Re: [Qemu-ppc] [PATCH 11/15] ppc: Add 460EX embedded CPU

[David Gibson]

On Wed, Aug 23, 2017 at 11:08:16AM +0200, BALATON Zoltan wrote:
> On Wed, 23 Aug 2017, David Gibson wrote:
> > On Sun, Aug 20, 2017 at 07:23:05PM +0200, BALATON Zoltan wrote:
> > > Despite its name it is a 440 core CPU
> > 
> > As I recall 460 was supposed to be a 440 with SMP support.  Except
> > they screwed up the cache coherence, so it's basically unusable for
> > SMP (at least with Linux).  They finally got 440 SMP right in 470
> > IIRC.
> > 
> > Or are you saying that the 460EX is more 440 like than other 460 cpus?
> 
> AFAIK this SoC really has a 440 core with some of the embedded devices (such
> as PCIe and SDRAM controller) similar to real 460 core SoCs, so its name is
> a bit misleading. It definitely does not have a 460 CPU core so it's more
> like 440 than other 460 core SoCs.

Ok, noted.

-- 
David Gibson                    | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au  | minimalist, thank you.  NOT _the_ _other_
                                | _way_ _around_!
http://www.ozlabs.org/~dgibson

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