> If all the AX88190-based cards decode only 10-bit i/o
> address lines, how about applying 10-bit mask such as
> 
> -	if ((last_liobase == psc->sc_pcioh.addr)
> +	if (((last_liobase & 0x3ff) == (psc->sc_pcioh.addr & 0x3ff))
> 	    || (last_liobase != new_liobase))
> 
> instead of removing it?

Very near: the card told us about the 10-bit decode (mask=a in the attach
line). We should use that to dynamically calculate the 0x3ff in your code.

Martin