1Rockchip mailbox
 2
 3The Rockchip mailbox is used by the Rockchip CPU cores to communicate
 4requests to MCU processor.
 5
 6Refer to ./mailbox.txt for generic information about mailbox device-tree
 7bindings.
 8
 9Required 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
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};