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| author | Herman Morsink Vollenbroek <h.morsinkvollenbroek@home.nl> | 2010-12-06 21:24:56 +0100 |
|---|---|---|
| committer | Wim Van Sebroeck <wim@iguana.be> | 2011-01-12 10:23:52 +0000 |
| commit | 6d106e0cac842bc17c87aadd5fa01730694c987a (patch) | |
| tree | 28385bafc5b83251c359eadc709797b617b2d639 /drivers/watchdog/w83627hf_wdt.c | |
| parent | 9c67bea419c384561eeb84bdf251d521a3234e45 (diff) | |
| download | op-kernel-dev-6d106e0cac842bc17c87aadd5fa01730694c987a.zip op-kernel-dev-6d106e0cac842bc17c87aadd5fa01730694c987a.tar.gz | |
watchdog: Fix reboot on W83627ehf chipset.
The watchdog driver for the SUPERIO chip winbond w83627ehf does not work.
If you open /dev/watchdog and write a character to /dev/watchdog then
the watchdog will be triggered. However the watchdog will not trigger
the hardware RESET after the timeout, because the watchdog has never been
enabled.
Signed-off-by: Herman Morsink Vollenbroek <h.morsinkvollenbroek@home.nl>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Diffstat (limited to 'drivers/watchdog/w83627hf_wdt.c')
| -rw-r--r-- | drivers/watchdog/w83627hf_wdt.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/watchdog/w83627hf_wdt.c b/drivers/watchdog/w83627hf_wdt.c index 48f2e01..e5c91d4 100644 --- a/drivers/watchdog/w83627hf_wdt.c +++ b/drivers/watchdog/w83627hf_wdt.c @@ -129,6 +129,8 @@ static void w83627hf_init(void) t = inb_p(WDT_EFDR); /* read CRF5 */ t &= ~0x0C; /* set second mode & disable keyboard turning off watchdog */ + t |= 0x02; /* enable the WDTO# output low pulse + to the KBRST# pin (PIN60) */ outb_p(t, WDT_EFDR); /* Write back to CRF5 */ outb_p(0xF7, WDT_EFER); /* Select CRF7 */ |
