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AM625: DDR4 Configuration PIN

Ravikumar Ronad
Intellectual 390 points
Part Number: AM625
Other Parts Discussed in Thread: SK-AM62

Dear Experts,

I'm finding the clarification regarding the PIN marked as "DDRSS_SDRAM_IDX   15"in the attached image. While generating the dtsi file for a 2GB DDR4 memory configuration, it appears that this particular PIN is not utilized in the default TI dtsi files for the actual scenario(SK-AM62).



Just give clarity about this PIN configuration.



Best Regards

Ravikumar

  • +1
    TI__Guru* 79670 points

    Ravi, you are correct, this is not used by the driver currently.  This was recently added to be utilized later.  It is not a PIN, but rather intended for the SDRAM_IDX parameter in V2A_CTL_REG.  This value changes depending on SDRAM density.  

    Regards,

    James

  • +1 in reply to JJD
    Intellectual 390 points

    Hi James,

    Thanks for the clarification,  

    Best Regards,

    Ravikumar