Commit | Line | Data |
---|---|---|
372b07bb DM |
1 | /* |
2 | * Procedures for creating, accessing and interpreting the device tree. | |
3 | * | |
4 | * Paul Mackerras August 1996. | |
5 | * Copyright (C) 1996-2005 Paul Mackerras. | |
6 | * | |
7 | * Adapted for 64bit PowerPC by Dave Engebretsen and Peter Bergner. | |
8 | * {engebret|bergner}@us.ibm.com | |
9 | * | |
10 | * Adapted for sparc64 by David S. Miller davem@davemloft.net | |
11 | * | |
12 | * This program is free software; you can redistribute it and/or | |
13 | * modify it under the terms of the GNU General Public License | |
14 | * as published by the Free Software Foundation; either version | |
15 | * 2 of the License, or (at your option) any later version. | |
16 | */ | |
17 | ||
18 | #include <linux/kernel.h> | |
19 | #include <linux/types.h> | |
20 | #include <linux/string.h> | |
21 | #include <linux/mm.h> | |
de8d28b1 | 22 | #include <linux/module.h> |
ad072004 | 23 | #include <linux/lmb.h> |
764f2579 | 24 | #include <linux/of_device.h> |
372b07bb DM |
25 | |
26 | #include <asm/prom.h> | |
27 | #include <asm/oplib.h> | |
2b1e5978 DM |
28 | #include <asm/irq.h> |
29 | #include <asm/asi.h> | |
30 | #include <asm/upa.h> | |
5cbc3073 | 31 | #include <asm/smp.h> |
372b07bb | 32 | |
657f201d | 33 | #include "prom.h" |
fb7cd9d9 | 34 | |
ad072004 | 35 | static unsigned int prom_early_allocated __initdata; |
372b07bb | 36 | |
efeac2f8 | 37 | void * __init prom_early_alloc(unsigned long size) |
372b07bb | 38 | { |
ad072004 | 39 | unsigned long paddr = lmb_alloc(size, SMP_CACHE_BYTES); |
372b07bb DM |
40 | void *ret; |
41 | ||
ad072004 DM |
42 | if (!paddr) { |
43 | prom_printf("prom_early_alloc(%lu) failed\n"); | |
44 | prom_halt(); | |
45 | } | |
372b07bb | 46 | |
ad072004 DM |
47 | ret = __va(paddr); |
48 | memset(ret, 0, size); | |
372b07bb DM |
49 | prom_early_allocated += size; |
50 | ||
51 | return ret; | |
52 | } | |
53 | ||
54 | static int is_root_node(const struct device_node *dp) | |
55 | { | |
56 | if (!dp) | |
57 | return 0; | |
58 | ||
59 | return (dp->parent == NULL); | |
60 | } | |
61 | ||
62 | /* The following routines deal with the black magic of fully naming a | |
63 | * node. | |
64 | * | |
65 | * Certain well known named nodes are just the simple name string. | |
66 | * | |
67 | * Actual devices have an address specifier appended to the base name | |
68 | * string, like this "foo@addr". The "addr" can be in any number of | |
69 | * formats, and the platform plus the type of the node determine the | |
70 | * format and how it is constructed. | |
71 | * | |
72 | * For children of the ROOT node, the naming convention is fixed and | |
73 | * determined by whether this is a sun4u or sun4v system. | |
74 | * | |
75 | * For children of other nodes, it is bus type specific. So | |
76 | * we walk up the tree until we discover a "device_type" property | |
77 | * we recognize and we go from there. | |
78 | * | |
79 | * As an example, the boot device on my workstation has a full path: | |
80 | * | |
81 | * /pci@1e,600000/ide@d/disk@0,0:c | |
82 | */ | |
83 | static void __init sun4v_path_component(struct device_node *dp, char *tmp_buf) | |
84 | { | |
85 | struct linux_prom64_registers *regs; | |
86 | struct property *rprop; | |
87 | u32 high_bits, low_bits, type; | |
88 | ||
89 | rprop = of_find_property(dp, "reg", NULL); | |
90 | if (!rprop) | |
91 | return; | |
92 | ||
93 | regs = rprop->value; | |
94 | if (!is_root_node(dp->parent)) { | |
95 | sprintf(tmp_buf, "%s@%x,%x", | |
96 | dp->name, | |
97 | (unsigned int) (regs->phys_addr >> 32UL), | |
98 | (unsigned int) (regs->phys_addr & 0xffffffffUL)); | |
99 | return; | |
100 | } | |
101 | ||
102 | type = regs->phys_addr >> 60UL; | |
103 | high_bits = (regs->phys_addr >> 32UL) & 0x0fffffffUL; | |
104 | low_bits = (regs->phys_addr & 0xffffffffUL); | |
105 | ||
106 | if (type == 0 || type == 8) { | |
107 | const char *prefix = (type == 0) ? "m" : "i"; | |
108 | ||
109 | if (low_bits) | |
110 | sprintf(tmp_buf, "%s@%s%x,%x", | |
111 | dp->name, prefix, | |
112 | high_bits, low_bits); | |
113 | else | |
114 | sprintf(tmp_buf, "%s@%s%x", | |
115 | dp->name, | |
116 | prefix, | |
117 | high_bits); | |
118 | } else if (type == 12) { | |
119 | sprintf(tmp_buf, "%s@%x", | |
120 | dp->name, high_bits); | |
121 | } | |
122 | } | |
123 | ||
124 | static void __init sun4u_path_component(struct device_node *dp, char *tmp_buf) | |
125 | { | |
126 | struct linux_prom64_registers *regs; | |
127 | struct property *prop; | |
128 | ||
129 | prop = of_find_property(dp, "reg", NULL); | |
130 | if (!prop) | |
131 | return; | |
132 | ||
133 | regs = prop->value; | |
134 | if (!is_root_node(dp->parent)) { | |
135 | sprintf(tmp_buf, "%s@%x,%x", | |
136 | dp->name, | |
137 | (unsigned int) (regs->phys_addr >> 32UL), | |
138 | (unsigned int) (regs->phys_addr & 0xffffffffUL)); | |
139 | return; | |
140 | } | |
141 | ||
142 | prop = of_find_property(dp, "upa-portid", NULL); | |
143 | if (!prop) | |
144 | prop = of_find_property(dp, "portid", NULL); | |
145 | if (prop) { | |
146 | unsigned long mask = 0xffffffffUL; | |
147 | ||
148 | if (tlb_type >= cheetah) | |
149 | mask = 0x7fffff; | |
150 | ||
151 | sprintf(tmp_buf, "%s@%x,%x", | |
152 | dp->name, | |
153 | *(u32 *)prop->value, | |
154 | (unsigned int) (regs->phys_addr & mask)); | |
155 | } | |
156 | } | |
157 | ||
158 | /* "name@slot,offset" */ | |
159 | static void __init sbus_path_component(struct device_node *dp, char *tmp_buf) | |
160 | { | |
161 | struct linux_prom_registers *regs; | |
162 | struct property *prop; | |
163 | ||
164 | prop = of_find_property(dp, "reg", NULL); | |
165 | if (!prop) | |
166 | return; | |
167 | ||
168 | regs = prop->value; | |
169 | sprintf(tmp_buf, "%s@%x,%x", | |
170 | dp->name, | |
171 | regs->which_io, | |
172 | regs->phys_addr); | |
173 | } | |
174 | ||
175 | /* "name@devnum[,func]" */ | |
176 | static void __init pci_path_component(struct device_node *dp, char *tmp_buf) | |
177 | { | |
178 | struct linux_prom_pci_registers *regs; | |
179 | struct property *prop; | |
180 | unsigned int devfn; | |
181 | ||
182 | prop = of_find_property(dp, "reg", NULL); | |
183 | if (!prop) | |
184 | return; | |
185 | ||
186 | regs = prop->value; | |
187 | devfn = (regs->phys_hi >> 8) & 0xff; | |
188 | if (devfn & 0x07) { | |
189 | sprintf(tmp_buf, "%s@%x,%x", | |
190 | dp->name, | |
191 | devfn >> 3, | |
192 | devfn & 0x07); | |
193 | } else { | |
194 | sprintf(tmp_buf, "%s@%x", | |
195 | dp->name, | |
196 | devfn >> 3); | |
197 | } | |
198 | } | |
199 | ||
200 | /* "name@UPA_PORTID,offset" */ | |
201 | static void __init upa_path_component(struct device_node *dp, char *tmp_buf) | |
202 | { | |
203 | struct linux_prom64_registers *regs; | |
204 | struct property *prop; | |
205 | ||
206 | prop = of_find_property(dp, "reg", NULL); | |
207 | if (!prop) | |
208 | return; | |
209 | ||
210 | regs = prop->value; | |
211 | ||
212 | prop = of_find_property(dp, "upa-portid", NULL); | |
213 | if (!prop) | |
214 | return; | |
215 | ||
216 | sprintf(tmp_buf, "%s@%x,%x", | |
217 | dp->name, | |
218 | *(u32 *) prop->value, | |
219 | (unsigned int) (regs->phys_addr & 0xffffffffUL)); | |
220 | } | |
221 | ||
222 | /* "name@reg" */ | |
223 | static void __init vdev_path_component(struct device_node *dp, char *tmp_buf) | |
224 | { | |
225 | struct property *prop; | |
226 | u32 *regs; | |
227 | ||
228 | prop = of_find_property(dp, "reg", NULL); | |
229 | if (!prop) | |
230 | return; | |
231 | ||
232 | regs = prop->value; | |
233 | ||
234 | sprintf(tmp_buf, "%s@%x", dp->name, *regs); | |
235 | } | |
236 | ||
237 | /* "name@addrhi,addrlo" */ | |
238 | static void __init ebus_path_component(struct device_node *dp, char *tmp_buf) | |
239 | { | |
240 | struct linux_prom64_registers *regs; | |
241 | struct property *prop; | |
242 | ||
243 | prop = of_find_property(dp, "reg", NULL); | |
244 | if (!prop) | |
245 | return; | |
246 | ||
247 | regs = prop->value; | |
248 | ||
249 | sprintf(tmp_buf, "%s@%x,%x", | |
250 | dp->name, | |
251 | (unsigned int) (regs->phys_addr >> 32UL), | |
252 | (unsigned int) (regs->phys_addr & 0xffffffffUL)); | |
253 | } | |
254 | ||
255 | /* "name@bus,addr" */ | |
256 | static void __init i2c_path_component(struct device_node *dp, char *tmp_buf) | |
257 | { | |
258 | struct property *prop; | |
259 | u32 *regs; | |
260 | ||
261 | prop = of_find_property(dp, "reg", NULL); | |
262 | if (!prop) | |
263 | return; | |
264 | ||
265 | regs = prop->value; | |
266 | ||
267 | /* This actually isn't right... should look at the #address-cells | |
268 | * property of the i2c bus node etc. etc. | |
269 | */ | |
270 | sprintf(tmp_buf, "%s@%x,%x", | |
271 | dp->name, regs[0], regs[1]); | |
272 | } | |
273 | ||
274 | /* "name@reg0[,reg1]" */ | |
275 | static void __init usb_path_component(struct device_node *dp, char *tmp_buf) | |
276 | { | |
277 | struct property *prop; | |
278 | u32 *regs; | |
279 | ||
280 | prop = of_find_property(dp, "reg", NULL); | |
281 | if (!prop) | |
282 | return; | |
283 | ||
284 | regs = prop->value; | |
285 | ||
286 | if (prop->length == sizeof(u32) || regs[1] == 1) { | |
287 | sprintf(tmp_buf, "%s@%x", | |
288 | dp->name, regs[0]); | |
289 | } else { | |
290 | sprintf(tmp_buf, "%s@%x,%x", | |
291 | dp->name, regs[0], regs[1]); | |
292 | } | |
293 | } | |
294 | ||
295 | /* "name@reg0reg1[,reg2reg3]" */ | |
296 | static void __init ieee1394_path_component(struct device_node *dp, char *tmp_buf) | |
297 | { | |
298 | struct property *prop; | |
299 | u32 *regs; | |
300 | ||
301 | prop = of_find_property(dp, "reg", NULL); | |
302 | if (!prop) | |
303 | return; | |
304 | ||
305 | regs = prop->value; | |
306 | ||
307 | if (regs[2] || regs[3]) { | |
308 | sprintf(tmp_buf, "%s@%08x%08x,%04x%08x", | |
309 | dp->name, regs[0], regs[1], regs[2], regs[3]); | |
310 | } else { | |
311 | sprintf(tmp_buf, "%s@%08x%08x", | |
312 | dp->name, regs[0], regs[1]); | |
313 | } | |
314 | } | |
315 | ||
316 | static void __init __build_path_component(struct device_node *dp, char *tmp_buf) | |
317 | { | |
318 | struct device_node *parent = dp->parent; | |
319 | ||
320 | if (parent != NULL) { | |
321 | if (!strcmp(parent->type, "pci") || | |
c91e2eca DM |
322 | !strcmp(parent->type, "pciex")) { |
323 | pci_path_component(dp, tmp_buf); | |
324 | return; | |
325 | } | |
326 | if (!strcmp(parent->type, "sbus")) { | |
327 | sbus_path_component(dp, tmp_buf); | |
328 | return; | |
329 | } | |
330 | if (!strcmp(parent->type, "upa")) { | |
331 | upa_path_component(dp, tmp_buf); | |
332 | return; | |
333 | } | |
334 | if (!strcmp(parent->type, "ebus")) { | |
335 | ebus_path_component(dp, tmp_buf); | |
336 | return; | |
337 | } | |
372b07bb | 338 | if (!strcmp(parent->name, "usb") || |
c91e2eca DM |
339 | !strcmp(parent->name, "hub")) { |
340 | usb_path_component(dp, tmp_buf); | |
341 | return; | |
342 | } | |
343 | if (!strcmp(parent->type, "i2c")) { | |
344 | i2c_path_component(dp, tmp_buf); | |
345 | return; | |
346 | } | |
347 | if (!strcmp(parent->type, "firewire")) { | |
348 | ieee1394_path_component(dp, tmp_buf); | |
349 | return; | |
350 | } | |
351 | if (!strcmp(parent->type, "virtual-devices")) { | |
352 | vdev_path_component(dp, tmp_buf); | |
353 | return; | |
354 | } | |
372b07bb DM |
355 | /* "isa" is handled with platform naming */ |
356 | } | |
357 | ||
358 | /* Use platform naming convention. */ | |
c91e2eca DM |
359 | if (tlb_type == hypervisor) { |
360 | sun4v_path_component(dp, tmp_buf); | |
361 | return; | |
362 | } else { | |
363 | sun4u_path_component(dp, tmp_buf); | |
364 | } | |
372b07bb DM |
365 | } |
366 | ||
367 | static char * __init build_path_component(struct device_node *dp) | |
368 | { | |
369 | char tmp_buf[64], *n; | |
370 | ||
371 | tmp_buf[0] = '\0'; | |
372 | __build_path_component(dp, tmp_buf); | |
373 | if (tmp_buf[0] == '\0') | |
374 | strcpy(tmp_buf, dp->name); | |
375 | ||
376 | n = prom_early_alloc(strlen(tmp_buf) + 1); | |
377 | strcpy(n, tmp_buf); | |
378 | ||
379 | return n; | |
380 | } | |
381 | ||
382 | static char * __init build_full_name(struct device_node *dp) | |
383 | { | |
384 | int len, ourlen, plen; | |
385 | char *n; | |
386 | ||
387 | plen = strlen(dp->parent->full_name); | |
388 | ourlen = strlen(dp->path_component_name); | |
389 | len = ourlen + plen + 2; | |
390 | ||
391 | n = prom_early_alloc(len); | |
392 | strcpy(n, dp->parent->full_name); | |
393 | if (!is_root_node(dp->parent)) { | |
394 | strcpy(n + plen, "/"); | |
395 | plen++; | |
396 | } | |
397 | strcpy(n + plen, dp->path_component_name); | |
398 | ||
399 | return n; | |
400 | } | |
401 | ||
87b385da | 402 | static struct property * __init build_one_prop(phandle node, char *prev, char *special_name, void *special_val, int special_len) |
372b07bb DM |
403 | { |
404 | static struct property *tmp = NULL; | |
405 | struct property *p; | |
406 | ||
407 | if (tmp) { | |
408 | p = tmp; | |
409 | memset(p, 0, sizeof(*p) + 32); | |
410 | tmp = NULL; | |
87b385da | 411 | } else { |
372b07bb | 412 | p = prom_early_alloc(sizeof(struct property) + 32); |
e5ff0fe3 | 413 | p->unique_id = prom_unique_id++; |
87b385da | 414 | } |
372b07bb DM |
415 | |
416 | p->name = (char *) (p + 1); | |
87b385da DM |
417 | if (special_name) { |
418 | strcpy(p->name, special_name); | |
419 | p->length = special_len; | |
420 | p->value = prom_early_alloc(special_len); | |
421 | memcpy(p->value, special_val, special_len); | |
372b07bb | 422 | } else { |
87b385da DM |
423 | if (prev == NULL) { |
424 | prom_firstprop(node, p->name); | |
425 | } else { | |
426 | prom_nextprop(node, prev, p->name); | |
427 | } | |
428 | if (strlen(p->name) == 0) { | |
429 | tmp = p; | |
430 | return NULL; | |
431 | } | |
432 | p->length = prom_getproplen(node, p->name); | |
433 | if (p->length <= 0) { | |
434 | p->length = 0; | |
435 | } else { | |
436 | p->value = prom_early_alloc(p->length + 1); | |
437 | prom_getproperty(node, p->name, p->value, p->length); | |
438 | ((unsigned char *)p->value)[p->length] = '\0'; | |
439 | } | |
372b07bb DM |
440 | } |
441 | return p; | |
442 | } | |
443 | ||
444 | static struct property * __init build_prop_list(phandle node) | |
445 | { | |
446 | struct property *head, *tail; | |
447 | ||
87b385da DM |
448 | head = tail = build_one_prop(node, NULL, |
449 | ".node", &node, sizeof(node)); | |
450 | ||
451 | tail->next = build_one_prop(node, NULL, NULL, NULL, 0); | |
452 | tail = tail->next; | |
372b07bb | 453 | while(tail) { |
87b385da DM |
454 | tail->next = build_one_prop(node, tail->name, |
455 | NULL, NULL, 0); | |
372b07bb DM |
456 | tail = tail->next; |
457 | } | |
458 | ||
459 | return head; | |
460 | } | |
461 | ||
462 | static char * __init get_one_property(phandle node, const char *name) | |
463 | { | |
464 | char *buf = "<NULL>"; | |
465 | int len; | |
466 | ||
467 | len = prom_getproplen(node, name); | |
468 | if (len > 0) { | |
469 | buf = prom_early_alloc(len); | |
470 | prom_getproperty(node, name, buf, len); | |
471 | } | |
472 | ||
473 | return buf; | |
474 | } | |
475 | ||
4130a4b2 | 476 | static struct device_node * __init create_node(phandle node, struct device_node *parent) |
372b07bb DM |
477 | { |
478 | struct device_node *dp; | |
479 | ||
480 | if (!node) | |
481 | return NULL; | |
482 | ||
483 | dp = prom_early_alloc(sizeof(*dp)); | |
e5ff0fe3 | 484 | dp->unique_id = prom_unique_id++; |
4130a4b2 | 485 | dp->parent = parent; |
372b07bb DM |
486 | |
487 | kref_init(&dp->kref); | |
488 | ||
489 | dp->name = get_one_property(node, "name"); | |
490 | dp->type = get_one_property(node, "device_type"); | |
491 | dp->node = node; | |
492 | ||
372b07bb DM |
493 | dp->properties = build_prop_list(node); |
494 | ||
2b1e5978 DM |
495 | irq_trans_init(dp); |
496 | ||
372b07bb DM |
497 | return dp; |
498 | } | |
499 | ||
500 | static struct device_node * __init build_tree(struct device_node *parent, phandle node, struct device_node ***nextp) | |
501 | { | |
aa5242e7 | 502 | struct device_node *ret = NULL, *prev_sibling = NULL; |
372b07bb DM |
503 | struct device_node *dp; |
504 | ||
aa5242e7 DM |
505 | while (1) { |
506 | dp = create_node(node, parent); | |
507 | if (!dp) | |
508 | break; | |
509 | ||
510 | if (prev_sibling) | |
511 | prev_sibling->sibling = dp; | |
512 | ||
513 | if (!ret) | |
514 | ret = dp; | |
515 | prev_sibling = dp; | |
516 | ||
372b07bb DM |
517 | *(*nextp) = dp; |
518 | *nextp = &dp->allnext; | |
519 | ||
372b07bb DM |
520 | dp->path_component_name = build_path_component(dp); |
521 | dp->full_name = build_full_name(dp); | |
522 | ||
523 | dp->child = build_tree(dp, prom_getchild(node), nextp); | |
524 | ||
aa5242e7 | 525 | node = prom_getsibling(node); |
372b07bb DM |
526 | } |
527 | ||
aa5242e7 | 528 | return ret; |
372b07bb DM |
529 | } |
530 | ||
5cbc3073 DM |
531 | static const char *get_mid_prop(void) |
532 | { | |
533 | return (tlb_type == spitfire ? "upa-portid" : "portid"); | |
534 | } | |
535 | ||
536 | struct device_node *of_find_node_by_cpuid(int cpuid) | |
537 | { | |
538 | struct device_node *dp; | |
539 | const char *mid_prop = get_mid_prop(); | |
540 | ||
541 | for_each_node_by_type(dp, "cpu") { | |
542 | int id = of_getintprop_default(dp, mid_prop, -1); | |
543 | const char *this_mid_prop = mid_prop; | |
544 | ||
545 | if (id < 0) { | |
546 | this_mid_prop = "cpuid"; | |
547 | id = of_getintprop_default(dp, this_mid_prop, -1); | |
548 | } | |
549 | ||
550 | if (id < 0) { | |
551 | prom_printf("OF: Serious problem, cpu lacks " | |
552 | "%s property", this_mid_prop); | |
553 | prom_halt(); | |
554 | } | |
555 | if (cpuid == id) | |
556 | return dp; | |
557 | } | |
558 | return NULL; | |
559 | } | |
560 | ||
561 | static void __init of_fill_in_cpu_data(void) | |
562 | { | |
563 | struct device_node *dp; | |
564 | const char *mid_prop = get_mid_prop(); | |
565 | ||
566 | ncpus_probed = 0; | |
567 | for_each_node_by_type(dp, "cpu") { | |
568 | int cpuid = of_getintprop_default(dp, mid_prop, -1); | |
569 | const char *this_mid_prop = mid_prop; | |
570 | struct device_node *portid_parent; | |
571 | int portid = -1; | |
572 | ||
573 | portid_parent = NULL; | |
574 | if (cpuid < 0) { | |
575 | this_mid_prop = "cpuid"; | |
576 | cpuid = of_getintprop_default(dp, this_mid_prop, -1); | |
577 | if (cpuid >= 0) { | |
578 | int limit = 2; | |
579 | ||
580 | portid_parent = dp; | |
581 | while (limit--) { | |
582 | portid_parent = portid_parent->parent; | |
583 | if (!portid_parent) | |
584 | break; | |
585 | portid = of_getintprop_default(portid_parent, | |
586 | "portid", -1); | |
587 | if (portid >= 0) | |
588 | break; | |
589 | } | |
590 | } | |
591 | } | |
592 | ||
593 | if (cpuid < 0) { | |
594 | prom_printf("OF: Serious problem, cpu lacks " | |
595 | "%s property", this_mid_prop); | |
596 | prom_halt(); | |
597 | } | |
598 | ||
599 | ncpus_probed++; | |
600 | ||
601 | #ifdef CONFIG_SMP | |
8a177c4f DM |
602 | if (cpuid >= NR_CPUS) { |
603 | printk(KERN_WARNING "Ignoring CPU %d which is " | |
604 | ">= NR_CPUS (%d)\n", | |
605 | cpuid, NR_CPUS); | |
5cbc3073 | 606 | continue; |
8a177c4f | 607 | } |
5cbc3073 DM |
608 | #else |
609 | /* On uniprocessor we only want the values for the | |
610 | * real physical cpu the kernel booted onto, however | |
611 | * cpu_data() only has one entry at index 0. | |
612 | */ | |
613 | if (cpuid != real_hard_smp_processor_id()) | |
614 | continue; | |
615 | cpuid = 0; | |
616 | #endif | |
617 | ||
618 | cpu_data(cpuid).clock_tick = | |
619 | of_getintprop_default(dp, "clock-frequency", 0); | |
620 | ||
621 | if (portid_parent) { | |
622 | cpu_data(cpuid).dcache_size = | |
623 | of_getintprop_default(dp, "l1-dcache-size", | |
624 | 16 * 1024); | |
625 | cpu_data(cpuid).dcache_line_size = | |
626 | of_getintprop_default(dp, "l1-dcache-line-size", | |
627 | 32); | |
628 | cpu_data(cpuid).icache_size = | |
629 | of_getintprop_default(dp, "l1-icache-size", | |
630 | 8 * 1024); | |
631 | cpu_data(cpuid).icache_line_size = | |
632 | of_getintprop_default(dp, "l1-icache-line-size", | |
633 | 32); | |
634 | cpu_data(cpuid).ecache_size = | |
635 | of_getintprop_default(dp, "l2-cache-size", 0); | |
636 | cpu_data(cpuid).ecache_line_size = | |
637 | of_getintprop_default(dp, "l2-cache-line-size", 0); | |
638 | if (!cpu_data(cpuid).ecache_size || | |
639 | !cpu_data(cpuid).ecache_line_size) { | |
640 | cpu_data(cpuid).ecache_size = | |
641 | of_getintprop_default(portid_parent, | |
642 | "l2-cache-size", | |
643 | (4 * 1024 * 1024)); | |
644 | cpu_data(cpuid).ecache_line_size = | |
645 | of_getintprop_default(portid_parent, | |
646 | "l2-cache-line-size", 64); | |
647 | } | |
648 | ||
649 | cpu_data(cpuid).core_id = portid + 1; | |
5cd342df | 650 | cpu_data(cpuid).proc_id = portid; |
a2f9f6bb DM |
651 | #ifdef CONFIG_SMP |
652 | sparc64_multi_core = 1; | |
653 | #endif | |
5cbc3073 DM |
654 | } else { |
655 | cpu_data(cpuid).dcache_size = | |
656 | of_getintprop_default(dp, "dcache-size", 16 * 1024); | |
657 | cpu_data(cpuid).dcache_line_size = | |
658 | of_getintprop_default(dp, "dcache-line-size", 32); | |
659 | ||
660 | cpu_data(cpuid).icache_size = | |
661 | of_getintprop_default(dp, "icache-size", 16 * 1024); | |
662 | cpu_data(cpuid).icache_line_size = | |
663 | of_getintprop_default(dp, "icache-line-size", 32); | |
664 | ||
665 | cpu_data(cpuid).ecache_size = | |
666 | of_getintprop_default(dp, "ecache-size", | |
667 | (4 * 1024 * 1024)); | |
668 | cpu_data(cpuid).ecache_line_size = | |
669 | of_getintprop_default(dp, "ecache-line-size", 64); | |
670 | ||
671 | cpu_data(cpuid).core_id = 0; | |
5cd342df | 672 | cpu_data(cpuid).proc_id = -1; |
5cbc3073 DM |
673 | } |
674 | ||
675 | #ifdef CONFIG_SMP | |
676 | cpu_set(cpuid, cpu_present_map); | |
4f0234f4 | 677 | cpu_set(cpuid, cpu_possible_map); |
5cbc3073 DM |
678 | #endif |
679 | } | |
680 | ||
681 | smp_fill_in_sib_core_maps(); | |
682 | } | |
683 | ||
c73fcc84 DM |
684 | struct device_node *of_console_device; |
685 | EXPORT_SYMBOL(of_console_device); | |
686 | ||
687 | char *of_console_path; | |
688 | EXPORT_SYMBOL(of_console_path); | |
689 | ||
690 | char *of_console_options; | |
691 | EXPORT_SYMBOL(of_console_options); | |
692 | ||
693 | static void __init of_console_init(void) | |
694 | { | |
695 | char *msg = "OF stdout device is: %s\n"; | |
696 | struct device_node *dp; | |
697 | const char *type; | |
698 | phandle node; | |
699 | ||
700 | of_console_path = prom_early_alloc(256); | |
701 | if (prom_ihandle2path(prom_stdout, of_console_path, 256) < 0) { | |
702 | prom_printf("Cannot obtain path of stdout.\n"); | |
703 | prom_halt(); | |
704 | } | |
705 | of_console_options = strrchr(of_console_path, ':'); | |
706 | if (of_console_options) { | |
707 | of_console_options++; | |
708 | if (*of_console_options == '\0') | |
709 | of_console_options = NULL; | |
710 | } | |
711 | ||
712 | node = prom_inst2pkg(prom_stdout); | |
713 | if (!node) { | |
714 | prom_printf("Cannot resolve stdout node from " | |
715 | "instance %08x.\n", prom_stdout); | |
716 | prom_halt(); | |
717 | } | |
718 | ||
719 | dp = of_find_node_by_phandle(node); | |
720 | type = of_get_property(dp, "device_type", NULL); | |
721 | if (!type) { | |
722 | prom_printf("Console stdout lacks device_type property.\n"); | |
723 | prom_halt(); | |
724 | } | |
725 | ||
726 | if (strcmp(type, "display") && strcmp(type, "serial")) { | |
727 | prom_printf("Console device_type is neither display " | |
728 | "nor serial.\n"); | |
729 | prom_halt(); | |
730 | } | |
731 | ||
732 | of_console_device = dp; | |
733 | ||
c73fcc84 DM |
734 | printk(msg, of_console_path); |
735 | } | |
736 | ||
372b07bb DM |
737 | void __init prom_build_devicetree(void) |
738 | { | |
739 | struct device_node **nextp; | |
740 | ||
4130a4b2 | 741 | allnodes = create_node(prom_root_node, NULL); |
372b07bb DM |
742 | allnodes->path_component_name = ""; |
743 | allnodes->full_name = "/"; | |
744 | ||
745 | nextp = &allnodes->allnext; | |
746 | allnodes->child = build_tree(allnodes, | |
747 | prom_getchild(allnodes->node), | |
748 | &nextp); | |
c73fcc84 DM |
749 | of_console_init(); |
750 | ||
372b07bb DM |
751 | printk("PROM: Built device tree with %u bytes of memory.\n", |
752 | prom_early_allocated); | |
5cbc3073 DM |
753 | |
754 | if (tlb_type != hypervisor) | |
755 | of_fill_in_cpu_data(); | |
372b07bb | 756 | } |