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AM6442: Throttling function

Kanae

Guru 10165 points

Part Number: AM6442

Tool/software:

Hi Support Team,

Is it possible for AM64x to execute throttling?
My understanding is that throttling is not Enable by default.
Please let me confirm that AM625x, which has the same VTM,
seems to be able to execute throttling from the following thread.

e2e.ti.com/.../am625-cpu-thermal-throttling sitesearch&keymatch=throttling#%22

Best Regards,
Kanae

0 Anshu Madwesh 9 months ago

TI__Mastermind 20435 points

Hello Kanae,

There is no plans for CPU throttling on AM64x.

You can change some of the parameters in the VTM definition in the Linux device tree depending on the application.

Here is the dtsi: https://git.ti.com/cgit/ti-linux-kernel/ti-linux-kernel/tree/arch/arm64/boot/dts/ti/k3-am64-thermal.dtsi?h=ti-linux-6.12.y

Here are the bindings: https://git.ti.com/cgit/ti-linux-kernel/ti-linux-kernel/tree/arch/arm64/boot/dts/ti/k3-am64-thermal.dtsi?h=ti-linux-6.12.y

Best Regards,

Anshu

0 Kanae 9 months ago in reply to Anshu Madwesh

Guru 10165 points

Hi Anshu,

Thank you for your reply.

In your reply, there are same links for the dtsi and the bindings, is it correct?

https://git.ti.com/cgit/ti-linux-kernel/ti-linux-kernel/tree/arch/arm64/boot/dts/ti/k3-am64-thermal.dtsi?h=ti-linux-6.12.y

Best Regards,
Kanae

0 Anshu Madwesh 9 months ago in reply to Kanae

TI__Mastermind 20435 points

Hi Kanae,

Yes, AM62x and AM64x use the same thermal Linux driver, but the .dtsi files calling the VTM will be different.

Thanks,

Anshu

+1 Anshu Madwesh 9 months ago in reply to Anshu Madwesh

TI__Mastermind 20435 points

Hi Kanae,

Apologies for the confusion. Here is the actual dts bindings: https://git.ti.com/cgit/ti-linux-kernel/ti-linux-kernel/tree/Documentation/devicetree/bindings/thermal/thermal-zones.yaml?h=ti-linux-6.12.y

Thanks,

Anshu

0 Kanae 9 months ago in reply to Anshu Madwesh

Guru 10165 points

Hi Anshu,

Thank you for your reply.
I will refer to it.

Best Regards,
Kanae