_PPC64
741 	.pci_probe_mode		= pmac_pci_probe_mode,
742 	.power_save		= power4_idle,
743 	.enable_pmcs		= power4_enable_pmcs,
744 #ifdef CONFIG_KEXEC
745 	.machine_kexec		= default_machine_kexec,
746 	.machine_kexec_prepare	= default_machine_kexec_prepare,
747 	.machine_crash_shutdown	= default_machine_crash_shutdown,
748 #endif
749 #endif /* CONFIG_PPC64 */
750 #ifdef CONFIG_PPC32
751 	.pcibios_enable_device_hook = pmac_pci_enable_device_hook,
752 	.pcibios_after_init	= pmac_pcibios_after_init,
753 	.phys_mem_access_prot	= pci_phys_mem_access_prot,
754 #endif
755 #if defined(CONFIG_HOTPLUG_CPU) && defined(CONFIG_PPC64)
756 	.cpu_die		= pmac_cpu_die,
757 #endif
758 };
759