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-rw-r--r--arch/arm/mm/proc-v7.S6
1 files changed, 4 insertions, 2 deletions
diff --git a/arch/arm/mm/proc-v7.S b/arch/arm/mm/proc-v7.S
index 2c559ac38142..e70a73731eaa 100644
--- a/arch/arm/mm/proc-v7.S
+++ b/arch/arm/mm/proc-v7.S
@@ -363,11 +363,13 @@ __v7_setup:
orreq r10, r10, #1 << 6 @ set bit #6
mcreq p15, 0, r10, c15, c0, 1 @ write diagnostic register
#endif
-#ifdef CONFIG_ARM_ERRATA_751472
- cmp r6, #0x30 @ present prior to r3p0
+#if defined(CONFIG_ARM_ERRATA_751472) && defined(CONFIG_SMP)
+ ALT_SMP(cmp r6, #0x30) @ present prior to r3p0
+ ALT_UP_B(1f)
mrclt p15, 0, r10, c15, c0, 1 @ read diagnostic register
orrlt r10, r10, #1 << 11 @ set bit #11
mcrlt p15, 0, r10, c15, c0, 1 @ write diagnostic register
+1:
#endif
3: mov r10, #0
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