watchdog can not work

[letan]

Dear all,

I have got a custom board (i.MX6 Dual) booting fine. But when I run ./wdt_driver_test.out 1 2 0 & It outputs full of logs as below in console

nvs-secvio 20cc000.caam-snvs: Unhandled Security Violation Interrupt 2 = Watchdog

snvs-secvio 20cc000.caam-snvs: Unhandled Security Violation Interrupt 2 = Watchdog

snvs-secvio 20cc000.caam-snvs: Unhandled Security Violation Interrupt 2 = Watchdog

snvs-secvio 20cc000.caam-snvs: Unhandled Security Violation Interrupt 2 = Watchdog

snvs-secvio 20cc000.caam-snvs: Unhandled Security Violation Interrupt 2 = Watchdog

snvs-secvio 20cc000.caam-snvs: Unhandled Security Violation Interrupt 2 = Watchdog

snvs-secvio 20cc000.caam-snvs: Unhandled Security Violation Interrupt 2 = Watchdog

snvs-secvio 20cc000.caam-snvs: Unhandled Security Violation Interrupt 2 = Watchdog

snvs-secvio 20cc000.caam-snvs: Unhandled Security Violation Interrupt 2 = Watchdog

snvs-secvio 20cc000.caam-snvs: Unhandled Security Violation Interrupt 2 = Watchdog

snvs-secvio 20cc000.caam-snvs: Unhandled Security Violation Interrupt 2 = Watchdog

snvs-secvio 20cc000.caam-snvs: Unhandled Security Violation Interrupt 2 = Watchdog

snvs-secvio 20cc000.caam-snvs: Unhandled Security Violation Interrupt 2 = Watchdog

snvs-secvio 20cc000.caam-snvs: Unhandled Security Violation Interrupt 2 = Watchdog

snvs-secvio 20cc000.caam-snvs: Unhandled Security Violation Interrupt 2 = Watchdog

snvs-secvio 20cc000.caam-snvs: Unhandled Security Violation Interrupt 2 = Watchdog

snvs-secvio 20cc000.caam-snvs: Unhandled Security Violation Interrupt 2 = Watchdog

snvs-secvio 20cc000.caam-snvs: Unhandled Security Violation Interrupt 2 = Watchdog

snvs-secvio 20cc000.caam-snvs: Unhandled Security Violation Interrupt 2 = Watchdog

snvs-secvio 20cc000.caam-snvs: Unhandled Security Violation Interrupt 2 = Watchdog

snvs-secvio 20cc000.caam-snvs: Unhandled Security Violation Interrupt 2 = Watchdog

snvs-secvio 20cc000.caam-snvs: Unhandled Security Violation Interrupt 2 = Watchdog

snvs-secvio 20cc000.caam-snvs: Unhandled Security Violation Interrupt 2 = Watchdog

snvs-secvio 20cc000.caam-snvs: Unhandled Security Violation Interrupt 2 = Watchdog

snvs-secvio 20cc000.caam-snvs: Unhandled Security Violation Interrupt 2 = Watchdog

snvs-secvio 20cc000.caam-snvs: Unhandled Security Violation Interrupt 2 = Watchdog

snvs-secvio 20cc000.caam-snvs: Unhandled Security Violation Interrupt 2 = Watchdog

snvs-secvio 20cc000.caam-snvs: Unhandled Security Violation Interrupt 2 = Watchdog

snvs-secvio 20cc000.caam-snvs: Unhandled Security Violation Interrupt 2 = Watchdog

snvs-secvio 20cc000.caam-snvs: Unhandled Security Violation Interrupt 2 = Watchdog

snvs-secvio 20cc000.caam-snvs: Unhandled Security Violation Interrupt 2 = Watchdog

snvs-secvio 20cc000.caam-snvs: Unhandled Security Violation Interrupt 2 = Watchdog

snvs-secvio 20cc000.caam-snvs: Unhandled Security Violation Interrupt 2 = Watchdog

snvs-secvio 20cc000.caam-snvs: Unhandled Security Violation Interrupt 2 = Watchdog

snvs-secvio 20cc000.caam-snvs: Unhandled Security Violation Interrupt 2 = Watchdog

snvs-secvio 20cc000.caam-snvs: Unhandled Security Violation Interrupt 2 = Watchdog

snvs-secvio 20cc000.caam-snvs: Unhandled Security Violation Interrupt 2 = Watchdog

snvs-secvio 20cc000.caam-snvs: Unhandled Security Violation Interrupt 2 = Watchdog

snvs-secvio 20cc000.caam-snvs: Unhandled Security Violation Interrupt 2 = Watchdog

snvs-secvio 20cc000.caam-snvs: Unhandled Security Violation Interrupt 2 = Watchdog

snvs-secvio 20cc000.caam-snvs: Unhandled Security Violation Interrupt 2 = Watchdog

snvs-secvio 20cc000.caam-snvs: Unhandled Security Violation Interrupt 2 = Watchdog

snvs-secvio 20cc000.caam-snvs: Unhandled Security Violation Interrupt 2 = Watchdog

snvs-secvio 20cc000.caam-snvs: Unhandled Security Violation Interrupt 2 = Watchdog

snvs-secvio 20cc000.caam-snvs: Unhandled Security Violation Interrupt 2 = Watchdog

snvs-secvio 20cc000.caam-snvs: Unhandled Security Violation Interrupt 2 = Watchdog

snvs-secvio 20cc000.caam-snvs: Unhandled Security Violation Interrupt 2 = Watchdog

snvs-secvio 20cc000.caam-snvs: Unhandled Security Violation Interrupt 2 = Watchdog

Could you please take a look on this and help me?

Thanks,

Tan

[igorpadykov]

Hi Tan

please check sect.1.15 TrustZone Watchdog (TZ WDOG) Security

Reference Manual (IMX6DQ6SDLSRM_RevD.pdf) available on link

Q&A: How is mx6 PMIC_ON_REQ under SW control?

Best regards

igor

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