GNU Linux-libre 4.14.266-gnu1
[releases.git] / Documentation / devicetree / bindings / timer / img,pistachio-gptimer.txt
1 * Pistachio general-purpose timer based clocksource
2
3 Required properties:
4  - compatible: "img,pistachio-gptimer".
5  - reg: Address range of the timer registers.
6  - interrupts: An interrupt for each of the four timers
7  - clocks: Should contain a clock specifier for each entry in clock-names
8  - clock-names: Should contain the following entries:
9                 "sys", interface clock
10                 "slow", slow counter clock
11                 "fast", fast counter clock
12  - img,cr-periph: Must contain a phandle to the peripheral control
13                   syscon node.
14
15 Example:
16         timer: timer@18102000 {
17                 compatible = "img,pistachio-gptimer";
18                 reg = <0x18102000 0x100>;
19                 interrupts = <GIC_SHARED 60 IRQ_TYPE_LEVEL_HIGH>,
20                              <GIC_SHARED 61 IRQ_TYPE_LEVEL_HIGH>,
21                              <GIC_SHARED 62 IRQ_TYPE_LEVEL_HIGH>,
22                              <GIC_SHARED 63 IRQ_TYPE_LEVEL_HIGH>;
23                 clocks = <&clk_periph PERIPH_CLK_COUNTER_FAST>,
24                          <&clk_periph PERIPH_CLK_COUNTER_SLOW>,
25                          <&cr_periph SYS_CLK_TIMER>;
26                 clock-names = "fast", "slow", "sys";
27                 img,cr-periph = <&cr_periph>;
28         };