topic Linux system clock when iMX6 is in deepsleep in i.MX Processors

Linux system clock when iMX6 is in deepsleep

sivaraj — Fri, 15 May 2020 17:20:37 GMT

Hi,

I am using iMX6 processor with Linux OS in a project. Can you please let me know whether linux system clock will be running when the iMX6 is in deepsleep mode? If it will not be running, how the system clock will be updated in when the iMX6 wakes up.

Thanks,

Sivaraj

Re: Linux system clock when iMX6 is in deepsleep

Bio_TICFSL — Mon, 18 May 2020 13:52:17 GMT

Hello Sivaraj,

Deep sleep mode is implemented in linux, please check
Chapter 21 Low-level Power Management (PM) Driver of the Linux Manual for description of Mem (suspend to RAM) mode and AN4509 i.MX 6Dual/6Quad Power Consumption Measurement sect. Deep Sleep Mode
https://cache.freescale.com/files/32bit/doc/app_note/AN4509.pdf
Note, if custom modifications of linux sources are needed, may be recommended
to apply to profesional services or elevate request through local fae channel (project info
may be needed).

Regards

Re: Linux system clock when iMX6 is in deepsleep

sivaraj — Tue, 19 May 2020 06:38:29 GMT

Hi,

Thanks for the reply.

I am trying to understand how the linux system clock works in the deepsleep mode of iMX6 processor. I could not get the answer from the documents.

Can you please help me understand?

Thanks,