timer: Add MPC83xx timer driver

Add a timer driver for the MPC83xx architecture.

Signed-off-by: Mario Six <mario.six@gdsys.cc>

1 files changed, 21 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/timer/fsl,mpc83xx-timer.txt b/Documentation/devicetree/bindings/timer/fsl,mpc83xx-timer.txt
new file mode 100644
index 0000000000..608d24110b
--- /dev/null
+++ b/Documentation/devicetree/bindings/timer/fsl,mpc83xx-timer.txt
@@ -0,0 +1,21 @@
+MPC83xx timer devices
+
+MPC83xx SoCs offer a decrementer interrupt that can be used to implement delay
+functionality, and periodically triggered actions.
+
+Required properties:
+- compatible: must be "fsl,mpc83xx-timer"
+- clocks: must be a reference to the system's CSB (coherent system bus) clock,
+  provided by one of the "fsl,mpc83xx-clk" devices
+
+Example:
+
+socclocks: clocks {
+	compatible = "fsl,mpc832x-clk";
+	#clock-cells = <1>;
+};
+
+timer {
+	compatible = "fsl,mpc83xx-timer";
+	clocks = <&socclocks MPC83XX_CLK_CSB>;
+};