From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jolly Shah Subject: [PATCH v9 01/10] dt-bindings: firmware: Add bindings for ZynqMP firmware Date: Wed, 20 Jun 2018 10:40:26 -0700 Message-ID: <1529516435-7315-2-git-send-email-jollys@xilinx.com> References: <1529516435-7315-1-git-send-email-jollys@xilinx.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: In-Reply-To: <1529516435-7315-1-git-send-email-jollys@xilinx.com> Sender: linux-kernel-owner@vger.kernel.org To: ard.biesheuvel@linaro.org, mingo@kernel.org, gregkh@linuxfoundation.org, matt@codeblueprint.co.uk, sudeep.holla@arm.com, hkallweit1@gmail.com, keescook@chromium.org, dmitry.torokhov@gmail.com, mturquette@baylibre.com, sboyd@codeaurora.org, michal.simek@xilinx.com, robh+dt@kernel.org, mark.rutland@arm.com, linux-clk@vger.kernel.org Cc: rajanv@xilinx.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, Jolly Shah List-Id: devicetree@vger.kernel.org From: Rajan Vaja 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 --- .../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 0000000..1b431d9 --- /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"; + }; +}; -- 2.7.4