diff options
Diffstat (limited to 'common/timer.c')
| -rw-r--r-- | common/timer.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/common/timer.c b/common/timer.c index da3feff404..d88a34164e 100644 --- a/common/timer.c +++ b/common/timer.c @@ -13,6 +13,7 @@ #include "util.h" #include "task.h" #include "timer.h" +#include "watchdog.h" #define TIMER_SYSJUMP_TAG 0x4d54 /* "TM" */ @@ -265,13 +266,25 @@ static int command_wait(int argc, char **argv) if (*e) return EC_ERROR_PARAM1; + /* + * Waiting for too long (e.g. 3s) will cause the EC to reset due to a + * watchdog timeout. This is intended behaviour and is in fact used by + * a FAFT test to check that the watchdog timer is working. + */ udelay(i * 1000); + /* + * Reload the watchdog so that issuing multiple small waitms commands + * quickly one after the other will not cause a reset. + */ + watchdog_reload(); + return EC_SUCCESS; } +/* Typically a large delay (e.g. 3s) will cause a reset */ DECLARE_CONSOLE_COMMAND(waitms, command_wait, "msec", - "Busy-wait for msec"); + "Busy-wait for msec (large delays will reset)"); #endif #ifdef CONFIG_CMD_FORCETIME |