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arm, at91, wdt: make timeout configurable

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make the HW WDT timeout configurable through the define
CONFIG_AT91_HW_WDT_TIMEOUT.

Signed-off-by: Heiko Schocher <hs@denx.de>
This commit is contained in:
Heiko Schocher 2015-01-21 08:38:22 +01:00 committed by Andreas Bießmann
parent 2b8b38eaca
commit 7bae0d6f62
2 changed files with 7 additions and 0 deletions
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3
README
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@ -1257,6 +1257,9 @@ The following options need to be configured:
SoC, then define this variable and provide board
specific code for the "hw_watchdog_reset" function.
CONFIG_AT91_HW_WDT_TIMEOUT
specify the timeout in seconds. default 2 seconds.
- U-Boot Version:
CONFIG_VERSION_VARIABLE
If this variable is defined, an environment variable

4
drivers/watchdog/at91sam9_wdt.c
View file

@ -30,7 +30,11 @@
#define ticks_to_ms(t) (((t + 1) * 1000) >> 8)
/* Hardware timeout in seconds */
#if !defined(CONFIG_AT91_HW_WDT_TIMEOUT)
#define WDT_HW_TIMEOUT 2
#else
#define WDT_HW_TIMEOUT CONFIG_AT91_HW_WDT_TIMEOUT
#endif
/*
* Set the watchdog time interval in 1/256Hz (write-once)