Re: cache line size (was Help booting MBX through bootd)

In message [off-list ref] you write:

quoted

But the cache line size differs even for different models of the  8xx
family!

Are you sure?

Well, yes. But not exact enough. I silently included the 82x0 in  the
8xx family.

I browsed my 821, 823, 850 and 860 manuals and I found out that Motorola
seem to have 2 different cpu cores.

budget   core: 850/823 - 8/8 TLBs, 2/1 Kbyte cache.
standard core: 860/821 - 32/32 TLBs, 4/4 Kbyte cache.
deluxe   core: 860P    - 32/32 TLBs, 16/8 Kbyte cache

All seem to have 4 words a 32 bits in each cache line.

You are right.

What about the other cpus; 60x, 750/740?

32 bytes per cache line = 8 32-bit words

And the other embedded ones; 8240/8260?

8 words a 32 bits in each cache line? 

Yes, the 82x0 have 8 32-bit words in each line.

Wolfgang Denk

-- 
Phone: (+49)-8142-4596-87  Fax: (+49)-8142-4596-88  Email: wd@denx.de
If you think the problem is bad now, just wait until we've solved it.
                                                        Epstein's Law

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