1293772
[GitHub/LineageOS/android_kernel_motorola_exynos9610.git] /
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/kexec.h>
64 #include <asm/pci-bridge.h>
65 #include <asm/ohare.h>
66 #include <asm/mediabay.h>
67 #include <asm/machdep.h>
68 #include <asm/dma.h>
69 #include <asm/cputable.h>
70 #include <asm/btext.h>
71 #include <asm/pmac_feature.h>
72 #include <asm/time.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/udbg.h>
78
79 #include "pmac.h"
80
81 #undef SHOW_GATWICK_IRQS
82
83 int ppc_override_l2cr = 0;
84 int ppc_override_l2cr_value;
85 int has_l2cache = 0;
86
87 int pmac_newworld;
88
89 static int current_root_goodness = -1;
90
91 extern struct machdep_calls pmac_md;
92
93 #define DEFAULT_ROOT_DEVICE Root_SDA1 /* sda1 - slightly silly choice */
94
95 #ifdef CONFIG_PPC64
96 int sccdbg;
97 #endif
98
99 sys_ctrler_t sys_ctrler = SYS_CTRLER_UNKNOWN;
100 EXPORT_SYMBOL(sys_ctrler);
101
102 #ifdef CONFIG_PMAC_SMU
103 unsigned long smu_cmdbuf_abs;
104 EXPORT_SYMBOL(smu_cmdbuf_abs);
105 #endif
106
107 #ifdef CONFIG_SMP
108 extern struct smp_ops_t psurge_smp_ops;
109 extern struct smp_ops_t core99_smp_ops;
110 #endif /* CONFIG_SMP */
111
112 static void pmac_show_cpuinfo(struct seq_file *m)
113 {
114 struct device_node *np;
115 const char *pp;
116 int plen;
117 int mbmodel;
118 unsigned int mbflags;
119 char* mbname;
120
121 mbmodel = pmac_call_feature(PMAC_FTR_GET_MB_INFO, NULL,
122 PMAC_MB_INFO_MODEL, 0);
123 mbflags = pmac_call_feature(PMAC_FTR_GET_MB_INFO, NULL,
124 PMAC_MB_INFO_FLAGS, 0);
125 if (pmac_call_feature(PMAC_FTR_GET_MB_INFO, NULL, PMAC_MB_INFO_NAME,
126 (long) &mbname) != 0)
127 mbname = "Unknown";
128
129 /* find motherboard type */
130 seq_printf(m, "machine\t\t: ");
131 np = of_find_node_by_path("/");
132 if (np != NULL) {
133 pp = of_get_property(np, "model", NULL);
134 if (pp != NULL)
135 seq_printf(m, "%s\n", pp);
136 else
137 seq_printf(m, "PowerMac\n");
138 pp = of_get_property(np, "compatible", &plen);
139 if (pp != NULL) {
140 seq_printf(m, "motherboard\t:");
141 while (plen > 0) {
142 int l = strlen(pp) + 1;
143 seq_printf(m, " %s", pp);
144 plen -= l;
145 pp += l;
146 }
147 seq_printf(m, "\n");
148 }
149 of_node_put(np);
150 } else
151 seq_printf(m, "PowerMac\n");
152
153 /* print parsed model */
154 seq_printf(m, "detected as\t: %d (%s)\n", mbmodel, mbname);
155 seq_printf(m, "pmac flags\t: %08x\n", mbflags);
156
157 /* find l2 cache info */
158 np = of_find_node_by_name(NULL, "l2-cache");
159 if (np == NULL)
160 np = of_find_node_by_type(NULL, "cache");
161 if (np != NULL) {
162 const unsigned int *ic =
163 of_get_property(np, "i-cache-size", NULL);
164 const unsigned int *dc =
165 of_get_property(np, "d-cache-size", NULL);
166 seq_printf(m, "L2 cache\t:");
167 has_l2cache = 1;
168 if (of_get_property(np, "cache-unified", NULL) != 0 && dc) {
169 seq_printf(m, " %dK unified", *dc / 1024);
170 } else {
171 if (ic)
172 seq_printf(m, " %dK instruction", *ic / 1024);
173 if (dc)
174 seq_printf(m, "%s %dK data",
175 (ic? " +": ""), *dc / 1024);
176 }
177 pp = of_get_property(np, "ram-type", NULL);
178 if (pp)
179 seq_printf(m, " %s", pp);
180 seq_printf(m, "\n");
181 of_node_put(np);
182 }
183
184 /* Indicate newworld/oldworld */
185 seq_printf(m, "pmac-generation\t: %s\n",
186 pmac_newworld ? "NewWorld" : "OldWorld");
187 }
188
189 #ifndef CONFIG_ADB_CUDA
190 int find_via_cuda(void)
191 {
192 struct device_node *dn = of_find_node_by_name(NULL, "via-cuda");
193
194 if (!dn)
195 return 0;
196 of_node_put(dn);
197 printk("WARNING ! Your machine is CUDA-based but your kernel\n");
198 printk(" wasn't compiled with CONFIG_ADB_CUDA option !\n");
199 return 0;
200 }
201 #endif
202
203 #ifndef CONFIG_ADB_PMU
204 int find_via_pmu(void)
205 {
206 struct device_node *dn = of_find_node_by_name(NULL, "via-pmu");
207
208 if (!dn)
209 return 0;
210 of_node_put(dn);
211 printk("WARNING ! Your machine is PMU-based but your kernel\n");
212 printk(" wasn't compiled with CONFIG_ADB_PMU option !\n");
213 return 0;
214 }
215 #endif
216
217 #ifndef CONFIG_PMAC_SMU
218 int smu_init(void)
219 {
220 /* should check and warn if SMU is present */
221 return 0;
222 }
223 #endif
224
225 #ifdef CONFIG_PPC32
226 static volatile u32 *sysctrl_regs;
227
228 static void __init ohare_init(void)
229 {
230 struct device_node *dn;
231
232 /* this area has the CPU identification register
233 and some registers used by smp boards */
234 sysctrl_regs = (volatile u32 *) ioremap(0xf8000000, 0x1000);
235
236 /*
237 * Turn on the L2 cache.
238 * We assume that we have a PSX memory controller iff
239 * we have an ohare I/O controller.
240 */
241 dn = of_find_node_by_name(NULL, "ohare");
242 if (dn) {
243 of_node_put(dn);
244 if (((sysctrl_regs[2] >> 24) & 0xf) >= 3) {
245 if (sysctrl_regs[4] & 0x10)
246 sysctrl_regs[4] |= 0x04000020;
247 else
248 sysctrl_regs[4] |= 0x04000000;
249 if(has_l2cache)
250 printk(KERN_INFO "Level 2 cache enabled\n");
251 }
252 }
253 }
254
255 static void __init l2cr_init(void)
256 {
257 /* Checks "l2cr-value" property in the registry */
258 if (cpu_has_feature(CPU_FTR_L2CR)) {
259 struct device_node *np = of_find_node_by_name(NULL, "cpus");
260 if (np == 0)
261 np = of_find_node_by_type(NULL, "cpu");
262 if (np != 0) {
263 const unsigned int *l2cr =
264 of_get_property(np, "l2cr-value", NULL);
265 if (l2cr != 0) {
266 ppc_override_l2cr = 1;
267 ppc_override_l2cr_value = *l2cr;
268 _set_L2CR(0);
269 _set_L2CR(ppc_override_l2cr_value);
270 }
271 of_node_put(np);
272 }
273 }
274
275 if (ppc_override_l2cr)
276 printk(KERN_INFO "L2CR overridden (0x%x), "
277 "backside cache is %s\n",
278 ppc_override_l2cr_value,
279 (ppc_override_l2cr_value & 0x80000000)
280 ? "enabled" : "disabled");
281 }
282 #endif
283
284 static void __init pmac_setup_arch(void)
285 {
286 struct device_node *cpu, *ic;
287 const int *fp;
288 unsigned long pvr;
289
290 pvr = PVR_VER(mfspr(SPRN_PVR));
291
292 /* Set loops_per_jiffy to a half-way reasonable value,
293 for use until calibrate_delay gets called. */
294 loops_per_jiffy = 50000000 / HZ;
295 cpu = of_find_node_by_type(NULL, "cpu");
296 if (cpu != NULL) {
297 fp = of_get_property(cpu, "clock-frequency", NULL);
298 if (fp != NULL) {
299 if (pvr >= 0x30 && pvr < 0x80)
300 /* PPC970 etc. */
301 loops_per_jiffy = *fp / (3 * HZ);
302 else if (pvr == 4 || pvr >= 8)
303 /* 604, G3, G4 etc. */
304 loops_per_jiffy = *fp / HZ;
305 else
306 /* 601, 603, etc. */
307 loops_per_jiffy = *fp / (2 * HZ);
308 }
309 of_node_put(cpu);
310 }
311
312 /* See if newworld or oldworld */
313 ic = of_find_node_with_property(NULL, "interrupt-controller");
314 if (ic) {
315 pmac_newworld = 1;
316 of_node_put(ic);
317 }
318
319 /* Lookup PCI hosts */
320 pmac_pci_init();
321
322 #ifdef CONFIG_PPC32
323 ohare_init();
324 l2cr_init();
325 #endif /* CONFIG_PPC32 */
326
327 find_via_cuda();
328 find_via_pmu();
329 smu_init();
330
331 #if defined(CONFIG_NVRAM) || defined(CONFIG_NVRAM_MODULE) || \
332 defined(CONFIG_PPC64)
333 pmac_nvram_init();
334 #endif
335
336 #ifdef CONFIG_PPC32
337 #ifdef CONFIG_BLK_DEV_INITRD
338 if (initrd_start)
339 ROOT_DEV = Root_RAM0;
340 else
341 #endif
342 ROOT_DEV = DEFAULT_ROOT_DEVICE;
343 #endif
344
345 #ifdef CONFIG_SMP
346 /* Check for Core99 */
347 ic = of_find_node_by_name(NULL, "uni-n");
348 if (!ic)
349 ic = of_find_node_by_name(NULL, "u3");
350 if (!ic)
351 ic = of_find_node_by_name(NULL, "u4");
352 if (ic) {
353 of_node_put(ic);
354 smp_ops = &core99_smp_ops;
355 }
356 #ifdef CONFIG_PPC32
357 else {
358 /*
359 * We have to set bits in cpu_possible_map here since the
360 * secondary CPU(s) aren't in the device tree, and
361 * setup_per_cpu_areas only allocates per-cpu data for
362 * CPUs in the cpu_possible_map.
363 */
364 int cpu;
365
366 for (cpu = 1; cpu < 4 && cpu < NR_CPUS; ++cpu)
367 cpu_set(cpu, cpu_possible_map);
368 smp_ops = &psurge_smp_ops;
369 }
370 #endif
371 #endif /* CONFIG_SMP */
372
373 #ifdef CONFIG_ADB
374 if (strstr(cmd_line, "adb_sync")) {
375 extern int __adb_probe_sync;
376 __adb_probe_sync = 1;
377 }
378 #endif /* CONFIG_ADB */
379 }
380
381 #ifdef CONFIG_SCSI
382 void note_scsi_host(struct device_node *node, void *host)
383 {
384 }
385 EXPORT_SYMBOL(note_scsi_host);
386 #endif
387
388 static int initializing = 1;
389
390 static int pmac_late_init(void)
391 {
392 initializing = 0;
393 /* this is udbg (which is __init) and we can later use it during
394 * cpu hotplug (in smp_core99_kick_cpu) */
395 ppc_md.progress = NULL;
396 return 0;
397 }
398 machine_late_initcall(powermac, pmac_late_init);
399
400 /*
401 * This is __init_refok because we check for "initializing" before
402 * touching any of the __init sensitive things and "initializing"
403 * will be false after __init time. This can't be __init because it
404 * can be called whenever a disk is first accessed.
405 */
406 void __init_refok note_bootable_part(dev_t dev, int part, int goodness)
407 {
408 char *p;
409
410 if (!initializing)
411 return;
412 if ((goodness <= current_root_goodness) &&
413 ROOT_DEV != DEFAULT_ROOT_DEVICE)
414 return;
415 p = strstr(boot_command_line, "root=");
416 if (p != NULL && (p == boot_command_line || p[-1] == ' '))
417 return;
418
419 ROOT_DEV = dev + part;
420 current_root_goodness = goodness;
421 }
422
423 #ifdef CONFIG_ADB_CUDA
424 static void cuda_restart(void)
425 {
426 struct adb_request req;
427
428 cuda_request(&req, NULL, 2, CUDA_PACKET, CUDA_RESET_SYSTEM);
429 for (;;)
430 cuda_poll();
431 }
432
433 static void cuda_shutdown(void)
434 {
435 struct adb_request req;
436
437 cuda_request(&req, NULL, 2, CUDA_PACKET, CUDA_POWERDOWN);
438 for (;;)
439 cuda_poll();
440 }
441
442 #else
443 #define cuda_restart()
444 #define cuda_shutdown()
445 #endif
446
447 #ifndef CONFIG_ADB_PMU
448 #define pmu_restart()
449 #define pmu_shutdown()
450 #endif
451
452 #ifndef CONFIG_PMAC_SMU
453 #define smu_restart()
454 #define smu_shutdown()
455 #endif
456
457 static void pmac_restart(char *cmd)
458 {
459 switch (sys_ctrler) {
460 case SYS_CTRLER_CUDA:
461 cuda_restart();
462 break;
463 case SYS_CTRLER_PMU:
464 pmu_restart();
465 break;
466 case SYS_CTRLER_SMU:
467 smu_restart();
468 break;
469 default: ;
470 }
471 }
472
473 static void pmac_power_off(void)
474 {
475 switch (sys_ctrler) {
476 case SYS_CTRLER_CUDA:
477 cuda_shutdown();
478 break;
479 case SYS_CTRLER_PMU:
480 pmu_shutdown();
481 break;
482 case SYS_CTRLER_SMU:
483 smu_shutdown();
484 break;
485 default: ;
486 }
487 }
488
489 static void
490 pmac_halt(void)
491 {
492 pmac_power_off();
493 }
494
495 /*
496 * Early initialization.
497 */
498 static void __init pmac_init_early(void)
499 {
500 /* Enable early btext debug if requested */
501 if (strstr(cmd_line, "btextdbg")) {
502 udbg_adb_init_early();
503 register_early_udbg_console();
504 }
505
506 /* Probe motherboard chipset */
507 pmac_feature_init();
508
509 /* Initialize debug stuff */
510 udbg_scc_init(!!strstr(cmd_line, "sccdbg"));
511 udbg_adb_init(!!strstr(cmd_line, "btextdbg"));
512
513 #ifdef CONFIG_PPC64
514 iommu_init_early_dart();
515 #endif
516 }
517
518 static int __init pmac_declare_of_platform_devices(void)
519 {
520 struct device_node *np;
521
522 if (machine_is(chrp))
523 return -1;
524
525 np = of_find_node_by_name(NULL, "valkyrie");
526 if (np)
527 of_platform_device_create(np, "valkyrie", NULL);
528 np = of_find_node_by_name(NULL, "platinum");
529 if (np)
530 of_platform_device_create(np, "platinum", NULL);
531 np = of_find_node_by_type(NULL, "smu");
532 if (np) {
533 of_platform_device_create(np, "smu", NULL);
534 of_node_put(np);
535 }
536
537 return 0;
538 }
539 machine_device_initcall(powermac, pmac_declare_of_platform_devices);
540
541 #ifdef CONFIG_SERIAL_PMACZILOG_CONSOLE
542 /*
543 * This is called very early, as part of console_init() (typically just after
544 * time_init()). This function is respondible for trying to find a good
545 * default console on serial ports. It tries to match the open firmware
546 * default output with one of the available serial console drivers.
547 */
548 static int __init check_pmac_serial_console(void)
549 {
550 struct device_node *prom_stdout = NULL;
551 int offset = 0;
552 const char *name;
553 #ifdef CONFIG_SERIAL_PMACZILOG_TTYS
554 char *devname = "ttyS";
555 #else
556 char *devname = "ttyPZ";
557 #endif
558
559 pr_debug(" -> check_pmac_serial_console()\n");
560
561 /* The user has requested a console so this is already set up. */
562 if (strstr(boot_command_line, "console=")) {
563 pr_debug(" console was specified !\n");
564 return -EBUSY;
565 }
566
567 if (!of_chosen) {
568 pr_debug(" of_chosen is NULL !\n");
569 return -ENODEV;
570 }
571
572 /* We are getting a weird phandle from OF ... */
573 /* ... So use the full path instead */
574 name = of_get_property(of_chosen, "linux,stdout-path", NULL);
575 if (name == NULL) {
576 pr_debug(" no linux,stdout-path !\n");
577 return -ENODEV;
578 }
579 prom_stdout = of_find_node_by_path(name);
580 if (!prom_stdout) {
581 pr_debug(" can't find stdout package %s !\n", name);
582 return -ENODEV;
583 }
584 pr_debug("stdout is %s\n", prom_stdout->full_name);
585
586 name = of_get_property(prom_stdout, "name", NULL);
587 if (!name) {
588 pr_debug(" stdout package has no name !\n");
589 goto not_found;
590 }
591
592 if (strcmp(name, "ch-a") == 0)
593 offset = 0;
594 else if (strcmp(name, "ch-b") == 0)
595 offset = 1;
596 else
597 goto not_found;
598 of_node_put(prom_stdout);
599
600 pr_debug("Found serial console at %s%d\n", devname, offset);
601
602 return add_preferred_console(devname, offset, NULL);
603
604 not_found:
605 pr_debug("No preferred console found !\n");
606 of_node_put(prom_stdout);
607 return -ENODEV;
608 }
609 console_initcall(check_pmac_serial_console);
610
611 #endif /* CONFIG_SERIAL_PMACZILOG_CONSOLE */
612
613 /*
614 * Called very early, MMU is off, device-tree isn't unflattened
615 */
616 static int __init pmac_probe(void)
617 {
618 unsigned long root = of_get_flat_dt_root();
619
620 if (!of_flat_dt_is_compatible(root, "Power Macintosh") &&
621 !of_flat_dt_is_compatible(root, "MacRISC"))
622 return 0;
623
624 #ifdef CONFIG_PPC64
625 /*
626 * On U3, the DART (iommu) must be allocated now since it
627 * has an impact on htab_initialize (due to the large page it
628 * occupies having to be broken up so the DART itself is not
629 * part of the cacheable linar mapping
630 */
631 alloc_dart_table();
632
633 hpte_init_native();
634 #endif
635
636 #ifdef CONFIG_PPC32
637 /* isa_io_base gets set in pmac_pci_init */
638 ISA_DMA_THRESHOLD = ~0L;
639 DMA_MODE_READ = 1;
640 DMA_MODE_WRITE = 2;
641 #endif /* CONFIG_PPC32 */
642
643 #ifdef CONFIG_PMAC_SMU
644 /*
645 * SMU based G5s need some memory below 2Gb, at least the current
646 * driver needs that. We have to allocate it now. We allocate 4k
647 * (1 small page) for now.
648 */
649 smu_cmdbuf_abs = lmb_alloc_base(4096, 4096, 0x80000000UL);
650 #endif /* CONFIG_PMAC_SMU */
651
652 return 1;
653 }
654
655 #ifdef CONFIG_PPC64
656 /* Move that to pci.c */
657 static int pmac_pci_probe_mode(struct pci_bus *bus)
658 {
659 struct device_node *node = bus->sysdata;
660
661 /* We need to use normal PCI probing for the AGP bus,
662 * since the device for the AGP bridge isn't in the tree.
663 * Same for the PCIe host on U4 and the HT host bridge.
664 */
665 if (bus->self == NULL && (of_device_is_compatible(node, "u3-agp") ||
666 of_device_is_compatible(node, "u4-pcie") ||
667 of_device_is_compatible(node, "u3-ht")))
668 return PCI_PROBE_NORMAL;
669 return PCI_PROBE_DEVTREE;
670 }
671
672 #ifdef CONFIG_HOTPLUG_CPU
673 /* access per cpu vars from generic smp.c */
674 DECLARE_PER_CPU(int, cpu_state);
675
676 static void pmac_cpu_die(void)
677 {
678 /*
679 * turn off as much as possible, we'll be
680 * kicked out as this will only be invoked
681 * on core99 platforms for now ...
682 */
683
684 printk(KERN_INFO "CPU#%d offline\n", smp_processor_id());
685 __get_cpu_var(cpu_state) = CPU_DEAD;
686 smp_wmb();
687
688 /*
689 * during the path that leads here preemption is disabled,
690 * reenable it now so that when coming up preempt count is
691 * zero correctly
692 */
693 preempt_enable();
694
695 /*
696 * hard-disable interrupts for the non-NAP case, the NAP code
697 * needs to re-enable interrupts (but soft-disables them)
698 */
699 hard_irq_disable();
700
701 while (1) {
702 /* let's not take timer interrupts too often ... */
703 set_dec(0x7fffffff);
704
705 /* should always be true at this point */
706 if (cpu_has_feature(CPU_FTR_CAN_NAP))
707 power4_cpu_offline_powersave();
708 else {
709 HMT_low();
710 HMT_very_low();
711 }
712 }
713 }
714 #endif /* CONFIG_HOTPLUG_CPU */
715
716 #endif /* CONFIG_PPC64 */
717
718 define_machine(powermac) {
719 .name = "PowerMac",
720 .probe = pmac_probe,
721 .setup_arch = pmac_setup_arch,
722 .init_early = pmac_init_early,
723 .show_cpuinfo = pmac_show_cpuinfo,
724 .init_IRQ = pmac_pic_init,
725 .get_irq = NULL, /* changed later */
726 .pci_irq_fixup = pmac_pci_irq_fixup,
727 .restart = pmac_restart,
728 .power_off = pmac_power_off,
729 .halt = pmac_halt,
730 .time_init = pmac_time_init,
731 .get_boot_time = pmac_get_boot_time,
732 .set_rtc_time = pmac_set_rtc_time,
733 .get_rtc_time = pmac_get_rtc_time,
734 .calibrate_decr = pmac_calibrate_decr,
735 .feature_call = pmac_do_feature_call,
736 .progress = udbg_progress,
737 #ifdef CONFIG_PPC64
738 .pci_probe_mode = pmac_pci_probe_mode,
739 .power_save = power4_idle,
740 .enable_pmcs = power4_enable_pmcs,
741 #ifdef CONFIG_KEXEC
742 .machine_kexec = default_machine_kexec,
743 .machine_kexec_prepare = default_machine_kexec_prepare,
744 .machine_crash_shutdown = default_machine_crash_shutdown,
745 #endif
746 #endif /* CONFIG_PPC64 */
747 #ifdef CONFIG_PPC32
748 .pcibios_enable_device_hook = pmac_pci_enable_device_hook,
749 .pcibios_after_init = pmac_pcibios_after_init,
750 .phys_mem_access_prot = pci_phys_mem_access_prot,
751 #endif
752 #if defined(CONFIG_HOTPLUG_CPU) && defined(CONFIG_PPC64)
753 .cpu_die = pmac_cpu_die,
754 #endif
755 };