[U-Boot-Users] comment in mpc8xx - cpu_init.c - line 76

Line 76 in the most up-to-date version of .../u-boot/cpu/mpc8xx/cpu_init.c tells me NOT to change EBDF. Do I need to stick to this... advice?

The Hard Reset Configuration word of my MPC875-powered hardware is hard-wired to set the SCCR[EBDF] to 01 (half bus speed) at hard reset in the moment. I had hoped that I could change SCCR[EBDF] to 00 (full bus speed) via software if needed.

So - is the comment in the code some kind of serious warning, for the CPU will burn or crash if I try to change EBDF via software, or may I ignore it? I'd need the hardware guys to put in some additional jumper in case I can't change SCCR[EBDF] by software for some reason.

Thanks for your time,

Peter Asemann