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AM335x EVM NAND Support in U-Boot?

B. Bowling
Prodigy 195 points

Supposedly there is NAND flash (Micron 256MB) on the AM335xEVM. However, u-boot indicates that there is no NAND. Is there support for NAND in uboot?

Uboot gives out an error saying no NAND found U-Boot 2011.09 (Jul 26 2012 - 17:13:38)

I2C:   ready

DRAM:  256 MiB

WARNING: Caches not enabled

No daughter card present

NAND:  HW ECC Hamming Code selected

No NAND device found!!!            <----------------

0 MiB

MMC:   OMAP SD/MMC: 0, OMAP SD/MMC: 1          

Thanks - Bruce

  • 0
    TI__Intellectual 1830 points

    Bruce,

    Which EVM are you using? The General Purpose EVM has 256MB of NAND flash but should report 512MB of DRAM. The Starter Kit EVM, which has 256MB of RAM, does not contain NAND Flash.


    Regards,

    Dave

  • 0 in reply to Dave Gerlach
    Prodigy 70 points

    Hi Bruce/Dave,

    I have the same problem with the micron MT29F16G08CBACA 16gb, 8bit nand. My baord is am335x evm replica custom board. Below is the boot log of u-boot

    .........................................................................................

    U-Boot SPL 2012.10 (Aug 30 2013 - 17:30:48)
    OMAP SD/MMC: 0
    reading u-boot.img
    reading u-boot.img


    U-Boot 2012.10 (Sep 01 2013 - 23:47:26)

    I2C:   ready
    DRAM:  512 MiB
    WARNING: Caches not enabled
    NAND:  No NAND device found!!!
    0 MiB

    ..................................................................................

    please help

    Regards,

    subhash