Flashing PXA27M bootloader

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Revision as of 06:36, 12 April 2011 by Roland (talk | contribs)
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System set up

Linux kernel

You need to enable usbfs in your kernel.
Enable CONFIG_USB_DEVICEFS option in kernel options

how-to-customize-your-ubuntu-kernel

Install OpenOCD

  1. Copy libftd2xx.so to your /usr/lib folder
  2. Create symlinks for the libftd2xx by using the following commands:
    • cd /usr/lib
    • ln -s libftd2xx.so.0.4.13 libftd2xx.so.0.4
    • ln -s libftd2xx.so.0.4.13 libftd2xx.so.0
    • ln -s libftd2xx.so.0.4.13 libftd2xx.so
  3. tar xzfv openocd_1.0.1383_i386.tar.gz
  4. dpkg -i openocd_1.0.1383_i386.deb
    • When trying to install this on a 64bit system you need to --force-architecture or you'll get an error.

Using OpenOCD

  1. Power up target board and connect JTAG
  2. Start the first terminal and write
    • openocd -f vpac270.cfg
      • Error: unable to open ftdi device: 18
        • OpenOCD needs usbfs
        • mount -t usbfs none /proc/bus/usb
      • Error: unable to open ftdi device: 2
        • You need root privileges
        • log in as root or
        • sudo openocd -f vpac270.cfg
  3. Start second terminal, use telnet to connect to OpenOCD daemon.
    1. telnet localhost 4444
    2. reset halt
    3. load_image /tftpboot/u-boot_noboot.bin 0x5c010000
    4. resume 0x5c010000
  4. Start third terminal
    • minicom
      • Use settings 38400 8N1
    • set ipaddr 10.0.0.22;set serverip 10.0.0.16;erase 1:0-2;tftp x-load.bin;cp.b a1000000 0 400;tftp u-boot.bin;cp.b a1000000 800 $(filesize);reset


Reference material