On Thu, 2002-04-11 at 13:47, Eric W. Biederman wrote: > > And this is what really worries me about it. Will this continue > to work. Will this really reach the ISA bus. If it doesn't > reach the ISA bus how will the timing change? > > I don't have a problem with a udelay() that just does an inb/outb for > timing reasons but... > > Eric
On Intel PIIX4s, I/O to port 80 will go to the ISA bus, eat up time, and pound on a benign (POST) port. But what if you don't have an ISA bridge or PCI POST card which snags that address?
