1 files changed, 89 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/serial/xlnx,opb-uartlite.yaml b/Documentation/devicetree/bindings/serial/xlnx,opb-uartlite.yaml
new file mode 100644
index 000000000..f7617b88c
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+++ b/Documentation/devicetree/bindings/serial/xlnx,opb-uartlite.yaml
@@ -0,0 +1,89 @@
+# SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/serial/xlnx,opb-uartlite.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Xilinx Axi Uartlite
+
+maintainers:
+  - Peter Korsgaard <jacmet@sunsite.dk>
+
+properties:
+  compatible:
+    contains:
+      enum:
+        - xlnx,xps-uartlite-1.00.a
+        - xlnx,opb-uartlite-1.00.b
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  port-number:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: Set Uart port number
+
+  clocks:
+    maxItems: 1
+
+  clock-names:
+    const: s_axi_aclk
+
+  current-speed:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description:
+      The fixed baud rate that the device was configured for.
+
+  xlnx,data-bits:
+    enum: [5, 6, 7, 8]
+    description:
+      The fixed number of data bits that the device was configured for.
+
+  xlnx,use-parity:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    enum: [0, 1]
+    description:
+      Whether parity checking was enabled when the device was configured.
+
+  xlnx,odd-parity:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    enum: [0, 1]
+    description:
+      Whether odd parity was configured.
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - current-speed
+  - xlnx,data-bits
+  - xlnx,use-parity
+
+allOf:
+  - $ref: /schemas/serial.yaml#
+  - if:
+      properties:
+        xlnx,use-parity:
+          contains:
+            const: 1
+    then:
+      required:
+        - xlnx,odd-parity
+
+unevaluatedProperties: false
+
+examples:
+  - |
+      serial@800c0000 {
+        compatible = "xlnx,xps-uartlite-1.00.a";
+        reg = <0x800c0000 0x10000>;
+        interrupts = <0x0 0x6e 0x1>;
+        port-number = <0>;
+        current-speed = <115200>;
+        xlnx,data-bits = <8>;
+        xlnx,use-parity = <0>;
+      };
+...