Anybody know how the cfg_lock bit is manipulated on the MPC8349EMDS board?  I 
know the bit is in the internal configuration registers but how is this bit 
flipped on boot?  We are trying to boot the board as an agent in a PC.  We can 
only do this using the hard coded option.  We would like to boot the board with 
the reset config word in the I2C but we can't boot the board with the 'core 
disabled' as we would like(it only works if the core enable bit is set, 
otherwise the PC hangs and won't boot).  We are hoping to use a pre-load 
command in the boot sequencer,  but there is little information on how this can 
be done or if it can be done.  We can flip the bit from u-boot or using our 
driver when the PC has booted up but we need some way to flip the bit during 
boot to allow our PC to get its proper configuration cycles.  Any ideas?

                
---------------------------------
How low will we go? Check out Yahoo! Messenger?s low  PC-to-Phone call rates.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: 
http://ozlabs.org/pipermail/linuxppc-embedded/attachments/20060502/2875b60f/attachment.htm
 
  • cfg_lock Eric Heim

Reply via email to