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-rw-r--r--doc/device-tree-bindings/serial/ns16550.txt10
-rw-r--r--doc/device-tree-bindings/serial/sandbox-serial.txt13
2 files changed, 23 insertions, 0 deletions
diff --git a/doc/device-tree-bindings/serial/ns16550.txt b/doc/device-tree-bindings/serial/ns16550.txt
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+NS16550 UART
+
+This UART driver supports many chip variants and is used in mamy SoCs.
+
+Required properties:
+- compatible: "ns16550" or "nvidia,tegra20-uart"
+- reg: start address and size of registers
+- reg-shift: shift value indicating register size: 0=byte, 1=16bit,2=32bit etc.
+- clock-frequency: input clock frequency for the UART (used to calculate the
+ baud rate divisor)
diff --git a/doc/device-tree-bindings/serial/sandbox-serial.txt b/doc/device-tree-bindings/serial/sandbox-serial.txt
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+Sandbox serial
+
+The sandbox serial device is an emulated device which displays its output
+on the host machine's console, and accepts input from its keyboard.
+
+Required properties:
+ compatible: "sandbox,serial"
+
+Optional properties:
+ sandbox,text-colour: If present, this is the colour of the console text.
+ Supported values are:
+ "black", "red", "green", "yellow", "blue", "megenta", "cyan",
+ "white"