[coreboot] Help with RX serial interrupts?

[Alex G.]

Are you sure it's not just a bad PIC/APIC config?

Alex

On 02/08/2011 10:15 PM, Votier, Sean (DS-1) wrote:
> Designation: Non-SSA/Finmeccanica
> 
> Hi all.
> 
> I would like to apologise for being a lurker on this list and only
> popping up when I need help. But I need help………..
> 
> I’ve run into an issue that has been stumping my for the last couple of
> weeks.
> 
> I’m developing bios code for a GE CR-11 Compact PCI board.
> 
> The chips I’m working with are:
> 
> 1.06 Mhz Pentium M
> 
> E7520 Northbridge
> 
> 6300ESB Southbridge
> 
> I’m initialising the SIU in the Southbridge. I have the port configured.
> I can see data transmitted and received from and to the serial port
> using a scope on the serial cable and also on my emulator but I can’t
> seem to get the receive side to generate an interrupt. Does anyone have
> experience with serial interrupts on this hardware? Can you run through
> the steps involved for a very simple rx interrupt config just in case I
> missed something in the Intel docs. Know of an pitfalls?