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WRT54G CFE.BIN Mod Utility v1.0

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This program is merely a quick hack of a utility to allow one to modify a 
"CFE.BIN" bootloader for a WRT54G or WRT54GS Linksys Router.  The resulting
binary can then be re-flashed onto the router (i.e. - via JTAG).  

This utility will allow one to change the default MAC Address as well as
changing/adding/removing any of the "default" NVRAM parameters that are
stored in the CFE and are restored on a factory reset. (Think of it as 
changing the factory NVRAM defaults).  

******************************** WARNING **************************************
PLEASE BE AWARE OF WHAT YOU ARE CHANGING ... AS CHANGING THE WRONG THING CAN
LEAD TO VERY ODD (POSSIBLY DAMAGING) RESULTS.
******************************** WARNING **************************************

For instance - for those WRT54G v2 units that really have a 32MB of RAM but
can only access 16MB of RAM (governed down by Linksys intentionally) you can 
change the following parameters to a new CFE.BIN and then re-flash it to open
up all 32MB as useable memory:

16MB Parameters         32MB Parameters
--------------------    --------------------
boardflags=0x0188       boardflags=0x0388
sdram_init=0x0000       sdram_init=0x0008
sdram_config=0x0032     sdram_config=0x0022

Another possible use is to change the boot_wait=off to boot_wait=on so that even
after a factory reset - the default is on - this helps in allowing to re-tftp a
good flash image after bricking a unit. (Of course if you got JTAG then this isn't
too much of an issue)

Anyhow - maybe it will help someone...  I know their are folks who have bricked 
their units and the only way to recover is via JTAG and they would like their 
original MAC Address to be used instead of one from a replacement CFE.BIN file.
      
Enjoy!

-hairydairymaid