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-rw-r--r--Documentation/devicetree/bindings/mailbox/brcm,bcm2835-mbox.txt26
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+Broadcom BCM2835 VideoCore mailbox IPC
+
+Required properties:
+
+- compatible: Should be "brcm,bcm2835-mbox"
+- reg: Specifies base physical address and size of the registers
+- interrupts: The interrupt number
+ See bindings/interrupt-controller/brcm,bcm2835-armctrl-ic.txt
+- #mbox-cells: Specifies the number of cells needed to encode a mailbox
+ channel. The value shall be 0, since there is only one
+ mailbox channel implemented by the device.
+
+Example:
+
+mailbox: mailbox@7e00b800 {
+ compatible = "brcm,bcm2835-mbox";
+ reg = <0x7e00b880 0x40>;
+ interrupts = <0 1>;
+ #mbox-cells = <0>;
+};
+
+firmware: firmware {
+ compatible = "raspberrypi,firmware";
+ mboxes = <&mailbox>;
+ #power-domain-cells = <1>;
+};