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| -rw-r--r-- | Documentation/devicetree/bindings/firmware/xilinx/xlnx,zynqmp-firmware.txt | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/firmware/xilinx/xlnx,zynqmp-firmware.txt b/Documentation/devicetree/bindings/firmware/xilinx/xlnx,zynqmp-firmware.txt new file mode 100644 index 000000000..18c3aea90 --- /dev/null +++ b/Documentation/devicetree/bindings/firmware/xilinx/xlnx,zynqmp-firmware.txt @@ -0,0 +1,44 @@ +----------------------------------------------------------------- +Device Tree Bindings for the Xilinx Zynq MPSoC Firmware Interface +----------------------------------------------------------------- + +The zynqmp-firmware node describes the interface to platform firmware. +ZynqMP has an interface to communicate with secure firmware. Firmware +driver provides an interface to firmware APIs. Interface APIs can be +used by any driver to communicate to PMUFW(Platform Management Unit). +These requests include clock management, pin control, device control, +power management service, FPGA service and other platform management +services. + +Required properties: + - compatible: Must contain any of below: + "xlnx,zynqmp-firmware" for Zynq Ultrascale+ MPSoC + "xlnx,versal-firmware" for Versal + - method: The method of calling the PM-API firmware layer. + Permitted values are: + - "smc" : SMC #0, following the SMCCC + - "hvc" : HVC #0, following the SMCCC + +------- +Example +------- + +Zynq Ultrascale+ MPSoC +---------------------- +firmware { + zynqmp_firmware: zynqmp-firmware { + compatible = "xlnx,zynqmp-firmware"; + method = "smc"; + ... + }; +}; + +Versal +------ +firmware { + versal_firmware: versal-firmware { + compatible = "xlnx,versal-firmware"; + method = "smc"; + ... + }; +}; |