Re: [PATCH 04/11] hw/ppc/mpc8544ds: Add platform bus

[Bin Meng]

Hi Bernhard,

On Sat, Sep 17, 2022 at 1:19 AM Bernhard Beschow <shentey@gmail.com> wrote:
>
> Am 16. September 2022 06:15:53 UTC schrieb Bin Meng <bmeng.cn@gmail.com>:
> >On Thu, Sep 15, 2022 at 11:29 PM Bernhard Beschow <shentey@gmail.com> wrote:
> >>
> >> Models the real device more closely.
> >
> >Please describe the source (e.g.: I assume it's MPC8544DS board manual
> >or something like that?) that describe such memory map for the
> >platform bus.
> >
> >Is this the eLBC bus range that includes the NOR flash device?
>
> Good point. My numbers come from a different board. I'll fix them according 
> to the  mpc8544ds.dts in the Linux tree.
>
> This will leave an eLBC memory window of just 8MB while my proprietary load 
> needs 64MB. My proprietary load doesn't seem to have 64 bit physical memory 
> support so I can't use e500plat either. Any suggestions?
>

Currently QEMU does not model the eLBC registers so these memory
regions have to be hardcoded, unfortunately. Once we support eLBC
memory map completely I think we can remove such limitations by having
QEMU dynamically create the memory map per programmed values.

I guess you have to create another machine for your board at this point.

Regards,
Bin