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Last Post 19 Nov 2010 11:03 AM by
U-boot problem with new M5485BFEE board
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Author Messages
New Member
New Member

17 Nov 2010 09:33 AM
    We didn't have problems until recent changes in the board. Now we have a problem with u-boot loading.
    We are using your M5485BFEE boards with Linux BPS m547x_8x_evb_20080811-final-ltib.iso, CF Flasher 3.1.9 and U-boot.
    Everything was ok untill tou made some changes in board's design and flash memory.
    Now attempt to write U-boot into EEPROM failes.
    Steps to reproduce:

    1. Flash U-boot 1.3.3. with CF Flasher 3.1.9. On CF Flasher's address request 0xff800000 is entered.
    2. Re-power board. Everything looks ok.
    3. Optional: add new variable(s)
    4. Enter command 'saveenv'
    5. Reboot the board

    See result on steps 4 and 5 below. How to fix it?

    -> saveenv
    Saving Environment to Flash...
    . done
    Un-Protected 1 sectors
    Erasing Flash...
    . done
    Erased 1 sectors
    Writing to Flash... Flash buffer write error at address ff802000
    Command Sequence Error.
    Block locked.
    Vpp Low Error.
    Can't write to protected Flash sectors
    . done
    Protected 1 sectors
    ===== REBOOT ===========
    U-Boot 1.3.3 (Aug 19 2008 - 15:05:41)

    CPU: Freescale MCF5485
    CPU CLK 200 Mhz BUS CLK 100 Mhz
    Board: Freescale FireEngine 5485 EVB
    I2C: ready
    DRAM: 64 MB
    FLASH: 18 MB
    *** Warning - bad CRC, using default environment

    In: serial
    Out: serial
    Err: serial
    Net: FEC0, FEC1

    ==== END =================
    Basic Member
    Basic Member

    19 Nov 2010 11:03 AM
    According to the PCN you will need to modify software to look for the new chip ID for the changed memory components.
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