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authorHeiko Schocher <hs@denx.de>2015-01-21 08:38:22 +0100
committerAndreas Bießmann <andreas.devel@googlemail.com>2015-02-07 23:43:20 +0100
commit7bae0d6f62723bdfba50ffbd7491ebd282573c0a (patch)
tree30463a7f38b29efc8ba83b0f3f85de18fd0ef9db
parent2b8b38eacad9bd8dd0e30f324f2aa2b9d717e97a (diff)
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arm, at91, wdt: make timeout configurable
make the HW WDT timeout configurable through the define CONFIG_AT91_HW_WDT_TIMEOUT. Signed-off-by: Heiko Schocher <hs@denx.de>
-rw-r--r--README3
-rw-r--r--drivers/watchdog/at91sam9_wdt.c4
2 files changed, 7 insertions, 0 deletions
diff --git a/README b/README
index a28ff13..ba57dc5 100644
--- a/README
+++ b/README
@@ -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
diff --git a/drivers/watchdog/at91sam9_wdt.c b/drivers/watchdog/at91sam9_wdt.c
index ffd49a2..03c786c 100644
--- a/drivers/watchdog/at91sam9_wdt.c
+++ b/drivers/watchdog/at91sam9_wdt.c
@@ -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)