goal here is to get the P-5064 PCMCIA slots working, and serve as
the basis for P-6032 interrupt support.
PCMCIA interrupt auto-detection not working -- more work to be
done here.
- Compute the number of CPU pipeline cycles per second using the
mc146818.
- Use the COMPARE interrupt for the hardclock interrupt.
- Collapse all interrupt priorities into a single priority, and use
the CPU interrupt inputs to determine the interrupt source (local
device, PCI device, ISA device, etc.)
This allows us to have interrupt sharing.
them define __HAVE_PCIIDE_MACHDEP_COMPAT_INTR_ESTABLISH
in pci_machdep.h and pciide_map_compat_intr() only calls
pciide_machdep_compat_intr_establish() if that preprocessor
define exists.
Ports that don't need to do this no longer need to supply a
dummy function.
untested, since I have no P-4032 board, but it's no worse than
the current situation, which is "totally non-working P-4032
support in the ARC port, of all places".
support the P-5064, which has a QED RM5xxx CPU soldered on.
There is some skeletal support for the P-4032 (an older board, which
had an R4xxx CPU). There are some placeholders for the P-6032, which
is their newest board, but no real code yet (the P-6032 has a different
PCI controller, the Algorithmics BONITO).
There are still some (apprently softintr-related) problems with the
algor kernel, but it works well-enough to self-host.
Kudos to Allegro Networks for loaning me a P-5064 board on which to do
the port.
thorpej