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TI8168 EVM is not booting up after flashing u-boot of RDK DVRRDK_03.00.01

shashank pathak
Intellectual 445 points


Hi,

We have NAND flashed RDK u-boot binary 'uboot_NAND_DM816X_TI_EVM' which was generated after compiling RDK for 'DM816X_TI_EVM' board type.

For flashing the u-boot we followed steps mentioned in "Flashing U-Boot from U-Boot" section in DVR RDK V3.0.1 GA Installation Guide.pdf  for 816X Platforms.

When we fired the command 'mw.b 0x81000000 0xFF 0x32800;tftp 0x81000000 uboot_NAND_DM816X_TI_EVM;nandecc hw 2;nand erase 0x0 0x240000;nand write.i 0x81000000 0x0 0x32800', on the console we show successful NAND write messages and then after console got halted.

After that we power cycled the board but we are not getting any prints on console.

Can anybody please help on this or provide idea how to resolve it ?

Thanks,

Shashank

  • 0
    Genius 4330 points

    Hi

         I also met this problem when flashing the u-boot form u-boot. My dvrrdk version is 03.00.00.00.    I add a command "nandecc hw 0" after the "write.i 0x81000000 0x0 0x32800"  then the u-boot can start correctly. Before add this command, the console didn't get any print message. hope to be useful for you!

  • 0 in reply to Eric Mao
    TI__Mastermind 20245 points

    Hi,

    There is a switch position change between DVRRDK2.80 and DVRRDK3.0 for Nand boot. Please check you have put switch in correct position.

  • 0 in reply to HardikShah
    TI__Expert 7765 points

    Shashank, Eric,

    Please try prebuilt uboot images in respective releases with correct switch settings. Kindly look at following setion in install guide "Flashing U-Boot from uboot" as see the switch setting mentioned in the picture for EVM.

    If you board is brick dead, you might have to flash uboot from CCS or use SD card for booting. In either case kindly ensure correct switch settings.

     

  • 0 in reply to Yogesh Marathe
    Genius 4330 points

    Hi Yogesh Marathe

      After use the command" nandecc hw 0", The u-boot can flash correctly.  I've try flash u-boot from CCS and u-boot. both can work correctly.

  • 0 in reply to Eric Mao
    Intellectual 445 points

    Hi,

    The problem, no print on console, is resolved by flashing new u-boot by using sd card for booting.

    After that everything is working fine.

    I tried to modify the command for u-boot to u-boot flash by adding "nandecc hw 0" . But it didn't worked. console is still getting halted after flashing u-boot to nand.

    After that i recovered again the board through SD card boot method.Now it's working fine but following error message appears after booting,

    MMC:   OMAP SD/MMC: 0
    ECC: uncorrectable.
    ECC: uncorrectable.

    Thanks everybody.

    shashank.

  • 0 in reply to shashank pathak
    TI__Expert 7765 points


    Shashank,

    Now that you are able to boot using SD either you can flash uboot to NAND and then use it or continue using SD card. I assume even after this error you are reaching console prompt.

    In case you want to flash on NAND you can type this command 'nand info' on the console and see if nand is getting detected? If it is not then you might want to check switch sw3 and sw4 on the EVM