tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
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linux
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@7e00b800 {
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};