Merge branches 'at91', 'ep93xx', 'errata', 'footbridge', 'fncpy', 'gemini', 'irqdata...

[~andy/linux] / arch / arm / Kconfig

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 2d0a1dc15994bfb8e3de0641934c89ce11fcd2bb..38bf684448e72b41295c662ef617fb02e9acea97 100644 (file)
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -346,7 +346,7 @@ config ARCH_FOOTBRIDGE
        bool "FootBridge"
        select CPU_SA110
        select FOOTBRIDGE
-       select ARCH_USES_GETTIMEOFFSET
+       select GENERIC_CLOCKEVENTS
        help
          Support for systems based on the DC21285 companion chip
          ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
@@ -875,6 +875,16 @@ config PLAT_SPEAR
        help
          Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
 
+config ARCH_VT8500
+       bool "VIA/WonderMedia 85xx"
+       select CPU_ARM926T
+       select GENERIC_GPIO
+       select ARCH_HAS_CPUFREQ
+       select GENERIC_CLOCKEVENTS
+       select ARCH_REQUIRE_GPIOLIB
+       select HAVE_PWM
+       help
+         Support for VIA/WonderMedia VT8500/WM85xx System-on-Chip.
 endchoice
 
 #
@@ -1007,6 +1017,8 @@ source "arch/arm/mach-versatile/Kconfig"
 
 source "arch/arm/mach-vexpress/Kconfig"
 
+source "arch/arm/mach-vt8500/Kconfig"
+
 source "arch/arm/mach-w90x900/Kconfig"
 
 # Definitions to make life easier
@@ -1177,6 +1189,53 @@ config ARM_ERRATA_743622
          visible impact on the overall performance or power consumption of the
          processor.
 
+config ARM_ERRATA_751472
+       bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
+       depends on CPU_V7 && SMP
+       help
+         This option enables the workaround for the 751472 Cortex-A9 (prior
+         to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
+         completion of a following broadcasted operation if the second
+         operation is received by a CPU before the ICIALLUIS has completed,
+         potentially leading to corrupted entries in the cache or TLB.
+
+config ARM_ERRATA_753970
+       bool "ARM errata: cache sync operation may be faulty"
+       depends on CACHE_PL310
+       help
+         This option enables the workaround for the 753970 PL310 (r3p0) erratum.
+
+         Under some condition the effect of cache sync operation on
+         the store buffer still remains when the operation completes.
+         This means that the store buffer is always asked to drain and
+         this prevents it from merging any further writes. The workaround
+         is to replace the normal offset of cache sync operation (0x730)
+         by another offset targeting an unmapped PL310 register 0x740.
+         This has the same effect as the cache sync operation: store buffer
+         drain and waiting for all buffers empty.
+
+config ARM_ERRATA_754322
+       bool "ARM errata: possible faulty MMU translations following an ASID switch"
+       depends on CPU_V7
+       help
+         This option enables the workaround for the 754322 Cortex-A9 (r2p*,
+         r3p*) erratum. A speculative memory access may cause a page table walk
+         which starts prior to an ASID switch but completes afterwards. This
+         can populate the micro-TLB with a stale entry which may be hit with
+         the new ASID. This workaround places two dsb instructions in the mm
+         switching code so that no page table walks can cross the ASID switch.
+
+config ARM_ERRATA_754327
+       bool "ARM errata: no automatic Store Buffer drain"
+       depends on CPU_V7 && SMP
+       help
+         This option enables the workaround for the 754327 Cortex-A9 (prior to
+         r2p0) erratum. The Store Buffer does not have any automatic draining
+         mechanism and therefore a livelock may occur if an external agent
+         continuously polls a memory location waiting to observe an update.
+         This workaround defines cpu_relax() as smp_mb(), preventing correctly
+         written polling loops from denying visibility of updates to memory.
+
 endmenu
 
 source "arch/arm/common/Kconfig"
@@ -1391,7 +1450,7 @@ config AEABI
 
 config OABI_COMPAT
        bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
-       depends on AEABI && EXPERIMENTAL
+       depends on AEABI && EXPERIMENTAL && !THUMB2_KERNEL
        default y
        help
          This option preserves the old syscall interface along with the