common flash hw write enable methods
Ronald G. Minnich
rminnich at lanl.gov
Wed Dec 4 09:47:00 CET 2002
On Wed, 4 Dec 2002, Stefan Reinauer wrote:
> Some machines, like my Thinkpad A21p, reboot immediately on probing, if
> the right GPIO is not set. Pretty ugly.
yes, this is an iterative process with many landmines.
> > get the flash burner for this board, run under a simulator of some sort,
> > and watch the IOs. Or put a PCI bus analyzer on the machine, run the flash
> > program, and watch the IOs. It's not going to be fun.
> ouch! sounds like this gets nasty quickly.
actually the PCI analyzer is the easiest, it allowed us to figure out
L440GX flash and ASUS SMBUS issues in about 15 minutes.
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