From mboxrd@z Thu Jan 1 00:00:00 1970 From: Nava kishore Manne Subject: [PATCH 2/3] dt-bindings: nvmem: Add bindings for ZynqMP nvmem driver Date: Fri, 19 Oct 2018 08:35:48 +0000 (UTC) Message-ID: <20181020083603.27602-3-nava.manne@xilinx.com> References: <20181020083603.27602-1-nava.manne@xilinx.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: Date: Sat, 20 Oct 2018 14:06:02 +0530 In-Reply-To: <20181020083603.27602-1-nava.manne@xilinx.com> Sender: linux-kernel-owner@vger.kernel.org To: srinivas.kandagatla@linaro.org, robh+dt@kernel.org, mark.rutland@arm.com, michal.simek@xilinx.com, jollys@xilinx.com, rajanv@xilinx.com, nava.manne@xilinx.com, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org List-Id: devicetree@vger.kernel.org Add documentation to describe Xilinx ZynqMP nvmem driver bindings. Signed-off-by: Nava kishore Manne --- Changes for v1: Created a Seperate(New) DT binding file as suggested by Rob. Changes for RFC-V3: -None. Changes for RFC-V2: -Moved nvmem_firmware node as a child to firwmare node. .../bindings/nvmem/xlnx,zynqmp-nvmem.txt | 37 ++++++++++++++++++++++ 1 file changed, 37 insertions(+) create mode 100644 Documentation/devicetree/bindings/nvmem/xlnx,zynqmp-nvmem.txt diff --git a/Documentation/devicetree/bindings/nvmem/xlnx,zynqmp-nvmem.txt b/Documentation/devicetree/bindings/nvmem/xlnx,zynqmp-nvmem.txt new file mode 100644 index 0000000..0bafb9f --- /dev/null +++ b/Documentation/devicetree/bindings/nvmem/xlnx,zynqmp-nvmem.txt @@ -0,0 +1,37 @@ +-------------------------------------------------------------------------- += Zynq UltraScale+ MPSoC nvmem firmware driver binding = +-------------------------------------------------------------------------- +The nvmem_firmware node provides access to the hardware related data +like soc revision, IDCODE... etc, By using the firmware interface. + +Required properties: +- compatible: should be "xlnx,zynqmp-nvmem-fw" + += Data cells = +Are child nodes of silicon id, bindings of which as described in +bindings/nvmem/nvmem.txt + +------- + Example +------- + nvmem_firmware { + compatible = "xlnx,zynqmp-nvmem-fw"; + #address-cells = <1>; + #size-cells = <1>; + + /* Data cells */ + soc_revision: soc_revision { + reg = <0x0 0x4>; + }; + }; + += Data consumers = +Are device nodes which consume nvmem data cells. + +For example: + pcap { + ... + nvmem-cells = <&soc_revision>; + nvmem-cell-names = "soc_revision"; + }; + -- 2.7.4