you mean that PCI card works?From: Richard Smith <[EMAIL PROTECTED]> To: [EMAIL PROTECTED] CC: [EMAIL PROTECTED] Subject: Re: VGA Problem about 440bx chipset Date: Tue, 31 Aug 2004 10:33:35 -0500
Chiu Gerald wrote:
> I found the work done about vga are: > (1) allocate_vga_resource() in newpci.c > enbale io/mem of the vga adapter > then walk up the bridges setting the VGA enable
That should all be done already.
> (2) copy the vga bios to 0xc0000 using adlo,and run bochs bios. > I'm not sure if it had initilized the vga controller enough. And I
You will get a vga bios boot screen if it works.
> found there are some registers about AGP from 440bx northbridge > datasheet ( 82443bx hostbridge/controller),such as AGP capability > identifier register,AGP command register,AGP status register... > But this work hadn't been done in linuxbios,maybe I need to set these > registers correctly according to the datasheet to enable AGP?
This is probally your problem. None of the AGP stuff is setup in the 440bx code. Only PCI cards have been used to date. You will have to write AGP init code.
Now I changed to a PCI video card,and bochs had run the vga bios,but still nothing happened!
I have no idea what should I do next.
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