/*
- * intel TCO Watchdog Driver (Used in i82801 and i63xxESB chipsets)
+ * intel TCO Watchdog Driver
*
* (c) Copyright 2006-2009 Wim Van Sebroeck <wim@iguana.be>.
*
*
* The TCO watchdog is implemented in the following I/O controller hubs:
* (See the intel documentation on http://developer.intel.com.)
- * 82801AA (ICH) : document number 290655-003, 290677-014,
- * 82801AB (ICHO) : document number 290655-003, 290677-014,
- * 82801BA (ICH2) : document number 290687-002, 298242-027,
- * 82801BAM (ICH2-M) : document number 290687-002, 298242-027,
- * 82801CA (ICH3-S) : document number 290733-003, 290739-013,
- * 82801CAM (ICH3-M) : document number 290716-001, 290718-007,
- * 82801DB (ICH4) : document number 290744-001, 290745-025,
- * 82801DBM (ICH4-M) : document number 252337-001, 252663-008,
- * 82801E (C-ICH) : document number 273599-001, 273645-002,
- * 82801EB (ICH5) : document number 252516-001, 252517-028,
- * 82801ER (ICH5R) : document number 252516-001, 252517-028,
- * 6300ESB (6300ESB) : document number 300641-004, 300884-013,
- * 82801FB (ICH6) : document number 301473-002, 301474-026,
- * 82801FR (ICH6R) : document number 301473-002, 301474-026,
- * 82801FBM (ICH6-M) : document number 301473-002, 301474-026,
- * 82801FW (ICH6W) : document number 301473-001, 301474-026,
- * 82801FRW (ICH6RW) : document number 301473-001, 301474-026,
- * 631xESB (631xESB) : document number 313082-001, 313075-006,
- * 632xESB (632xESB) : document number 313082-001, 313075-006,
- * 82801GB (ICH7) : document number 307013-003, 307014-024,
- * 82801GR (ICH7R) : document number 307013-003, 307014-024,
- * 82801GDH (ICH7DH) : document number 307013-003, 307014-024,
- * 82801GBM (ICH7-M) : document number 307013-003, 307014-024,
- * 82801GHM (ICH7-M DH) : document number 307013-003, 307014-024,
- * 82801GU (ICH7-U) : document number 307013-003, 307014-024,
- * 82801HB (ICH8) : document number 313056-003, 313057-017,
- * 82801HR (ICH8R) : document number 313056-003, 313057-017,
- * 82801HBM (ICH8M) : document number 313056-003, 313057-017,
- * 82801HH (ICH8DH) : document number 313056-003, 313057-017,
- * 82801HO (ICH8DO) : document number 313056-003, 313057-017,
- * 82801HEM (ICH8M-E) : document number 313056-003, 313057-017,
- * 82801IB (ICH9) : document number 316972-004, 316973-012,
- * 82801IR (ICH9R) : document number 316972-004, 316973-012,
- * 82801IH (ICH9DH) : document number 316972-004, 316973-012,
- * 82801IO (ICH9DO) : document number 316972-004, 316973-012,
- * 82801IBM (ICH9M) : document number 316972-004, 316973-012,
- * 82801IEM (ICH9M-E) : document number 316972-004, 316973-012,
- * 82801JIB (ICH10) : document number 319973-002, 319974-002,
- * 82801JIR (ICH10R) : document number 319973-002, 319974-002,
- * 82801JD (ICH10D) : document number 319973-002, 319974-002,
- * 82801JDO (ICH10DO) : document number 319973-002, 319974-002,
- * 5 Series (PCH) : document number 322169-001, 322170-001,
- * 3400 Series (PCH) : document number 322169-001, 322170-001
+ * document number 290655-003, 290677-014: 82801AA (ICH), 82801AB (ICHO)
+ * document number 290687-002, 298242-027: 82801BA (ICH2)
+ * document number 290733-003, 290739-013: 82801CA (ICH3-S)
+ * document number 290716-001, 290718-007: 82801CAM (ICH3-M)
+ * document number 290744-001, 290745-025: 82801DB (ICH4)
+ * document number 252337-001, 252663-008: 82801DBM (ICH4-M)
+ * document number 273599-001, 273645-002: 82801E (C-ICH)
+ * document number 252516-001, 252517-028: 82801EB (ICH5), 82801ER (ICH5R)
+ * document number 300641-004, 300884-013: 6300ESB
+ * document number 301473-002, 301474-026: 82801F (ICH6)
+ * document number 313082-001, 313075-006: 631xESB, 632xESB
+ * document number 307013-003, 307014-024: 82801G (ICH7)
+ * document number 313056-003, 313057-017: 82801H (ICH8)
+ * document number 316972-004, 316973-012: 82801I (ICH9)
+ * document number 319973-002, 319974-002: 82801J (ICH10)
+ * document number 322169-001, 322170-003: 5 Series, 3400 Series (PCH)
+ * document number 320066-003, 320257-008: EP80597 (IICH)
+ * document number TBD : Cougar Point (CPT)
*/
/*
/* Module and version information */
#define DRV_NAME "iTCO_wdt"
-#define DRV_VERSION "1.05"
+#define DRV_VERSION "1.06"
#define PFX DRV_NAME ": "
/* Includes */
TCO_ICH10DO, /* ICH10DO */
TCO_PCH, /* PCH Desktop Full Featured */
TCO_PCHM, /* PCH Mobile Full Featured */
+ TCO_P55, /* P55 */
+ TCO_PM55, /* PM55 */
+ TCO_H55, /* H55 */
+ TCO_QM57, /* QM57 */
+ TCO_H57, /* H57 */
+ TCO_HM55, /* HM55 */
+ TCO_Q57, /* Q57 */
+ TCO_HM57, /* HM57 */
TCO_PCHMSFF, /* PCH Mobile SFF Full Featured */
+ TCO_QS57, /* QS57 */
+ TCO_3400, /* 3400 */
+ TCO_3420, /* 3420 */
+ TCO_3450, /* 3450 */
+ TCO_EP80579, /* EP80579 */
+ TCO_CPT1, /* Cougar Point */
+ TCO_CPT2, /* Cougar Point Desktop */
+ TCO_CPT3, /* Cougar Point Mobile */
+ TCO_CPT4, /* Cougar Point */
+ TCO_CPT5, /* Cougar Point */
+ TCO_CPT6, /* Cougar Point */
+ TCO_CPT7, /* Cougar Point */
+ TCO_CPT8, /* Cougar Point */
+ TCO_CPT9, /* Cougar Point */
+ TCO_CPT10, /* Cougar Point */
+ TCO_CPT11, /* Cougar Point */
+ TCO_CPT12, /* Cougar Point */
+ TCO_CPT13, /* Cougar Point */
+ TCO_CPT14, /* Cougar Point */
+ TCO_CPT15, /* Cougar Point */
+ TCO_CPT16, /* Cougar Point */
+ TCO_CPT17, /* Cougar Point */
+ TCO_CPT18, /* Cougar Point */
+ TCO_CPT19, /* Cougar Point */
+ TCO_CPT20, /* Cougar Point */
+ TCO_CPT21, /* Cougar Point */
+ TCO_CPT22, /* Cougar Point */
+ TCO_CPT23, /* Cougar Point */
+ TCO_CPT24, /* Cougar Point */
+ TCO_CPT25, /* Cougar Point */
+ TCO_CPT26, /* Cougar Point */
+ TCO_CPT27, /* Cougar Point */
+ TCO_CPT28, /* Cougar Point */
+ TCO_CPT29, /* Cougar Point */
+ TCO_CPT30, /* Cougar Point */
+ TCO_CPT31, /* Cougar Point */
};
static struct {
{"ICH10DO", 2},
{"PCH Desktop Full Featured", 2},
{"PCH Mobile Full Featured", 2},
+ {"P55", 2},
+ {"PM55", 2},
+ {"H55", 2},
+ {"QM57", 2},
+ {"H57", 2},
+ {"HM55", 2},
+ {"Q57", 2},
+ {"HM57", 2},
{"PCH Mobile SFF Full Featured", 2},
+ {"QS57", 2},
+ {"3400", 2},
+ {"3420", 2},
+ {"3450", 2},
+ {"EP80579", 2},
+ {"Cougar Point", 2},
+ {"Cougar Point", 2},
+ {"Cougar Point", 2},
+ {"Cougar Point", 2},
+ {"Cougar Point", 2},
+ {"Cougar Point", 2},
+ {"Cougar Point", 2},
+ {"Cougar Point", 2},
+ {"Cougar Point", 2},
+ {"Cougar Point", 2},
+ {"Cougar Point", 2},
+ {"Cougar Point", 2},
+ {"Cougar Point", 2},
+ {"Cougar Point", 2},
+ {"Cougar Point", 2},
+ {"Cougar Point", 2},
+ {"Cougar Point", 2},
+ {"Cougar Point", 2},
+ {"Cougar Point", 2},
+ {"Cougar Point", 2},
+ {"Cougar Point", 2},
+ {"Cougar Point", 2},
+ {"Cougar Point", 2},
+ {"Cougar Point", 2},
+ {"Cougar Point", 2},
+ {"Cougar Point", 2},
+ {"Cougar Point", 2},
+ {"Cougar Point", 2},
+ {"Cougar Point", 2},
+ {"Cougar Point", 2},
+ {"Cougar Point", 2},
{NULL, 0}
};
{ ITCO_PCI_DEVICE(0x3a14, TCO_ICH10DO)},
{ ITCO_PCI_DEVICE(0x3b00, TCO_PCH)},
{ ITCO_PCI_DEVICE(0x3b01, TCO_PCHM)},
+ { ITCO_PCI_DEVICE(0x3b02, TCO_P55)},
+ { ITCO_PCI_DEVICE(0x3b03, TCO_PM55)},
+ { ITCO_PCI_DEVICE(0x3b06, TCO_H55)},
+ { ITCO_PCI_DEVICE(0x3b07, TCO_QM57)},
+ { ITCO_PCI_DEVICE(0x3b08, TCO_H57)},
+ { ITCO_PCI_DEVICE(0x3b09, TCO_HM55)},
+ { ITCO_PCI_DEVICE(0x3b0a, TCO_Q57)},
+ { ITCO_PCI_DEVICE(0x3b0b, TCO_HM57)},
{ ITCO_PCI_DEVICE(0x3b0d, TCO_PCHMSFF)},
+ { ITCO_PCI_DEVICE(0x3b0f, TCO_QS57)},
+ { ITCO_PCI_DEVICE(0x3b12, TCO_3400)},
+ { ITCO_PCI_DEVICE(0x3b14, TCO_3420)},
+ { ITCO_PCI_DEVICE(0x3b16, TCO_3450)},
+ { ITCO_PCI_DEVICE(0x5031, TCO_EP80579)},
+ { ITCO_PCI_DEVICE(0x1c41, TCO_CPT1)},
+ { ITCO_PCI_DEVICE(0x1c42, TCO_CPT2)},
+ { ITCO_PCI_DEVICE(0x1c43, TCO_CPT3)},
+ { ITCO_PCI_DEVICE(0x1c44, TCO_CPT4)},
+ { ITCO_PCI_DEVICE(0x1c45, TCO_CPT5)},
+ { ITCO_PCI_DEVICE(0x1c46, TCO_CPT6)},
+ { ITCO_PCI_DEVICE(0x1c47, TCO_CPT7)},
+ { ITCO_PCI_DEVICE(0x1c48, TCO_CPT8)},
+ { ITCO_PCI_DEVICE(0x1c49, TCO_CPT9)},
+ { ITCO_PCI_DEVICE(0x1c4a, TCO_CPT10)},
+ { ITCO_PCI_DEVICE(0x1c4b, TCO_CPT11)},
+ { ITCO_PCI_DEVICE(0x1c4c, TCO_CPT12)},
+ { ITCO_PCI_DEVICE(0x1c4d, TCO_CPT13)},
+ { ITCO_PCI_DEVICE(0x1c4e, TCO_CPT14)},
+ { ITCO_PCI_DEVICE(0x1c4f, TCO_CPT15)},
+ { ITCO_PCI_DEVICE(0x1c50, TCO_CPT16)},
+ { ITCO_PCI_DEVICE(0x1c51, TCO_CPT17)},
+ { ITCO_PCI_DEVICE(0x1c52, TCO_CPT18)},
+ { ITCO_PCI_DEVICE(0x1c53, TCO_CPT19)},
+ { ITCO_PCI_DEVICE(0x1c54, TCO_CPT20)},
+ { ITCO_PCI_DEVICE(0x1c55, TCO_CPT21)},
+ { ITCO_PCI_DEVICE(0x1c56, TCO_CPT22)},
+ { ITCO_PCI_DEVICE(0x1c57, TCO_CPT23)},
+ { ITCO_PCI_DEVICE(0x1c58, TCO_CPT24)},
+ { ITCO_PCI_DEVICE(0x1c59, TCO_CPT25)},
+ { ITCO_PCI_DEVICE(0x1c5a, TCO_CPT26)},
+ { ITCO_PCI_DEVICE(0x1c5b, TCO_CPT27)},
+ { ITCO_PCI_DEVICE(0x1c5c, TCO_CPT28)},
+ { ITCO_PCI_DEVICE(0x1c5d, TCO_CPT29)},
+ { ITCO_PCI_DEVICE(0x1c5e, TCO_CPT30)},
+ { ITCO_PCI_DEVICE(0x1c5f, TCO_CPT31)},
{ 0, }, /* End of list */
};
MODULE_DEVICE_TABLE(pci, iTCO_wdt_pci_tbl);
#define WATCHDOG_HEARTBEAT 30 /* 30 sec default heartbeat */
static int heartbeat = WATCHDOG_HEARTBEAT; /* in seconds */
module_param(heartbeat, int, 0);
-MODULE_PARM_DESC(heartbeat, "Watchdog heartbeat in seconds. "
- "(2<heartbeat<39 (TCO v1) or 613 (TCO v2), default="
+MODULE_PARM_DESC(heartbeat, "Watchdog timeout in seconds. "
+ "5..76 (TCO v1) or 3..614 (TCO v2), default="
__MODULE_STRING(WATCHDOG_HEARTBEAT) ")");
static int nowayout = WATCHDOG_NOWAYOUT;
/* Reload the timer by writing to the TCO Timer Counter register */
if (iTCO_wdt_private.iTCO_version == 2)
outw(0x01, TCO_RLD);
- else if (iTCO_wdt_private.iTCO_version == 1)
+ else if (iTCO_wdt_private.iTCO_version == 1) {
+ /* Reset the timeout status bit so that the timer
+ * needs to count down twice again before rebooting */
+ outw(0x0008, TCO1_STS); /* write 1 to clear bit */
+
outb(0x01, TCO_RLD);
+ }
spin_unlock(&iTCO_wdt_private.io_lock);
return 0;
unsigned int tmrval;
tmrval = seconds_to_ticks(t);
+
+ /* For TCO v1 the timer counts down twice before rebooting */
+ if (iTCO_wdt_private.iTCO_version == 1)
+ tmrval /= 2;
+
/* from the specs: */
/* "Values of 0h-3h are ignored and should not be attempted" */
if (tmrval < 0x04)
spin_lock(&iTCO_wdt_private.io_lock);
val8 = inb(TCO_RLD);
val8 &= 0x3f;
+ if (!(inw(TCO1_STS) & 0x0008))
+ val8 += (inb(TCOv1_TMR) & 0x3f);
spin_unlock(&iTCO_wdt_private.io_lock);
*time_left = (val8 * 6) / 10;
int new_heartbeat;
void __user *argp = (void __user *)arg;
int __user *p = argp;
- static struct watchdog_info ident = {
+ static const struct watchdog_info ident = {
.options = WDIOF_SETTIMEOUT |
WDIOF_KEEPALIVEPING |
WDIOF_MAGICCLOSE,
if (iTCO_wdt_private.iTCO_version == 2) {
pci_read_config_dword(pdev, 0xf0, &base_address);
if ((base_address & 1) == 0) {
- printk(KERN_ERR PFX "RCBA is disabled by harddware\n");
+ printk(KERN_ERR PFX "RCBA is disabled by hardware\n");
ret = -ENODEV;
goto out;
}
/* Check chipset's NO_REBOOT bit */
if (iTCO_wdt_unset_NO_REBOOT_bit() && iTCO_vendor_check_noreboot_on()) {
- printk(KERN_ERR PFX "failed to reset NO_REBOOT flag, "
- "reboot disabled by hardware\n");
+ printk(KERN_INFO PFX "unable to reset NO_REBOOT flag, "
+ "platform may have disabled it\n");
ret = -ENODEV; /* Cannot reset NO_REBOOT bit */
goto out_unmap;
}
TCOBASE);
/* Clear out the (probably old) status */
- outb(8, TCO1_STS); /* Clear the Time Out Status bit */
- outb(2, TCO2_STS); /* Clear SECOND_TO_STS bit */
- outb(4, TCO2_STS); /* Clear BOOT_STS bit */
+ outw(0x0008, TCO1_STS); /* Clear the Time Out Status bit */
+ outw(0x0002, TCO2_STS); /* Clear SECOND_TO_STS bit */
+ outw(0x0004, TCO2_STS); /* Clear BOOT_STS bit */
/* Make sure the watchdog is not running */
iTCO_wdt_stop();
if (iTCO_wdt_set_heartbeat(heartbeat)) {
iTCO_wdt_set_heartbeat(WATCHDOG_HEARTBEAT);
printk(KERN_INFO PFX
- "heartbeat value must be 2 < heartbeat < 39 (TCO v1) "
- "or 613 (TCO v2), using %d\n", heartbeat);
+ "timeout value out of range, using %d\n", heartbeat);
}
ret = misc_register(&iTCO_wdt_miscdev);
static int __devinit iTCO_wdt_probe(struct platform_device *dev)
{
+ int ret = -ENODEV;
int found = 0;
struct pci_dev *pdev = NULL;
const struct pci_device_id *ent;
for_each_pci_dev(pdev) {
ent = pci_match_id(iTCO_wdt_pci_tbl, pdev);
if (ent) {
- if (!(iTCO_wdt_init(pdev, ent, dev))) {
- found++;
+ found++;
+ ret = iTCO_wdt_init(pdev, ent, dev);
+ if (!ret)
break;
- }
}
}
- if (!found) {
+ if (!found)
printk(KERN_INFO PFX "No card detected\n");
- return -ENODEV;
- }
- return 0;
+ return ret;
}
static int __devexit iTCO_wdt_remove(struct platform_device *dev)
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff