diff options
| author | Grzegorz Bernacki <gjb@semihalf.com> | 2007-06-15 11:19:28 +0200 |
|---|---|---|
| committer | Stefan Roese <sr@denx.de> | 2007-06-15 11:19:28 +0200 |
| commit | efa35cf12d914d4caba942acd5a6c45f217de302 (patch) | |
| tree | 00db80c8d208b90bd4e6530559416d5bf43ec51e /include/ppc405.h | |
| parent | 725671ccd2cd04c9ebc50c9e5a94dd8cbade66b7 (diff) | |
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>
Diffstat (limited to 'include/ppc405.h')
| -rw-r--r-- | include/ppc405.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/ppc405.h b/include/ppc405.h index 71ad12e5159..6be2a50db75 100644 --- a/include/ppc405.h +++ b/include/ppc405.h @@ -27,6 +27,15 @@ /*--------------------------------------------------------------------- */ #define srr2 0x3de /* save/restore register 2 */ #define srr3 0x3df /* save/restore register 3 */ + + /* + * 405 does not really have CSRR0/1 but SRR2/3 are used during critical + * exception for the exact same purposes - let's alias them and have a + * common handling in crit_return() and CRIT_EXCEPTION + */ + #define csrr0 srr2 + #define csrr1 srr3 + #define dbsr 0x3f0 /* debug status register */ #define dbcr0 0x3f2 /* debug control register 0 */ #define dbcr1 0x3bd /* debug control register 1 */ |