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[WATCHDOG] i6300esb: fix unlock register with 

Before you can read or write from the i6300esb memeory mapped registers,
you need to unlock these. This is done by writing the magic numbers 0x80
and 0x86 to the reload register. The size of the reload register is 32bit
though.

Also binary 11 is hex 0x03 and not 0x11.

Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
This commit is contained in:
Wim Van Sebroeck 2010-03-08 11:02:38 +00:00
parent c1bf3acffc
commit 39f3be72c1
1 changed files with 3 additions and 3 deletions
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6
drivers/watchdog/i6300esb.c
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@ -65,7 +65,7 @@
/* Config register bits */
#define ESB_WDT_REBOOT (0x01 << 5) /* Enable reboot on timeout */
#define ESB_WDT_FREQ (0x01 << 2) /* Decrement frequency */
#define ESB_WDT_INTTYPE (0x11 << 0) /* Interrupt type on timer1 timeout */
#define ESB_WDT_INTTYPE (0x03 << 0) /* Interrupt type on timer1 timeout */
/* Reload register bits */
#define ESB_WDT_TIMEOUT (0x01 << 9) /* Watchdog timed out */
@ -111,8 +111,8 @@ MODULE_PARM_DESC(nowayout,
*/
static inline void esb_unlock_registers(void)
{
writeb(ESB_UNLOCK1, ESB_RELOAD_REG);
writeb(ESB_UNLOCK2, ESB_RELOAD_REG);
writew(ESB_UNLOCK1, ESB_RELOAD_REG);
writew(ESB_UNLOCK2, ESB_RELOAD_REG);
}
static int esb_timer_start(void)