1Broadcom BCM2835 VideoCore mailbox IPC 2 3Required properties: 4 5- compatible: Should be "brcm,bcm2835-mbox" 6- reg: Specifies base physical address and size of the registers 7- interrupts: The interrupt number 8 See bindings/interrupt-controller/brcm,bcm2835-armctrl-ic.txt 9- #mbox-cells: Specifies the number of cells needed to encode a mailbox 10 channel. The value shall be 0, since there is only one 11 mailbox channel implemented by the device. 12 13Example: 14 15mailbox: mailbox@7e00b880 { 16 compatible = "brcm,bcm2835-mbox"; 17 reg = <0x7e00b880 0x40>; 18 interrupts = <0 1>; 19 #mbox-cells = <0>; 20}; 21 22firmware: firmware { 23 compatible = "raspberrypi,firmware"; 24 mboxes = <&mailbox>; 25 #power-domain-cells = <1>; 26}; 27