xref: /freebsd/sys/contrib/device-tree/Bindings/timer/mediatek,mtk-timer.txt (revision dd41de95a84d979615a2ef11df6850622bf6184e)
1MediaTek Timers
2---------------
3
4MediaTek SoCs have two different timers on different platforms,
5- GPT (General Purpose Timer)
6- SYST (System Timer)
7
8The proper timer will be selected automatically by driver.
9
10Required properties:
11- compatible should contain:
12	For those SoCs that use GPT
13	* "mediatek,mt2701-timer" for MT2701 compatible timers (GPT)
14	* "mediatek,mt6580-timer" for MT6580 compatible timers (GPT)
15	* "mediatek,mt6589-timer" for MT6589 compatible timers (GPT)
16	* "mediatek,mt7623-timer" for MT7623 compatible timers (GPT)
17	* "mediatek,mt8127-timer" for MT8127 compatible timers (GPT)
18	* "mediatek,mt8135-timer" for MT8135 compatible timers (GPT)
19	* "mediatek,mt8173-timer" for MT8173 compatible timers (GPT)
20	* "mediatek,mt8516-timer" for MT8516 compatible timers (GPT)
21	* "mediatek,mt6577-timer" for MT6577 and all above compatible timers (GPT)
22
23	For those SoCs that use SYST
24	* "mediatek,mt8183-timer" for MT8183 compatible timers (SYST)
25	* "mediatek,mt8192-timer" for MT8192 compatible timers (SYST)
26	* "mediatek,mt7629-timer" for MT7629 compatible timers (SYST)
27	* "mediatek,mt6765-timer" for MT6765 and all above compatible timers (SYST)
28
29- reg: Should contain location and length for timer register.
30- clocks: Should contain system clock.
31
32Examples:
33
34	timer@10008000 {
35		compatible = "mediatek,mt6577-timer";
36		reg = <0x10008000 0x80>;
37		interrupts = <GIC_SPI 113 IRQ_TYPE_LEVEL_LOW>;
38		clocks = <&system_clk>;
39	};
40