These changes are the raw update to linux-4.4.6-rt14. Kernel sources

[kvmfornfv.git] / kernel / Documentation / devicetree / bindings / timer / img,pistachio-gptimer.txt

diff --git a/kernel/Documentation/devicetree/bindings/timer/img,pistachio-gptimer.txt b/kernel/Documentation/devicetree/bindings/timer/img,pistachio-gptimer.txt
new file mode 100644 (file)
index 0000000..7afce80
--- /dev/null
+++ b/kernel/Documentation/devicetree/bindings/timer/img,pistachio-gptimer.txt
@@ -0,0 +1,28 @@
+* Pistachio general-purpose timer based clocksource
+
+Required properties:
+ - compatible: "img,pistachio-gptimer".
+ - reg: Address range of the timer registers.
+ - interrupts: An interrupt for each of the four timers
+ - clocks: Should contain a clock specifier for each entry in clock-names
+ - clock-names: Should contain the following entries:
+                "sys", interface clock
+                "slow", slow counter clock
+                "fast", fast counter clock
+ - img,cr-periph: Must contain a phandle to the peripheral control
+                 syscon node.
+
+Example:
+       timer: timer@18102000 {
+               compatible = "img,pistachio-gptimer";
+               reg = <0x18102000 0x100>;
+               interrupts = <GIC_SHARED 60 IRQ_TYPE_LEVEL_HIGH>,
+                            <GIC_SHARED 61 IRQ_TYPE_LEVEL_HIGH>,
+                            <GIC_SHARED 62 IRQ_TYPE_LEVEL_HIGH>,
+                            <GIC_SHARED 63 IRQ_TYPE_LEVEL_HIGH>;
+               clocks = <&clk_periph PERIPH_CLK_COUNTER_FAST>,
+                        <&clk_periph PERIPH_CLK_COUNTER_SLOW>,
+                        <&cr_periph SYS_CLK_TIMER>;
+               clock-names = "fast", "slow", "sys";
+               img,cr-periph = <&cr_periph>;
+       };