From efa35cf12d914d4caba942acd5a6c45f217de302 Mon Sep 17 00:00:00 2001 From: Grzegorz Bernacki Date: Fri, 15 Jun 2007 11:19:28 +0200 Subject: 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 Signed-off-by: Rafal Jaworowski Signed-off-by: Stefan Roese --- include/ppc405.h | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'include/ppc405.h') diff --git a/include/ppc405.h b/include/ppc405.h index 71ad12e515..6be2a50db7 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 */ -- cgit v1.2.1