SNAPGEAR IXP425 FLASH
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1. LOADING BOOT LOADER

   Using OCdemon package, setup with appropriate .gdbinit script.

   Firstly make sure you have the lp drivers loaded, and then load
   the ocdemon driver:

      insmod parport
      insmod parport_pc
      insmod lp
      insmod -f ocdemonpp

   (Ignore the ocdemonpp load warnings).

   Now startup the process demon, and start gdb:

      OcdLibRemote -c XSCALE-IXP &
      /tmp/xscale-elf-gdb --nw

   Now run the "program-loader" script to program the flash with the
   RedBoot firmware.



2. REDBOOT PARTITION

   To create a SnapGear RedBoot flash partition setup do:

     fis init
     fis create -b 0x50040000 -l 0x040000 -f 0x50040000 config
     fis create -b 0x00700000 -l 0x100000 -e 0x00700000 -f 0x50080000 zImage
     fis create -b 0x00800000 -l 0xe40000 -f 0x50180000 ramdisk
     fis create -b 0x00700000 -l 0xf40000 -e 0x00700000 -f 0x50080000 image

   Order is important, you must do the creates in the above order.
   Now create a boot script, and default network setup for RedBoot:
   
     fconfig
   
   You want to enter this as the start script:
   
     fis load zImage
     go
   
   Choose a boot timeout of 3 seconds. You can select either DHCP to get
   an initial address or hard code an IP address, your choice. Save this
   setup into flash when done (it will prompt you to save it).
   
   Reboot (with "reset" command) after flash configuration. Then CTRL-C back
   into RedBoot at the prompt. Now load a image into RAM and run:
   
     load -r -v -b 0x00700000 image.bin
     exec -r 0x800000 -s 0xe40000 -c "console=ttyS0,115200 root=/dev/ram0 mem=32M@0x00000000" 0x700000
   
   You can now do a standard netflash to load a real image:

     netflash <tftp-server> image.bin

   Alternatively, you can program the image in RedBoot:

     load -r -v -b 0x00700000 image.bin
     fis write -f 0x50080000 -b 0x00700000 -l 0x00f40000