[ARM] tegra: Centralize macros to define debug uart base

[firefly-linux-kernel-4.4.55.git] / arch / arm / Kconfig

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 553b7cf17bfb0bac057eaedf0402a0bca2aa47e8..6d122de8869339f68976da7ff48083ffb7cf7e89 100644 (file)
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -132,6 +132,14 @@ config RWSEM_GENERIC_SPINLOCK
 config RWSEM_XCHGADD_ALGORITHM
        bool
 
+config ARCH_HAS_CPU_IDLE_WAIT
+       bool
+       default y
+
+config ARCH_HAS_DEFAULT_IDLE
+       bool
+       default y
+
 config ARCH_HAS_ILOG2_U32
        bool
 
@@ -271,7 +279,6 @@ config ARCH_AT91
        bool "Atmel AT91"
        select ARCH_REQUIRE_GPIOLIB
        select HAVE_CLK
-       select ARCH_USES_GETTIMEOFFSET
        help
          This enables support for systems based on the Atmel AT91RM9200,
          AT91SAM9 and AT91CAP9 processors.
@@ -566,6 +573,7 @@ config ARCH_TEGRA
        select HAVE_CLK
        select COMMON_CLKDEV
        select ARCH_HAS_BARRIERS if CACHE_L2X0
+       select ARCH_HAS_CPUFREQ
        help
          This enables support for NVIDIA Tegra based systems (Tegra APX,
          Tegra 6xx and Tegra 2 series).
@@ -1051,6 +1059,32 @@ config ARM_ERRATA_460075
          ACTLR register. Note that setting specific bits in the ACTLR register
          may not be available in non-secure mode.
 
+config ARM_ERRATA_742230
+       bool "ARM errata: DMB operation may be faulty"
+       depends on CPU_V7 && SMP
+       help
+         This option enables the workaround for the 742230 Cortex-A9
+         (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
+         between two write operations may not ensure the correct visibility
+         ordering of the two writes. This workaround sets a specific bit in
+         the diagnostic register of the Cortex-A9 which causes the DMB
+         instruction to behave as a DSB, ensuring the correct behaviour of
+         the two writes.
+
+config ARM_ERRATA_742231
+       bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
+       depends on CPU_V7 && SMP
+       help
+         This option enables the workaround for the 742231 Cortex-A9
+         (r2p0..r2p2) erratum. Under certain conditions, specific to the
+         Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
+         accessing some data located in the same cache line, may get corrupted
+         data due to bad handling of the address hazard when the line gets
+         replaced from one of the CPUs at the same time as another CPU is
+         accessing it. This workaround sets specific bits in the diagnostic
+         register of the Cortex-A9 which reduces the linefill issuing
+         capabilities of the processor.
+
 config PL310_ERRATA_588369
        bool "Clean & Invalidate maintenance operations do not invalidate clean lines"
        depends on CACHE_L2X0 && ARCH_OMAP4