MultiPPC - was: memory map

[Geir Frode Raanes]

On Mon, 24 Apr 2000, Dan Malek wrote:

> I think the [8260] implementation is pretty slick, especially when
> you look at the multiprocessor implementation.

Hold it! What multiprocessor implementation? The 8260 contains a
PPC603e CPU kernel. To my knowledge, the 603 does not support
multiprocessor setups. For that you need a 604 or larger.
Is there something different with the 8260 implementation?
Do I need to read up on the datasheet here?

The reason I ask is that I would love to run a 8260 and a 8240
in a multiprocessor setup. But only if there is dedicated hardware
to support it and a Linux kernel capable of handling it. The IBM
405gp is a nice system-on-a-chip with PCI, but I would defenitely
prefer the CPM of 8260. But the 8260 does not come with PCI and
HW DMA channels as yet. I could of cause use a separate PCI
bridge, but if I need a separate chip I would prefer too see
this chip do some useful work too. Only in this kind of setup,
I would need some way of guaranteeing that the correct CPU
issues instructions to onchip peripherials. Guess this ruins it.

BTW, has anyone looked into the possibility of implementing
IEEE-1394 FireWire on a FCC of 8260? Motorola microcode perhaps?
Probabely a no-go as USB was hardwired on the 823, but perhaps
in transparent mode and in combination with a SCC for control
of external FPGA. Food for thought.

--
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  Never ever underestimate the power of human stupidity.
  -Robert Anson Heinlein

		GeirFRS at invalid.and.so.forth
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