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1Rockchip mailbox2 3The Rockchip mailbox is used by the Rockchip CPU cores to communicate4requests to MCU processor.5 6Refer to ./mailbox.txt for generic information about mailbox device-tree7bindings.8 9Required properties:10 11 - compatible: should be one of the following.12 - "rockchip,rk3368-mbox" for rk336813 - reg: physical base address of the controller and length of memory mapped14 region.15 - interrupts: The interrupt number to the cpu. The interrupt specifier format16 depends on the interrupt controller.17 - #mbox-cells: Common mailbox binding property to identify the number18 of cells required for the mailbox specifier. Should be 119 20Example:21--------22 23/* RK3368 */24mbox: 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};33