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yaml
---
r: 277078
b: refs/heads/master
c: ba90c51
h: refs/heads/master
v: v3
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Dave Martin authored and Russell King committed Dec 23, 2011
1 parent 7038736 commit 295e243
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Showing 3 changed files with 6 additions and 4 deletions.
2 changes: 1 addition & 1 deletion [refs]
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@@ -1,2 +1,2 @@
---
refs/heads/master: e66dc7452af463ccd4360b1bb625c803e5327e3f
refs/heads/master: ba90c516bae79b5f8184d915bfce7eb280af61b1
2 changes: 1 addition & 1 deletion trunk/arch/arm/Kconfig
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Expand Up @@ -1282,7 +1282,7 @@ config ARM_ERRATA_743622

config ARM_ERRATA_751472
bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
depends on CPU_V7 && SMP
depends on CPU_V7
help
This option enables the workaround for the 751472 Cortex-A9 (prior
to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
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6 changes: 4 additions & 2 deletions trunk/arch/arm/mm/proc-v7.S
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Expand Up @@ -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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