Custom Udoo Neo board hangs before loading u-boot

Discussion in 'General Discussion' started by juliend, Dec 20, 2016.

  1. juliend

    juliend New Member

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    Hello,

    I developped a custom board based on UDOO Neo Full schematics. The only difference, in addition to form factor, is the DDR reference : MT41K256M16HA-125 was replaced by MT41K256M16TW-107, which is faster and compatible with the original one.
    But, when I try to boot using "UDOObuntu 2.1.1 Minimal (14.04 LTS)" downloaded on Udoo website, system hangs before loading second stage bootloader.
    Logs :
    "
    U-Boot SPL 2015.04-21123-g7271b51 (Jul 22 2016 - 14:15:22)
    Setting 1024MB RAM calibration data
    port 1
    "
    My custom board freeze here !

    On my udoo board, system continue to boot with :
    "
    SPL: u-boot second stage will be loaded from MMC0

    U-Boot 2015.04-21123-g7271b51 (Jul 22 2016 - 14:15:22)
    CPU: Freescale i.MX6SX rev1.2 at 792 MHz
    ....
    "

    Is anyone could help me to identify my problem ? (is it necessary hardware probem ?)
    What steps are processed to launch the second stage bootloader from the first one ?

    Many thanks,
     

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