?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
ACPICA: FADT: Update error msgs for consistency
[linux-2.6/mini2440.git] / drivers / acpi / tables / tbfadt.c
blob87f22e68c6d6abc7e8f8acfa6f37f4d33cdc436a
1 /******************************************************************************
2 *
3 * Module Name: tbfadt - FADT table utilities
4 *
5 *****************************************************************************/
6
7 /*
8 * Copyright (C) 2000 - 2008, Intel Corp.
9 * All rights reserved.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions, and the following disclaimer,
16 * without modification.
17 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
18 * substantially similar to the "NO WARRANTY" disclaimer below
19 * ("Disclaimer") and any redistribution must be conditioned upon
20 * including a substantially similar Disclaimer requirement for further
21 * binary redistribution.
22 * 3. Neither the names of the above-listed copyright holders nor the names
23 * of any contributors may be used to endorse or promote products derived
24 * from this software without specific prior written permission.
25 *
26 * Alternatively, this software may be distributed under the terms of the
27 * GNU General Public License ("GPL") version 2 as published by the Free
28 * Software Foundation.
29 *
30 * NO WARRANTY
31 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
32 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
33 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
34 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
35 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
36 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
37 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
38 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
39 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
40 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
41 * POSSIBILITY OF SUCH DAMAGES.
42 */
43
44 #include <acpi/acpi.h>
45 #include <acpi/accommon.h>
46 #include <acpi/actables.h>
47
48 #define _COMPONENT ACPI_TABLES
49 ACPI_MODULE_NAME("tbfadt")
50
51 /* Local prototypes */
52 static inline void
53 acpi_tb_init_generic_address(struct acpi_generic_address *generic_address,
54 u8 space_id, u8 byte_width, u64 address);
55
56 static void acpi_tb_convert_fadt(void);
57
58 static void acpi_tb_validate_fadt(void);
59
60 /* Table for conversion of FADT to common internal format and FADT validation */
61
62 typedef struct acpi_fadt_info {
63 char *name;
64 u8 address64;
65 u8 address32;
66 u8 length;
67 u8 default_length;
68 u8 type;
69
70 } acpi_fadt_info;
71
72 #define ACPI_FADT_REQUIRED 1
73 #define ACPI_FADT_SEPARATE_LENGTH 2
74
75 static struct acpi_fadt_info fadt_info_table[] = {
76 {"Pm1aEventBlock",
77 ACPI_FADT_OFFSET(xpm1a_event_block),
78 ACPI_FADT_OFFSET(pm1a_event_block),
79 ACPI_FADT_OFFSET(pm1_event_length),
80 ACPI_PM1_REGISTER_WIDTH * 2, /* Enable + Status register */
81 ACPI_FADT_REQUIRED},
82
83 {"Pm1bEventBlock",
84 ACPI_FADT_OFFSET(xpm1b_event_block),
85 ACPI_FADT_OFFSET(pm1b_event_block),
86 ACPI_FADT_OFFSET(pm1_event_length),
87 ACPI_PM1_REGISTER_WIDTH * 2, /* Enable + Status register */
88 0},
89
90 {"Pm1aControlBlock",
91 ACPI_FADT_OFFSET(xpm1a_control_block),
92 ACPI_FADT_OFFSET(pm1a_control_block),
93 ACPI_FADT_OFFSET(pm1_control_length),
94 ACPI_PM1_REGISTER_WIDTH,
95 ACPI_FADT_REQUIRED},
96
97 {"Pm1bControlBlock",
98 ACPI_FADT_OFFSET(xpm1b_control_block),
99 ACPI_FADT_OFFSET(pm1b_control_block),
100 ACPI_FADT_OFFSET(pm1_control_length),
101 ACPI_PM1_REGISTER_WIDTH,
102 0},
103
104 {"Pm2ControlBlock",
105 ACPI_FADT_OFFSET(xpm2_control_block),
106 ACPI_FADT_OFFSET(pm2_control_block),
107 ACPI_FADT_OFFSET(pm2_control_length),
108 ACPI_PM2_REGISTER_WIDTH,
109 ACPI_FADT_SEPARATE_LENGTH},
110
111 {"PmTimerBlock",
112 ACPI_FADT_OFFSET(xpm_timer_block),
113 ACPI_FADT_OFFSET(pm_timer_block),
114 ACPI_FADT_OFFSET(pm_timer_length),
115 ACPI_PM_TIMER_WIDTH,
116 ACPI_FADT_REQUIRED},
117
118 {"Gpe0Block",
119 ACPI_FADT_OFFSET(xgpe0_block),
120 ACPI_FADT_OFFSET(gpe0_block),
121 ACPI_FADT_OFFSET(gpe0_block_length),
122 0,
123 ACPI_FADT_SEPARATE_LENGTH},
124
125 {"Gpe1Block",
126 ACPI_FADT_OFFSET(xgpe1_block),
127 ACPI_FADT_OFFSET(gpe1_block),
128 ACPI_FADT_OFFSET(gpe1_block_length),
129 0,
130 ACPI_FADT_SEPARATE_LENGTH}
131 };
132
133 #define ACPI_FADT_INFO_ENTRIES (sizeof (fadt_info_table) / sizeof (struct acpi_fadt_info))
134
135 /*******************************************************************************
136 *
137 * FUNCTION: acpi_tb_init_generic_address
138 *
139 * PARAMETERS: generic_address - GAS struct to be initialized
140 * byte_width - Width of this register
141 * Address - Address of the register
142 *
143 * RETURN: None
144 *
145 * DESCRIPTION: Initialize a Generic Address Structure (GAS)
146 * See the ACPI specification for a full description and
147 * definition of this structure.
148 *
149 ******************************************************************************/
150
151 static inline void
152 acpi_tb_init_generic_address(struct acpi_generic_address *generic_address,
153 u8 space_id, u8 byte_width, u64 address)
154 {
155
156 /*
157 * The 64-bit Address field is non-aligned in the byte packed
158 * GAS struct.
159 */
160 ACPI_MOVE_64_TO_64(&generic_address->address, &address);
161
162 /* All other fields are byte-wide */
163
164 generic_address->space_id = space_id;
165 generic_address->bit_width = (u8)ACPI_MUL_8(byte_width);
166 generic_address->bit_offset = 0;
167 generic_address->access_width = 0; /* Access width ANY */
168 }
169
170 /*******************************************************************************
171 *
172 * FUNCTION: acpi_tb_parse_fadt
173 *
174 * PARAMETERS: table_index - Index for the FADT
175 * Flags - Flags
176 *
177 * RETURN: None
178 *
179 * DESCRIPTION: Initialize the FADT, DSDT and FACS tables
180 * (FADT contains the addresses of the DSDT and FACS)
181 *
182 ******************************************************************************/
183
184 void acpi_tb_parse_fadt(u32 table_index, u8 flags)
185 {
186 u32 length;
187 struct acpi_table_header *table;
188
189 /*
190 * The FADT has multiple versions with different lengths,
191 * and it contains pointers to both the DSDT and FACS tables.
192 *
193 * Get a local copy of the FADT and convert it to a common format
194 * Map entire FADT, assumed to be smaller than one page.
195 */
196 length = acpi_gbl_root_table_list.tables[table_index].length;
197
198 table =
199 acpi_os_map_memory(acpi_gbl_root_table_list.tables[table_index].
200 address, length);
201 if (!table) {
202 return;
203 }
204
205 /*
206 * Validate the FADT checksum before we copy the table. Ignore
207 * checksum error as we want to try to get the DSDT and FACS.
208 */
209 (void)acpi_tb_verify_checksum(table, length);
210
211 /* Obtain a local copy of the FADT in common ACPI 2.0+ format */
212
213 acpi_tb_create_local_fadt(table, length);
214
215 /* All done with the real FADT, unmap it */
216
217 acpi_os_unmap_memory(table, length);
218
219 /* Obtain the DSDT and FACS tables via their addresses within the FADT */
220
221 acpi_tb_install_table((acpi_physical_address) acpi_gbl_FADT.Xdsdt,
222 flags, ACPI_SIG_DSDT, ACPI_TABLE_INDEX_DSDT);
223
224 acpi_tb_install_table((acpi_physical_address) acpi_gbl_FADT.Xfacs,
225 flags, ACPI_SIG_FACS, ACPI_TABLE_INDEX_FACS);
226 }
227
228 /*******************************************************************************
229 *
230 * FUNCTION: acpi_tb_create_local_fadt
231 *
232 * PARAMETERS: Table - Pointer to BIOS FADT
233 * Length - Length of the table
234 *
235 * RETURN: None
236 *
237 * DESCRIPTION: Get a local copy of the FADT and convert it to a common format.
238 * Performs validation on some important FADT fields.
239 *
240 * NOTE: We create a local copy of the FADT regardless of the version.
241 *
242 ******************************************************************************/
243
244 void acpi_tb_create_local_fadt(struct acpi_table_header *table, u32 length)
245 {
246
247 /*
248 * Check if the FADT is larger than the largest table that we expect
249 * (the ACPI 2.0/3.0 version). If so, truncate the table, and issue
250 * a warning.
251 */
252 if (length > sizeof(struct acpi_table_fadt)) {
253 ACPI_WARNING((AE_INFO,
254 "FADT (revision %u) is longer than ACPI 2.0 version, "
255 "truncating length 0x%X to 0x%zX",
256 table->revision, (unsigned)length,
257 sizeof(struct acpi_table_fadt)));
258 }
259
260 /* Clear the entire local FADT */
261
262 ACPI_MEMSET(&acpi_gbl_FADT, 0, sizeof(struct acpi_table_fadt));
263
264 /* Copy the original FADT, up to sizeof (struct acpi_table_fadt) */
265
266 ACPI_MEMCPY(&acpi_gbl_FADT, table,
267 ACPI_MIN(length, sizeof(struct acpi_table_fadt)));
268
269 /*
270 * 1) Convert the local copy of the FADT to the common internal format
271 * 2) Validate some of the important values within the FADT
272 */
273 acpi_tb_convert_fadt();
274 }
275
276 /*******************************************************************************
277 *
278 * FUNCTION: acpi_tb_convert_fadt
279 *
280 * PARAMETERS: None, uses acpi_gbl_FADT
281 *
282 * RETURN: None
283 *
284 * DESCRIPTION: Converts all versions of the FADT to a common internal format.
285 * Expand all 32-bit addresses to 64-bit.
286 *
287 * NOTE: acpi_gbl_FADT must be of size (struct acpi_table_fadt),
288 * and must contain a copy of the actual FADT.
289 *
290 * ACPICA will use the "X" fields of the FADT for all addresses.
291 *
292 * "X" fields are optional extensions to the original V1.0 fields. Even if
293 * they are present in the structure, they can be optionally not used by
294 * setting them to zero. Therefore, we must selectively expand V1.0 fields
295 * if the corresponding X field is zero.
296 *
297 * For ACPI 1.0 FADTs, all address fields are expanded to the corresponding
298 * "X" fields.
299 *
300 * For ACPI 2.0 FADTs, any "X" fields that are NULL are filled in by
301 * expanding the corresponding ACPI 1.0 field.
302 *
303 ******************************************************************************/
304
305 static void acpi_tb_convert_fadt(void)
306 {
307 u8 pm1_register_bit_width;
308 u8 pm1_register_byte_width;
309 struct acpi_generic_address *target64;
310 u32 i;
311
312 /* Update the local FADT table header length */
313
314 acpi_gbl_FADT.header.length = sizeof(struct acpi_table_fadt);
315
316 /*
317 * Expand the 32-bit FACS and DSDT addresses to 64-bit as necessary.
318 * Later code will always use the X 64-bit field. Also, check for an
319 * address mismatch between the 32-bit and 64-bit address fields
320 * (FIRMWARE_CTRL/X_FIRMWARE_CTRL, DSDT/X_DSDT) which would indicate
321 * the presence of two FACS or two DSDT tables.
322 */
323 if (!acpi_gbl_FADT.Xfacs) {
324 acpi_gbl_FADT.Xfacs = (u64) acpi_gbl_FADT.facs;
325 } else if (acpi_gbl_FADT.facs &&
326 (acpi_gbl_FADT.Xfacs != (u64) acpi_gbl_FADT.facs)) {
327 ACPI_WARNING((AE_INFO,
328 "32/64 FACS address mismatch in FADT - two FACS tables!"));
329 }
330
331 if (!acpi_gbl_FADT.Xdsdt) {
332 acpi_gbl_FADT.Xdsdt = (u64) acpi_gbl_FADT.dsdt;
333 } else if (acpi_gbl_FADT.dsdt &&
334 (acpi_gbl_FADT.Xdsdt != (u64) acpi_gbl_FADT.dsdt)) {
335 ACPI_WARNING((AE_INFO,
336 "32/64 DSDT address mismatch in FADT - two DSDT tables!"));
337 }
338
339 /*
340 * For ACPI 1.0 FADTs (revision 1 or 2), ensure that reserved fields which
341 * should be zero are indeed zero. This will workaround BIOSs that
342 * inadvertently place values in these fields.
343 *
344 * The ACPI 1.0 reserved fields that will be zeroed are the bytes located at
345 * offset 45, 55, 95, and the word located at offset 109, 110.
346 */
347 if (acpi_gbl_FADT.header.revision < FADT2_REVISION_ID) {
348 acpi_gbl_FADT.preferred_profile = 0;
349 acpi_gbl_FADT.pstate_control = 0;
350 acpi_gbl_FADT.cst_control = 0;
351 acpi_gbl_FADT.boot_flags = 0;
352 }
353
354 /*
355 * Expand the ACPI 1.0 32-bit addresses to the ACPI 2.0 64-bit "X"
356 * generic address structures as necessary. Later code will always use
357 * the 64-bit address structures.
358 */
359 for (i = 0; i < ACPI_FADT_INFO_ENTRIES; i++) {
360 target64 =
361 ACPI_ADD_PTR(struct acpi_generic_address, &acpi_gbl_FADT,
362 fadt_info_table[i].address64);
363
364 /* Expand only if the 64-bit X target is null */
365
366 if (!target64->address) {
367
368 /* The space_id is always I/O for the 32-bit legacy address fields */
369
370 acpi_tb_init_generic_address(target64,
371 ACPI_ADR_SPACE_SYSTEM_IO,
372 *ACPI_ADD_PTR(u8,
373 &acpi_gbl_FADT,
374 fadt_info_table
375 [i].length),
376 (u64) * ACPI_ADD_PTR(u32,
377 &acpi_gbl_FADT,
378 fadt_info_table
379 [i].
380 address32));
381 }
382 }
383
384 /* Validate FADT values now, before we make any changes */
385
386 acpi_tb_validate_fadt();
387
388 /*
389 * Optionally check all register lengths against the default values and
390 * update them if they are incorrect.
391 */
392 if (acpi_gbl_use_default_register_widths) {
393 for (i = 0; i < ACPI_FADT_INFO_ENTRIES; i++) {
394 target64 =
395 ACPI_ADD_PTR(struct acpi_generic_address,
396 &acpi_gbl_FADT,
397 fadt_info_table[i].address64);
398
399 /*
400 * If a valid register (Address != 0) and the (default_length > 0)
401 * (Not a GPE register), then check the width against the default.
402 */
403 if ((target64->address) &&
404 (fadt_info_table[i].default_length > 0) &&
405 (fadt_info_table[i].default_length !=
406 target64->bit_width)) {
407 ACPI_WARNING((AE_INFO,
408 "Invalid length for %s: %d, using default %d",
409 fadt_info_table[i].name,
410 target64->bit_width,
411 fadt_info_table[i].
412 default_length));
413
414 /* Incorrect size, set width to the default */
415
416 target64->bit_width =
417 fadt_info_table[i].default_length;
418 }
419 }
420 }
421
422 /*
423 * Get the length of the individual PM1 registers (enable and status).
424 * Each register is defined to be (event block length / 2).
425 */
426 pm1_register_bit_width =
427 (u8)ACPI_DIV_2(acpi_gbl_FADT.xpm1a_event_block.bit_width);
428 pm1_register_byte_width = (u8)ACPI_DIV_8(pm1_register_bit_width);
429
430 /*
431 * Adjust the lengths of the PM1 Event Blocks so that they can be used to
432 * access the PM1 status register(s). Use (width / 2)
433 */
434 acpi_gbl_FADT.xpm1a_event_block.bit_width = pm1_register_bit_width;
435 acpi_gbl_FADT.xpm1b_event_block.bit_width = pm1_register_bit_width;
436
437 /*
438 * Calculate separate GAS structs for the PM1 Enable registers.
439 * These addresses do not appear (directly) in the FADT, so it is
440 * useful to calculate them once, here.
441 *
442 * The PM event blocks are split into two register blocks, first is the
443 * PM Status Register block, followed immediately by the PM Enable
444 * Register block. Each is of length (xpm1x_event_block.bit_width/2).
445 *
446 * On various systems the v2 fields (and particularly the bit widths)
447 * cannot be relied upon, though. Hence resort to using the v1 length
448 * here (and warn about the inconsistency).
449 */
450 if (acpi_gbl_FADT.xpm1a_event_block.bit_width
451 != acpi_gbl_FADT.pm1_event_length * 8)
452 printk(KERN_WARNING "FADT: "
453 "X_PM1a_EVT_BLK.bit_width (%u) does not match"
454 " PM1_EVT_LEN (%u)\n",
455 acpi_gbl_FADT.xpm1a_event_block.bit_width,
456 acpi_gbl_FADT.pm1_event_length);
457
458 /* The PM1A register block is required */
459
460 acpi_tb_init_generic_address(&acpi_gbl_xpm1a_enable,
461 acpi_gbl_FADT.xpm1a_event_block.space_id,
462 pm1_register_byte_width,
463 (acpi_gbl_FADT.xpm1a_event_block.address +
464 pm1_register_byte_width));
465 /* Don't forget to copy space_id of the GAS */
466 acpi_gbl_xpm1a_enable.space_id =
467 acpi_gbl_FADT.xpm1a_event_block.space_id;
468
469 /* The PM1B register block is optional, ignore if not present */
470
471 if (acpi_gbl_FADT.xpm1b_event_block.address) {
472 if (acpi_gbl_FADT.xpm1b_event_block.bit_width
473 != acpi_gbl_FADT.pm1_event_length * 8)
474 printk(KERN_WARNING "FADT: "
475 "X_PM1b_EVT_BLK.bit_width (%u) does not match"
476 " PM1_EVT_LEN (%u)\n",
477 acpi_gbl_FADT.xpm1b_event_block.bit_width,
478 acpi_gbl_FADT.pm1_event_length);
479 acpi_tb_init_generic_address(&acpi_gbl_xpm1b_enable,
480 acpi_gbl_FADT.xpm1b_event_block.space_id,
481 pm1_register_byte_width,
482 (acpi_gbl_FADT.xpm1b_event_block.
483 address + pm1_register_byte_width));
484 /* Don't forget to copy space_id of the GAS */
485 acpi_gbl_xpm1b_enable.space_id =
486 acpi_gbl_FADT.xpm1b_event_block.space_id;
487
488 }
489 }
490
491 /******************************************************************************
492 *
493 * FUNCTION: acpi_tb_validate_fadt
494 *
495 * PARAMETERS: Table - Pointer to the FADT to be validated
496 *
497 * RETURN: None
498 *
499 * DESCRIPTION: Validate various important fields within the FADT. If a problem
500 * is found, issue a message, but no status is returned.
501 * Used by both the table manager and the disassembler.
502 *
503 * Possible additional checks:
504 * (acpi_gbl_FADT.pm1_event_length >= 4)
505 * (acpi_gbl_FADT.pm1_control_length >= 2)
506 * (acpi_gbl_FADT.pm_timer_length >= 4)
507 * Gpe block lengths must be multiple of 2
508 *
509 ******************************************************************************/
510
511 static void acpi_tb_validate_fadt(void)
512 {
513 char *name;
514 u32 *address32;
515 struct acpi_generic_address *address64;
516 u8 length;
517 u32 i;
518
519 /*
520 * Check for FACS and DSDT address mismatches. An address mismatch between
521 * the 32-bit and 64-bit address fields (FIRMWARE_CTRL/X_FIRMWARE_CTRL and
522 * DSDT/X_DSDT) would indicate the presence of two FACS or two DSDT tables.
523 */
524 if (acpi_gbl_FADT.facs &&
525 (acpi_gbl_FADT.Xfacs != (u64) acpi_gbl_FADT.facs)) {
526 ACPI_WARNING((AE_INFO,
527 "32/64X FACS address mismatch in FADT - "
528 "two FACS tables! %8.8X/%8.8X%8.8X",
529 acpi_gbl_FADT.facs,
530 ACPI_FORMAT_UINT64(acpi_gbl_FADT.Xfacs)));
531 }
532
533 if (acpi_gbl_FADT.dsdt &&
534 (acpi_gbl_FADT.Xdsdt != (u64) acpi_gbl_FADT.dsdt)) {
535 ACPI_WARNING((AE_INFO,
536 "32/64X DSDT address mismatch in FADT - "
537 "two DSDT tables! %8.8X/%8.8X%8.8X",
538 acpi_gbl_FADT.dsdt,
539 ACPI_FORMAT_UINT64(acpi_gbl_FADT.Xdsdt)));
540 }
541
542 /* Examine all of the 64-bit extended address fields (X fields) */
543
544 for (i = 0; i < ACPI_FADT_INFO_ENTRIES; i++) {
545 /*
546 * Generate pointers to the 32-bit and 64-bit addresses, get the
547 * register length (width), and the register name
548 */
549 address64 = ACPI_ADD_PTR(struct acpi_generic_address,
550 &acpi_gbl_FADT,
551 fadt_info_table[i].address64);
552 address32 =
553 ACPI_ADD_PTR(u32, &acpi_gbl_FADT,
554 fadt_info_table[i].address32);
555 length =
556 *ACPI_ADD_PTR(u8, &acpi_gbl_FADT,
557 fadt_info_table[i].length);
558 name = fadt_info_table[i].name;
559
560 /*
561 * For each extended field, check for length mismatch between the
562 * legacy length field and the corresponding 64-bit X length field.
563 */
564 if (address64 && (address64->bit_width != ACPI_MUL_8(length))) {
565 ACPI_WARNING((AE_INFO,
566 "32/64X length mismatch in %s: %d/%d",
567 name, ACPI_MUL_8(length),
568 address64->bit_width));
569 }
570
571 if (fadt_info_table[i].type & ACPI_FADT_REQUIRED) {
572 /*
573 * Field is required (Pm1a_event, Pm1a_control, pm_timer).
574 * Both the address and length must be non-zero.
575 */
576 if (!address64->address || !length) {
577 ACPI_ERROR((AE_INFO,
578 "Required field %s has zero address and/or length: %8.8X%8.8X/%X",
579 name,
580 ACPI_FORMAT_UINT64(address64->
581 address),
582 length));
583 }
584 } else if (fadt_info_table[i].type & ACPI_FADT_SEPARATE_LENGTH) {
585 /*
586 * Field is optional (PM2Control, GPE0, GPE1) AND has its own
587 * length field. If present, both the address and length must be valid.
588 */
589 if ((address64->address && !length)
590 || (!address64->address && length)) {
591 ACPI_WARNING((AE_INFO,
592 "Optional field %s has zero address or length: %8.8X%8.8X/%X",
593 name,
594 ACPI_FORMAT_UINT64(address64->
595 address),
596 length));
597 }
598 }
599
600 /* If both 32- and 64-bit addresses are valid (non-zero), they must match */
601
602 if (address64->address && *address32 &&
603 (address64->address != (u64) * address32)) {
604 ACPI_ERROR((AE_INFO,
605 "32/64X address mismatch in %s: %8.8X/%8.8X%8.8X, using 64X",
606 name, *address32,
607 ACPI_FORMAT_UINT64(address64->address)));
608 }
609 }
610 }
Support for the Chinese Samsung S3C2440 based development boards