Add binding documentation for the UARTs found in Ingenic SoCs.
Signed-off-by: Paul Burton <paul.burton@xxxxxxxxxx>
Cc: Lars-Peter Clausen <lars@xxxxxxxxxx>
Cc: devicetree@xxxxxxxxxxxxxxx
---
Changes in v3:
- Merge binding documentation for Ingenic SoCs whose bindings differ
only by their compatible strings.
Changes in v2:
- None.
---
.../devicetree/bindings/serial/ingenic,uart.txt | 22 ++++++++++++++++++++++
1 file changed, 22 insertions(+)
create mode 100644 Documentation/devicetree/bindings/serial/ingenic,uart.txt
diff --git a/Documentation/devicetree/bindings/serial/ingenic,uart.txt b/Documentation/devicetree/bindings/serial/ingenic,uart.txt
new file mode 100644
index 0000000..c2d3b3a
--- /dev/null
+++ b/Documentation/devicetree/bindings/serial/ingenic,uart.txt
@@ -0,0 +1,22 @@
+* Ingenic SoC UART
+
+Required properties:
+- compatible : "ingenic,jz4740-uart" or "ingenic,jz4780-uart"
+- reg : offset and length of the register set for the device.
+- interrupts : should contain uart interrupt.
+- clocks : phandles to the module & baud clocks.
+- clock-names: tuple listing input clock names.
+ Required elements: "baud", "module"
+
+Example:
+
+uart0: serial@10030000 {
+ compatible = "ingenic,jz4740-uart";
+ reg = <0x10030000 0x100>;
+
+ interrupt-parent = <&intc>;
+ interrupts = <9>;
+
+ clocks = <&ext>, <&cgu JZ4740_CLK_UART0>;
+ clock-names = "baud", "module";
+};
--
2.3.5
