Help¶

This option indicates that the ARM CPU is connected to a custom (i.e. non-GIC) interrupt controller.

A number of Cortex-A and Cortex-R cores (Cortex-A5, Cortex-R4/5, …) allow interfacing to a custom external interrupt controller and this option must be selected when such cores are connected to an interrupt controller that is not the ARM Generic Interrupt Controller (GIC).

When this option is selected, the architecture interrupt control functions are mapped to the SoC interrupt control interface, which is implemented at the SoC level.

N.B. This option is only applicable to the Cortex-A and Cortex-R: family cores. The Cortex-M family cores are always equipped with the ARM Nested Vectored Interrupt Controller (NVIC).

Direct dependencies¶

!CPU_CORTEX_M && ARM

(Includes any dependencies from ifs and menus.)

Defaults¶

No defaults. Implicitly defaults to n.

Kconfig definition¶

At <Zephyr>/arch/arm/Kconfig:21

Included via <Zephyr>/Kconfig:8 → <Zephyr>/Kconfig.zephyr:29 → <Zephyr>/arch/Kconfig:12

Menu path: (Top) → ARM Options

config ARM_CUSTOM_INTERRUPT_CONTROLLER
    bool
    depends on !CPU_CORTEX_M && ARM
    help
      This option indicates that the ARM CPU is connected to a custom (i.e.
      non-GIC) interrupt controller.

      A number of Cortex-A and Cortex-R cores (Cortex-A5, Cortex-R4/5, ...)
      allow interfacing to a custom external interrupt controller and this
      option must be selected when such cores are connected to an interrupt
      controller that is not the ARM Generic Interrupt Controller (GIC).

      When this option is selected, the architecture interrupt control
      functions are mapped to the SoC interrupt control interface, which is
      implemented at the SoC level.

      N.B. This option is only applicable to the Cortex-A and Cortex-R
           family cores. The Cortex-M family cores are always equipped with
           the ARM Nested Vectored Interrupt Controller (NVIC).

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