aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/watchdog
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/watchdog')
-rw-r--r--drivers/watchdog/at91sam9_wdt.c22
-rw-r--r--drivers/watchdog/at91sam9_wdt.h6
-rw-r--r--drivers/watchdog/coh901327_wdt.c6
-rw-r--r--drivers/watchdog/hpwdt.c5
-rw-r--r--drivers/watchdog/iTCO_wdt.c6
-rw-r--r--drivers/watchdog/sp805_wdt.c2
6 files changed, 34 insertions, 13 deletions
diff --git a/drivers/watchdog/at91sam9_wdt.c b/drivers/watchdog/at91sam9_wdt.c
index 87445b2..0056256 100644
--- a/drivers/watchdog/at91sam9_wdt.c
+++ b/drivers/watchdog/at91sam9_wdt.c
@@ -35,6 +35,11 @@
#define DRV_NAME "AT91SAM9 Watchdog"
+#define wdt_read(field) \
+ __raw_readl(at91wdt_private.base + field)
+#define wdt_write(field, val) \
+ __raw_writel((val), at91wdt_private.base + field)
+
/* AT91SAM9 watchdog runs a 12bit counter @ 256Hz,
* use this to convert a watchdog
* value from/to milliseconds.
@@ -63,6 +68,7 @@ MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started "
static void at91_ping(unsigned long data);
static struct {
+ void __iomem *base;
unsigned long next_heartbeat; /* the next_heartbeat for the timer */
unsigned long open;
char expect_close;
@@ -77,7 +83,7 @@ static struct {
*/
static inline void at91_wdt_reset(void)
{
- at91_sys_write(AT91_WDT_CR, AT91_WDT_KEY | AT91_WDT_WDRSTT);
+ wdt_write(AT91_WDT_CR, AT91_WDT_KEY | AT91_WDT_WDRSTT);
}
/*
@@ -132,7 +138,7 @@ static int at91_wdt_settimeout(unsigned int timeout)
unsigned int mr;
/* Check if disabled */
- mr = at91_sys_read(AT91_WDT_MR);
+ mr = wdt_read(AT91_WDT_MR);
if (mr & AT91_WDT_WDDIS) {
printk(KERN_ERR DRV_NAME": sorry, watchdog is disabled\n");
return -EIO;
@@ -149,7 +155,7 @@ static int at91_wdt_settimeout(unsigned int timeout)
| AT91_WDT_WDDBGHLT /* disabled in debug mode */
| AT91_WDT_WDD /* restart at any time */
| (timeout & AT91_WDT_WDV); /* timer value */
- at91_sys_write(AT91_WDT_MR, reg);
+ wdt_write(AT91_WDT_MR, reg);
return 0;
}
@@ -248,12 +254,22 @@ static struct miscdevice at91wdt_miscdev = {
static int __init at91wdt_probe(struct platform_device *pdev)
{
+ struct resource *r;
int res;
if (at91wdt_miscdev.parent)
return -EBUSY;
at91wdt_miscdev.parent = &pdev->dev;
+ r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!r)
+ return -ENODEV;
+ at91wdt_private.base = ioremap(r->start, resource_size(r));
+ if (!at91wdt_private.base) {
+ dev_err(&pdev->dev, "failed to map registers, aborting.\n");
+ return -ENOMEM;
+ }
+
/* Set watchdog */
res = at91_wdt_settimeout(ms_to_ticks(WDT_HW_TIMEOUT * 1000));
if (res)
diff --git a/drivers/watchdog/at91sam9_wdt.h b/drivers/watchdog/at91sam9_wdt.h
index 757f9ca..c6fbb2e6 100644
--- a/drivers/watchdog/at91sam9_wdt.h
+++ b/drivers/watchdog/at91sam9_wdt.h
@@ -16,11 +16,11 @@
#ifndef AT91_WDT_H
#define AT91_WDT_H
-#define AT91_WDT_CR (AT91_WDT + 0x00) /* Watchdog Control Register */
+#define AT91_WDT_CR 0x00 /* Watchdog Control Register */
#define AT91_WDT_WDRSTT (1 << 0) /* Restart */
#define AT91_WDT_KEY (0xa5 << 24) /* KEY Password */
-#define AT91_WDT_MR (AT91_WDT + 0x04) /* Watchdog Mode Register */
+#define AT91_WDT_MR 0x04 /* Watchdog Mode Register */
#define AT91_WDT_WDV (0xfff << 0) /* Counter Value */
#define AT91_WDT_WDFIEN (1 << 12) /* Fault Interrupt Enable */
#define AT91_WDT_WDRSTEN (1 << 13) /* Reset Processor */
@@ -30,7 +30,7 @@
#define AT91_WDT_WDDBGHLT (1 << 28) /* Debug Halt */
#define AT91_WDT_WDIDLEHLT (1 << 29) /* Idle Halt */
-#define AT91_WDT_SR (AT91_WDT + 0x08) /* Watchdog Status Register */
+#define AT91_WDT_SR 0x08 /* Watchdog Status Register */
#define AT91_WDT_WDUNF (1 << 0) /* Watchdog Underflow */
#define AT91_WDT_WDERR (1 << 1) /* Watchdog Error */
diff --git a/drivers/watchdog/coh901327_wdt.c b/drivers/watchdog/coh901327_wdt.c
index 03f449a..5b89f7d 100644
--- a/drivers/watchdog/coh901327_wdt.c
+++ b/drivers/watchdog/coh901327_wdt.c
@@ -76,8 +76,6 @@ static int irq;
static void __iomem *virtbase;
static unsigned long coh901327_users;
static unsigned long boot_status;
-static u16 wdogenablestore;
-static u16 irqmaskstore;
static struct device *parent;
/*
@@ -461,6 +459,10 @@ out:
}
#ifdef CONFIG_PM
+
+static u16 wdogenablestore;
+static u16 irqmaskstore;
+
static int coh901327_suspend(struct platform_device *pdev, pm_message_t state)
{
irqmaskstore = readw(virtbase + U300_WDOG_IMR) & 0x0001U;
diff --git a/drivers/watchdog/hpwdt.c b/drivers/watchdog/hpwdt.c
index 3774c9b..8464ea1 100644
--- a/drivers/watchdog/hpwdt.c
+++ b/drivers/watchdog/hpwdt.c
@@ -231,6 +231,7 @@ static int __devinit cru_detect(unsigned long map_entry,
cmn_regs.u1.reax = CRU_BIOS_SIGNATURE_VALUE;
+ set_memory_x((unsigned long)bios32_entrypoint, (2 * PAGE_SIZE));
asminline_call(&cmn_regs, bios32_entrypoint);
if (cmn_regs.u1.ral != 0) {
@@ -248,8 +249,10 @@ static int __devinit cru_detect(unsigned long map_entry,
if ((physical_bios_base + physical_bios_offset)) {
cru_rom_addr =
ioremap(cru_physical_address, cru_length);
- if (cru_rom_addr)
+ if (cru_rom_addr) {
+ set_memory_x((unsigned long)cru_rom_addr, cru_length);
retval = 0;
+ }
}
printk(KERN_DEBUG "hpwdt: CRU Base Address: 0x%lx\n",
diff --git a/drivers/watchdog/iTCO_wdt.c b/drivers/watchdog/iTCO_wdt.c
index ba6ad66..99796c5 100644
--- a/drivers/watchdog/iTCO_wdt.c
+++ b/drivers/watchdog/iTCO_wdt.c
@@ -384,10 +384,10 @@ MODULE_PARM_DESC(nowayout,
"Watchdog cannot be stopped once started (default="
__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
-static int turn_SMI_watchdog_clear_off = 0;
+static int turn_SMI_watchdog_clear_off = 1;
module_param(turn_SMI_watchdog_clear_off, int, 0);
MODULE_PARM_DESC(turn_SMI_watchdog_clear_off,
- "Turn off SMI clearing watchdog (default=0)");
+ "Turn off SMI clearing watchdog (depends on TCO-version)(default=1)");
/*
* Some TCO specific functions
@@ -813,7 +813,7 @@ static int __devinit iTCO_wdt_init(struct pci_dev *pdev,
ret = -EIO;
goto out_unmap;
}
- if (turn_SMI_watchdog_clear_off) {
+ if (turn_SMI_watchdog_clear_off >= iTCO_wdt_private.iTCO_version) {
/* Bit 13: TCO_EN -> 0 = Disables TCO logic generating an SMI# */
val32 = inl(SMI_EN);
val32 &= 0xffffdfff; /* Turn off SMI clearing watchdog */
diff --git a/drivers/watchdog/sp805_wdt.c b/drivers/watchdog/sp805_wdt.c
index cc2cfbe..bfaf9bb 100644
--- a/drivers/watchdog/sp805_wdt.c
+++ b/drivers/watchdog/sp805_wdt.c
@@ -351,7 +351,7 @@ static int __devexit sp805_wdt_remove(struct amba_device *adev)
return 0;
}
-static struct amba_id sp805_wdt_ids[] __initdata = {
+static struct amba_id sp805_wdt_ids[] = {
{
.id = 0x00141805,
.mask = 0x00ffffff,