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Firmware driver provides an interface to firmware APIs. Interface APIs can be used by any driver to communicate to PMUFW (Platform Management Unit). Signed-off-by: Jolly Shah Signed-off-by: Rajan Vaja --- .../firmware/xilinx/xlnx,zynqmp-firmware.txt | 24 ++++++++++++++++++++++ 1 file changed, 24 insertions(+) create mode 100644 Documentation/devicetree/bindings/firmware/xilinx/xlnx,zynqmp-firmware.txt 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 0000000..99434ba --- /dev/null +++ b/Documentation/devicetree/bindings/firmware/xilinx/xlnx,zynqmp-firmware.txt @@ -0,0 +1,24 @@ +Xilinx Zynq MPSoC Firmware Device Tree Bindings + +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: "xlnx,zynqmp-firmware" + - 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 + +Examples: + firmware { + zynqmp_firmware: zynqmp-firmware { + compatible = "xlnx,zynqmp-firmware"; + method = "smc"; + }; + }; -- 2.7.4