[parisc-linux] EISA support

Alan Modra amodra@bigpond.net.au
Wed, 10 Oct 2001 20:31:10 +0930


On Wed, Oct 10, 2001 at 03:32:09AM -0500, Michael S. Zick wrote:
> 
> Old ISA boards only do a 10-bit decode and it is a frequent occurance
> that old drivers don't "clean up" the unused high 6 bits.
> 
> Would it be reasonable to mask port numbers to 10 bits for ISA in the
> inb/outb routines?

No.  Some old ISA boards do decode the top bits, and actually use them.