Re: [coreboot] What is the purpose of hard_reset function?

[Myles Watson]

I've seen it used for HyperTransport.  HT settings survive a warm_reset,
but not a hard_reset.  I'm not sure if that's the only case, though.

Thanks,
Myles

On Thu, Jul 4, 2013 at 1:23 PM, Andrew Wu  wrote:
> Hello,
>
> I am porting coreboot to our own product(Vortex86EX). I see there is a
> function called "hard_reset". Some boards implements this function, and
> some don't. Looks like each different mainboard has different
> implementation of hard_reset.
>
> Now I just wrote a blank hard_reset function, but maybe it is not right.
>
> So what is the purpose of this function? What should I put inside this
> function? To reset the system, why not just use system port(92h port)?