From 95bf69a22d97d6dc1802feef164b34d57280a77d Mon Sep 17 00:00:00 2001 From: Rajan Vaja Date: Wed, 12 Sep 2018 12:38:35 -0700 Subject: [PATCH] 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: Rajan Vaja Signed-off-by: Jolly Shah Reviewed-by: Rob Herring Signed-off-by: Michal Simek --- .../firmware/xilinx/xlnx,zynqmp-firmware.txt | 29 +++++++++++++++++++ 1 file changed, 29 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 000000000000..1b431d9bbe44 --- /dev/null +++ b/Documentation/devicetree/bindings/firmware/xilinx/xlnx,zynqmp-firmware.txt @@ -0,0 +1,29 @@ +----------------------------------------------------------------- +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: "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"; + }; +}; -- 2.30.2