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Commit 732e5dca authored by Guo Ren's avatar Guo Ren Committed by Daniel Lezcano
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dt-bindings: timer: C-SKY Multi-processor timer 



Dt-bingdings doc for C-SKY SMP system setting.

Signed-off-by: default avatarGuo Ren <ren_guo@c-sky.com>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarDaniel Lezcano <daniel.lezcano@linaro.org>
parent a7ad38b0

Documentation/devicetree/bindings/timer/csky,mptimer.txt

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============================

C-SKY Multi-processors Timer

============================



C-SKY multi-processors timer is designed for C-SKY SMP system and the

regs is accessed by cpu co-processor 4 registers with mtcr/mfcr.



 - PTIM_CTLR "cr<0, 14>" Control reg to start reset timer.

 - PTIM_TSR  "cr<1, 14>" Interrupt cleanup status reg.

 - PTIM_CCVR "cr<3, 14>" Current counter value reg.

 - PTIM_LVR  "cr<6, 14>" Window value reg to triger next event.



==============================

timer node bindings definition

==============================



	Description: Describes SMP timer



	PROPERTIES



	- compatible

		Usage: required

		Value type: <string>

		Definition: must be "csky,mptimer"

	- clocks

		Usage: required

		Value type: <node>

		Definition: must be input clk node

	- interrupts

		Usage: required

		Value type: <u32>

		Definition: must be timer irq num defined by soc



Examples:

---------



	timer: timer {

		compatible = "csky,mptimer";

		clocks = <&dummy_apb_clk>;

		interrupts = <16>;

		interrupt-parent = <&intc>;

	};