> > > The mips_io_port_base is 0xa0000000. Whereas the i8259 chip is at
> > > 0xb0000000. The 0xa000000 value could be wrong. I will give it a try.
> > As your board must have RAM at physical address zero 0xa0000000 is almost
> > certainly a wrong value.
> Your right. The address of 0xb000000 is bogus. This is the value from the
> old code. I will migrate the code over to the i8259.c stuff now. Thanks.
Actually looking threw other mips branches now I see what the 0xb000000
is. It is the isa_port_base.