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yaml
---
r: 288316
b: refs/heads/master
c: efbc74a
h: refs/heads/master
v: v3
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Will Deacon authored and Russell King committed Feb 27, 2012
1 parent 4e33815 commit d045531
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Showing 3 changed files with 3 additions and 5 deletions.
2 changes: 1 addition & 1 deletion [refs]
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@@ -1,2 +1,2 @@
---
refs/heads/master: 120213728c6407398428a5692cfa5004b520b274
refs/heads/master: efbc74ace95338484f8d732037b99c7c77098fce
2 changes: 1 addition & 1 deletion trunk/arch/arm/Kconfig
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Expand Up @@ -1280,7 +1280,7 @@ config ARM_ERRATA_743622
depends on CPU_V7
help
This option enables the workaround for the 743622 Cortex-A9
(r2p0..r2p2) erratum. Under very rare conditions, a faulty
(r2p*) erratum. Under very rare conditions, a faulty
optimisation in the Cortex-A9 Store Buffer may lead to data
corruption. This workaround sets a specific bit in the diagnostic
register of the Cortex-A9 which disables the Store Buffer
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4 changes: 1 addition & 3 deletions trunk/arch/arm/mm/proc-v7.S
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Expand Up @@ -230,9 +230,7 @@ __v7_setup:
mcreq p15, 0, r10, c15, c0, 1 @ write diagnostic register
#endif
#ifdef CONFIG_ARM_ERRATA_743622
teq r6, #0x20 @ present in r2p0
teqne r6, #0x21 @ present in r2p1
teqne r6, #0x22 @ present in r2p2
teq r5, #0x00200000 @ only present in r2p*
mrceq p15, 0, r10, c15, c0, 1 @ read diagnostic register
orreq r10, r10, #1 << 6 @ set bit #6
mcreq p15, 0, r10, c15, c0, 1 @ write diagnostic register
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