Watchdog disable

[shamiksaha]

Hi guys,

As a mistake while blowing the fuses in U-Boot, I set the watchdog enable fuse as well, now every 90 seconds my board gets reset. Can the watchdog be disabled by software in uboot after setting the fuse??

Please help.....

[Yuri]

Hello,

  According to Watchdog Control Register (WDOGx_WCR) description

the WDZST, WDBG, WDW, WDE, WDT bits  are write-once only bits.
Once the software does a write access to these bits, they will be locked

and cannot be reprogrammed until the next system reset assertion.

Have a great day,
Yuri

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[shamiksaha · Accepted solution]

Thanks for your reply Yuri,

I found the solution. In the System Reset Control register (SRC_SCR) at address 0x20d8000 there is a watchdog mask bit. On setting this bit i'm able to avoid the constant resetting, however due to this software rest is disabled and I have to manually reset the board everytime.

regards,

Shamik