Re: Problem with radeonfb on PowerPC 7448&MV64560

[Eduard Fuchs <edfuchs@uni-kassel.de>]

Am Mittwoch 18 M=E4rz 2009 00:05:00 schrieb Benjamin Herrenschmidt:
> On Tue, 2009-03-17 at 16:30 +0100, Eduard Fuchs wrote:
> > Hi all,
> >
> > since several days I'm trying to run an ATI 9250 (PCI) graphic card und=
er
> > Linux Kernel 2.6.27.19. Nevertheless without success. The kernel shows
> > the following message:
> >
> > videoboot: Booting PCI video card bus 0, function 0, device 7
> > biosEmu: undefined interrupt 15h called!
> > biosEmu/bios.int42: unknown function AH=3D0x0, AL=3D0x7, BL=3D0x0
>
> The above comes from some patches you added to the kernel ? You should
> probably do the softboot in the firmware instead...

Yes. I'm using the videoboot-2.6x.patch (this patch contain also the xf86em=
u=20
from www.scitechsoft.com). With this pach the radeon card work properly wit=
h=20
2.6.12 kernel version. On the 2.6.27 kernel the "videoboot" fetch the bios=
=20
from the video card and start them in the xf86emu.

Can I initialize the video card in uboot too?

>
> > radeonfb (0000:00:07.0): Cannot match card to OF node !
>
> The above should be mostly harmless.
>
> > RADEON: CHIP_FAMILY 10 (0xa)
> > RADEON: MMIO_BASE 0xf1058000
> > RADEON: MMIO_BASE_PHYS 0x88000000
> > radeonfb (0000:00:07.0): Found 0k of SDRAM 64 bits wide videoram
> > RADEON: Try map FB Phys 0x80000000, size 0, 16777216. 0
>
> The above sounds wrong, was the card properly initialized ? Looks like
> your videoboot failed...

I dont know what exactly happens when the xf86emu runs the video bios and i=
=20
have no idea how can i verify that the card was properly initialized.

Best regards

Eduard Fuchs