Re: [Qemu-devel] [Qemu-ppc] [RFC PATCH 09/12] ppc440: Add emulation of plb-pcix controller found in some 440 SoCs

[BALATON Zoltan]

On Fri, 18 Aug 2017, François Revol wrote:
> Le 18/08/2017 à 03:53, David Gibson a écrit :
> > On Sun, Aug 13, 2017 at 07:04:38PM +0200, BALATON Zoltan wrote:
> >
> > You know I'm going to say it, right: needs a commit message.
> >
> > What's a "plb-pcix", and what's an example of a 440 SoCs which has it.
>
> IIRC that's the PCI(express) controller, which is not memory-mapped but
> inside the DCR address space, so accessed from the PLB.

This is the PCI(X) controller only, the PCIe(xpress) controller is 
(partially) implemented in sam460ex.c 
TYPE_PPC460EX_PCIE_HOST/"ppc460ex-pcie-host". The plb-pcix is the 
compatible name the fdt refers to. I only know of the 460EX that has it 
but probably other similar SoCs (like some 440 variants) also have this 
kind of PCI controller (according to #defines in U-Boot source but don't 
remember the details).

Regards,
BALATON Zoltan