diff options
author | Arnd Bergmann <arnd@arndb.de> | 2011-10-20 09:14:25 -0400 |
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committer | Arnd Bergmann <arnd@arndb.de> | 2011-10-20 09:14:25 -0400 |
commit | b4cbb8a4e602ea77b0525d06eff89c6a6070dab3 (patch) | |
tree | a5dd723679582505ef3905c90f0c2c032d191b94 /arch/arm/Kconfig | |
parent | 526b264163068f77c5f2409031f5e25caf3900a9 (diff) | |
parent | c5d7a9230e5e277f262b6806b7f4d6b35de5a3fb (diff) |
Merge branch 'imx-features-for-arnd' of git://git.pengutronix.de/git/imx/linux-2.6 into imx/devel
Conflicts:
arch/arm/mach-mx5/clock-mx51-mx53.c
arch/arm/mach-mx5/devices-imx53.h
Diffstat (limited to 'arch/arm/Kconfig')
-rw-r--r-- | arch/arm/Kconfig | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 975b5ddc60e9..3bf38c84fd23 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig | |||
@@ -1272,6 +1272,32 @@ config ARM_ERRATA_754327 | |||
1272 | This workaround defines cpu_relax() as smp_mb(), preventing correctly | 1272 | This workaround defines cpu_relax() as smp_mb(), preventing correctly |
1273 | written polling loops from denying visibility of updates to memory. | 1273 | written polling loops from denying visibility of updates to memory. |
1274 | 1274 | ||
1275 | config ARM_ERRATA_364296 | ||
1276 | bool "ARM errata: Possible cache data corruption with hit-under-miss enabled" | ||
1277 | depends on CPU_V6 && !SMP | ||
1278 | help | ||
1279 | This options enables the workaround for the 364296 ARM1136 | ||
1280 | r0p2 erratum (possible cache data corruption with | ||
1281 | hit-under-miss enabled). It sets the undocumented bit 31 in | ||
1282 | the auxiliary control register and the FI bit in the control | ||
1283 | register, thus disabling hit-under-miss without putting the | ||
1284 | processor into full low interrupt latency mode. ARM11MPCore | ||
1285 | is not affected. | ||
1286 | |||
1287 | config ARM_ERRATA_764369 | ||
1288 | bool "ARM errata: Data cache line maintenance operation by MVA may not succeed" | ||
1289 | depends on CPU_V7 && SMP | ||
1290 | help | ||
1291 | This option enables the workaround for erratum 764369 | ||
1292 | affecting Cortex-A9 MPCore with two or more processors (all | ||
1293 | current revisions). Under certain timing circumstances, a data | ||
1294 | cache line maintenance operation by MVA targeting an Inner | ||
1295 | Shareable memory region may fail to proceed up to either the | ||
1296 | Point of Coherency or to the Point of Unification of the | ||
1297 | system. This workaround adds a DSB instruction before the | ||
1298 | relevant cache maintenance functions and sets a specific bit | ||
1299 | in the diagnostic control register of the SCU. | ||
1300 | |||
1275 | endmenu | 1301 | endmenu |
1276 | 1302 | ||
1277 | source "arch/arm/common/Kconfig" | 1303 | source "arch/arm/common/Kconfig" |