[coreboot] proposed patch, notsigned off, comments welcome.

Tom Sylla tsylla at gmail.com
Mon May 12 15:32:35 CEST 2008

On Mon, May 12, 2008 at 12:51 AM, ron minnich <rminnich at gmail.com> wrote:
>  I don't actually see a difference from my end between an IRQ
>  (Interrupt request in old-speak) and a PCI INT (interrupt request in
>  old speak) but if you want to rename things, have at it. Code
>  attached, do your worst!

You do need to be careful about this. INTA could be hooked to IRQA (10
decimal). If you want to un-confuse yourself and others, you need to
have the proper terminology.

>  So notice that it appears when coreboot sets the VRs for INTAB and
>  INTCD, VSA is setting up the GPIOs as enabled and inverted. Useful to
>  know. Next steps are to see how the 22/23 registers are set up, and,
>  with luck, trace it all the way through and maybe even find the
>  problem. For now, however, the 3v PCI slot INTs are not working at
>  all, as far as I can tell. They're almost acting edge-triggered. I
>  think it's an artifact of sharing PCI INTs with the USB -- the
>  ethernet, which is attached in the same way (with the same wire!) as
>  the PCI slot, works just fine. It's very odd.

More information about the coreboot mailing list