Enable a default hw irq handler.

Also, only route hw irqs to their handlers when they are enabled.
    (This ensures that if a subsystem is disabled that the default
    hwirq handler will be used.)
Add helper macros to declare the extern asm handlers.
Always enable the RTC hwirq at startup (as opposed to when it is first
    used).
Fix bug in default handler - wrong bit was used for checking the
    cascaded irq.
10 files changed
tree: fb11094ee8d95707a8e6b1668b72e7d3c3bd4e3b
  1. .gitignore
  2. COPYING
  3. Makefile
  4. README
  5. TODO
  6. src/
  7. tools/