Merge git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog

* git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog:
  [WATCHDOG] hpwdt: Fix kdump when using hpwdt
  [WATCHDOG] hpwdt: set the mapped BIOS address space as executable
  [WATCHDOG] iTCO_wdt: add PCI ID's for ICH9 & ICH10 chipsets
  [WATCHDOG] iTCO_wdt : correct status clearing
  [WATCHDOG] iTCO_wdt : problem with rebooting on new ICH9 based motherboards
  [WATCHDOG] fix mtx1_wdt compilation failure

1 files changed, 104 insertions, 60 deletions

diff --git a/drivers/watchdog/iTCO_wdt.c b/drivers/watchdog/iTCO_wdt.c
index bfb93bc2ca9f..26173a270e94 100644
--- a/drivers/watchdog/iTCO_wdt.c
+++ b/drivers/watchdog/iTCO_wdt.c
@@ -1,7 +1,7 @@
 /*
  *	intel TCO Watchdog Driver (Used in i82801 and i6300ESB chipsets)
  *
- *	(c) Copyright 2006-2007 Wim Van Sebroeck <wim@iguana.be>.
+ *	(c) Copyright 2006-2008 Wim Van Sebroeck <wim@iguana.be>.
  *
  *	This program is free software; you can redistribute it and/or
  *	modify it under the terms of the GNU General Public License
@@ -20,34 +20,41 @@
  *	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, 290745-020,
- *	82801DBM (ICH4-M)    : document number 252337-001, 252663-005,
+ *	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, 252517-003,
- *	82801ER  (ICH5R)     : document number 252516-001, 252517-003,
- *	82801FB  (ICH6)      : document number 301473-002, 301474-007,
- *	82801FR  (ICH6R)     : document number 301473-002, 301474-007,
- *	82801FBM (ICH6-M)    : document number 301473-002, 301474-007,
- *	82801FW  (ICH6W)     : document number 301473-001, 301474-007,
- *	82801FRW (ICH6RW)    : document number 301473-001, 301474-007,
- *	82801GB  (ICH7)      : document number 307013-002, 307014-009,
- *	82801GR  (ICH7R)     : document number 307013-002, 307014-009,
- *	82801GDH (ICH7DH)    : document number 307013-002, 307014-009,
- *	82801GBM (ICH7-M)    : document number 307013-002, 307014-009,
- *	82801GHM (ICH7-M DH) : document number 307013-002, 307014-009,
- *	82801HB  (ICH8)      : document number 313056-003, 313057-009,
- *	82801HR  (ICH8R)     : document number 313056-003, 313057-009,
- *	82801HBM (ICH8M)     : document number 313056-003, 313057-009,
- *	82801HH  (ICH8DH)    : document number 313056-003, 313057-009,
- *	82801HO  (ICH8DO)    : document number 313056-003, 313057-009,
- *	82801HEM (ICH8M-E)   : document number 313056-003, 313057-009,
- *	82801IB  (ICH9)      : document number 316972-001, 316973-006,
- *	82801IR  (ICH9R)     : document number 316972-001, 316973-006,
- *	82801IH  (ICH9DH)    : document number 316972-001, 316973-006,
- *	82801IO  (ICH9DO)    : document number 316972-001, 316973-006,
- *	6300ESB  (6300ESB)   : document number 300641-003, 300884-010,
- *	631xESB  (631xESB)   : document number 313082-001, 313075-005,
- *	632xESB  (632xESB)   : document number 313082-001, 313075-005
+ *	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
  */
 
 /*
@@ -56,8 +63,7 @@
 
 /* Module and version information */
 #define DRV_NAME	"iTCO_wdt"
-#define DRV_VERSION	"1.03"
-#define DRV_RELDATE	"30-Apr-2008"
+#define DRV_VERSION	"1.04"
 #define PFX		DRV_NAME ": "
 
 /* Includes */
@@ -96,19 +102,26 @@ enum iTCO_chipsets {
 	TCO_ICH6,	/* ICH6 & ICH6R */
 	TCO_ICH6M,	/* ICH6-M */
 	TCO_ICH6W,	/* ICH6W & ICH6RW */
+	TCO_631XESB,	/* 631xESB/632xESB */
 	TCO_ICH7,	/* ICH7 & ICH7R */
-	TCO_ICH7M,	/* ICH7-M */
+	TCO_ICH7DH,	/* ICH7DH */
+	TCO_ICH7M,	/* ICH7-M & ICH7-U */
 	TCO_ICH7MDH,	/* ICH7-M DH */
 	TCO_ICH8,	/* ICH8 & ICH8R */
-	TCO_ICH8ME,	/* ICH8M-E */
 	TCO_ICH8DH,	/* ICH8DH */
 	TCO_ICH8DO,	/* ICH8DO */
 	TCO_ICH8M,	/* ICH8M */
+	TCO_ICH8ME,	/* ICH8M-E */
 	TCO_ICH9,	/* ICH9 */
 	TCO_ICH9R,	/* ICH9R */
 	TCO_ICH9DH,	/* ICH9DH */
 	TCO_ICH9DO,	/* ICH9DO */
-	TCO_631XESB,	/* 631xESB/632xESB */
+	TCO_ICH9M,	/* ICH9M */
+	TCO_ICH9ME,	/* ICH9M-E */
+	TCO_ICH10,	/* ICH10 */
+	TCO_ICH10R,	/* ICH10R */
+	TCO_ICH10D,	/* ICH10D */
+	TCO_ICH10DO,	/* ICH10DO */
 };
 
 static struct {
@@ -129,19 +142,26 @@ static struct {
 	{"ICH6 or ICH6R", 2},
 	{"ICH6-M", 2},
 	{"ICH6W or ICH6RW", 2},
+	{"631xESB/632xESB", 2},
 	{"ICH7 or ICH7R", 2},
-	{"ICH7-M", 2},
+	{"ICH7DH", 2},
+	{"ICH7-M or ICH7-U", 2},
 	{"ICH7-M DH", 2},
 	{"ICH8 or ICH8R", 2},
-	{"ICH8M-E", 2},
 	{"ICH8DH", 2},
 	{"ICH8DO", 2},
 	{"ICH8M", 2},
+	{"ICH8M-E", 2},
 	{"ICH9", 2},
 	{"ICH9R", 2},
 	{"ICH9DH", 2},
 	{"ICH9DO", 2},
-	{"631xESB/632xESB", 2},
+	{"ICH9M", 2},
+	{"ICH9M-E", 2},
+	{"ICH10", 2},
+	{"ICH10R", 2},
+	{"ICH10D", 2},
+	{"ICH10DO", 2},
 	{NULL, 0}
 };
 
@@ -175,18 +195,6 @@ static struct pci_device_id iTCO_wdt_pci_tbl[] = {
 	{ ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_ICH6_0,		TCO_ICH6)},
 	{ ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_ICH6_1,		TCO_ICH6M)},
 	{ ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_ICH6_2,		TCO_ICH6W)},
-	{ ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_ICH7_0,		TCO_ICH7)},
-	{ ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_ICH7_1,		TCO_ICH7M)},
-	{ ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_ICH7_31,		TCO_ICH7MDH)},
-	{ ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_ICH8_0,		TCO_ICH8)},
-	{ ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_ICH8_1,		TCO_ICH8ME)},
-	{ ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_ICH8_2,		TCO_ICH8DH)},
-	{ ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_ICH8_3,		TCO_ICH8DO)},
-	{ ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_ICH8_4,		TCO_ICH8M)},
-	{ ITCO_PCI_DEVICE(0x2918,				TCO_ICH9)},
-	{ ITCO_PCI_DEVICE(0x2916,				TCO_ICH9R)},
-	{ ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_ICH9_2,		TCO_ICH9DH)},
-	{ ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_ICH9_4,		TCO_ICH9DO)},
 	{ ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_ESB2_0,		TCO_631XESB)},
 	{ ITCO_PCI_DEVICE(0x2671,				TCO_631XESB)},
 	{ ITCO_PCI_DEVICE(0x2672,				TCO_631XESB)},
@@ -203,6 +211,25 @@ static struct pci_device_id iTCO_wdt_pci_tbl[] = {
 	{ ITCO_PCI_DEVICE(0x267d,				TCO_631XESB)},
 	{ ITCO_PCI_DEVICE(0x267e,				TCO_631XESB)},
 	{ ITCO_PCI_DEVICE(0x267f,				TCO_631XESB)},
+	{ ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_ICH7_0,		TCO_ICH7)},
+	{ ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_ICH7_30,		TCO_ICH7DH)},
+	{ ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_ICH7_1,		TCO_ICH7M)},
+	{ ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_ICH7_31,		TCO_ICH7MDH)},
+	{ ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_ICH8_0,		TCO_ICH8)},
+	{ ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_ICH8_2,		TCO_ICH8DH)},
+	{ ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_ICH8_3,		TCO_ICH8DO)},
+	{ ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_ICH8_4,		TCO_ICH8M)},
+	{ ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_ICH8_1,		TCO_ICH8ME)},
+	{ ITCO_PCI_DEVICE(0x2918,				TCO_ICH9)},
+	{ ITCO_PCI_DEVICE(0x2916,				TCO_ICH9R)},
+	{ ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_ICH9_2,		TCO_ICH9DH)},
+	{ ITCO_PCI_DEVICE(PCI_DEVICE_ID_INTEL_ICH9_4,		TCO_ICH9DO)},
+	{ ITCO_PCI_DEVICE(0x2919,				TCO_ICH9M)},
+	{ ITCO_PCI_DEVICE(0x2917,				TCO_ICH9ME)},
+	{ ITCO_PCI_DEVICE(0x3a18,				TCO_ICH10)},
+	{ ITCO_PCI_DEVICE(0x3a16,				TCO_ICH10R)},
+	{ ITCO_PCI_DEVICE(0x3a1a,				TCO_ICH10D)},
+	{ ITCO_PCI_DEVICE(0x3a14,				TCO_ICH10DO)},
 	{ 0, },			/* End of list */
 };
 MODULE_DEVICE_TABLE(pci, iTCO_wdt_pci_tbl);
@@ -311,6 +338,7 @@ static int iTCO_wdt_unset_NO_REBOOT_bit(void)
 static int iTCO_wdt_start(void)
 {
 	unsigned int val;
+	unsigned long val32;
 
 	spin_lock(&iTCO_wdt_private.io_lock);
 
@@ -323,6 +351,18 @@ static int iTCO_wdt_start(void)
 		return -EIO;
 	}
 
+	/* Bit 13: TCO_EN -> 0 = Disables TCO logic generating an SMI# */
+	val32 = inl(SMI_EN);
+	val32 &= 0xffffdfff;	/* Turn off SMI clearing watchdog */
+	outl(val32, SMI_EN);
+
+	/* Force the timer to its reload value by writing to the TCO_RLD
+	   register */
+	if (iTCO_wdt_private.iTCO_version == 2)
+		outw(0x01, TCO_RLD);
+	else if (iTCO_wdt_private.iTCO_version == 1)
+		outb(0x01, TCO_RLD);
+
 	/* Bit 11: TCO Timer Halt -> 0 = The TCO timer is enabled to count */
 	val = inw(TCO1_CNT);
 	val &= 0xf7ff;
@@ -338,6 +378,7 @@ static int iTCO_wdt_start(void)
 static int iTCO_wdt_stop(void)
 {
 	unsigned int val;
+	unsigned long val32;
 
 	spin_lock(&iTCO_wdt_private.io_lock);
 
@@ -349,6 +390,11 @@ static int iTCO_wdt_stop(void)
 	outw(val, TCO1_CNT);
 	val = inw(TCO1_CNT);
 
+	/* Bit 13: TCO_EN -> 1 = Enables the TCO logic to generate SMI# */
+	val32 = inl(SMI_EN);
+	val32 &= 0x00002000;
+	outl(val32, SMI_EN);
+
 	/* Set the NO_REBOOT bit to prevent later reboots, just for sure */
 	iTCO_wdt_set_NO_REBOOT_bit();
 
@@ -459,7 +505,6 @@ static int iTCO_wdt_open(struct inode *inode, struct file *file)
 	/*
 	 *      Reload and activate timer
 	 */
-	iTCO_wdt_keepalive();
 	iTCO_wdt_start();
 	return nonseekable_open(inode, file);
 }
@@ -604,7 +649,6 @@ static int __devinit iTCO_wdt_init(struct pci_dev *pdev,
 	int ret;
 	u32 base_address;
 	unsigned long RCBA;
-	unsigned long val32;
 
 	/*
 	 *      Find the ACPI/PM base I/O address which is the base
@@ -644,17 +688,13 @@ static int __devinit iTCO_wdt_init(struct pci_dev *pdev,
 	/* Set the NO_REBOOT bit to prevent later reboots, just for sure */
 	iTCO_wdt_set_NO_REBOOT_bit();
 
-	/* Set the TCO_EN bit in SMI_EN register */
+	/* The TCO logic uses the TCO_EN bit in the SMI_EN register */
 	if (!request_region(SMI_EN, 4, "iTCO_wdt")) {
 		printk(KERN_ERR PFX
 			"I/O address 0x%04lx already in use\n", SMI_EN);
 		ret = -EIO;
 		goto out;
 	}
-	val32 = inl(SMI_EN);
-	val32 &= 0xffffdfff;	/* Turn off SMI clearing watchdog */
-	outl(val32, SMI_EN);
-	release_region(SMI_EN, 4);
 
 	/* The TCO I/O registers reside in a 32-byte range pointed to
 	   by the TCOBASE value */
@@ -662,7 +702,7 @@ static int __devinit iTCO_wdt_init(struct pci_dev *pdev,
 		printk(KERN_ERR PFX "I/O address 0x%04lx already in use\n",
 			TCOBASE);
 		ret = -EIO;
-		goto out;
+		goto unreg_smi_en;
 	}
 
 	printk(KERN_INFO PFX
@@ -672,8 +712,9 @@ static int __devinit iTCO_wdt_init(struct pci_dev *pdev,
 			TCOBASE);
 
 	/* Clear out the (probably old) status */
-	outb(0, TCO1_STS);
-	outb(3, TCO2_STS);
+	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 */
 
 	/* Make sure the watchdog is not running */
 	iTCO_wdt_stop();
@@ -701,6 +742,8 @@ static int __devinit iTCO_wdt_init(struct pci_dev *pdev,
 
 unreg_region:
 	release_region(TCOBASE, 0x20);
+unreg_smi_en:
+	release_region(SMI_EN, 4);
 out:
 	if (iTCO_wdt_private.iTCO_version == 2)
 		iounmap(iTCO_wdt_private.gcs);
@@ -718,6 +761,7 @@ static void __devexit iTCO_wdt_cleanup(void)
 	/* Deregister */
 	misc_deregister(&iTCO_wdt_miscdev);
 	release_region(TCOBASE, 0x20);
+	release_region(SMI_EN, 4);
 	if (iTCO_wdt_private.iTCO_version == 2)
 		iounmap(iTCO_wdt_private.gcs);
 	pci_dev_put(iTCO_wdt_private.pdev);
@@ -782,8 +826,8 @@ static int __init iTCO_wdt_init_module(void)
 {
 	int err;
 
-	printk(KERN_INFO PFX "Intel TCO WatchDog Timer Driver v%s (%s)\n",
-		DRV_VERSION, DRV_RELDATE);
+	printk(KERN_INFO PFX "Intel TCO WatchDog Timer Driver v%s\n",
+		DRV_VERSION);
 
 	err = platform_driver_register(&iTCO_wdt_driver);
 	if (err)