ppc4xx: Clean up 440 exceptions handling

- Introduced dedicated switches for building 440 and 405 images required
  for 440-specific machine instructions like 'rfmci' etc.

- Exception vectors moved to the proper location (_start moved away from
  the critical exception handler space, which it occupied)

- CriticalInput now serviced (with default handler)

- MachineCheck properly serviced (added a dedicated handler and return
  subroutine)

- Overall cleanup of exceptions declared with STD_EXCEPTION macro (unused,
  unhandled and those not relevant for 4xx were eliminated)

- Eliminated Linux leftovers, removed dead code

Signed-off-by: Grzegorz Bernacki <gjb@semihalf.com>
Signed-off-by: Rafal Jaworowski <raj@semihalf.com>
Signed-off-by: Stefan Roese <sr@denx.de>

1 files changed, 1 insertions, 0 deletions

diff --git a/include/ppc4xx.h b/include/ppc4xx.h
index 67759c7..8cead66 100644
--- a/include/ppc4xx.h
+++ b/include/ppc4xx.h
@@ -22,6 +22,7 @@
 #ifndef	__PPC4XX_H__
 #define __PPC4XX_H__
 
+#define _START_OFFSET 0x2100
 
 #if defined(CONFIG_440)
 #include <ppc440.h>