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Can anyone know how to add spi interface in u-boot for OMAP3

santosh vastrad
Expert 2060 points

Hi all;

I have added spi interface in u-boot from omap3 patch got.

But still unable to do communication with SPI interface!!!!!!!!!!!

Can anyone know what might be the problem?

Regards,

santosh vastrad

  • 0
    Intellectual 695 points

    Hi,

    I couldn't be able to tell for OMAP3, but I would suggest you to share what patch you have applied, and specify if SPI has worked for you on kernel level or if you have some other way to validate HW.

    Said that, I would suggest to make sure that the pads needed for SPI are configured correctly on the control module, and if possible, confirm that you are getting some signals on the oscilloscope.

  • 0 in reply to Jorge Bustamante
    Expert 2060 points

    Hi Jorge,

    Thanks for the reply!!!!!!!!!!!!!

    I resolved the issue yesterday morning!!!!!!

    it's in mux pads configuration only,

    I got it right now

    Regards,

    santosh vastrad

  • 0 in reply to santosh vastrad
    Prodigy 100 points

    hi santosh,

    i have the same question for it...

    Can you provide the sugguestion(pin mux defined) for me...   

    My u-boot version is u-boot-2011.09 !

    I need to use SPI interface access SD Card on BeagleBoard.

    thanks!

    with Best Regards,

    ShinFu

  • 0 in reply to shinfu huang
    Expert 2060 points

    HI Shinfu:

    check for your spi interface;

    3 lines;

    MUX_VAL(CP(ETK_D0_ES2),         (IDIS  | PTD | EN | M1)

    MUX_VAL(CP(ETK_D1_ES2),         (IEN  | PTD | EN | M1))

    MUX_VAL(CP(ETK_D7_ES2),         (IDIS  | PTD | EN | M1)

    ETK__*** : these are my pins connected for SPI Check yours respectively!

    Regards,

    santosh vastrad