About cache

[Xu, Li (GE, Research)]

You have to do so.
That will prevent CPU from fetching data or instructions from i-cache and d-cache
at the initialization time since the cache is not initialized yet.

	-----Original Message----- 
	From: linuxppc-embedded-bounces+li.xu=ge.com at ozlabs.org on behalf of enorm 
	Sent: Fri 9/29/2006 9:25 AM 
	To: linuxppc-embedded at ozlabs.org 
	Cc: 
	Subject: About cache
	
	

	Hi,
	
	I found in mpc85xx start.s, before doing any initialization it disabled
	 i-cache & d-cache. Must we do so? If we don't disable them what will it
	 cause?
	
	Best Regards
	Enorm