Two logs from pci startup

[Ronald G Minnich]

First log is from my linuxbios startup, for a copy go to
www.acl.lanl.gov/linuxbios.

Second is from 2.3.99 startup with pci debugging turned on.

Strange stuff on boot, comments about 64-bit addresses (?? set smoething
wrong in memory attributes in BAR?) etc. See what you think. If we can get
this one licked we're going to boot!!

Note the bogomips and mhz numbers actually make sense. This is good. Also
the APIC support in 2.3.99 seems to work on uniprocessors, yee ha.

ron

[fb-d] Two logs from pci startup

[Jeff Garzik]

oh yeah, you should also disable all expansion ROMs, which this code
doesn't do...

[fb-d] Two logs from pci startup

[Ronald G Minnich]

On Mon, 1 May 2000, Jeff Garzik wrote:
> oh yeah, you should also disable all expansion ROMs, which this code
> doesn't do...

yes but linux does.

I should be more specific. My only goal with this code is to get enough
PCI up to get linux to boot. Thus this code is only designed to do the
absolute minimum necessary and to let linux do the rest. If linux does
some things correctly (expansion roms, IRQs) then I don't want to
duplicate that work.

Thanks

ron

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[fb-d] Two logs from pci startup

[Jeff Garzik]

yet another thing to do...  If the PCI device supports ACPI, it needs to
be taken from the D3 to D0 state...

Jeff

[fb-d] Two logs from pci startup

[Ronald G Minnich]

On Mon, 1 May 2000, Jeff Garzik wrote:
> yet another thing to do...  If the PCI device supports ACPI, it needs to
> be taken from the D3 to D0 state...

Yuk, do devices start out in D3 on startup?

ron

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[fb-d] Two logs from pci startup

[Jeff Garzik]

also, this needs to write 0 (or some value) back to the register, before
it calls 'continue' for the !addr case:

PciWriteDword( bus, devfn, reg, 0xffffffff );
    		addr = PciReadDword( bus, devfn, reg );
    		if( addr == 0 )
    			continue;

[fb-d] Two logs from pci startup

[Ronald G Minnich]

On Mon, 1 May 2000, Jeff Garzik wrote:
> also, this needs to write 0 (or some value) back to the register, before
> it calls 'continue' for the !addr case:
>    		PciWriteDword( bus, devfn, reg, 0xffffffff );
>    		addr = PciReadDword( bus, devfn, reg );
>    		if( addr == 0 )
>    			continue;

Jeff, I think you just fixed one of my linux problems.

Thanks!

ron

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