mirror of
https://github.com/edk2-porting/linux-next.git
synced 2025-01-03 19:24:02 +08:00
4c9847b737
Improve the binding example by removing all the leading 0x to fix the
following dtc warnings:
Warning (unit_address_format): Node /XXX unit name should not have leading "0x"
Converted using the following command:
find Documentation/devicetree/bindings -name "*.txt" -exec sed -i -e 's/([^ ])\@0x([0-9a-f])/$1\@$2/g' {} +
This is a follow up to commit 48c926cd34
Signed-off-by: Mathieu Malaterre <malat@debian.org>
Signed-off-by: Rob Herring <robh@kernel.org>
50 lines
1.4 KiB
Plaintext
50 lines
1.4 KiB
Plaintext
Altera Mailbox Driver
|
|
=====================
|
|
|
|
Required properties:
|
|
- compatible : "altr,mailbox-1.0".
|
|
- reg : physical base address of the mailbox and length of
|
|
memory mapped region.
|
|
- #mbox-cells: Common mailbox binding property to identify the number
|
|
of cells required for the mailbox specifier. Should be 1.
|
|
|
|
Optional properties:
|
|
- interrupt-parent : interrupt source phandle.
|
|
- interrupts : interrupt number. The interrupt specifier format
|
|
depends on the interrupt controller parent.
|
|
|
|
Example:
|
|
mbox_tx: mailbox@100 {
|
|
compatible = "altr,mailbox-1.0";
|
|
reg = <0x100 0x8>;
|
|
interrupt-parent = < &gic_0 >;
|
|
interrupts = <5>;
|
|
#mbox-cells = <1>;
|
|
};
|
|
|
|
mbox_rx: mailbox@200 {
|
|
compatible = "altr,mailbox-1.0";
|
|
reg = <0x200 0x8>;
|
|
interrupt-parent = < &gic_0 >;
|
|
interrupts = <6>;
|
|
#mbox-cells = <1>;
|
|
};
|
|
|
|
Mailbox client
|
|
===============
|
|
"mboxes" and the optional "mbox-names" (please see
|
|
Documentation/devicetree/bindings/mailbox/mailbox.txt for details). Each value
|
|
of the mboxes property should contain a phandle to the mailbox controller
|
|
device node and second argument is the channel index. It must be 0 (hardware
|
|
support only one channel).The equivalent "mbox-names" property value can be
|
|
used to give a name to the communication channel to be used by the client user.
|
|
|
|
Example:
|
|
mclient0: mclient0@400 {
|
|
compatible = "client-1.0";
|
|
reg = <0x400 0x10>;
|
|
mbox-names = "mbox-tx", "mbox-rx";
|
|
mboxes = <&mbox_tx 0>,
|
|
<&mbox_rx 0>;
|
|
};
|