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Commit | Line | Data |
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14cf11af | 1 | /* |
35499c01 | 2 | * Powermac setup and early boot code plus other random bits. |
14cf11af PM |
3 | * |
4 | * PowerPC version | |
5 | * Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org) | |
6 | * | |
7 | * Adapted for Power Macintosh by Paul Mackerras | |
35499c01 | 8 | * Copyright (C) 1996 Paul Mackerras (paulus@samba.org) |
14cf11af PM |
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> | |
14cf11af PM |
68 | #include <asm/cputable.h> |
69 | #include <asm/btext.h> | |
70 | #include <asm/pmac_feature.h> | |
71 | #include <asm/time.h> | |
72 | #include <asm/of_device.h> | |
73 | #include <asm/mmu_context.h> | |
35499c01 PM |
74 | #include <asm/iommu.h> |
75 | #include <asm/smu.h> | |
76 | #include <asm/pmc.h> | |
77 | #include <asm/mpic.h> | |
fbf1769d | 78 | #include <asm/lmb.h> |
14cf11af | 79 | |
3c3f42d6 | 80 | #include "pmac.h" |
14cf11af PM |
81 | |
82 | #undef SHOW_GATWICK_IRQS | |
83 | ||
14cf11af PM |
84 | unsigned char drive_info; |
85 | ||
86 | int ppc_override_l2cr = 0; | |
87 | int ppc_override_l2cr_value; | |
88 | int has_l2cache = 0; | |
89 | ||
9b6b563c PM |
90 | int pmac_newworld = 1; |
91 | ||
14cf11af PM |
92 | static int current_root_goodness = -1; |
93 | ||
94 | extern int pmac_newworld; | |
35499c01 | 95 | extern struct machdep_calls pmac_md; |
14cf11af PM |
96 | |
97 | #define DEFAULT_ROOT_DEVICE Root_SDA1 /* sda1 - slightly silly choice */ | |
98 | ||
35499c01 PM |
99 | #ifdef CONFIG_PPC64 |
100 | #include <asm/udbg.h> | |
101 | int sccdbg; | |
14cf11af PM |
102 | #endif |
103 | ||
35499c01 PM |
104 | extern void zs_kgdb_hook(int tty_num); |
105 | ||
14cf11af | 106 | sys_ctrler_t sys_ctrler = SYS_CTRLER_UNKNOWN; |
35499c01 PM |
107 | EXPORT_SYMBOL(sys_ctrler); |
108 | ||
109 | #ifdef CONFIG_PMAC_SMU | |
110 | unsigned long smu_cmdbuf_abs; | |
111 | EXPORT_SYMBOL(smu_cmdbuf_abs); | |
112 | #endif | |
14cf11af PM |
113 | |
114 | #ifdef CONFIG_SMP | |
115 | extern struct smp_ops_t psurge_smp_ops; | |
116 | extern struct smp_ops_t core99_smp_ops; | |
117 | #endif /* CONFIG_SMP */ | |
118 | ||
0dd194d0 | 119 | static void pmac_show_cpuinfo(struct seq_file *m) |
14cf11af PM |
120 | { |
121 | struct device_node *np; | |
122 | char *pp; | |
123 | int plen; | |
0dd194d0 PM |
124 | int mbmodel; |
125 | unsigned int mbflags; | |
14cf11af PM |
126 | char* mbname; |
127 | ||
0dd194d0 PM |
128 | mbmodel = pmac_call_feature(PMAC_FTR_GET_MB_INFO, NULL, |
129 | PMAC_MB_INFO_MODEL, 0); | |
130 | mbflags = pmac_call_feature(PMAC_FTR_GET_MB_INFO, NULL, | |
131 | PMAC_MB_INFO_FLAGS, 0); | |
132 | if (pmac_call_feature(PMAC_FTR_GET_MB_INFO, NULL, PMAC_MB_INFO_NAME, | |
133 | (long) &mbname) != 0) | |
14cf11af PM |
134 | mbname = "Unknown"; |
135 | ||
136 | /* find motherboard type */ | |
137 | seq_printf(m, "machine\t\t: "); | |
0dd194d0 | 138 | np = of_find_node_by_path("/"); |
14cf11af PM |
139 | if (np != NULL) { |
140 | pp = (char *) get_property(np, "model", NULL); | |
141 | if (pp != NULL) | |
142 | seq_printf(m, "%s\n", pp); | |
143 | else | |
144 | seq_printf(m, "PowerMac\n"); | |
145 | pp = (char *) get_property(np, "compatible", &plen); | |
146 | if (pp != NULL) { | |
147 | seq_printf(m, "motherboard\t:"); | |
148 | while (plen > 0) { | |
149 | int l = strlen(pp) + 1; | |
150 | seq_printf(m, " %s", pp); | |
151 | plen -= l; | |
152 | pp += l; | |
153 | } | |
154 | seq_printf(m, "\n"); | |
155 | } | |
0dd194d0 | 156 | of_node_put(np); |
14cf11af PM |
157 | } else |
158 | seq_printf(m, "PowerMac\n"); | |
159 | ||
160 | /* print parsed model */ | |
161 | seq_printf(m, "detected as\t: %d (%s)\n", mbmodel, mbname); | |
162 | seq_printf(m, "pmac flags\t: %08x\n", mbflags); | |
163 | ||
164 | /* find l2 cache info */ | |
0dd194d0 PM |
165 | np = of_find_node_by_name(NULL, "l2-cache"); |
166 | if (np == NULL) | |
167 | np = of_find_node_by_type(NULL, "cache"); | |
168 | if (np != NULL) { | |
14cf11af PM |
169 | unsigned int *ic = (unsigned int *) |
170 | get_property(np, "i-cache-size", NULL); | |
171 | unsigned int *dc = (unsigned int *) | |
172 | get_property(np, "d-cache-size", NULL); | |
173 | seq_printf(m, "L2 cache\t:"); | |
174 | has_l2cache = 1; | |
175 | if (get_property(np, "cache-unified", NULL) != 0 && dc) { | |
176 | seq_printf(m, " %dK unified", *dc / 1024); | |
177 | } else { | |
178 | if (ic) | |
179 | seq_printf(m, " %dK instruction", *ic / 1024); | |
180 | if (dc) | |
181 | seq_printf(m, "%s %dK data", | |
182 | (ic? " +": ""), *dc / 1024); | |
183 | } | |
184 | pp = get_property(np, "ram-type", NULL); | |
185 | if (pp) | |
186 | seq_printf(m, " %s", pp); | |
187 | seq_printf(m, "\n"); | |
0dd194d0 | 188 | of_node_put(np); |
14cf11af PM |
189 | } |
190 | ||
191 | /* Indicate newworld/oldworld */ | |
192 | seq_printf(m, "pmac-generation\t: %s\n", | |
193 | pmac_newworld ? "NewWorld" : "OldWorld"); | |
14cf11af PM |
194 | } |
195 | ||
35499c01 PM |
196 | #ifndef CONFIG_ADB_CUDA |
197 | int find_via_cuda(void) | |
198 | { | |
199 | if (!find_devices("via-cuda")) | |
200 | return 0; | |
201 | printk("WARNING ! Your machine is CUDA-based but your kernel\n"); | |
202 | printk(" wasn't compiled with CONFIG_ADB_CUDA option !\n"); | |
203 | return 0; | |
204 | } | |
205 | #endif | |
14cf11af | 206 | |
35499c01 PM |
207 | #ifndef CONFIG_ADB_PMU |
208 | int find_via_pmu(void) | |
14cf11af | 209 | { |
35499c01 PM |
210 | if (!find_devices("via-pmu")) |
211 | return 0; | |
212 | printk("WARNING ! Your machine is PMU-based but your kernel\n"); | |
213 | printk(" wasn't compiled with CONFIG_ADB_PMU option !\n"); | |
a575b807 | 214 | return 0; |
35499c01 PM |
215 | } |
216 | #endif | |
14cf11af | 217 | |
35499c01 PM |
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 | |
14cf11af | 225 | |
35499c01 PM |
226 | #ifdef CONFIG_PPC32 |
227 | static volatile u32 *sysctrl_regs; | |
14cf11af | 228 | |
35499c01 PM |
229 | static void __init ohare_init(void) |
230 | { | |
14cf11af PM |
231 | /* this area has the CPU identification register |
232 | and some registers used by smp boards */ | |
233 | sysctrl_regs = (volatile u32 *) ioremap(0xf8000000, 0x1000); | |
14cf11af | 234 | |
35499c01 PM |
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 | if (find_devices("ohare") != NULL) { | |
241 | if (((sysctrl_regs[2] >> 24) & 0xf) >= 3) { | |
242 | if (sysctrl_regs[4] & 0x10) | |
243 | sysctrl_regs[4] |= 0x04000020; | |
244 | else | |
245 | sysctrl_regs[4] |= 0x04000000; | |
246 | if(has_l2cache) | |
247 | printk(KERN_INFO "Level 2 cache enabled\n"); | |
248 | } | |
249 | } | |
250 | } | |
14cf11af | 251 | |
35499c01 PM |
252 | static void __init l2cr_init(void) |
253 | { | |
14cf11af PM |
254 | /* Checks "l2cr-value" property in the registry */ |
255 | if (cpu_has_feature(CPU_FTR_L2CR)) { | |
256 | struct device_node *np = find_devices("cpus"); | |
257 | if (np == 0) | |
258 | np = find_type_devices("cpu"); | |
259 | if (np != 0) { | |
260 | unsigned int *l2cr = (unsigned int *) | |
261 | get_property(np, "l2cr-value", NULL); | |
262 | if (l2cr != 0) { | |
263 | ppc_override_l2cr = 1; | |
264 | ppc_override_l2cr_value = *l2cr; | |
265 | _set_L2CR(0); | |
266 | _set_L2CR(ppc_override_l2cr_value); | |
267 | } | |
268 | } | |
269 | } | |
270 | ||
271 | if (ppc_override_l2cr) | |
35499c01 PM |
272 | printk(KERN_INFO "L2CR overridden (0x%x), " |
273 | "backside cache is %s\n", | |
274 | ppc_override_l2cr_value, | |
275 | (ppc_override_l2cr_value & 0x80000000) | |
14cf11af | 276 | ? "enabled" : "disabled"); |
35499c01 PM |
277 | } |
278 | #endif | |
279 | ||
280 | void __init pmac_setup_arch(void) | |
281 | { | |
a575b807 | 282 | struct device_node *cpu, *ic; |
35499c01 PM |
283 | int *fp; |
284 | unsigned long pvr; | |
285 | ||
286 | pvr = PVR_VER(mfspr(SPRN_PVR)); | |
287 | ||
288 | /* Set loops_per_jiffy to a half-way reasonable value, | |
289 | for use until calibrate_delay gets called. */ | |
290 | loops_per_jiffy = 50000000 / HZ; | |
291 | cpu = of_find_node_by_type(NULL, "cpu"); | |
292 | if (cpu != NULL) { | |
293 | fp = (int *) get_property(cpu, "clock-frequency", NULL); | |
294 | if (fp != NULL) { | |
295 | if (pvr >= 0x30 && pvr < 0x80) | |
296 | /* PPC970 etc. */ | |
297 | loops_per_jiffy = *fp / (3 * HZ); | |
298 | else if (pvr == 4 || pvr >= 8) | |
299 | /* 604, G3, G4 etc. */ | |
300 | loops_per_jiffy = *fp / HZ; | |
301 | else | |
302 | /* 601, 603, etc. */ | |
303 | loops_per_jiffy = *fp / (2 * HZ); | |
304 | } | |
305 | of_node_put(cpu); | |
306 | } | |
307 | ||
a575b807 | 308 | /* See if newworld or oldworld */ |
bfab1019 PM |
309 | for (ic = NULL; (ic = of_find_all_nodes(ic)) != NULL; ) |
310 | if (get_property(ic, "interrupt-controller", NULL)) | |
311 | break; | |
a575b807 PM |
312 | pmac_newworld = (ic != NULL); |
313 | if (ic) | |
314 | of_node_put(ic); | |
315 | ||
35499c01 PM |
316 | /* Lookup PCI hosts */ |
317 | pmac_pci_init(); | |
318 | ||
319 | #ifdef CONFIG_PPC32 | |
320 | ohare_init(); | |
321 | l2cr_init(); | |
322 | #endif /* CONFIG_PPC32 */ | |
323 | ||
324 | #ifdef CONFIG_PPC64 | |
325 | /* Probe motherboard chipset */ | |
326 | /* this is done earlier in setup_arch for 32-bit */ | |
327 | pmac_feature_init(); | |
328 | ||
329 | /* We can NAP */ | |
330 | powersave_nap = 1; | |
331 | printk(KERN_INFO "Using native/NAP idle loop\n"); | |
332 | #endif | |
14cf11af PM |
333 | |
334 | #ifdef CONFIG_KGDB | |
335 | zs_kgdb_hook(0); | |
336 | #endif | |
337 | ||
14cf11af | 338 | find_via_cuda(); |
14cf11af | 339 | find_via_pmu(); |
35499c01 PM |
340 | smu_init(); |
341 | ||
91c33d28 | 342 | #if defined(CONFIG_NVRAM) || defined(CONFIG_PPC64) |
14cf11af PM |
343 | pmac_nvram_init(); |
344 | #endif | |
35499c01 PM |
345 | |
346 | #ifdef CONFIG_PPC32 | |
14cf11af PM |
347 | #ifdef CONFIG_BLK_DEV_INITRD |
348 | if (initrd_start) | |
349 | ROOT_DEV = Root_RAM0; | |
350 | else | |
351 | #endif | |
352 | ROOT_DEV = DEFAULT_ROOT_DEVICE; | |
35499c01 | 353 | #endif |
14cf11af PM |
354 | |
355 | #ifdef CONFIG_SMP | |
356 | /* Check for Core99 */ | |
357 | if (find_devices("uni-n") || find_devices("u3")) | |
7ed476d1 | 358 | smp_ops = &core99_smp_ops; |
35499c01 | 359 | #ifdef CONFIG_PPC32 |
14cf11af | 360 | else |
7ed476d1 | 361 | smp_ops = &psurge_smp_ops; |
35499c01 | 362 | #endif |
14cf11af | 363 | #endif /* CONFIG_SMP */ |
14cf11af PM |
364 | } |
365 | ||
9b6b563c PM |
366 | char *bootpath; |
367 | char *bootdevice; | |
14cf11af PM |
368 | void *boot_host; |
369 | int boot_target; | |
370 | int boot_part; | |
371 | extern dev_t boot_dev; | |
372 | ||
373 | #ifdef CONFIG_SCSI | |
35499c01 | 374 | void __init note_scsi_host(struct device_node *node, void *host) |
14cf11af PM |
375 | { |
376 | int l; | |
377 | char *p; | |
378 | ||
379 | l = strlen(node->full_name); | |
380 | if (bootpath != NULL && bootdevice != NULL | |
381 | && strncmp(node->full_name, bootdevice, l) == 0 | |
382 | && (bootdevice[l] == '/' || bootdevice[l] == 0)) { | |
383 | boot_host = host; | |
384 | /* | |
385 | * There's a bug in OF 1.0.5. (Why am I not surprised.) | |
386 | * If you pass a path like scsi/sd@1:0 to canon, it returns | |
387 | * something like /bandit@F2000000/gc@10/53c94@10000/sd@0,0 | |
388 | * That is, the scsi target number doesn't get preserved. | |
389 | * So we pick the target number out of bootpath and use that. | |
390 | */ | |
391 | p = strstr(bootpath, "/sd@"); | |
392 | if (p != NULL) { | |
393 | p += 4; | |
394 | boot_target = simple_strtoul(p, NULL, 10); | |
395 | p = strchr(p, ':'); | |
396 | if (p != NULL) | |
397 | boot_part = simple_strtoul(p + 1, NULL, 10); | |
398 | } | |
399 | } | |
400 | } | |
9b6b563c | 401 | EXPORT_SYMBOL(note_scsi_host); |
14cf11af PM |
402 | #endif |
403 | ||
404 | #if defined(CONFIG_BLK_DEV_IDE) && defined(CONFIG_BLK_DEV_IDE_PMAC) | |
35499c01 | 405 | static dev_t __init find_ide_boot(void) |
14cf11af PM |
406 | { |
407 | char *p; | |
408 | int n; | |
409 | dev_t __init pmac_find_ide_boot(char *bootdevice, int n); | |
410 | ||
411 | if (bootdevice == NULL) | |
412 | return 0; | |
413 | p = strrchr(bootdevice, '/'); | |
414 | if (p == NULL) | |
415 | return 0; | |
416 | n = p - bootdevice; | |
417 | ||
418 | return pmac_find_ide_boot(bootdevice, n); | |
419 | } | |
420 | #endif /* CONFIG_BLK_DEV_IDE && CONFIG_BLK_DEV_IDE_PMAC */ | |
421 | ||
35499c01 | 422 | static void __init find_boot_device(void) |
14cf11af PM |
423 | { |
424 | #if defined(CONFIG_BLK_DEV_IDE) && defined(CONFIG_BLK_DEV_IDE_PMAC) | |
425 | boot_dev = find_ide_boot(); | |
426 | #endif | |
427 | } | |
428 | ||
14cf11af PM |
429 | /* TODO: Merge the suspend-to-ram with the common code !!! |
430 | * currently, this is a stub implementation for suspend-to-disk | |
431 | * only | |
432 | */ | |
433 | ||
434 | #ifdef CONFIG_SOFTWARE_SUSPEND | |
435 | ||
436 | static int pmac_pm_prepare(suspend_state_t state) | |
437 | { | |
438 | printk(KERN_DEBUG "%s(%d)\n", __FUNCTION__, state); | |
439 | ||
440 | return 0; | |
441 | } | |
442 | ||
443 | static int pmac_pm_enter(suspend_state_t state) | |
444 | { | |
445 | printk(KERN_DEBUG "%s(%d)\n", __FUNCTION__, state); | |
446 | ||
447 | /* Giveup the lazy FPU & vec so we don't have to back them | |
448 | * up from the low level code | |
449 | */ | |
450 | enable_kernel_fp(); | |
451 | ||
452 | #ifdef CONFIG_ALTIVEC | |
400d2212 | 453 | if (cur_cpu_spec->cpu_features & CPU_FTR_ALTIVEC) |
14cf11af PM |
454 | enable_kernel_altivec(); |
455 | #endif /* CONFIG_ALTIVEC */ | |
456 | ||
457 | return 0; | |
458 | } | |
459 | ||
460 | static int pmac_pm_finish(suspend_state_t state) | |
461 | { | |
462 | printk(KERN_DEBUG "%s(%d)\n", __FUNCTION__, state); | |
463 | ||
464 | /* Restore userland MMU context */ | |
465 | set_context(current->active_mm->context, current->active_mm->pgd); | |
466 | ||
467 | return 0; | |
468 | } | |
469 | ||
470 | static struct pm_ops pmac_pm_ops = { | |
471 | .pm_disk_mode = PM_DISK_SHUTDOWN, | |
472 | .prepare = pmac_pm_prepare, | |
473 | .enter = pmac_pm_enter, | |
474 | .finish = pmac_pm_finish, | |
475 | }; | |
476 | ||
477 | #endif /* CONFIG_SOFTWARE_SUSPEND */ | |
478 | ||
35499c01 PM |
479 | static int initializing = 1; |
480 | ||
14cf11af PM |
481 | static int pmac_late_init(void) |
482 | { | |
483 | initializing = 0; | |
484 | #ifdef CONFIG_SOFTWARE_SUSPEND | |
485 | pm_set_ops(&pmac_pm_ops); | |
486 | #endif /* CONFIG_SOFTWARE_SUSPEND */ | |
487 | return 0; | |
488 | } | |
489 | ||
490 | late_initcall(pmac_late_init); | |
491 | ||
492 | /* can't be __init - can be called whenever a disk is first accessed */ | |
35499c01 | 493 | void note_bootable_part(dev_t dev, int part, int goodness) |
14cf11af PM |
494 | { |
495 | static int found_boot = 0; | |
496 | char *p; | |
497 | ||
498 | if (!initializing) | |
499 | return; | |
500 | if ((goodness <= current_root_goodness) && | |
501 | ROOT_DEV != DEFAULT_ROOT_DEVICE) | |
502 | return; | |
503 | p = strstr(saved_command_line, "root="); | |
504 | if (p != NULL && (p == saved_command_line || p[-1] == ' ')) | |
505 | return; | |
506 | ||
507 | if (!found_boot) { | |
508 | find_boot_device(); | |
509 | found_boot = 1; | |
510 | } | |
511 | if (!boot_dev || dev == boot_dev) { | |
512 | ROOT_DEV = dev + part; | |
513 | boot_dev = 0; | |
514 | current_root_goodness = goodness; | |
515 | } | |
516 | } | |
517 | ||
14cf11af | 518 | #ifdef CONFIG_ADB_CUDA |
35499c01 PM |
519 | static void cuda_restart(void) |
520 | { | |
14cf11af | 521 | struct adb_request req; |
14cf11af | 522 | |
35499c01 PM |
523 | cuda_request(&req, NULL, 2, CUDA_PACKET, CUDA_RESET_SYSTEM); |
524 | for (;;) | |
525 | cuda_poll(); | |
526 | } | |
527 | ||
528 | static void cuda_shutdown(void) | |
529 | { | |
530 | struct adb_request req; | |
531 | ||
532 | cuda_request(&req, NULL, 2, CUDA_PACKET, CUDA_POWERDOWN); | |
533 | for (;;) | |
534 | cuda_poll(); | |
535 | } | |
536 | ||
537 | #else | |
538 | #define cuda_restart() | |
539 | #define cuda_shutdown() | |
540 | #endif | |
541 | ||
542 | #ifndef CONFIG_ADB_PMU | |
543 | #define pmu_restart() | |
544 | #define pmu_shutdown() | |
545 | #endif | |
546 | ||
547 | #ifndef CONFIG_PMAC_SMU | |
548 | #define smu_restart() | |
549 | #define smu_shutdown() | |
550 | #endif | |
551 | ||
552 | static void pmac_restart(char *cmd) | |
553 | { | |
14cf11af | 554 | switch (sys_ctrler) { |
14cf11af | 555 | case SYS_CTRLER_CUDA: |
35499c01 | 556 | cuda_restart(); |
14cf11af | 557 | break; |
14cf11af PM |
558 | case SYS_CTRLER_PMU: |
559 | pmu_restart(); | |
560 | break; | |
35499c01 PM |
561 | case SYS_CTRLER_SMU: |
562 | smu_restart(); | |
563 | break; | |
14cf11af PM |
564 | default: ; |
565 | } | |
566 | } | |
567 | ||
35499c01 | 568 | static void pmac_power_off(void) |
14cf11af | 569 | { |
14cf11af | 570 | switch (sys_ctrler) { |
14cf11af | 571 | case SYS_CTRLER_CUDA: |
35499c01 | 572 | cuda_shutdown(); |
14cf11af | 573 | break; |
14cf11af PM |
574 | case SYS_CTRLER_PMU: |
575 | pmu_shutdown(); | |
576 | break; | |
35499c01 PM |
577 | case SYS_CTRLER_SMU: |
578 | smu_shutdown(); | |
579 | break; | |
14cf11af PM |
580 | default: ; |
581 | } | |
582 | } | |
583 | ||
584 | static void | |
585 | pmac_halt(void) | |
586 | { | |
587 | pmac_power_off(); | |
588 | } | |
589 | ||
35499c01 | 590 | #ifdef CONFIG_PPC32 |
9b6b563c | 591 | void __init pmac_init(void) |
14cf11af | 592 | { |
35499c01 | 593 | /* isa_io_base gets set in pmac_pci_init */ |
14cf11af PM |
594 | isa_mem_base = PMAC_ISA_MEM_BASE; |
595 | pci_dram_offset = PMAC_PCI_DRAM_OFFSET; | |
596 | ISA_DMA_THRESHOLD = ~0L; | |
597 | DMA_MODE_READ = 1; | |
598 | DMA_MODE_WRITE = 2; | |
599 | ||
35499c01 | 600 | ppc_md = pmac_md; |
14cf11af PM |
601 | |
602 | #if defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_IDE_MODULE) | |
603 | #ifdef CONFIG_BLK_DEV_IDE_PMAC | |
604 | ppc_ide_md.ide_init_hwif = pmac_ide_init_hwif_ports; | |
605 | ppc_ide_md.default_io_base = pmac_ide_get_base; | |
606 | #endif /* CONFIG_BLK_DEV_IDE_PMAC */ | |
607 | #endif /* defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_IDE_MODULE) */ | |
608 | ||
14cf11af PM |
609 | if (ppc_md.progress) ppc_md.progress("pmac_init(): exit", 0); |
610 | ||
611 | } | |
35499c01 | 612 | #endif |
14cf11af | 613 | |
35499c01 PM |
614 | /* |
615 | * Early initialization. | |
616 | */ | |
617 | static void __init pmac_init_early(void) | |
618 | { | |
619 | #ifdef CONFIG_PPC64 | |
620 | /* Initialize hash table, from now on, we can take hash faults | |
621 | * and call ioremap | |
622 | */ | |
623 | hpte_init_native(); | |
624 | ||
625 | /* Init SCC */ | |
626 | if (strstr(cmd_line, "sccdbg")) { | |
627 | sccdbg = 1; | |
628 | udbg_init_scc(NULL); | |
629 | } | |
630 | ||
631 | /* Setup interrupt mapping options */ | |
632 | ppc64_interrupt_controller = IC_OPEN_PIC; | |
633 | ||
634 | iommu_init_early_u3(); | |
635 | #endif | |
636 | } | |
637 | ||
638 | static void __init pmac_progress(char *s, unsigned short hex) | |
14cf11af | 639 | { |
35499c01 PM |
640 | #ifdef CONFIG_PPC64 |
641 | if (sccdbg) { | |
642 | udbg_puts(s); | |
643 | udbg_puts("\n"); | |
644 | return; | |
645 | } | |
646 | #endif | |
647 | #ifdef CONFIG_BOOTX_TEXT | |
14cf11af PM |
648 | if (boot_text_mapped) { |
649 | btext_drawstring(s); | |
650 | btext_drawchar('\n'); | |
651 | } | |
14cf11af | 652 | #endif /* CONFIG_BOOTX_TEXT */ |
35499c01 | 653 | } |
14cf11af | 654 | |
35499c01 PM |
655 | /* |
656 | * pmac has no legacy IO, anything calling this function has to | |
657 | * fail or bad things will happen | |
658 | */ | |
659 | static int pmac_check_legacy_ioport(unsigned int baseport) | |
660 | { | |
661 | return -ENODEV; | |
662 | } | |
663 | ||
664 | static int __init pmac_declare_of_platform_devices(void) | |
14cf11af | 665 | { |
98599013 | 666 | struct device_node *np, *npp; |
14cf11af PM |
667 | |
668 | np = find_devices("uni-n"); | |
669 | if (np) { | |
670 | for (np = np->child; np != NULL; np = np->sibling) | |
671 | if (strncmp(np->name, "i2c", 3) == 0) { | |
672 | of_platform_device_create(np, "uni-n-i2c", | |
673 | NULL); | |
674 | break; | |
675 | } | |
676 | } | |
35499c01 PM |
677 | np = find_devices("valkyrie"); |
678 | if (np) | |
679 | of_platform_device_create(np, "valkyrie", NULL); | |
680 | np = find_devices("platinum"); | |
681 | if (np) | |
682 | of_platform_device_create(np, "platinum", NULL); | |
683 | ||
98599013 PM |
684 | npp = of_find_node_by_name(NULL, "u3"); |
685 | if (npp) { | |
686 | for (np = NULL; (np = of_get_next_child(npp, np)) != NULL;) { | |
14cf11af | 687 | if (strncmp(np->name, "i2c", 3) == 0) { |
98599013 PM |
688 | of_platform_device_create(np, "u3-i2c", NULL); |
689 | of_node_put(np); | |
14cf11af PM |
690 | break; |
691 | } | |
98599013 PM |
692 | } |
693 | of_node_put(npp); | |
14cf11af | 694 | } |
35499c01 PM |
695 | np = of_find_node_by_type(NULL, "smu"); |
696 | if (np) { | |
697 | of_platform_device_create(np, "smu", NULL); | |
698 | of_node_put(np); | |
699 | } | |
14cf11af PM |
700 | |
701 | return 0; | |
702 | } | |
703 | ||
704 | device_initcall(pmac_declare_of_platform_devices); | |
35499c01 PM |
705 | |
706 | /* | |
707 | * Called very early, MMU is off, device-tree isn't unflattened | |
708 | */ | |
709 | static int __init pmac_probe(int platform) | |
710 | { | |
711 | #ifdef CONFIG_PPC64 | |
712 | if (platform != PLATFORM_POWERMAC) | |
713 | return 0; | |
714 | ||
715 | /* | |
716 | * On U3, the DART (iommu) must be allocated now since it | |
717 | * has an impact on htab_initialize (due to the large page it | |
718 | * occupies having to be broken up so the DART itself is not | |
719 | * part of the cacheable linar mapping | |
720 | */ | |
721 | alloc_u3_dart_table(); | |
722 | #endif | |
723 | ||
724 | #ifdef CONFIG_PMAC_SMU | |
725 | /* | |
726 | * SMU based G5s need some memory below 2Gb, at least the current | |
727 | * driver needs that. We have to allocate it now. We allocate 4k | |
728 | * (1 small page) for now. | |
729 | */ | |
730 | smu_cmdbuf_abs = lmb_alloc_base(4096, 4096, 0x80000000UL); | |
731 | #endif /* CONFIG_PMAC_SMU */ | |
732 | ||
733 | return 1; | |
734 | } | |
735 | ||
736 | #ifdef CONFIG_PPC64 | |
737 | static int pmac_probe_mode(struct pci_bus *bus) | |
738 | { | |
739 | struct device_node *node = bus->sysdata; | |
740 | ||
741 | /* We need to use normal PCI probing for the AGP bus, | |
742 | since the device for the AGP bridge isn't in the tree. */ | |
743 | if (bus->self == NULL && device_is_compatible(node, "u3-agp")) | |
744 | return PCI_PROBE_NORMAL; | |
745 | ||
746 | return PCI_PROBE_DEVTREE; | |
747 | } | |
748 | #endif | |
749 | ||
750 | struct machdep_calls __initdata pmac_md = { | |
751 | #if defined(CONFIG_HOTPLUG_CPU) && defined(CONFIG_PPC64) | |
752 | .cpu_die = generic_mach_cpu_die, | |
753 | #endif | |
754 | .probe = pmac_probe, | |
755 | .setup_arch = pmac_setup_arch, | |
756 | .init_early = pmac_init_early, | |
757 | .show_cpuinfo = pmac_show_cpuinfo, | |
35499c01 PM |
758 | .init_IRQ = pmac_pic_init, |
759 | .get_irq = mpic_get_irq, /* changed later */ | |
760 | .pcibios_fixup = pmac_pcibios_fixup, | |
761 | .restart = pmac_restart, | |
762 | .power_off = pmac_power_off, | |
763 | .halt = pmac_halt, | |
764 | .time_init = pmac_time_init, | |
765 | .get_boot_time = pmac_get_boot_time, | |
766 | .set_rtc_time = pmac_set_rtc_time, | |
767 | .get_rtc_time = pmac_get_rtc_time, | |
768 | .calibrate_decr = pmac_calibrate_decr, | |
769 | .feature_call = pmac_do_feature_call, | |
770 | .check_legacy_ioport = pmac_check_legacy_ioport, | |
771 | .progress = pmac_progress, | |
772 | #ifdef CONFIG_PPC64 | |
773 | .pci_probe_mode = pmac_probe_mode, | |
774 | .idle_loop = native_idle, | |
775 | .enable_pmcs = power4_enable_pmcs, | |
776 | #endif | |
777 | #ifdef CONFIG_PPC32 | |
778 | .pcibios_enable_device_hook = pmac_pci_enable_device_hook, | |
779 | .pcibios_after_init = pmac_pcibios_after_init, | |
780 | .phys_mem_access_prot = pci_phys_mem_access_prot, | |
781 | #endif | |
782 | }; |