On Tuesday 02 June 2009 15:23:57 Pierre Savary wrote:
Is it better to use or not D-cache and I-cache?
Depends a bit on the "application". From my experience I-Cache is most important. But for memory intensive applications (JFFS2 might be such a beast) D-cache could be very helpful as well. Best is to have both enabled of course.
Currently, in my config file, I have only #define CONFIG_CMD_CACHE What do I have to add?
Defining the cache commands doesn't insure that caches are really enabled. Some platforms don't support I- and/or D-cache in U-Boot. I can only speak for PPC4xx which has I-cache enabled and "usually" D-cache disabled (because of cache-coherency issues). This might be different on your platform. Again, just enabling the cache commands will most likely not help here.
Best regards, Stefan
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