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--------------------------------------------------------------------
Device Tree Bindings for the Xilinx Zynq MPSoC Power Management
--------------------------------------------------------------------
The zynqmp-power node describes the power management configurations.
It will control remote suspend/shutdown interfaces.
Required properties:
- compatible: Must contain: "xlnx,zynqmp-power"
- interrupts: Interrupt specifier
Optional properties:
- mbox-names : Name given to channels seen in the 'mboxes' property.
"tx" - Mailbox corresponding to transmit path
"rx" - Mailbox corresponding to receive path
- mboxes : Standard property to specify a Mailbox. Each value of
the mboxes property should contain a phandle to the
mailbox controller device node and an args specifier
that will be the phandle to the intended sub-mailbox
child node to be used for communication. See
Documentation/devicetree/bindings/mailbox/mailbox.txt
for more details about the generic mailbox controller
and client driver bindings. Also see
Documentation/devicetree/bindings/mailbox/ \
xlnx,zynqmp-ipi-mailbox.txt for typical controller that
is used to communicate with this System controllers.
--------
Examples
--------
Example with interrupt method:
firmware {
zynqmp_firmware: zynqmp-firmware {
compatible = "xlnx,zynqmp-firmware";
method = "smc";
zynqmp_power: zynqmp-power {
compatible = "xlnx,zynqmp-power";
interrupts = <0 35 4>;
};
};
};
Example with IPI mailbox method:
firmware {
zynqmp_firmware: zynqmp-firmware {
compatible = "xlnx,zynqmp-firmware";
method = "smc";
zynqmp_power: zynqmp-power {
compatible = "xlnx,zynqmp-power";
interrupt-parent = <&gic>;
interrupts = <0 35 4>;
mboxes = <&ipi_mailbox_pmu0 0>,
<&ipi_mailbox_pmu0 1>;
mbox-names = "tx", "rx";
};
};
};
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