Custom board based on PPC405 and PCI Graphic controler problem.

powerpc440 powerpc440 at
Mon Apr 2 06:49:48 PDT 2007

Alex Deucher wrote:
> On 3/29/07, powerpc440 <powerpc440 at> wrote:
>> Michel Dänzer wrote:
>> > On Wed, 2007-03-28 at 16:12 +0200, powerpc440 wrote:
>> >
>> >> I have a custom board, based on PowerPC ppc405ep CPU. On the board
>> are 3 PCI
>> >> devices: sATA, USB and PCI Slot. sATA, USB and PCI working already
>> good, but
>> >> still I have some troubles with a Graphic Controler on PCI slot.
>> The graphic
>> >> card is standard 3.3V PCI Radeon 7000. I have compile xorg 7.2,
>> and try to
>> >> start the X server with radeon driver. The X server starts, the
>> monitor is
>> >> found with the correct model, but no picture is appears. After
>> several seconds
>> >> the whole board freeze.
>> >>
>> >
>> > The radeon drivers rely on the firmware for low-level
>> initialization of
>> > the card. Does it do that? Do you get a picture on bootup before the X
>> > server starts?
>> >
>> >
>> >
>> Thank you for the answer!
>> I don't have any firmware on the board. The boot loader (u-boot)
>> initialize the units: CPU, Memory, PCI, etc., but does nothing with
>> Graphic adapters. I can see only that, the video card is found on PCI
>> bus ("lspci -v" give to me: Class 0380: 1002:5940 (rev 01) - Radeon 9200
>> Pro). The very first interaction with the card is xorg's radeon driver.
>> Now I see why no picture appears before or after X server starts.
>> Are there any driver, or some another possibility, trough I can make
>> graphic low-level initialization before X server or kernel fb device?
>> Thank you in advance!
> you might be able to post it with a vbe tool and x86emu.
> Alex

I can't compile vbetools on my  PPC board, seems to be platform
compatibility problems, also with x86emu key enabled. I think that,
vbetools till now is only for x86, and AMD 64bit platforms suitable.
Are there another possibility, trough I can initialize the Graphic
Adapter for non x86 platforms?
Another question - can a xorg's nVidia driver working without  firmware
for low-level init?

Thank you in advance!
Best regards

Zhivko Yordanov

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