[OpenBIOS] [PATCH 0/4] Changes for MorphOS

[Mark Cave-Ayland]

On 08/03/14 16:28, Tarl Neustaedter wrote:

> Wow. Apple creates a name property for the root containing
> "device-tree"? That's bizarre.
>
> In which case, assuming you're trying to emulate Apple, you'll have to
> live with it. I will note that Apple, IBM, Sun and Firmworks diverged on
> their implementations of IEEE 1275, to the degree that some card vendors
> had to have different FCodes for Sun systems vs Apple systems.
>
> The name property in the root (like all other name properties) isn't
> supposed to be meaningful to code, just useful for printing. Anything
> where code is supposed to match drivers to nodes should use the
> "compatible" property. But if the client is written to use the name
> property, we have to live with it and supply what the client needs.
>
> I don't know if you'd want to include that change under CONFIG_PPC or
> perhaps under some flag for Apple emulation - IBM's PPC systems may not
> follow Apple's lead on that.

Yeah; I suspect this is going to have to be one behaviour that we are 
going to have to end up emulating for compatibility purposes.

I think the best solution is going to be to move the default device name 
from forth/device/tree.fs into the individual per-architecture 
arch/*/tree.fs files and then customise the PPC one as appropriate.


ATB,

Mark.