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SPI Boot Problem

can chen
Intellectual 360 points

Hi,

    I want SPI mode boot Mistra board,and flashing 1st stage to SPI from 2nd stage in SD boot.but the CS pin of SPI flash is still high level, and I force the CS pin low level from external.So I can not flash u-boot to SPI flash.The fail messages as follows: "** Unable to read "u-boot.min.spi" from mmc 1:1 **". What the problem?

 

Thanks,

Chen

 

  • 0
    TI__Guru**** 170625 points

    Hi Chen,

    Check this guide how to transfer u-boot.min.spi to SPI flash:

    http://processors.wiki.ti.com/index.php/TI81XX_PSP_U-Boot#U-Boot_SPI_Support

    Also make sure that you initiated the MMC/SD card before reading the u-boot.min.spi from it, with the command: $mmc rescan 0

    Regards,

    Pavel