i.MX ProcessorsのトピックRe: i.MX8MM operating points

i.MX8MM operating points

pierluigi_p — Fri, 13 May 2022 22:11:12 GMT

Dear NXP team,

in the file imx8mm.dtsi, the opp-table reports the same 3 operating points documented in tabled 10 of the SoC datasheet: 1.2, 1.6 and 1.8 GHz

However, in the file clk-pll14xx.c, the table imx_pll1416x_tbl reports also additional clock frequencies.

Can these additional frequencies be introduced in the opp-table to farther reduce the clock frequency ?

If yes, which values should be used for the properties opp-microvolts, opp-supported-hw, clock-latency-ns ?

Thanks

Best Regards

Pier

Re: i.MX8MM operating points

Zhiming_Liu — Wed, 18 May 2022 07:17:12 GMT

Hi @pierluigi_p

Have sent your the patch.

Re: i.MX8MM operating points

pierluigi_p — Wed, 18 May 2022 08:59:55 GMT

Thanks @Zhiming_Liu,

one last question: can I share the patch with customers ?

Thanks

Best Regards

Pier

Re: i.MX8MM operating points

Zhiming_Liu — Wed, 18 May 2022 09:03:32 GMT

Yes, you can share it.

Re: i.MX8MM operating points

pierluigi_p — Wed, 08 Jun 2022 14:56:52 GMT

Hi @Zhiming_Liu ,

can this approach be used for NANO too ?

Thanks

Best Regards

Pier

Re: i.MX8MM operating points

jxb4256 — Fri, 24 Jun 2022 17:51:51 GMT

Can you please send this patch to me too?

Re: i.MX8MM operating points

VilleS — Tue, 07 Mar 2023 07:09:02 GMT

Can you share the patch publicly also?

Re: i.MX8MM operating points

dev_pcs — Fri, 21 Apr 2023 21:42:05 GMT

@Zhiming_Liu can you send me also the patch?

Re: i.MX8MM operating points

gary_bisson — Thu, 04 May 2023 07:27:08 GMT

Hi,

In that case, can you share that patch here directly?

Also, could you elaborate as to why this isn't in the tree in the first place?

Regards,
Gary

Re: i.MX8MM operating points

m_karabela — Wed, 10 May 2023 05:52:05 GMT

I would love to see this patch. I'm interested in lowest possible power consumption of imx8mm.
Can you share it?

Re: i.MX8MM operating points

PetersonJA68 — Thu, 14 Mar 2024 16:51:34 GMT

Was the patch mentioned here ever provided publicly? We are working on a new device using the iMX8MM and are interested in running at operating points below 1.2 GHz.