Merge branch 'timers/posix-cpu-timers-for-tglx' of

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

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 53d3a356f61f877acebc12a22fc7b3d884a7cfc8..b02e6bbc1b46e9a73f555f291f884d953b9a44aa 100644 (file)
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1088,6 +1088,20 @@ if !MMU
 source "arch/arm/Kconfig-nommu"
 endif
 
+config PJ4B_ERRATA_4742
+       bool "PJ4B Errata 4742: IDLE Wake Up Commands can Cause the CPU Core to Cease Operation"
+       depends on CPU_PJ4B && MACH_ARMADA_370
+       default y
+       help
+         When coming out of either a Wait for Interrupt (WFI) or a Wait for
+         Event (WFE) IDLE states, a specific timing sensitivity exists between
+         the retiring WFI/WFE instructions and the newly issued subsequent
+         instructions.  This sensitivity can result in a CPU hang scenario.
+         Workaround:
+         The software must insert either a Data Synchronization Barrier (DSB)
+         or Data Memory Barrier (DMB) command immediately after the WFI/WFE
+         instruction
+
 config ARM_ERRATA_326103
        bool "ARM errata: FSR write bit incorrect on a SWP to read-only memory"
        depends on CPU_V6
@@ -1190,6 +1204,16 @@ config PL310_ERRATA_588369
           is not correctly implemented in PL310 as clean lines are not
           invalidated as a result of these operations.
 
+config ARM_ERRATA_643719
+       bool "ARM errata: LoUIS bit field in CLIDR register is incorrect"
+       depends on CPU_V7 && SMP
+       help
+         This option enables the workaround for the 643719 Cortex-A9 (prior to
+         r1p0) erratum. On affected cores the LoUIS bit field of the CLIDR
+         register returns zero when it should return one. The workaround
+         corrects this value, ensuring cache maintenance operations which use
+         it behave as intended and avoiding data corruption.
+
 config ARM_ERRATA_720789
        bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
        depends on CPU_V7
@@ -2007,7 +2031,7 @@ config XIP_PHYS_ADDR
 
 config KEXEC
        bool "Kexec system call (EXPERIMENTAL)"
-       depends on (!SMP || HOTPLUG_CPU)
+       depends on (!SMP || PM_SLEEP_SMP)
        help
          kexec is a system call that implements the ability to shutdown your
          current kernel, and to start another kernel.  It is like a reboot