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Sun, 20 Jan 2019 09:40:00 -0800 From: Nava kishore Manne To: , , , , , , , , Subject: [PATCH v3 5/6] dt-bindings: nvmem: Add bindings for ZynqMP nvmem driver Date: Mon, 21 Jan 2019 23:08:34 +0530 Message-ID: <20190121173835.21173-6-nava.manne@xilinx.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20190121173835.21173-1-nava.manne@xilinx.com> References: <20190121173835.21173-1-nava.manne@xilinx.com> X-RCIS-Action: ALLOW X-TM-AS-Product-Ver: IMSS-7.1.0.1224-8.2.0.1013-23620.005 X-TM-AS-User-Approved-Sender: Yes;Yes X-EOPAttributedMessage: 0 X-MS-Office365-Filtering-HT: Tenant X-Forefront-Antispam-Report: CIP:149.199.60.100; IPV:NLI; CTRY:US; EFV:NLI; SFV:NSPM; SFS:(10009020)(136003)(39850400004)(396003)(346002)(376002)(2980300002)(189003)(199004)(11346002)(446003)(1076003)(426003)(106466001)(336012)(47776003)(36386004)(50226002)(6666004)(8936002)(63266004)(478600001)(126002)(476003)(9786002)(2616005)(486006)(356004)(36756003)(81166006)(8676002)(81156014)(50466002)(2201001)(107886003)(16586007)(110136005)(48376002)(186003)(106002)(316002)(305945005)(26005)(77096007)(4326008)(6346003)(76176011)(14444005)(7696005)(51416003)(39060400002)(2906002)(107986001)(5001870100001)(2101003); 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Ip=[149.199.60.100]; Helo=[xsj-pvapsmtpgw02] X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM5PR0201MB3510 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190120_094019_068167_A69968FB X-CRM114-Status: GOOD ( 10.27 ) 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: , Cc: Nava kishore Manne Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP Add documentation to describe Xilinx ZynqMP nvmem driver bindings. Signed-off-by: Nava kishore Manne Reviewed-by: Rob Herring --- Changes for v3: -Added nvmem node as child of FW. Since nvmem driver is a provider. .../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"; + + ... + }; +