tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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,mt7629-timer" for MT7629 compatible timers (SYST)
25 * "mediatek,mt6765-timer" for MT6765 and all above compatible timers (SYST)
26
27- reg: Should contain location and length for timer register.
28- clocks: Should contain system clock.
29
30Examples:
31
32 timer@10008000 {
33 compatible = "mediatek,mt6577-timer";
34 reg = <0x10008000 0x80>;
35 interrupts = <GIC_SPI 113 IRQ_TYPE_LEVEL_LOW>;
36 clocks = <&system_clk>;
37 };