WDOG2 of i.MX6DL

宗標廖 · ‎07-07-2016

Hello Community

I did following tests on i.MX6DLSabreauto board and i.MX6Sabresd board .

1)test steps

/unit_tests/memtool -16 0x20c0000=0x34

2)result

On sabresd board, after run the command above, the board reboots.

On sabreauto board, after run the command above, the board does not reboot and the following error comes out.

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

could you tell me why WDOG2 is different on sabreauto board and sabresd board?

Thank you!

ZongbiaoLiao

igorpadykov · ‎07-07-2016

Hi ZongbiaoLiao

WDOG2 on sabresd board is connected to PMIC PWRON

and resets PMIC, while on sabreauto board it is not connected in such way.

Error may appear since WDOG2 is dedicated to TZ, description

can be found on sect.70.4 Watchdog mechanism and system integration

i.MX6SDL Reference Manual

Best regards

igor

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宗標廖 · ‎07-07-2016

Hi igor

Thank you for your reply!

Please tell me how to enable WDOG2 on sabreauto board.

Thank you!

ZongbiaoLiao