modified start.S for debugging

jad13041 · Jan 14, 2020 · f63af60 · f63af60
1 parent 8061162
commit f63af60
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Showing 2 changed files with 8 additions and 2 deletions.
diff --git a/arch/powerpc/cpu/mpc85xx/start.S b/arch/powerpc/cpu/mpc85xx/start.S
@@ -1247,9 +1247,11 @@ _start_of_vectors:
 	MCK_EXCEPTION(0x200, MachineCheck, MachineCheckException)
 
 /* Data Storage exception. */
+	printf("data\n");
 	STD_EXCEPTION(0x0300, DataStorage, UnknownException)
 
 /* Instruction Storage exception. */
+	printf("inst\n");
 	STD_EXCEPTION(0x0400, InstStorage, UnknownException)
 
 /* External Interrupt exception. */
@@ -1278,10 +1280,14 @@ ProgramCheck:
 	STD_EXCEPTION(0x0800, FPUnavailable, UnknownException)
 	STD_EXCEPTION(0x0900, SystemCall, UnknownException)
 	STD_EXCEPTION(0x0a00, Decrementer, timer_interrupt)
+	printf("interval\n");
 	STD_EXCEPTION(0x0b00, IntervalTimer, UnknownException)
+	printf("watchdog\n");
 	STD_EXCEPTION(0x0c00, WatchdogTimer, UnknownException)
-
+
+	printf("dataTLB\n");
 	STD_EXCEPTION(0x0d00, DataTLBError, UnknownException)
+	printf("tlbe\n");
 	STD_EXCEPTION(0x0e00, InstructionTLBError, UnknownException)
 
 	CRIT_EXCEPTION(0x0f00, DebugBreakpoint, DebugException )

diff --git a/arch/powerpc/cpu/mpc85xx/traps.c b/arch/powerpc/cpu/mpc85xx/traps.c
@@ -88,7 +88,7 @@ static void print_backtrace(unsigned long *sp)
 void show_regs(struct pt_regs *regs)
 {
 	int i;
-	printf("confirm I'm in mpc85xx\n");
+	printf("confirm I'm in traps.c for mpc85xx \n");
 	printf("NIP: %08lX XER: %08lX LR: %08lX REGS: %p TRAP: %04lx DAR: %08lX\n",
 	       regs->nip, regs->xer, regs->link, regs, regs->trap, regs->dar);
 	printf("MSR: %08lx EE: %01x PR: %01x FP: %01x ME: %01x IR/DR: %01x%01x\n",