[PATCH v5 1/2] dt-bindings: misc: Add DT bindings to xlnx_vcu driver

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Add Device Tree binding document for logicoreIP. This logicoreIP
provides the isolation between the processing system and
programmable logic. Also provides the clock related information.

Signed-off-by: Dhaval Shah <dshah@xxxxxxxxxx>
---
Chnages since v5:
 No Changes.
Chnages since v4:
 No Changes.
Chnages since v3:
 * Use "dt-bindings: misc: ..." for the subject.
Changes since v2:
 * Describe the h/w
 * compatible string is updated to make it more specific
   based on the logicoreIP version.
 * Removed that encoder and decoder child nodes and relatd properties as that
   will be a separate driver and dts nodes. other team is working on that.
 * Updated to use as a single driver.

 .../devicetree/bindings/misc/xlnx,vcu.txt          | 31 ++++++++++++++++++++++
 1 file changed, 31 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/misc/xlnx,vcu.txt

diff --git a/Documentation/devicetree/bindings/misc/xlnx,vcu.txt b/Documentation/devicetree/bindings/misc/xlnx,vcu.txt
new file mode 100644
index 0000000..6786d67
--- /dev/null
+++ b/Documentation/devicetree/bindings/misc/xlnx,vcu.txt
@@ -0,0 +1,31 @@
+LogicoreIP designed compatible with Xilinx ZYNQ family.
+-------------------------------------------------------
+
+General concept
+---------------
+
+LogicoreIP design to provide the isolation between processing system
+and programmable logic. Also provides the list of register set to configure
+the frequency.
+
+Required properties:
+- compatible: shall be one of:
+	"xlnx,vcu"
+	"xlnx,vcu-logicoreip-1.0"
+- reg, reg-names: There are two sets of registers need to provide.
+	1. vcu slcr
+	2. Logicore
+	reg-names should contain name for the each register sequence.
+- clocks: phandle for aclk and pll_ref clocksource
+- clock-names: The identification string, "aclk", is always required for
+   the axi clock. "pll_ref" is required for pll.
+Example:
+
+	xlnx_vcu: vcu@a0040000 {
+		compatible = "xlnx,vcu-logicoreip-1.0";
+		reg = <0x0 0xa0040000 0x0 0x1000>,
+			 <0x0 0xa0041000 0x0 0x1000>;
+		reg-names = "vcu_slcr", "logicore";
+		clocks = <&si570_1>, <&clkc 71>;
+		clock-names = "pll_ref", "aclk";
+	};
-- 
2.7.4

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