Merge by hand from Linus' tree.
[linux-2.6] / arch / ppc / platforms / pmac_setup.c
1 /*
2  *  arch/ppc/platforms/setup.c
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@cs.anu.edu.au)
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/config.h>
27 #include <linux/init.h>
28 #include <linux/errno.h>
29 #include <linux/sched.h>
30 #include <linux/kernel.h>
31 #include <linux/mm.h>
32 #include <linux/stddef.h>
33 #include <linux/unistd.h>
34 #include <linux/ptrace.h>
35 #include <linux/slab.h>
36 #include <linux/user.h>
37 #include <linux/a.out.h>
38 #include <linux/tty.h>
39 #include <linux/string.h>
40 #include <linux/delay.h>
41 #include <linux/ioport.h>
42 #include <linux/major.h>
43 #include <linux/initrd.h>
44 #include <linux/vt_kern.h>
45 #include <linux/console.h>
46 #include <linux/ide.h>
47 #include <linux/pci.h>
48 #include <linux/adb.h>
49 #include <linux/cuda.h>
50 #include <linux/pmu.h>
51 #include <linux/irq.h>
52 #include <linux/seq_file.h>
53 #include <linux/root_dev.h>
54 #include <linux/bitops.h>
55 #include <linux/suspend.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/bootx.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/of_device.h>
74 #include <asm/mmu_context.h>
75
76 #include "pmac_pic.h"
77 #include "mem_pieces.h"
78
79 #undef SHOW_GATWICK_IRQS
80
81 extern long pmac_time_init(void);
82 extern unsigned long pmac_get_rtc_time(void);
83 extern int pmac_set_rtc_time(unsigned long nowtime);
84 extern void pmac_read_rtc_time(void);
85 extern void pmac_calibrate_decr(void);
86 extern void pmac_pcibios_fixup(void);
87 extern void pmac_find_bridges(void);
88 extern unsigned long pmac_ide_get_base(int index);
89 extern void pmac_ide_init_hwif_ports(hw_regs_t *hw,
90         unsigned long data_port, unsigned long ctrl_port, int *irq);
91
92 extern void pmac_nvram_update(void);
93 extern unsigned char pmac_nvram_read_byte(int addr);
94 extern void pmac_nvram_write_byte(int addr, unsigned char val);
95 extern int pmac_pci_enable_device_hook(struct pci_dev *dev, int initial);
96 extern void pmac_pcibios_after_init(void);
97 extern int of_show_percpuinfo(struct seq_file *m, int i);
98
99 struct device_node *memory_node;
100
101 unsigned char drive_info;
102
103 int ppc_override_l2cr = 0;
104 int ppc_override_l2cr_value;
105 int has_l2cache = 0;
106
107 static int current_root_goodness = -1;
108
109 extern int pmac_newworld;
110
111 #define DEFAULT_ROOT_DEVICE Root_SDA1   /* sda1 - slightly silly choice */
112
113 extern void zs_kgdb_hook(int tty_num);
114 static void ohare_init(void);
115 #ifdef CONFIG_BOOTX_TEXT
116 static void pmac_progress(char *s, unsigned short hex);
117 #endif
118
119 sys_ctrler_t sys_ctrler = SYS_CTRLER_UNKNOWN;
120
121 #ifdef CONFIG_SMP
122 extern struct smp_ops_t psurge_smp_ops;
123 extern struct smp_ops_t core99_smp_ops;
124 #endif /* CONFIG_SMP */
125
126 static int
127 pmac_show_cpuinfo(struct seq_file *m)
128 {
129         struct device_node *np;
130         char *pp;
131         int plen;
132         int mbmodel = pmac_call_feature(PMAC_FTR_GET_MB_INFO,
133                 NULL, PMAC_MB_INFO_MODEL, 0);
134         unsigned int mbflags = (unsigned int)pmac_call_feature(PMAC_FTR_GET_MB_INFO,
135                 NULL, PMAC_MB_INFO_FLAGS, 0);
136         char* mbname;
137
138         if (pmac_call_feature(PMAC_FTR_GET_MB_INFO, NULL, PMAC_MB_INFO_NAME, (int)&mbname) != 0)
139                 mbname = "Unknown";
140
141         /* find motherboard type */
142         seq_printf(m, "machine\t\t: ");
143         np = find_devices("device-tree");
144         if (np != NULL) {
145                 pp = (char *) get_property(np, "model", NULL);
146                 if (pp != NULL)
147                         seq_printf(m, "%s\n", pp);
148                 else
149                         seq_printf(m, "PowerMac\n");
150                 pp = (char *) get_property(np, "compatible", &plen);
151                 if (pp != NULL) {
152                         seq_printf(m, "motherboard\t:");
153                         while (plen > 0) {
154                                 int l = strlen(pp) + 1;
155                                 seq_printf(m, " %s", pp);
156                                 plen -= l;
157                                 pp += l;
158                         }
159                         seq_printf(m, "\n");
160                 }
161         } else
162                 seq_printf(m, "PowerMac\n");
163
164         /* print parsed model */
165         seq_printf(m, "detected as\t: %d (%s)\n", mbmodel, mbname);
166         seq_printf(m, "pmac flags\t: %08x\n", mbflags);
167
168         /* find l2 cache info */
169         np = find_devices("l2-cache");
170         if (np == 0)
171                 np = find_type_devices("cache");
172         if (np != 0) {
173                 unsigned int *ic = (unsigned int *)
174                         get_property(np, "i-cache-size", NULL);
175                 unsigned int *dc = (unsigned int *)
176                         get_property(np, "d-cache-size", NULL);
177                 seq_printf(m, "L2 cache\t:");
178                 has_l2cache = 1;
179                 if (get_property(np, "cache-unified", NULL) != 0 && dc) {
180                         seq_printf(m, " %dK unified", *dc / 1024);
181                 } else {
182                         if (ic)
183                                 seq_printf(m, " %dK instruction", *ic / 1024);
184                         if (dc)
185                                 seq_printf(m, "%s %dK data",
186                                            (ic? " +": ""), *dc / 1024);
187                 }
188                 pp = get_property(np, "ram-type", NULL);
189                 if (pp)
190                         seq_printf(m, " %s", pp);
191                 seq_printf(m, "\n");
192         }
193
194         /* find ram info */
195         np = find_devices("memory");
196         if (np != 0) {
197                 int n;
198                 struct reg_property *reg = (struct reg_property *)
199                         get_property(np, "reg", &n);
200
201                 if (reg != 0) {
202                         unsigned long total = 0;
203
204                         for (n /= sizeof(struct reg_property); n > 0; --n)
205                                 total += (reg++)->size;
206                         seq_printf(m, "memory\t\t: %luMB\n", total >> 20);
207                 }
208         }
209
210         /* Checks "l2cr-value" property in the registry */
211         np = find_devices("cpus");
212         if (np == 0)
213                 np = find_type_devices("cpu");
214         if (np != 0) {
215                 unsigned int *l2cr = (unsigned int *)
216                         get_property(np, "l2cr-value", NULL);
217                 if (l2cr != 0) {
218                         seq_printf(m, "l2cr override\t: 0x%x\n", *l2cr);
219                 }
220         }
221
222         /* Indicate newworld/oldworld */
223         seq_printf(m, "pmac-generation\t: %s\n",
224                    pmac_newworld ? "NewWorld" : "OldWorld");
225
226
227         return 0;
228 }
229
230 static int
231 pmac_show_percpuinfo(struct seq_file *m, int i)
232 {
233 #ifdef CONFIG_CPU_FREQ_PMAC
234         extern unsigned int pmac_get_one_cpufreq(int i);
235         unsigned int freq = pmac_get_one_cpufreq(i);
236         if (freq != 0) {
237                 seq_printf(m, "clock\t\t: %dMHz\n", freq/1000);
238                 return 0;
239         }
240 #endif /* CONFIG_CPU_FREQ_PMAC */
241         return of_show_percpuinfo(m, i);
242 }
243
244 static volatile u32 *sysctrl_regs;
245
246 void __init
247 pmac_setup_arch(void)
248 {
249         struct device_node *cpu;
250         int *fp;
251         unsigned long pvr;
252
253         pvr = PVR_VER(mfspr(SPRN_PVR));
254
255         /* Set loops_per_jiffy to a half-way reasonable value,
256            for use until calibrate_delay gets called. */
257         cpu = find_type_devices("cpu");
258         if (cpu != 0) {
259                 fp = (int *) get_property(cpu, "clock-frequency", NULL);
260                 if (fp != 0) {
261                         if (pvr == 4 || pvr >= 8)
262                                 /* 604, G3, G4 etc. */
263                                 loops_per_jiffy = *fp / HZ;
264                         else
265                                 /* 601, 603, etc. */
266                                 loops_per_jiffy = *fp / (2*HZ);
267                 } else
268                         loops_per_jiffy = 50000000 / HZ;
269         }
270
271         /* this area has the CPU identification register
272            and some registers used by smp boards */
273         sysctrl_regs = (volatile u32 *) ioremap(0xf8000000, 0x1000);
274         ohare_init();
275
276         /* Lookup PCI hosts */
277         pmac_find_bridges();
278
279         /* Checks "l2cr-value" property in the registry */
280         if (cpu_has_feature(CPU_FTR_L2CR)) {
281                 struct device_node *np = find_devices("cpus");
282                 if (np == 0)
283                         np = find_type_devices("cpu");
284                 if (np != 0) {
285                         unsigned int *l2cr = (unsigned int *)
286                                 get_property(np, "l2cr-value", NULL);
287                         if (l2cr != 0) {
288                                 ppc_override_l2cr = 1;
289                                 ppc_override_l2cr_value = *l2cr;
290                                 _set_L2CR(0);
291                                 _set_L2CR(ppc_override_l2cr_value);
292                         }
293                 }
294         }
295
296         if (ppc_override_l2cr)
297                 printk(KERN_INFO "L2CR overriden (0x%x), backside cache is %s\n",
298                         ppc_override_l2cr_value, (ppc_override_l2cr_value & 0x80000000)
299                                 ? "enabled" : "disabled");
300
301 #ifdef CONFIG_KGDB
302         zs_kgdb_hook(0);
303 #endif
304
305 #ifdef CONFIG_ADB_CUDA
306         find_via_cuda();
307 #else
308         if (find_devices("via-cuda")) {
309                 printk("WARNING ! Your machine is Cuda based but your kernel\n");
310                 printk("          wasn't compiled with CONFIG_ADB_CUDA option !\n");
311         }
312 #endif
313 #ifdef CONFIG_ADB_PMU
314         find_via_pmu();
315 #else
316         if (find_devices("via-pmu")) {
317                 printk("WARNING ! Your machine is PMU based but your kernel\n");
318                 printk("          wasn't compiled with CONFIG_ADB_PMU option !\n");
319         }
320 #endif
321 #ifdef CONFIG_NVRAM
322         pmac_nvram_init();
323 #endif
324 #ifdef CONFIG_BLK_DEV_INITRD
325         if (initrd_start)
326                 ROOT_DEV = Root_RAM0;
327         else
328 #endif
329                 ROOT_DEV = DEFAULT_ROOT_DEVICE;
330
331 #ifdef CONFIG_SMP
332         /* Check for Core99 */
333         if (find_devices("uni-n") || find_devices("u3"))
334                 ppc_md.smp_ops = &core99_smp_ops;
335         else
336                 ppc_md.smp_ops = &psurge_smp_ops;
337 #endif /* CONFIG_SMP */
338
339         pci_create_OF_bus_map();
340 }
341
342 static void __init ohare_init(void)
343 {
344         /*
345          * Turn on the L2 cache.
346          * We assume that we have a PSX memory controller iff
347          * we have an ohare I/O controller.
348          */
349         if (find_devices("ohare") != NULL) {
350                 if (((sysctrl_regs[2] >> 24) & 0xf) >= 3) {
351                         if (sysctrl_regs[4] & 0x10)
352                                 sysctrl_regs[4] |= 0x04000020;
353                         else
354                                 sysctrl_regs[4] |= 0x04000000;
355                         if(has_l2cache)
356                                 printk(KERN_INFO "Level 2 cache enabled\n");
357                 }
358         }
359 }
360
361 extern char *bootpath;
362 extern char *bootdevice;
363 void *boot_host;
364 int boot_target;
365 int boot_part;
366 extern dev_t boot_dev;
367
368 #ifdef CONFIG_SCSI
369 void __init
370 note_scsi_host(struct device_node *node, void *host)
371 {
372         int l;
373         char *p;
374
375         l = strlen(node->full_name);
376         if (bootpath != NULL && bootdevice != NULL
377             && strncmp(node->full_name, bootdevice, l) == 0
378             && (bootdevice[l] == '/' || bootdevice[l] == 0)) {
379                 boot_host = host;
380                 /*
381                  * There's a bug in OF 1.0.5.  (Why am I not surprised.)
382                  * If you pass a path like scsi/sd@1:0 to canon, it returns
383                  * something like /bandit@F2000000/gc@10/53c94@10000/sd@0,0
384                  * That is, the scsi target number doesn't get preserved.
385                  * So we pick the target number out of bootpath and use that.
386                  */
387                 p = strstr(bootpath, "/sd@");
388                 if (p != NULL) {
389                         p += 4;
390                         boot_target = simple_strtoul(p, NULL, 10);
391                         p = strchr(p, ':');
392                         if (p != NULL)
393                                 boot_part = simple_strtoul(p + 1, NULL, 10);
394                 }
395         }
396 }
397 #endif
398
399 #if defined(CONFIG_BLK_DEV_IDE) && defined(CONFIG_BLK_DEV_IDE_PMAC)
400 static dev_t __init
401 find_ide_boot(void)
402 {
403         char *p;
404         int n;
405         dev_t __init pmac_find_ide_boot(char *bootdevice, int n);
406
407         if (bootdevice == NULL)
408                 return 0;
409         p = strrchr(bootdevice, '/');
410         if (p == NULL)
411                 return 0;
412         n = p - bootdevice;
413
414         return pmac_find_ide_boot(bootdevice, n);
415 }
416 #endif /* CONFIG_BLK_DEV_IDE && CONFIG_BLK_DEV_IDE_PMAC */
417
418 static void __init
419 find_boot_device(void)
420 {
421 #if defined(CONFIG_BLK_DEV_IDE) && defined(CONFIG_BLK_DEV_IDE_PMAC)
422         boot_dev = find_ide_boot();
423 #endif
424 }
425
426 static int initializing = 1;
427 /* TODO: Merge the suspend-to-ram with the common code !!!
428  * currently, this is a stub implementation for suspend-to-disk
429  * only
430  */
431
432 #ifdef CONFIG_SOFTWARE_SUSPEND
433
434 static int pmac_pm_prepare(suspend_state_t state)
435 {
436         printk(KERN_DEBUG "%s(%d)\n", __FUNCTION__, state);
437
438         return 0;
439 }
440
441 static int pmac_pm_enter(suspend_state_t state)
442 {
443         printk(KERN_DEBUG "%s(%d)\n", __FUNCTION__, state);
444
445         /* Giveup the lazy FPU & vec so we don't have to back them
446          * up from the low level code
447          */
448         enable_kernel_fp();
449
450 #ifdef CONFIG_ALTIVEC
451         if (cur_cpu_spec->cpu_features & CPU_FTR_ALTIVEC)
452                 enable_kernel_altivec();
453 #endif /* CONFIG_ALTIVEC */
454
455         return 0;
456 }
457
458 static int pmac_pm_finish(suspend_state_t state)
459 {
460         printk(KERN_DEBUG "%s(%d)\n", __FUNCTION__, state);
461
462         /* Restore userland MMU context */
463         set_context(current->active_mm->context, current->active_mm->pgd);
464
465         return 0;
466 }
467
468 static struct pm_ops pmac_pm_ops = {
469         .pm_disk_mode   = PM_DISK_SHUTDOWN,
470         .prepare        = pmac_pm_prepare,
471         .enter          = pmac_pm_enter,
472         .finish         = pmac_pm_finish,
473 };
474
475 #endif /* CONFIG_SOFTWARE_SUSPEND */
476
477 static int pmac_late_init(void)
478 {
479         initializing = 0;
480 #ifdef CONFIG_SOFTWARE_SUSPEND
481         pm_set_ops(&pmac_pm_ops);
482 #endif /* CONFIG_SOFTWARE_SUSPEND */
483         return 0;
484 }
485
486 late_initcall(pmac_late_init);
487
488 /* can't be __init - can be called whenever a disk is first accessed */
489 void
490 note_bootable_part(dev_t dev, int part, int goodness)
491 {
492         static int found_boot = 0;
493         char *p;
494
495         if (!initializing)
496                 return;
497         if ((goodness <= current_root_goodness) &&
498             ROOT_DEV != DEFAULT_ROOT_DEVICE)
499                 return;
500         p = strstr(saved_command_line, "root=");
501         if (p != NULL && (p == saved_command_line || p[-1] == ' '))
502                 return;
503
504         if (!found_boot) {
505                 find_boot_device();
506                 found_boot = 1;
507         }
508         if (!boot_dev || dev == boot_dev) {
509                 ROOT_DEV = dev + part;
510                 boot_dev = 0;
511                 current_root_goodness = goodness;
512         }
513 }
514
515 static void
516 pmac_restart(char *cmd)
517 {
518 #ifdef CONFIG_ADB_CUDA
519         struct adb_request req;
520 #endif /* CONFIG_ADB_CUDA */
521
522         switch (sys_ctrler) {
523 #ifdef CONFIG_ADB_CUDA
524         case SYS_CTRLER_CUDA:
525                 cuda_request(&req, NULL, 2, CUDA_PACKET,
526                              CUDA_RESET_SYSTEM);
527                 for (;;)
528                         cuda_poll();
529                 break;
530 #endif /* CONFIG_ADB_CUDA */
531 #ifdef CONFIG_ADB_PMU
532         case SYS_CTRLER_PMU:
533                 pmu_restart();
534                 break;
535 #endif /* CONFIG_ADB_PMU */
536         default: ;
537         }
538 }
539
540 static void
541 pmac_power_off(void)
542 {
543 #ifdef CONFIG_ADB_CUDA
544         struct adb_request req;
545 #endif /* CONFIG_ADB_CUDA */
546
547         switch (sys_ctrler) {
548 #ifdef CONFIG_ADB_CUDA
549         case SYS_CTRLER_CUDA:
550                 cuda_request(&req, NULL, 2, CUDA_PACKET,
551                              CUDA_POWERDOWN);
552                 for (;;)
553                         cuda_poll();
554                 break;
555 #endif /* CONFIG_ADB_CUDA */
556 #ifdef CONFIG_ADB_PMU
557         case SYS_CTRLER_PMU:
558                 pmu_shutdown();
559                 break;
560 #endif /* CONFIG_ADB_PMU */
561         default: ;
562         }
563 }
564
565 static void
566 pmac_halt(void)
567 {
568    pmac_power_off();
569 }
570
571 /*
572  * Read in a property describing some pieces of memory.
573  */
574
575 static int __init
576 get_mem_prop(char *name, struct mem_pieces *mp)
577 {
578         struct reg_property *rp;
579         int i, s;
580         unsigned int *ip;
581         int nac = prom_n_addr_cells(memory_node);
582         int nsc = prom_n_size_cells(memory_node);
583
584         ip = (unsigned int *) get_property(memory_node, name, &s);
585         if (ip == NULL) {
586                 printk(KERN_ERR "error: couldn't get %s property on /memory\n",
587                        name);
588                 return 0;
589         }
590         s /= (nsc + nac) * 4;
591         rp = mp->regions;
592         for (i = 0; i < s; ++i, ip += nac+nsc) {
593                 if (nac >= 2 && ip[nac-2] != 0)
594                         continue;
595                 rp->address = ip[nac-1];
596                 if (nsc >= 2 && ip[nac+nsc-2] != 0)
597                         rp->size = ~0U;
598                 else
599                         rp->size = ip[nac+nsc-1];
600                 ++rp;
601         }
602         mp->n_regions = rp - mp->regions;
603
604         /* Make sure the pieces are sorted. */
605         mem_pieces_sort(mp);
606         mem_pieces_coalesce(mp);
607         return 1;
608 }
609
610 /*
611  * On systems with Open Firmware, collect information about
612  * physical RAM and which pieces are already in use.
613  * At this point, we have (at least) the first 8MB mapped with a BAT.
614  * Our text, data, bss use something over 1MB, starting at 0.
615  * Open Firmware may be using 1MB at the 4MB point.
616  */
617 unsigned long __init
618 pmac_find_end_of_memory(void)
619 {
620         unsigned long a, total;
621         struct mem_pieces phys_mem;
622
623         /*
624          * Find out where physical memory is, and check that it
625          * starts at 0 and is contiguous.  It seems that RAM is
626          * always physically contiguous on Power Macintoshes.
627          *
628          * Supporting discontiguous physical memory isn't hard,
629          * it just makes the virtual <-> physical mapping functions
630          * more complicated (or else you end up wasting space
631          * in mem_map).
632          */
633         memory_node = find_devices("memory");
634         if (memory_node == NULL || !get_mem_prop("reg", &phys_mem)
635             || phys_mem.n_regions == 0)
636                 panic("No RAM??");
637         a = phys_mem.regions[0].address;
638         if (a != 0)
639                 panic("RAM doesn't start at physical address 0");
640         total = phys_mem.regions[0].size;
641
642         if (phys_mem.n_regions > 1) {
643                 printk("RAM starting at 0x%x is not contiguous\n",
644                        phys_mem.regions[1].address);
645                 printk("Using RAM from 0 to 0x%lx\n", total-1);
646         }
647
648         return total;
649 }
650
651 void __init
652 pmac_init(unsigned long r3, unsigned long r4, unsigned long r5,
653           unsigned long r6, unsigned long r7)
654 {
655         /* isa_io_base gets set in pmac_find_bridges */
656         isa_mem_base = PMAC_ISA_MEM_BASE;
657         pci_dram_offset = PMAC_PCI_DRAM_OFFSET;
658         ISA_DMA_THRESHOLD = ~0L;
659         DMA_MODE_READ = 1;
660         DMA_MODE_WRITE = 2;
661
662         ppc_md.setup_arch     = pmac_setup_arch;
663         ppc_md.show_cpuinfo   = pmac_show_cpuinfo;
664         ppc_md.show_percpuinfo = pmac_show_percpuinfo;
665         ppc_md.irq_canonicalize = NULL;
666         ppc_md.init_IRQ       = pmac_pic_init;
667         ppc_md.get_irq        = pmac_get_irq; /* Changed later on ... */
668
669         ppc_md.pcibios_fixup  = pmac_pcibios_fixup;
670         ppc_md.pcibios_enable_device_hook = pmac_pci_enable_device_hook;
671         ppc_md.pcibios_after_init = pmac_pcibios_after_init;
672         ppc_md.phys_mem_access_prot = pci_phys_mem_access_prot;
673
674         ppc_md.restart        = pmac_restart;
675         ppc_md.power_off      = pmac_power_off;
676         ppc_md.halt           = pmac_halt;
677
678         ppc_md.time_init      = pmac_time_init;
679         ppc_md.set_rtc_time   = pmac_set_rtc_time;
680         ppc_md.get_rtc_time   = pmac_get_rtc_time;
681         ppc_md.calibrate_decr = pmac_calibrate_decr;
682
683         ppc_md.find_end_of_memory = pmac_find_end_of_memory;
684
685         ppc_md.feature_call   = pmac_do_feature_call;
686
687 #if defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_IDE_MODULE)
688 #ifdef CONFIG_BLK_DEV_IDE_PMAC
689         ppc_ide_md.ide_init_hwif        = pmac_ide_init_hwif_ports;
690         ppc_ide_md.default_io_base      = pmac_ide_get_base;
691 #endif /* CONFIG_BLK_DEV_IDE_PMAC */
692 #endif /* defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_IDE_MODULE) */
693
694 #ifdef CONFIG_BOOTX_TEXT
695         ppc_md.progress = pmac_progress;
696 #endif /* CONFIG_BOOTX_TEXT */
697
698         if (ppc_md.progress) ppc_md.progress("pmac_init(): exit", 0);
699
700 }
701
702 #ifdef CONFIG_BOOTX_TEXT
703 static void __init
704 pmac_progress(char *s, unsigned short hex)
705 {
706         if (boot_text_mapped) {
707                 btext_drawstring(s);
708                 btext_drawchar('\n');
709         }
710 }
711 #endif /* CONFIG_BOOTX_TEXT */
712
713 static int __init
714 pmac_declare_of_platform_devices(void)
715 {
716         struct device_node *np;
717
718         np = find_devices("uni-n");
719         if (np) {
720                 for (np = np->child; np != NULL; np = np->sibling)
721                         if (strncmp(np->name, "i2c", 3) == 0) {
722                                 of_platform_device_create(np, "uni-n-i2c",
723                                                           NULL);
724                                 break;
725                         }
726         }
727         np = find_devices("u3");
728         if (np) {
729                 for (np = np->child; np != NULL; np = np->sibling)
730                         if (strncmp(np->name, "i2c", 3) == 0) {
731                                 of_platform_device_create(np, "u3-i2c",
732                                                           NULL);
733                                 break;
734                         }
735         }
736
737         np = find_devices("valkyrie");
738         if (np)
739                 of_platform_device_create(np, "valkyrie", NULL);
740         np = find_devices("platinum");
741         if (np)
742                 of_platform_device_create(np, "platinum", NULL);
743
744         return 0;
745 }
746
747 device_initcall(pmac_declare_of_platform_devices);