brcm,bcm2835-mbox.txt 708 B

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  1. Broadcom BCM2835 VideoCore mailbox IPC
  2. Required properties:
  3. - compatible: Should be "brcm,bcm2835-mbox"
  4. - reg: Specifies base physical address and size of the registers
  5. - interrupts: The interrupt number
  6. See bindings/interrupt-controller/brcm,bcm2835-armctrl-ic.txt
  7. - #mbox-cells: Specifies the number of cells needed to encode a mailbox
  8. channel. The value shall be 0, since there is only one
  9. mailbox channel implemented by the device.
  10. Example:
  11. mailbox: mailbox@7e00b800 {
  12. compatible = "brcm,bcm2835-mbox";
  13. reg = <0x7e00b880 0x40>;
  14. interrupts = <0 1>;
  15. #mbox-cells = <0>;
  16. };
  17. firmware: firmware {
  18. compatible = "raspberrypi,firmware";
  19. mboxes = <&mailbox>;
  20. #power-domain-cells = <1>;
  21. };