mirror of https://github.com/F-Stack/f-stack.git
45 lines
1.2 KiB
Plaintext
45 lines
1.2 KiB
Plaintext
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Device Tree Bindings for the Xilinx Zynq MPSoC Firmware Interface
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The zynqmp-firmware node describes the interface to platform firmware.
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ZynqMP has an interface to communicate with secure firmware. Firmware
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driver provides an interface to firmware APIs. Interface APIs can be
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used by any driver to communicate to PMUFW(Platform Management Unit).
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These requests include clock management, pin control, device control,
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power management service, FPGA service and other platform management
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services.
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Required properties:
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- compatible: Must contain any of below:
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"xlnx,zynqmp-firmware" for Zynq Ultrascale+ MPSoC
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"xlnx,versal-firmware" for Versal
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- method: The method of calling the PM-API firmware layer.
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Permitted values are:
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- "smc" : SMC #0, following the SMCCC
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- "hvc" : HVC #0, following the SMCCC
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-------
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Example
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-------
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Zynq Ultrascale+ MPSoC
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----------------------
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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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...
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};
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};
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Versal
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------
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firmware {
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versal_firmware: versal-firmware {
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compatible = "xlnx,versal-firmware";
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method = "smc";
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...
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};
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};
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