aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/watchdog/iTCO_wdt.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/watchdog/iTCO_wdt.c')
-rw-r--r--drivers/watchdog/iTCO_wdt.c143
1 files changed, 128 insertions, 15 deletions
diff --git a/drivers/watchdog/iTCO_wdt.c b/drivers/watchdog/iTCO_wdt.c
index 69de8713b8e4..5fd020da7c55 100644
--- a/drivers/watchdog/iTCO_wdt.c
+++ b/drivers/watchdog/iTCO_wdt.c
@@ -1,7 +1,7 @@
1/* 1/*
2 * intel TCO Watchdog Driver 2 * intel TCO Watchdog Driver
3 * 3 *
4 * (c) Copyright 2006-2009 Wim Van Sebroeck <wim@iguana.be>. 4 * (c) Copyright 2006-2010 Wim Van Sebroeck <wim@iguana.be>.
5 * 5 *
6 * This program is free software; you can redistribute it and/or 6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License 7 * modify it under the terms of the GNU General Public License
@@ -26,12 +26,16 @@
26 * document number 301473-002, 301474-026: 82801F (ICH6) 26 * document number 301473-002, 301474-026: 82801F (ICH6)
27 * document number 313082-001, 313075-006: 631xESB, 632xESB 27 * document number 313082-001, 313075-006: 631xESB, 632xESB
28 * document number 307013-003, 307014-024: 82801G (ICH7) 28 * document number 307013-003, 307014-024: 82801G (ICH7)
29 * document number 322896-001, 322897-001: NM10
29 * document number 313056-003, 313057-017: 82801H (ICH8) 30 * document number 313056-003, 313057-017: 82801H (ICH8)
30 * document number 316972-004, 316973-012: 82801I (ICH9) 31 * document number 316972-004, 316973-012: 82801I (ICH9)
31 * document number 319973-002, 319974-002: 82801J (ICH10) 32 * document number 319973-002, 319974-002: 82801J (ICH10)
32 * document number 322169-001, 322170-003: 5 Series, 3400 Series (PCH) 33 * document number 322169-001, 322170-003: 5 Series, 3400 Series (PCH)
33 * document number 320066-003, 320257-008: EP80597 (IICH) 34 * document number 320066-003, 320257-008: EP80597 (IICH)
34 * document number TBD : Cougar Point (CPT) 35 * document number 324645-001, 324646-001: Cougar Point (CPT)
36 * document number TBD : Patsburg (PBG)
37 * document number TBD : DH89xxCC
38 * document number TBD : Panther Point
35 */ 39 */
36 40
37/* 41/*
@@ -84,6 +88,7 @@ enum iTCO_chipsets {
84 TCO_ICH7DH, /* ICH7DH */ 88 TCO_ICH7DH, /* ICH7DH */
85 TCO_ICH7M, /* ICH7-M & ICH7-U */ 89 TCO_ICH7M, /* ICH7-M & ICH7-U */
86 TCO_ICH7MDH, /* ICH7-M DH */ 90 TCO_ICH7MDH, /* ICH7-M DH */
91 TCO_NM10, /* NM10 */
87 TCO_ICH8, /* ICH8 & ICH8R */ 92 TCO_ICH8, /* ICH8 & ICH8R */
88 TCO_ICH8DH, /* ICH8DH */ 93 TCO_ICH8DH, /* ICH8DH */
89 TCO_ICH8DO, /* ICH8DO */ 94 TCO_ICH8DO, /* ICH8DO */
@@ -146,6 +151,41 @@ enum iTCO_chipsets {
146 TCO_CPT29, /* Cougar Point */ 151 TCO_CPT29, /* Cougar Point */
147 TCO_CPT30, /* Cougar Point */ 152 TCO_CPT30, /* Cougar Point */
148 TCO_CPT31, /* Cougar Point */ 153 TCO_CPT31, /* Cougar Point */
154 TCO_PBG1, /* Patsburg */
155 TCO_PBG2, /* Patsburg */
156 TCO_DH89XXCC, /* DH89xxCC */
157 TCO_PPT0, /* Panther Point */
158 TCO_PPT1, /* Panther Point */
159 TCO_PPT2, /* Panther Point */
160 TCO_PPT3, /* Panther Point */
161 TCO_PPT4, /* Panther Point */
162 TCO_PPT5, /* Panther Point */
163 TCO_PPT6, /* Panther Point */
164 TCO_PPT7, /* Panther Point */
165 TCO_PPT8, /* Panther Point */
166 TCO_PPT9, /* Panther Point */
167 TCO_PPT10, /* Panther Point */
168 TCO_PPT11, /* Panther Point */
169 TCO_PPT12, /* Panther Point */
170 TCO_PPT13, /* Panther Point */
171 TCO_PPT14, /* Panther Point */
172 TCO_PPT15, /* Panther Point */
173 TCO_PPT16, /* Panther Point */
174 TCO_PPT17, /* Panther Point */
175 TCO_PPT18, /* Panther Point */
176 TCO_PPT19, /* Panther Point */
177 TCO_PPT20, /* Panther Point */
178 TCO_PPT21, /* Panther Point */
179 TCO_PPT22, /* Panther Point */
180 TCO_PPT23, /* Panther Point */
181 TCO_PPT24, /* Panther Point */
182 TCO_PPT25, /* Panther Point */
183 TCO_PPT26, /* Panther Point */
184 TCO_PPT27, /* Panther Point */
185 TCO_PPT28, /* Panther Point */
186 TCO_PPT29, /* Panther Point */
187 TCO_PPT30, /* Panther Point */
188 TCO_PPT31, /* Panther Point */
149}; 189};
150 190
151static struct { 191static struct {
@@ -171,6 +211,7 @@ static struct {
171 {"ICH7DH", 2}, 211 {"ICH7DH", 2},
172 {"ICH7-M or ICH7-U", 2}, 212 {"ICH7-M or ICH7-U", 2},
173 {"ICH7-M DH", 2}, 213 {"ICH7-M DH", 2},
214 {"NM10", 2},
174 {"ICH8 or ICH8R", 2}, 215 {"ICH8 or ICH8R", 2},
175 {"ICH8DH", 2}, 216 {"ICH8DH", 2},
176 {"ICH8DO", 2}, 217 {"ICH8DO", 2},
@@ -233,10 +274,45 @@ static struct {
233 {"Cougar Point", 2}, 274 {"Cougar Point", 2},
234 {"Cougar Point", 2}, 275 {"Cougar Point", 2},
235 {"Cougar Point", 2}, 276 {"Cougar Point", 2},
277 {"Patsburg", 2},
278 {"Patsburg", 2},
279 {"DH89xxCC", 2},
280 {"Panther Point", 2},
281 {"Panther Point", 2},
282 {"Panther Point", 2},
283 {"Panther Point", 2},
284 {"Panther Point", 2},
285 {"Panther Point", 2},
286 {"Panther Point", 2},
287 {"Panther Point", 2},
288 {"Panther Point", 2},
289 {"Panther Point", 2},
290 {"Panther Point", 2},
291 {"Panther Point", 2},
292 {"Panther Point", 2},
293 {"Panther Point", 2},
294 {"Panther Point", 2},
295 {"Panther Point", 2},
296 {"Panther Point", 2},
297 {"Panther Point", 2},
298 {"Panther Point", 2},
299 {"Panther Point", 2},
300 {"Panther Point", 2},
301 {"Panther Point", 2},
302 {"Panther Point", 2},
303 {"Panther Point", 2},
304 {"Panther Point", 2},
305 {"Panther Point", 2},
306 {"Panther Point", 2},
307 {"Panther Point", 2},
308 {"Panther Point", 2},
309 {"Panther Point", 2},
310 {"Panther Point", 2},
311 {"Panther Point", 2},
236 {NULL, 0} 312 {NULL, 0}
237}; 313};
238 314
239#define ITCO_PCI_DEVICE(dev, data) \ 315#define ITCO_PCI_DEVICE(dev, data) \
240 .vendor = PCI_VENDOR_ID_INTEL, \ 316 .vendor = PCI_VENDOR_ID_INTEL, \
241 .device = dev, \ 317 .device = dev, \
242 .subvendor = PCI_ANY_ID, \ 318 .subvendor = PCI_ANY_ID, \
@@ -251,7 +327,7 @@ static struct {
251 * pci_driver, because the I/O Controller Hub has also other 327 * pci_driver, because the I/O Controller Hub has also other
252 * functions that probably will be registered by other drivers. 328 * functions that probably will be registered by other drivers.
253 */ 329 */
254static struct pci_device_id iTCO_wdt_pci_tbl[] = { 330static DEFINE_PCI_DEVICE_TABLE(iTCO_wdt_pci_tbl) = {
255 { ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_82801AA_0, TCO_ICH)}, 331 { ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_82801AA_0, TCO_ICH)},
256 { ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_82801AB_0, TCO_ICH0)}, 332 { ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_82801AB_0, TCO_ICH0)},
257 { ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_82801BA_0, TCO_ICH2)}, 333 { ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_82801BA_0, TCO_ICH2)},
@@ -286,6 +362,7 @@ static struct pci_device_id iTCO_wdt_pci_tbl[] = {
286 { ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_ICH7_30, TCO_ICH7DH)}, 362 { ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_ICH7_30, TCO_ICH7DH)},
287 { ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_ICH7_1, TCO_ICH7M)}, 363 { ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_ICH7_1, TCO_ICH7M)},
288 { ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_ICH7_31, TCO_ICH7MDH)}, 364 { ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_ICH7_31, TCO_ICH7MDH)},
365 { ITCO_PCI_DEVICE(0x27bc, TCO_NM10)},
289 { ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_ICH8_0, TCO_ICH8)}, 366 { ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_ICH8_0, TCO_ICH8)},
290 { ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_ICH8_2, TCO_ICH8DH)}, 367 { ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_ICH8_2, TCO_ICH8DH)},
291 { ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_ICH8_3, TCO_ICH8DO)}, 368 { ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_ICH8_3, TCO_ICH8DO)},
@@ -348,6 +425,41 @@ static struct pci_device_id iTCO_wdt_pci_tbl[] = {
348 { ITCO_PCI_DEVICE(0x1c5d, TCO_CPT29)}, 425 { ITCO_PCI_DEVICE(0x1c5d, TCO_CPT29)},
349 { ITCO_PCI_DEVICE(0x1c5e, TCO_CPT30)}, 426 { ITCO_PCI_DEVICE(0x1c5e, TCO_CPT30)},
350 { ITCO_PCI_DEVICE(0x1c5f, TCO_CPT31)}, 427 { ITCO_PCI_DEVICE(0x1c5f, TCO_CPT31)},
428 { ITCO_PCI_DEVICE(0x1d40, TCO_PBG1)},
429 { ITCO_PCI_DEVICE(0x1d41, TCO_PBG2)},
430 { ITCO_PCI_DEVICE(0x2310, TCO_DH89XXCC)},
431 { ITCO_PCI_DEVICE(0x1e40, TCO_PPT0)},
432 { ITCO_PCI_DEVICE(0x1e41, TCO_PPT1)},
433 { ITCO_PCI_DEVICE(0x1e42, TCO_PPT2)},
434 { ITCO_PCI_DEVICE(0x1e43, TCO_PPT3)},
435 { ITCO_PCI_DEVICE(0x1e44, TCO_PPT4)},
436 { ITCO_PCI_DEVICE(0x1e45, TCO_PPT5)},
437 { ITCO_PCI_DEVICE(0x1e46, TCO_PPT6)},
438 { ITCO_PCI_DEVICE(0x1e47, TCO_PPT7)},
439 { ITCO_PCI_DEVICE(0x1e48, TCO_PPT8)},
440 { ITCO_PCI_DEVICE(0x1e49, TCO_PPT9)},
441 { ITCO_PCI_DEVICE(0x1e4a, TCO_PPT10)},
442 { ITCO_PCI_DEVICE(0x1e4b, TCO_PPT11)},
443 { ITCO_PCI_DEVICE(0x1e4c, TCO_PPT12)},
444 { ITCO_PCI_DEVICE(0x1e4d, TCO_PPT13)},
445 { ITCO_PCI_DEVICE(0x1e4e, TCO_PPT14)},
446 { ITCO_PCI_DEVICE(0x1e4f, TCO_PPT15)},
447 { ITCO_PCI_DEVICE(0x1e50, TCO_PPT16)},
448 { ITCO_PCI_DEVICE(0x1e51, TCO_PPT17)},
449 { ITCO_PCI_DEVICE(0x1e52, TCO_PPT18)},
450 { ITCO_PCI_DEVICE(0x1e53, TCO_PPT19)},
451 { ITCO_PCI_DEVICE(0x1e54, TCO_PPT20)},
452 { ITCO_PCI_DEVICE(0x1e55, TCO_PPT21)},
453 { ITCO_PCI_DEVICE(0x1e56, TCO_PPT22)},
454 { ITCO_PCI_DEVICE(0x1e57, TCO_PPT23)},
455 { ITCO_PCI_DEVICE(0x1e58, TCO_PPT24)},
456 { ITCO_PCI_DEVICE(0x1e59, TCO_PPT25)},
457 { ITCO_PCI_DEVICE(0x1e5a, TCO_PPT26)},
458 { ITCO_PCI_DEVICE(0x1e5b, TCO_PPT27)},
459 { ITCO_PCI_DEVICE(0x1e5c, TCO_PPT28)},
460 { ITCO_PCI_DEVICE(0x1e5d, TCO_PPT29)},
461 { ITCO_PCI_DEVICE(0x1e5e, TCO_PPT30)},
462 { ITCO_PCI_DEVICE(0x1e5f, TCO_PPT31)},
351 { 0, }, /* End of list */ 463 { 0, }, /* End of list */
352}; 464};
353MODULE_DEVICE_TABLE(pci, iTCO_wdt_pci_tbl); 465MODULE_DEVICE_TABLE(pci, iTCO_wdt_pci_tbl);
@@ -374,7 +486,7 @@ static char expect_release;
374static struct { /* this is private data for the iTCO_wdt device */ 486static struct { /* this is private data for the iTCO_wdt device */
375 /* TCO version/generation */ 487 /* TCO version/generation */
376 unsigned int iTCO_version; 488 unsigned int iTCO_version;
377 /* The cards ACPIBASE address (TCOBASE = ACPIBASE+0x60) */ 489 /* The device's ACPIBASE address (TCOBASE = ACPIBASE+0x60) */
378 unsigned long ACPIBASE; 490 unsigned long ACPIBASE;
379 /* NO_REBOOT flag is Memory-Mapped GCS register bit 5 (TCO version 2)*/ 491 /* NO_REBOOT flag is Memory-Mapped GCS register bit 5 (TCO version 2)*/
380 unsigned long __iomem *gcs; 492 unsigned long __iomem *gcs;
@@ -467,7 +579,7 @@ static int iTCO_wdt_start(void)
467 if (iTCO_wdt_unset_NO_REBOOT_bit()) { 579 if (iTCO_wdt_unset_NO_REBOOT_bit()) {
468 spin_unlock(&iTCO_wdt_private.io_lock); 580 spin_unlock(&iTCO_wdt_private.io_lock);
469 printk(KERN_ERR PFX "failed to reset NO_REBOOT flag, " 581 printk(KERN_ERR PFX "failed to reset NO_REBOOT flag, "
470 "reboot disabled by hardware\n"); 582 "reboot disabled by hardware/BIOS\n");
471 return -EIO; 583 return -EIO;
472 } 584 }
473 585
@@ -781,8 +893,8 @@ static int __devinit iTCO_wdt_init(struct pci_dev *pdev,
781 base_address &= 0x0000ff80; 893 base_address &= 0x0000ff80;
782 if (base_address == 0x00000000) { 894 if (base_address == 0x00000000) {
783 /* Something's wrong here, ACPIBASE has to be set */ 895 /* Something's wrong here, ACPIBASE has to be set */
784 printk(KERN_ERR PFX "failed to get TCOBASE address\n"); 896 printk(KERN_ERR PFX "failed to get TCOBASE address, "
785 pci_dev_put(pdev); 897 "device disabled by hardware/BIOS\n");
786 return -ENODEV; 898 return -ENODEV;
787 } 899 }
788 iTCO_wdt_private.iTCO_version = 900 iTCO_wdt_private.iTCO_version =
@@ -797,7 +909,8 @@ static int __devinit iTCO_wdt_init(struct pci_dev *pdev,
797 if (iTCO_wdt_private.iTCO_version == 2) { 909 if (iTCO_wdt_private.iTCO_version == 2) {
798 pci_read_config_dword(pdev, 0xf0, &base_address); 910 pci_read_config_dword(pdev, 0xf0, &base_address);
799 if ((base_address & 1) == 0) { 911 if ((base_address & 1) == 0) {
800 printk(KERN_ERR PFX "RCBA is disabled by hardware\n"); 912 printk(KERN_ERR PFX "RCBA is disabled by hardware"
913 "/BIOS, device disabled\n");
801 ret = -ENODEV; 914 ret = -ENODEV;
802 goto out; 915 goto out;
803 } 916 }
@@ -808,7 +921,7 @@ static int __devinit iTCO_wdt_init(struct pci_dev *pdev,
808 /* Check chipset's NO_REBOOT bit */ 921 /* Check chipset's NO_REBOOT bit */
809 if (iTCO_wdt_unset_NO_REBOOT_bit() && iTCO_vendor_check_noreboot_on()) { 922 if (iTCO_wdt_unset_NO_REBOOT_bit() && iTCO_vendor_check_noreboot_on()) {
810 printk(KERN_INFO PFX "unable to reset NO_REBOOT flag, " 923 printk(KERN_INFO PFX "unable to reset NO_REBOOT flag, "
811 "platform may have disabled it\n"); 924 "device disabled by hardware/BIOS\n");
812 ret = -ENODEV; /* Cannot reset NO_REBOOT bit */ 925 ret = -ENODEV; /* Cannot reset NO_REBOOT bit */
813 goto out_unmap; 926 goto out_unmap;
814 } 927 }
@@ -819,7 +932,8 @@ static int __devinit iTCO_wdt_init(struct pci_dev *pdev,
819 /* The TCO logic uses the TCO_EN bit in the SMI_EN register */ 932 /* The TCO logic uses the TCO_EN bit in the SMI_EN register */
820 if (!request_region(SMI_EN, 4, "iTCO_wdt")) { 933 if (!request_region(SMI_EN, 4, "iTCO_wdt")) {
821 printk(KERN_ERR PFX 934 printk(KERN_ERR PFX
822 "I/O address 0x%04lx already in use\n", SMI_EN); 935 "I/O address 0x%04lx already in use, "
936 "device disabled\n", SMI_EN);
823 ret = -EIO; 937 ret = -EIO;
824 goto out_unmap; 938 goto out_unmap;
825 } 939 }
@@ -831,8 +945,8 @@ static int __devinit iTCO_wdt_init(struct pci_dev *pdev,
831 /* The TCO I/O registers reside in a 32-byte range pointed to 945 /* The TCO I/O registers reside in a 32-byte range pointed to
832 by the TCOBASE value */ 946 by the TCOBASE value */
833 if (!request_region(TCOBASE, 0x20, "iTCO_wdt")) { 947 if (!request_region(TCOBASE, 0x20, "iTCO_wdt")) {
834 printk(KERN_ERR PFX "I/O address 0x%04lx already in use\n", 948 printk(KERN_ERR PFX "I/O address 0x%04lx already in use "
835 TCOBASE); 949 "device disabled\n", TCOBASE);
836 ret = -EIO; 950 ret = -EIO;
837 goto unreg_smi_en; 951 goto unreg_smi_en;
838 } 952 }
@@ -880,7 +994,6 @@ out_unmap:
880 if (iTCO_wdt_private.iTCO_version == 2) 994 if (iTCO_wdt_private.iTCO_version == 2)
881 iounmap(iTCO_wdt_private.gcs); 995 iounmap(iTCO_wdt_private.gcs);
882out: 996out:
883 pci_dev_put(iTCO_wdt_private.pdev);
884 iTCO_wdt_private.ACPIBASE = 0; 997 iTCO_wdt_private.ACPIBASE = 0;
885 return ret; 998 return ret;
886} 999}
@@ -921,7 +1034,7 @@ static int __devinit iTCO_wdt_probe(struct platform_device *dev)
921 } 1034 }
922 1035
923 if (!found) 1036 if (!found)
924 printk(KERN_INFO PFX "No card detected\n"); 1037 printk(KERN_INFO PFX "No device detected.\n");
925 1038
926 return ret; 1039 return ret;
927} 1040}
generated by cgit v1.2.2 (git 2.25.0) at 2025-03-17 11:26:23 -0400