AM6442: Enable RTC in the device tree

Nagaraj Sivasankaran

Part Number: AM6442

I didn't see any RTC entry in the device tree. How to enable RTC in the Linux?

0 Nick Saulnier over 2 years ago

Hello Nagaraj,

Apologies for the delayed response. I am not sure whether RTC functionality was added to our AM64x Linux SDK 8.0. I am checking with the developers.

Regards,

Nick

0 Nagaraj Sivasankaran over 2 years ago in reply to Nick Saulnier

Hi Nick,

Thank you for the update. I will wait for your response.

Regards

Nagaraj S

0 Nick Saulnier over 2 years ago in reply to Nagaraj Sivasankaran

Hello Nagaraj,

We have multiple timers in the AM64x, but none of them are an "RTC" timer like you see in devices like AM335x.

Future readers, please note that the AM64x watchdog timer is not initialized properly in AM64x Linux Processor SDK 8.0 or 8.1. We plan to fix it in AM64x Linux Processor SDK 8.2. See this thread for more:
https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1054450/am6442-failed-to-enumerate-watchdog-invalid-resource

What timer functionality were you looking for?

Regards,

Nick

Processors forum