dt-bindings: soc: xilinx: Add DT bindings to xlnx_vcu driver

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@xilinx.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>

1 files changed, 31 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/soc/xilinx/xlnx,vcu.txt b/Documentation/devicetree/bindings/soc/xilinx/xlnx,vcu.txt
new file mode 100644
index 000000000000..6786d6715df0
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+++ b/Documentation/devicetree/bindings/soc/xilinx/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";
+        };