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Commit 95bf69a2 authored by Rajan Vaja's avatar Rajan Vaja Committed by Michal Simek
Browse files

dt-bindings: firmware: Add bindings for ZynqMP firmware 



Add documentation to describe Xilinx ZynqMP firmware driver
bindings. 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: default avatarRajan Vaja <rajanv@xilinx.com>
Signed-off-by: default avatarJolly Shah <jollys@xilinx.com>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarMichal Simek <michal.simek@xilinx.com>
parent 5b394b2d

Documentation/devicetree/bindings/firmware/xilinx/xlnx,zynqmp-firmware.txt

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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.

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



-------

Example

-------



firmware {

	zynqmp_firmware: zynqmp-firmware {

		compatible = "xlnx,zynqmp-firmware";

		method = "smc";

	};

};