Merge branch 'depends/rmk/devel-stable' into next/board

[pandora-kernel.git] / arch / arm / Kconfig

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 2686959..7bbb035 100644 (file)
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -861,6 +861,7 @@ config ARCH_U300
        select CLKDEV_LOOKUP
        select HAVE_MACH_CLKDEV
        select GENERIC_GPIO
+       select ARCH_REQUIRE_GPIOLIB
        select NEED_MACH_MEMORY_H
        help
          Support for ST-Ericsson U300 series mobile platforms.
@@ -1310,6 +1311,20 @@ config ARM_ERRATA_364296
          processor into full low interrupt latency mode. ARM11MPCore
          is not affected.
 
+config ARM_ERRATA_764369
+       bool "ARM errata: Data cache line maintenance operation by MVA may not succeed"
+       depends on CPU_V7 && SMP
+       help
+         This option enables the workaround for erratum 764369
+         affecting Cortex-A9 MPCore with two or more processors (all
+         current revisions). Under certain timing circumstances, a data
+         cache line maintenance operation by MVA targeting an Inner
+         Shareable memory region may fail to proceed up to either the
+         Point of Coherency or to the Point of Unification of the
+         system. This workaround adds a DSB instruction before the
+         relevant cache maintenance functions and sets a specific bit
+         in the diagnostic control register of the SCU.
+
 endmenu
 
 source "arch/arm/common/Kconfig"