This patch fixes bindings of existed "General Purpose Timer", and then add bindings of new "System Timer" on Mediatek SoCs.
Signed-off-by: Stanley Chu <[email protected]> --- .../bindings/timer/mediatek,mtk-timer.txt | 38 ++++++++++++++++---- 1 file changed, 32 insertions(+), 6 deletions(-) diff --git a/Documentation/devicetree/bindings/timer/mediatek,mtk-timer.txt b/Documentation/devicetree/bindings/timer/mediatek,mtk-timer.txt index b1fe7e9..d42247b 100644 --- a/Documentation/devicetree/bindings/timer/mediatek,mtk-timer.txt +++ b/Documentation/devicetree/bindings/timer/mediatek,mtk-timer.txt @@ -1,5 +1,14 @@ -Mediatek MT6577, MT6572 and MT6589 Timers ---------------------------------------- +Mediatek Timers +--------------- + +Mediatek SoCs have two different timers on different platforms, +- GPT (General Purpose Timer) +- SYST (System Timer) + +Please bind correct timers in each platforms. + + +** General Purpose Timer (GPT) Required properties: - compatible should contain: @@ -11,9 +20,8 @@ Required properties: * "mediatek,mt8135-timer" for MT8135 compatible timers * "mediatek,mt8173-timer" for MT8173 compatible timers * "mediatek,mt6577-timer" for MT6577 and all above compatible timers -- reg: Should contain location and length for timers register. -- clocks: Clocks driving the timer hardware. This list should include two - clocks. The order is system clock and as second clock the RTC clock. +- reg: Should contain location and length for GPT register. +- clocks: GPT is drived by system clock. Examples: @@ -21,5 +29,23 @@ Examples: compatible = "mediatek,mt6577-timer"; reg = <0x10008000 0x80>; interrupts = <GIC_SPI 113 IRQ_TYPE_LEVEL_LOW>; - clocks = <&system_clk>, <&rtc_clk>; + clocks = <&system_clk>; + }; + + +** System Timer (SYST) + +Required properties: +- compatible: Should contain + * "mediatek,mt6765-systimer" for MT6765 compatible timers +- reg: Should contain the location and length for system timer registers. +- clocks: System timer is drived by system clock. + +Examples: + + systimer@10017000 { + compatible = "mediatek,mt6765-systimer"; + reg = <0 0x10017000 0 0x1000>; + interrupts = <GIC_SPI 194 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&system_clk>; }; -- 1.7.9.5
