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Commit 6d106e0c authored by Herman Morsink Vollenbroek's avatar Herman Morsink Vollenbroek Committed by Wim Van Sebroeck
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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: default avatarHerman Morsink Vollenbroek <h.morsinkvollenbroek@home.nl>
Signed-off-by: default avatarWim Van Sebroeck <wim@iguana.be>
parent 9c67bea4

drivers/watchdog/w83627hf_wdt.c

+2 −0
Original line number Diff line number Diff line
@@ -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 */