[OpenBIOS] G3Beige OpenFirmware Tree?

[Programmingkid]

On Jan 25, 2013, at 11:20 AM, Mark Cave-Ayland wrote:

> On 25/01/13 09:48, Mark Morgan Lloyd wrote:
> 
>>> On 24/01/13 09:27, Mark Morgan Lloyd wrote:
>>> 
>>>> I've got one of those machines, set up for OS and Linux (i.e. it's a bit
>>>> fragile and I'd rather not try installing anything else on it). If that
>>>> sounds useful tell me what to do.
>>> 
>>> Thanks! I think perhaps a tarball of /proc/device-tree from Linux is
>>> what I need? There may be a utility to dump the tree from OS X too,
>>> but I'm not exactly sure what it is.
>> 
>> My OS is 9 (I think), I only use it for transferring control to Linux.
>> You have off-list mail created as below, note error messages of the type
>> indicated:
>> 
>> 0 2>root at pye-dev-05:/# tar -czf proc_device-tree.tar.gz /proc/device-tree
>> tar: Removing leading `/' from member names
>> tar: /proc/device-tree/perch: file changed as we read it
>> ..
>> 
>> Let me know if there's anything else I can do to help.
> 
> Hi Mark,
> 
> Thanks for doing this. So I've had a play with PearPC and I can make the CMD646ATA fail during its start method similar to the way that QEMU does by commenting out the IDE interface IRQ entry from the "interrupt-map" property. This seems to support my theory that the problem is related to interrupt mapping.
> 
> Now AIUI g3beige is an "Old World" Mac and so the interrupt information should be held in the "AAPL,interrupts" property. I've verified that both QEMU and OpenBIOS calculate the irq_line in the same way (based upon device id), however I do see that some of the "AAPL,interrupts" values contain more than one integer. I wonder what this is supposed to represent?
> 
> 
> ATB,
> 
> Mark.

I just wanted to add that my Ubuntu Linux 5 CD also fails to boot because of a problem with the CMD646 controller. Here is the error message:

[c0149ee4] ide_pci_register_driver+0x54/0x5c
[f100e634] cmd64x_ide_init+0x18/0x28 [cmd64x]
       cmd64x: can't be loaded
missing kernel or user mode driver cmd64x