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AM4372: QSPI boot

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Replies: 2

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Part Number: AM4372

Sitara support team,

 I would like to make sure that the following NOR Flash Memory can use a qspi boot for AM4376.

 MICRON: MT25QL512ABB1EW9-0SIT

 I have checked Section 5.2.6.7.1.in AM437x TRM and there is described... 

-The boot device must default to quad mode, if quad-read support is desired

 However MT25QL512ABB1EW9-0SIT is set "Quad I/O protocol" bit in Nonvolatile Configuration Register is "1 = Disabled (Default)".

 Is this problem for using the NOR Flash Memory? Or is it not problem to use if "Quad I/O protocol" bit is set "0 = enabled"?

 If there are any other limitations to use the NOR Flash Memory, please let me know.

 

Best regards,

Kanae

  • Hi,

    Kanae
    However MT25QL512ABB1EW9-0SIT is set "Quad I/O protocol" bit in Nonvolatile Configuration Register is "1 = Disabled (Default)". Is this problem for using the NOR Flash Memory?

    Yes, this is a problem. AM437x will not be able to boot from this memory.

    Kanae
    Or is it not problem to use if "Quad I/O protocol" bit is set "0 = enabled"?

    If this is set BEFORE the AM437x tries to boot from this memory, then the boot will be successful.

     

    Best Regards
    Biser
  • In reply to Biser Gatchev-XID:

    Hi Biser,

    Thank you for your quick reply!

    Best regards,
    Kanae