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AM6412: External RTC and Linux driver

Gunter Schmer
Genius 14242 points
Part Number: AM6412
Other Parts Discussed in Thread: BQ32002

Hi,

since the AM64xx does not have an integrated RTC module, we are looking at the TI external RTC https://www.ti.com/product/BQ32002 

Wanted to check if there is any AM64xx reference HW that is using an external RTC and has a Linux driver with that. Can someone comment?

Thanks!

--Gunter

  • 0
    TI__Guru 63145 points

    I'm not aware of anyone that has used this devices with AM64x. I will ask if anyone else has ran across an example of it being used with AM64x.

    It appears the BQ32002 device expects its VCC and external pull-up resistors to be powered from the same IO power supply that is sourcing the respective AM64x IOs. Such that IOs of both devices will power-up and power-down at the same time. If so, this is good as many of the AM64x IO are not fail-safe.

    I will reassign this thread to the Linux team for your question related to Linux support of the BQ32002 device.

    Regards,
    Paul

  • 0 in reply to peaves
    TI__Genius 14242 points

    Hi Paul,

    thanks for the feedback. 

    We also found a Linux driver on https://www.ti.com/tool/BQ32KSW-LINUX and in mainline.

    Regards,

    --Gunter