Documentation/devicetree/bindings/mailbox/rockchip-mailbox.txt

   1 Rockchip mailbox
   2
   3 The Rockchip mailbox is used by the Rockchip CPU cores to communicate
   4 requests to MCU processor.
   5
   6 Refer to ./mailbox.txt for generic information about mailbox device-tree
   7 bindings.
   8
   9 Required properties:
  10
  11  - compatible: should be one of the following.
  12    - "rockchip,rk3368-mbox" for rk3368
  13  - reg: physical base address of the controller and length of memory mapped
  14         region.
  15  - interrupts: The interrupt number to the cpu. The interrupt specifier format
  16         depends on the interrupt controller.
  17  - #mbox-cells: Common mailbox binding property to identify the number
  18         of cells required for the mailbox specifier. Should be 1
  19
  20 Example:
  21 --------
  22
  23 /* RK3368 */
  24 mbox: mbox@ff6b0000 {
  25         compatible = "rockchip,rk3368-mailbox";
  26         reg = <0x0 0xff6b0000 0x0 0x1000>,
  27         interrupts = <GIC_SPI 146 IRQ_TYPE_LEVEL_HIGH>,
  28                      <GIC_SPI 147 IRQ_TYPE_LEVEL_HIGH>,
  29                      <GIC_SPI 148 IRQ_TYPE_LEVEL_HIGH>,
  30                      <GIC_SPI 149 IRQ_TYPE_LEVEL_HIGH>;
  31         #mbox-cells = <1>;
  32 };