xref: /OK3568_Linux_fs/kernel/Documentation/devicetree/bindings/timer/img,pistachio-gptimer.txt (revision 4882a59341e53eb6f0b4789bf948001014eff981)
1*4882a593Smuzhiyun* Pistachio general-purpose timer based clocksource
2*4882a593Smuzhiyun
3*4882a593SmuzhiyunRequired properties:
4*4882a593Smuzhiyun - compatible: "img,pistachio-gptimer".
5*4882a593Smuzhiyun - reg: Address range of the timer registers.
6*4882a593Smuzhiyun - interrupts: An interrupt for each of the four timers
7*4882a593Smuzhiyun - clocks: Should contain a clock specifier for each entry in clock-names
8*4882a593Smuzhiyun - clock-names: Should contain the following entries:
9*4882a593Smuzhiyun                "sys", interface clock
10*4882a593Smuzhiyun                "slow", slow counter clock
11*4882a593Smuzhiyun                "fast", fast counter clock
12*4882a593Smuzhiyun - img,cr-periph: Must contain a phandle to the peripheral control
13*4882a593Smuzhiyun		  syscon node.
14*4882a593Smuzhiyun
15*4882a593SmuzhiyunExample:
16*4882a593Smuzhiyun	timer: timer@18102000 {
17*4882a593Smuzhiyun		compatible = "img,pistachio-gptimer";
18*4882a593Smuzhiyun		reg = <0x18102000 0x100>;
19*4882a593Smuzhiyun		interrupts = <GIC_SHARED 60 IRQ_TYPE_LEVEL_HIGH>,
20*4882a593Smuzhiyun			     <GIC_SHARED 61 IRQ_TYPE_LEVEL_HIGH>,
21*4882a593Smuzhiyun			     <GIC_SHARED 62 IRQ_TYPE_LEVEL_HIGH>,
22*4882a593Smuzhiyun			     <GIC_SHARED 63 IRQ_TYPE_LEVEL_HIGH>;
23*4882a593Smuzhiyun		clocks = <&clk_periph PERIPH_CLK_COUNTER_FAST>,
24*4882a593Smuzhiyun		         <&clk_periph PERIPH_CLK_COUNTER_SLOW>,
25*4882a593Smuzhiyun			 <&cr_periph SYS_CLK_TIMER>;
26*4882a593Smuzhiyun		clock-names = "fast", "slow", "sys";
27*4882a593Smuzhiyun		img,cr-periph = <&cr_periph>;
28*4882a593Smuzhiyun	};
29