TDA4VM: reboot/shutdown the entire system from A72 through linux software

Vadivel Palanisamy

Part Number: TDA4VM

Hi E2E team,

Please can you suggest the way to 'reboot' and 'shutdown' the entire system? (A72 & other cores like R5F/ISP/DSP/..etc) from A72 Linux user space application. Is there any pre-build tools available to do.

Thanks & Regards,

Vadivel

over 3 years ago

0 Keerthy J over 3 years ago

TI__Guru**** 166410 points

Vaidivel,

There is PMIC control on the A72 side. So when you run the 'shutdown' command then the PMIC is not shutdown. Hence I even conveyed the same here:
https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1116497/tda4vm-shutdown-now-command---error-system-off-operation-not-handled

A72 side reboots when you run the 'reboot' command.

- Keerthy

0 Vadivel Palanisamy over 3 years ago in reply to Keerthy J

Intellectual 280 points

Thanks Keerthy!

So, we can't shutdown or reboot the entire system from A72 through software. This will lead into the problem in production/release. Lets team decide on it.

Regards,

Vadivel

0 John H. Gardner over 3 years ago in reply to Vadivel Palanisamy

TI__Guru 55211 points

Closing ticket - please add a new e2e if anything further.

John

Processors

Processors forum

TDA4VM: reboot/shutdown the entire system from A72 through linux software