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-rw-r--r--cpu/mpc5xxx/traps.c12
1 files changed, 7 insertions, 5 deletions
diff --git a/cpu/mpc5xxx/traps.c b/cpu/mpc5xxx/traps.c
index 5d43394523..2ee782b9c8 100644
--- a/cpu/mpc5xxx/traps.c
+++ b/cpu/mpc5xxx/traps.c
@@ -5,6 +5,7 @@
*
* Modified by Cort Dougan (cort@cs.nmt.edu)
* and Paul Mackerras (paulus@cs.anu.edu.au)
+ * fixed Machine Check Reasons by Reinhard Meyer (r.meyer@emk-elektronik.de)
*
* (C) Copyright 2000-2003
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
@@ -130,19 +131,20 @@ MachineCheckException(struct pt_regs *regs)
printf("Machine check in kernel mode.\n");
printf("Caused by (from msr): ");
printf("regs %p ",regs);
- switch( regs->msr & 0x0000F000)
+ /* refer to 603e Manual (MPC603EUM/AD), chapter 4.5.2.1 */
+ switch( regs->msr & 0x000F0000)
{
- case (1<<12) :
+ case (0x80000000>>12) :
printf("Machine check signal - probably due to mm fault\n"
"with mmu off\n");
break;
- case (1<<13) :
+ case (0x80000000>>13) :
printf("Transfer error ack signal\n");
break;
- case (1<<14) :
+ case (0x80000000>>14) :
printf("Data parity signal\n");
break;
- case (1<<15) :
+ case (0x80000000>>15) :
printf("Address parity signal\n");
break;
default:
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