tegrakernel/kernel/kernel-4.9/Documentation/devicetree/bindings/rtc/dw-apb.txt

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* Designware APB timer
Required properties:
- compatible: One of:
"snps,dw-apb-timer"
"snps,dw-apb-timer-sp" <DEPRECATED>
"snps,dw-apb-timer-osc" <DEPRECATED>
- reg: physical base address of the controller and length of memory mapped
region.
- interrupts: IRQ line for the timer.
- either clocks+clock-names or clock-frequency properties
Optional properties:
- clocks : list of clock specifiers, corresponding to entries in
the clock-names property;
- clock-names : should contain "timer" and "pclk" entries, matching entries
in the clocks property.
- clock-frequency: The frequency in HZ of the timer.
- clock-freq: For backwards compatibility with picoxcell
If using the clock specifiers, the pclk clock is optional, as not all
systems may use one.
Example:
timer@ffe00000 {
compatible = "snps,dw-apb-timer";
interrupts = <0 170 4>;
reg = <0xffe00000 0x1000>;
clocks = <&timer_clk>, <&timer_pclk>;
clock-names = "timer", "pclk";
};