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Diffstat (limited to 'arch/ppc/kernel/head_fsl_booke.S')
-rw-r--r--arch/ppc/kernel/head_fsl_booke.S6
1 files changed, 4 insertions, 2 deletions
diff --git a/arch/ppc/kernel/head_fsl_booke.S b/arch/ppc/kernel/head_fsl_booke.S
index 8d60fa99fc4..dd86bbed762 100644
--- a/arch/ppc/kernel/head_fsl_booke.S
+++ b/arch/ppc/kernel/head_fsl_booke.S
@@ -1,6 +1,4 @@
/*
- * arch/ppc/kernel/head_fsl_booke.S
- *
* Kernel execution entry point code.
*
* Copyright (c) 1995-1996 Gary Thomas <gdt@linuxppc.org>
@@ -316,6 +314,7 @@ skpinv: addi r6,r6,1 /* Increment */
*/
lis r2,DBCR0_IDM@h
mtspr SPRN_DBCR0,r2
+ isync
/* clear any residual debug events */
li r2,-1
mtspr SPRN_DBSR,r2
@@ -1002,12 +1001,15 @@ _GLOBAL(giveup_fpu)
_GLOBAL(abort)
li r13,0
mtspr SPRN_DBCR0,r13 /* disable all debug events */
+ isync
mfmsr r13
ori r13,r13,MSR_DE@l /* Enable Debug Events */
mtmsr r13
+ isync
mfspr r13,SPRN_DBCR0
lis r13,(DBCR0_IDM|DBCR0_RST_CHIP)@h
mtspr SPRN_DBCR0,r13
+ isync
_GLOBAL(set_context)