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 };
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