clocksource: dw_apb_timer: Add common DTS glue for dw_apb_timer

[firefly-linux-kernel-4.4.55.git] / Documentation / devicetree / bindings / rtc / dw-apb.txt

diff --git a/Documentation/devicetree/bindings/rtc/dw-apb.txt b/Documentation/devicetree/bindings/rtc/dw-apb.txt
new file mode 100644 (file)
index 0000000..93e2b0f
--- /dev/null
+++ b/Documentation/devicetree/bindings/rtc/dw-apb.txt
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+* Designware APB timer
+
+Required properties:
+- compatible: "snps,dw-apb-timer-sp" or "snps,dw-apb-timer-osc"
+- reg: physical base address of the controller and length of memory mapped
+  region.
+- interrupts: IRQ line for the timer.
+- clock-frequency: The frequency in HZ of the timer.
+- clock-freq: For backwards compatibility with picoxcell
+
+Example:
+
+               timer1: timer@ffc09000 {
+                               compatible = "snps,dw-apb-timer-sp";
+                               interrupts = <0 168 4>;
+                               clock-frequency = <200000000>;
+                               reg = <0xffc09000 0x1000>;
+                       };
+
+               timer2: timer@ffd00000 {
+                               compatible = "snps,dw-apb-timer-osc";
+                               interrupts = <0 169 4>;
+                               clock-frequency = <200000000>;
+                               reg = <0xffd00000 0x1000>;
+                       };