xref: /freebsd/sys/contrib/device-tree/Bindings/timer/mediatek,mtk-timer.txt (revision b97ee269eae3cbaf35c18f51a459aea581c2a7dc)
1MediaTek Timers
2---------------
3
4MediaTek SoCs have different timers on different platforms,
5- CPUX (ARM/ARM64 System Timer)
6- GPT (General Purpose Timer)
7- SYST (System Timer)
8
9The proper timer will be selected automatically by driver.
10
11Required properties:
12- compatible should contain:
13	For those SoCs that use GPT
14	* "mediatek,mt2701-timer" for MT2701 compatible timers (GPT)
15	* "mediatek,mt6580-timer" for MT6580 compatible timers (GPT)
16	* "mediatek,mt6582-timer" for MT6582 compatible timers (GPT)
17	* "mediatek,mt6589-timer" for MT6589 compatible timers (GPT)
18	* "mediatek,mt7623-timer" for MT7623 compatible timers (GPT)
19	* "mediatek,mt8127-timer" for MT8127 compatible timers (GPT)
20	* "mediatek,mt8135-timer" for MT8135 compatible timers (GPT)
21	* "mediatek,mt8173-timer" for MT8173 compatible timers (GPT)
22	* "mediatek,mt8516-timer" for MT8516 compatible timers (GPT)
23	* "mediatek,mt6577-timer" for MT6577 and all above compatible timers (GPT)
24
25	For those SoCs that use SYST
26	* "mediatek,mt8183-timer" for MT8183 compatible timers (SYST)
27	* "mediatek,mt8186-timer" for MT8186 compatible timers (SYST)
28	* "mediatek,mt8192-timer" for MT8192 compatible timers (SYST)
29	* "mediatek,mt8195-timer" for MT8195 compatible timers (SYST)
30	* "mediatek,mt7629-timer" for MT7629 compatible timers (SYST)
31	* "mediatek,mt6765-timer" for MT6765 and all above compatible timers (SYST)
32
33	For those SoCs that use CPUX
34	* "mediatek,mt6795-systimer" for MT6795 compatible timers (CPUX)
35
36- reg: Should contain location and length for timer register.
37- clocks: Should contain system clock.
38
39Examples:
40
41	timer@10008000 {
42		compatible = "mediatek,mt6577-timer";
43		reg = <0x10008000 0x80>;
44		interrupts = <GIC_SPI 113 IRQ_TYPE_LEVEL_LOW>;
45		clocks = <&system_clk>;
46	};
47