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61 lines
1.8 KiB
61 lines
1.8 KiB
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Device Tree Bindings for the Xilinx Zynq MPSoC Power Management |
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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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Required properties: |
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- compatible: Must contain: "xlnx,zynqmp-power" |
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- interrupts: Interrupt specifier |
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Optional properties: |
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- mbox-names : Name given to channels seen in the 'mboxes' property. |
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"tx" - Mailbox corresponding to transmit path |
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"rx" - Mailbox corresponding to receive path |
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- mboxes : 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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-------- |
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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: zynqmp-firmware { |
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compatible = "xlnx,zynqmp-firmware"; |
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method = "smc"; |
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zynqmp_power: 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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Example with IPI mailbox method: |
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firmware { |
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zynqmp_firmware: zynqmp-firmware { |
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compatible = "xlnx,zynqmp-firmware"; |
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method = "smc"; |
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zynqmp_power: 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_pmu0 0>, |
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<&ipi_mailbox_pmu0 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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