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PROCESSOR-SDK-AM62X: Watchdog timer reset issue

PADMALATHA GUDIPALLY
Prodigy 80 points

Part Number: PROCESSOR-SDK-AM62X

Hi All,

I am working on watchdog timer(WDT) on AM62xx processor EVM board, 

I am getting the below issue,

>> system is not rebooting after pressing the watchdog timer switch(SW3).

>> DTS chnages 

------------------------------------------------------

watchdog: watchdog {
compatible = "linux,wdt-gpio";
gpios = <&main_gpio1 9 GPIO_ACTIVE_LOW>;
hw_algo = "toggle";
always-running;
hw_margin_ms = <119876>; //2-Minutes
status = "okay";
};

------------------------------------------------

>> found some info in below path after flashing the 5.10 kernel version. 

root@am62xx-onecontrol-lrd:~# cat /sys/class/watchdog/watchdog0/power/runtime_suspended_time
0
root@am62xx-onecontrol-lrd:~# cat /sys/class/watchdog/watchdog0/power/runtime_status
unsupported

May i know the steps and parameters need to change in u-boot and kernel level to test the WDT.

Regards,

Padmalatha 

  • 0
    TI__Guru** 110090 points

    Hello Padmalatha,

    It is going to take me a couple of days to be able to look into your question. Feel free to ping the thread if I have not responded with more information within a few business days.

    Regards,

    Nick

  • 0
    Prodigy 80 points

    Hi Ti team,

    I am working on Watchdog on AM62xx processor EVM:

    >> when I try to reboot the kernel by pressing the Watchdog reset(sw3) switch but bot rebooting the system and it's hanging.

    Regards,

    Padmalatha 

  • 0 in reply to PADMALATHA GUDIPALLY
    TI__Guru** 110090 points

    Hello Padmalatha,

    I have merged your new thread in with your existing thread. When you have additional information or questions about this same subject, you can respond to this thread. When you have questions about a different subject (e.g., if you were having trouble with GPIO pins), you can create a new thread to discuss that different question there.

    Please provide additional information about "I try to reboot the kernel by pressing the Watchdog reset(sw3) switch but bot rebooting the system and it's hanging". It would be helpful if you attached your terminal output.

    Regards,

    Nick