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kernel_xiaomi_sm8450-device…/bindings/timer/csky,mptimer.txt
Murali Nalajala 719cc9aa79 dt-bindings: Add devicetree bindings to devicetree project
Add devicetree bindings snapshot to the devicetree project

Change-Id: I20b46d194bd3b107ddcb3e35283e6dafa27adec1
2019-05-31 16:45:27 -07:00

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C-SKY Multi-processors Timer
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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.
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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>;
};