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Ip=[149.199.60.100]; Helo=[xsj-pvapsmtpgw02] X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: BL2PR02MB2145 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190202_230941_430633_BA6F9E10 X-CRM114-Status: GOOD ( 10.42 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org Add documentation to describe Xilinx ZynqMP nvmem driver bindings. Signed-off-by: Nava kishore Manne Reviewed-by: Rob Herring --- .../bindings/nvmem/xlnx,zynqmp-nvmem.txt | 47 +++++++++++++++++++ 1 file changed, 47 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 000000000000..2043c8284f8c --- /dev/null +++ b/Documentation/devicetree/bindings/nvmem/xlnx,zynqmp-nvmem.txt @@ -0,0 +1,47 @@ +-------------------------------------------------------------------------- += 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 +------- +firmware { + zynqmp_firmware: zynqmp-firmware { + compatible = "xlnx,zynqmp-firmware"; + method = "smc"; + + 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"; + + ... + }; + -- 2.18.0 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel