diff options
Diffstat (limited to 'arch/powerpc/kernel/head_fsl_booke.S')
| -rw-r--r-- | arch/powerpc/kernel/head_fsl_booke.S | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/arch/powerpc/kernel/head_fsl_booke.S b/arch/powerpc/kernel/head_fsl_booke.S index 8d60fa99fc4..dd86bbed762 100644 --- a/arch/powerpc/kernel/head_fsl_booke.S +++ b/arch/powerpc/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) |