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Boot DM368 fail when running uboot

Kao U Lin
Prodigy 100 points

Dear all,

Sometimes,when i power on the board for dm368, the uboot procedural will be fail and it will print the error message like below.

DRAM:  128 MB
NAND:  NAND device: Manufacturer ID: 0xec, Chip ID: 0xf1 (Samsung NAND 128MiB 3,3V 8-bit)
Bad block table found at page 65472, version 0x01
Bad block table found at page 65408, version 0x01
128 MiB
TTTTTTTTTTTTTTTTEDMA_Read8 timeout!!
TTTTTTTTTTTTTTTTEDMA_Read8 timeout!!
TTTTTTTTTTTTTTTTEDMA_Read8 timeout!!
TTTTTTTTTTTTTTTTEDMA_Read8 timeout!!
TTTTTTTTTTTTTTTTEDMA_Read8 timeout!!
TTTTTTTTTTTTTTTTEDMA_Read8 timeout!!
TTTT

I tried some boards,some are always good,but some have chance to fail.

Does any one know how to find the reason why the situation occured?

Best Regards,

Ray

  • 0
    TI__Mastermind 41665 points

    What versions of software are you using when you get this error (i.e. DVSDK version, PSP version, U-Boot version, etc.)?

    I did a quick grep through the PSP 3.01 within DVSDK 4.01.00.09 for the DM368 and found no references to 'EDMA_Read8', so I am guessing you are using a different version of UBL or U-Boot.

    Assuming these are custom boards, with some that fail and some that succeed, and since it looks like you are still at the UBL stage, my suspicion would be that there is some problem with the board accessing DDR memory. If possible, I would try to connect up one of the failing boards to CCS through a JTAG emulator and run some integrity tests, you can find the CCS based tests for the Spectrum Digital DM368 EVM at http://support.spectrumdigital.com/boards/evmdm368 under the target content link to start with.