[coreboot] Holding the s2895 in reset powers off the machine
mylesgw at gmail.com
Wed Jul 8 00:50:55 CEST 2009
On Tue, Jul 7, 2009 at 4:46 PM, Peter Stuge <peter at stuge.se> wrote:
> Myles Watson wrote:
> > > Just for my interest, but why does someone need to power on a
> > > system while holding the reset button?
> > In this case it is to allow my FPGA time to initialize (or for me
> > to reprogram it) before the Opteron tries to set up HyperTransport
> > communication with it.
> For an ugly hack<tm> maybe it would work to pulse the reset.
Maybe. I'd have to use a signal generator, though. HyperTransport
initialization is pretty fast.
> Do the two boards have the same chipset?
Yes, they're both nvidia ck804 + amd 8131. They have different superIOs,
though. The soft_reset and hard_reset code is in the ck804 code.
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