Need Help: How to get the RJ45 serial console output

I really need some help to bringup this new platform. We have a new x86 
blade with 10G chip using etherboot to do the boot net.  It only has a 
RJ45 serial port that connected to a tip line ( no monitor connecter ). 
I can't get any etherboot output from the tip line. I have tried to 
build the image with:

CFLAGS+=       -DCONSOLE_DUAL -DCOMCONSOLE=0x3F8 -DCONSPEED=9600
or
CFLAGS+=       -DCONSOLE_FIRMWARE
or
CFLAGS+=       -DCONSOLE_SERIAL -DCOMCONSOLE=0x3F8 -DCONSPEED=9600

And none of them working.

Is there any other way to get the output same as the BIOS?

Thanks,
Joyce


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