84 lines
2.0 KiB
YAML
84 lines
2.0 KiB
YAML
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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/power/reset/xlnx,zynqmp-power.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Xilinx Zynq MPSoC Power Management Device Tree Bindings
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maintainers:
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- Michal Simek <michal.simek@xilinx.com>
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description: |
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The zynqmp-power node describes the power management configurations.
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It will control remote suspend/shutdown interfaces.
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properties:
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compatible:
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const: xlnx,zynqmp-power
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interrupts:
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maxItems: 1
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mboxes:
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description: |
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Standard property to specify a Mailbox. Each value of
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the mboxes property should contain a phandle to the
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mailbox controller device node and an args specifier
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that will be the phandle to the intended sub-mailbox
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child node to be used for communication. See
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Documentation/devicetree/bindings/mailbox/mailbox.txt
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for more details about the generic mailbox controller
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and client driver bindings. Also see
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Documentation/devicetree/bindings/mailbox/ \
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xlnx,zynqmp-ipi-mailbox.txt for typical controller that
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is used to communicate with this System controllers.
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items:
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- description: tx channel
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- description: rx channel
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mbox-names:
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description:
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Name given to channels seen in the 'mboxes' property.
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items:
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- const: tx
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- const: rx
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required:
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- compatible
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- interrupts
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additionalProperties: false
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examples:
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- |+
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// Example with interrupt method:
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firmware {
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zynqmp-firmware {
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zynqmp-power {
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compatible = "xlnx,zynqmp-power";
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interrupts = <0 35 4>;
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};
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};
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};
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- |+
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// Example with IPI mailbox method:
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firmware {
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zynqmp-firmware {
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zynqmp-power {
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compatible = "xlnx,zynqmp-power";
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interrupt-parent = <&gic>;
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interrupts = <0 35 4>;
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mboxes = <&ipi_mailbox_pmu1 0>,
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<&ipi_mailbox_pmu1 1>;
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mbox-names = "tx", "rx";
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};
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};
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};
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...
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