[coreboot] Asus M2V-MX SE: Interrupt issues

[mrnuke]

On 12/15/2013 06:23 PM, Paul Menzel wrote:
> finally I was able to test coreboot (master with SeaBIOS) on my Asus
> M2V-MX SE. Unfortunately GNU/Linux does not get to the LUKS passphrase
> prompt.
> [...]
>         [   31.848224] ata4.00: failed command: READ DMA
>         [   31.852644] ata4.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in
>         [   31.852644]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
>         [   31.867303] ata4.00: status: { DRDY }

This looks to me like the interrupt routing is not set up properly. VIA
chipsets are very peculiar about the way they like their interrupts
routed. Which INT line to which PIRQ, then which PIRQ to which interrupt
on the PIC, and this final result must be reflected by the interrupt
tables. Is it just the SATA interrupt that's dead, or are keyboard and
friends also unresponsive?

Alex