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author | 2015-07-07 12:35:33 +0100 | |
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committer | 2015-07-07 12:35:33 +0100 | |
commit | 06be5eefe1192eb8ce8d07497f67595b6bfe9741 (patch) | |
tree | 80f1987d4970f8079681f8be0c135cafc8d6329a /Documentation/devicetree/bindings/mailbox | |
parent | ARM: fix lockdep unannotated irqs-off warning (diff) | |
parent | ARM: avoid unwanted GCC memset()/memcpy() optimisations for IO variants (diff) | |
download | linux-dev-06be5eefe1192eb8ce8d07497f67595b6bfe9741.tar.xz linux-dev-06be5eefe1192eb8ce8d07497f67595b6bfe9741.zip |
Merge branches 'fixes' and 'ioremap' into for-linus
Diffstat (limited to 'Documentation/devicetree/bindings/mailbox')
-rw-r--r-- | Documentation/devicetree/bindings/mailbox/brcm,bcm2835-mbox.txt | 26 | ||||
-rw-r--r-- | Documentation/devicetree/bindings/mailbox/mailbox.txt | 10 |
2 files changed, 28 insertions, 8 deletions
diff --git a/Documentation/devicetree/bindings/mailbox/brcm,bcm2835-mbox.txt b/Documentation/devicetree/bindings/mailbox/brcm,bcm2835-mbox.txt new file mode 100644 index 000000000000..e893615ef635 --- /dev/null +++ b/Documentation/devicetree/bindings/mailbox/brcm,bcm2835-mbox.txt @@ -0,0 +1,26 @@ +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>; +}; diff --git a/Documentation/devicetree/bindings/mailbox/mailbox.txt b/Documentation/devicetree/bindings/mailbox/mailbox.txt index 1a2cd3d266db..be05b9746c69 100644 --- a/Documentation/devicetree/bindings/mailbox/mailbox.txt +++ b/Documentation/devicetree/bindings/mailbox/mailbox.txt @@ -22,17 +22,11 @@ Required property: - mboxes: List of phandle and mailbox channel specifiers. Optional property: -- mbox-names: List of identifier strings for each mailbox channel - required by the client. The use of this property - is discouraged in favor of using index in list of - 'mboxes' while requesting a mailbox. Instead the - platforms may define channel indices, in DT headers, - to something legible. +- mbox-names: List of identifier strings for each mailbox channel. Example: pwr_cntrl: power { ... mbox-names = "pwr-ctrl", "rpc"; - mboxes = <&mailbox 0 - &mailbox 1>; + mboxes = <&mailbox 0 &mailbox 1>; }; |