Re: [Etherboot-developers] Etherboot questions

[<ebi...@ln...>]

Paul <pau...@vi...> writes:
> 
> OK - I'll have a look at where etherboot uses the clock - My embedded PC
> has an AMD Elan 520 processor on it which has standard PC stuff
> integrated along with it.  
> 
> I have only just started looking at ROLO and Etherboot source code so
> I'm not exactly sure what I need to do yet.  I didn't see pci bus
> enumeration/resource allocation going on in ROLO so I am assuming that
> this is left to Linux.  However, clearly the PCI registers in the
> ethernet device will need to be enabled - and perhaps the interrupt? -
> again I haven't yet concluded whether Etherboot uses an interrupt... 

If you get to the point where you need this it may be worth getting
LinuxBIOS going or at least looking at the source.  It already does
the pci bus enumeration/resource allocation.

LinuxBIOS may be over kill for an embedded system like that though.

> If an etherboot build can provide me with a BIOS extension ROM image for
> my PCI ethernet controller device then I can put it straight into my
> boot PROM at the appropriate address.  ROLO doesn't appear to do any
> searching for BIOS extensions but this shouldn't be too much of a
> problem to add some code so that it finds the image provided by
> etherboot.
> 
> Thanks,

Welcome and good luck.

Eric