[OpenBIOS] QEMU PPC support for OpenBIOS

[Greg Watson]

Take a look at the briq code. I hand crafted the device tree, but I  
was able to get to the point of booting Linux from an IDE drive.  
Things failed at that point because I didn't have the interrupts set  
up correctly. There should not be any serious problems getting PPC to  
work.

Greg

On Jun 15, 2006, at 4:08 PM, Wessel, Jason wrote:

>
> I started porting the OpenBIOS to the PPC qemu, and I was curious  
> of the state of the PearPC portion of the OpenBIOS.  I thought I  
> check and ask if there is another branch or if someone was already  
> working in this area or had it working.
>
> I would be happy to collaborate and share some patches.
>
> Nothing really works at this point, but it is further along then  
> having nothing:
>
> >> =============================================================
> >> OpenBIOS 1.0RC1 [Jun 15 2006 16:42]
> >> current nvram:
> >> ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> >> ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> >> ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> >> ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> >> nvram error detected, zapping pram
> >> Initializing PCI devices...
> >> ide0: [io ports 0x1f0-0x1f7,0x3f6]
> >>     drive0 [ATA disk]: QEMU HARDDISK
> >>     drive1 [ATAPI floppy]: QEMU CD-ROM
> >> Initializing ADB driver
> >> Autobooting disabled - dropping into OpenFirmware
> No cdrom found
> Output device /pci/pci6666,6666 not found.
> /pci/via-cuda/adb has no read method.
> Output device screen not found.
> Input device keyboard not found.
>
> 0 >
>
>
> I get that on the serial port for PPC qemu, and now I have to work  
> backwards to fix it up correctly.  Serial input doesn't work quite  
> right and that will probably be the first hurdle.
>
> Any pointers to active or recent projects in this area would be  
> appreciated.
>
> Cheers,
> Jason.
>
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