xref: /freebsd/sys/contrib/device-tree/Bindings/timer/arm,sp804.txt (revision c66ec88fed842fbaad62c30d510644ceb7bd2d71)
1*c66ec88fSEmmanuel VadotARM sp804 Dual Timers
2*c66ec88fSEmmanuel Vadot---------------------------------------
3*c66ec88fSEmmanuel Vadot
4*c66ec88fSEmmanuel VadotRequired properties:
5*c66ec88fSEmmanuel Vadot- compatible: Should be "arm,sp804" & "arm,primecell"
6*c66ec88fSEmmanuel Vadot- interrupts: Should contain the list of Dual Timer interrupts. This is the
7*c66ec88fSEmmanuel Vadot	interrupt for timer 1 and timer 2. In the case of a single entry, it is
8*c66ec88fSEmmanuel Vadot	the combined interrupt or if "arm,sp804-has-irq" is present that
9*c66ec88fSEmmanuel Vadot	specifies which timer interrupt is connected.
10*c66ec88fSEmmanuel Vadot- reg: Should contain location and length for dual timer register.
11*c66ec88fSEmmanuel Vadot- clocks: clocks driving the dual timer hardware. This list should be 1 or 3
12*c66ec88fSEmmanuel Vadot	clocks.	With 3 clocks, the order is timer0 clock, timer1 clock,
13*c66ec88fSEmmanuel Vadot	apb_pclk. A single clock can also be specified if the same clock is
14*c66ec88fSEmmanuel Vadot	used for all clock inputs.
15*c66ec88fSEmmanuel Vadot
16*c66ec88fSEmmanuel VadotOptional properties:
17*c66ec88fSEmmanuel Vadot- arm,sp804-has-irq = <#>: In the case of only 1 timer irq line connected, this
18*c66ec88fSEmmanuel Vadot	specifies if the irq connection is for timer 1 or timer 2. A value of 1
19*c66ec88fSEmmanuel Vadot	or 2 should be used.
20*c66ec88fSEmmanuel Vadot
21*c66ec88fSEmmanuel VadotExample:
22*c66ec88fSEmmanuel Vadot
23*c66ec88fSEmmanuel Vadot	timer0: timer@fc800000 {
24*c66ec88fSEmmanuel Vadot		compatible = "arm,sp804", "arm,primecell";
25*c66ec88fSEmmanuel Vadot		reg = <0xfc800000 0x1000>;
26*c66ec88fSEmmanuel Vadot		interrupts = <0 0 4>, <0 1 4>;
27*c66ec88fSEmmanuel Vadot		clocks = <&timclk1 &timclk2 &pclk>;
28*c66ec88fSEmmanuel Vadot		clock-names = "timer1", "timer2", "apb_pclk";
29*c66ec88fSEmmanuel Vadot	};
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