CONFIG_ARM_ARCH_TIMER_ERRATUM_740657

ARM architected timer is affected by ARM erratum 740657

Type: bool

Help

This option indicates that the ARM architected timer as implemented
in the target hardware is affected by the ARM erratum 740657 (comp.
ARM Cortex-A9 processors Software Developers Errata Notice, ARM
document ID032315) which leads to an additional, spurious interrupt
indication upon every actual timer interrupt. This option activates
the workaround for the erratum within the timer driver.

Direct dependencies

ARM_ARCH_TIMER

(Includes any dependencies from ifs and menus.)

Defaults

No defaults. Implicitly defaults to n.

Symbols that select this symbol

Kconfig definition

At <Zephyr>/drivers/timer/Kconfig.arm_arch:17

Included via <Zephyr>/Kconfig:8 → <Zephyr>/Kconfig.zephyr:42 → <Zephyr>/drivers/Kconfig:30 → <Zephyr>/drivers/timer/Kconfig:60

Menu path: (Top) → Device Drivers → Timer Drivers → ARM architected timer

config ARM_ARCH_TIMER_ERRATUM_740657
    bool "ARM architected timer is affected by ARM erratum 740657"
    depends on ARM_ARCH_TIMER
    help
      This option indicates that the ARM architected timer as implemented
      in the target hardware is affected by the ARM erratum 740657 (comp.
      ARM Cortex-A9 processors Software Developers Errata Notice, ARM
      document ID032315) which leads to an additional, spurious interrupt
      indication upon every actual timer interrupt. This option activates
      the workaround for the erratum within the timer driver.

(The ‘depends on’ condition includes propagated dependencies from ifs and menus.)