1. 30 3月, 2015 28 次提交
  2. 13 3月, 2015 7 次提交
  3. 11 3月, 2015 4 次提交
  4. 08 3月, 2015 1 次提交
    • S
      irqchip: vf610-mscm-ir: Add support for Vybrid MSCM interrupt router · 0494e11a
      Stefan Agner 提交于
      This adds support for Vybrid's interrupt router. On VF6xx models,
      almost all peripherals can be used by either of the two CPU's,
      the Cortex-A5 or the Cortex-M4. The interrupt router routes the
      peripheral interrupts to the configured CPU.
      
      This IRQ chip driver configures the interrupt router to route
      the requested interrupt to the CPU the kernel is running on.
      The driver makes use of the irqdomain hierarchy support. The
      parent is given by the device tree. This should be one of the
      two possible parents either ARM GIC or the ARM NVIC interrupt
      controller. The latter is currently not yet supported.
      
      Note that there is no resource control mechnism implemented to
      avoid concurrent access of the same peripheral. The user needs
      to make sure to use device trees which assign the peripherals
      orthogonally. However, this driver warns the user in case the
      interrupt is already configured for the other CPU. This provides
      a poor man's resource controller.
      Acked-by: NMarc Zyngier <marc.zyngier@arm.com>
      Signed-off-by: NStefan Agner <stefan@agner.ch>
      Link: https://lkml.kernel.org/r/1425249689-32354-2-git-send-email-stefan@agner.chSigned-off-by: NJason Cooper <jason@lakedaemon.net>
      0494e11a