nios2: convert altera timer to driver model

Convert altera timer to driver model.

Signed-off-by: Thomas Chou <thomas@wytron.com.tw>
Acked-by: Chin Liang See <clsee@altera.com>

1 files changed, 19 insertions, 0 deletions

diff --git a/doc/device-tree-bindings/timer/altera_timer.txt b/doc/device-tree-bindings/timer/altera_timer.txt
new file mode 100644
index 0000000..904a584
--- /dev/null
+++ b/doc/device-tree-bindings/timer/altera_timer.txt
@@ -0,0 +1,19 @@
+Altera Timer
+
+Required properties:
+
+- compatible : should be "altr,timer-1.0"
+- reg : Specifies base physical address and size of the registers.
+- interrupt-parent: phandle of the interrupt controller
+- interrupts : Should contain the timer interrupt number
+- clock-frequency : The frequency of the clock that drives the counter, in Hz.
+
+Example:
+
+timer {
+	compatible = "altr,timer-1.0";
+	reg = <0x00400000 0x00000020>;
+	interrupt-parent = <&cpu>;
+	interrupts = <11>;
+	clock-frequency = <125000000>;
+};