Is there anyway to know the way OMAP got reset

2009-09-10 Thread Suresh Rajashekara 
Is there anyway on OMAP systems (or in general in embedded systems) to
know a way in which the processor was reset, after the reset.

I am using a system based on OMAP5912 OSK and its getting reset for no
known reason.

Thanks in advance,

Suresh
--
To unsubscribe from this list: send the line unsubscribe linux-omap in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

RE: Is there anyway to know the way OMAP got reset

2009-09-10 Thread Gadiyar, Anand 
Suresh Rajashekara wrote:

 Is there anyway on OMAP systems (or in general in embedded systems) to
 know a way in which the processor was reset, after the reset.
 
 I am using a system based on OMAP5912 OSK and its getting reset for no
 known reason.

Not sure about the OMAP5912, but at least on the OMAP3430, there
is a register (PRM_RSTST) that can logs the global reset sources.
Reading this register after the reset should tell you the cause of
the last reset.

Maybe there is something similar in the OMAP5912.

- Anand
--
To unsubscribe from this list: send the line unsubscribe linux-omap in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

RE: Is there anyway to know the way OMAP got reset

2009-09-10 Thread Hunter, Jon 
 Not sure about the OMAP5912, but at least on the OMAP3430, there
 is a register (PRM_RSTST) that can logs the global reset sources.
 Reading this register after the reset should tell you the cause of
 the last reset.
 
 Maybe there is something similar in the OMAP5912.

You can look at the ARM_SYSST register on the 5912. This should tell you the 
source on the reset (external, watchdog, software, etc) that occured. 

Jon--
To unsubscribe from this list: send the line unsubscribe linux-omap in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html