Add the MCT version 2 bindings for the s5e99xx SoC from samsung. Signed-off-by: Youngmin Nam <youngmin.nam@xxxxxxxxxxx> --- .../bindings/timer/samsung,s5e99xx-mct.yaml | 91 +++++++++++++++++++ 1 file changed, 91 insertions(+) create mode 100644 Documentation/devicetree/bindings/timer/samsung,s5e99xx-mct.yaml diff --git a/Documentation/devicetree/bindings/timer/samsung,s5e99xx-mct.yaml b/Documentation/devicetree/bindings/timer/samsung,s5e99xx-mct.yaml new file mode 100644 index 000000000000..c887c7797ca8 --- /dev/null +++ b/Documentation/devicetree/bindings/timer/samsung,s5e99xx-mct.yaml @@ -0,0 +1,91 @@ +# SPDX-License-Identifier: GPL-2.0 +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/timer/samsung,s5e99xx-mct.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Samsung Exynos SoC Multi Core Timer (MCT) + +maintainers: + - Krzysztof Kozlowski <krzk@xxxxxxxxxx> + +description: |+ + The Samsung's Multi Core Timer (MCT) version 2 module includes + one 64-bit FRC(Free Running Counter) and 12 comparators. + The FRC serves up-counter and starts running at power-on. + The 12 comparators use the FRC value to produce interrupts. + They will produce interrupts when their internal value is matched with the FRC value. + Theses interrupts can be used as local timer interrupt of each CPU. + +properties: + compatible: + enum: + - samsung,s5e99xx-mct + + clocks: + items: + - description: OSC clock + - description: PCLK clock + - description: RTC clock(optional) + minItems: 2 + + clock-names: + items: + - const: fin_pll + - const: mct + - const: rtc + minItems: 2 + + reg: + maxItems: 1 + + interrupts: + description: | + Interrupts should be put in specific order. + 0: Local Timer Interrupt 0 + 1: Local Timer Interrupt 1 + 2: Local Timer Interrupt 2 + 3: .. + 4: .. + i: Local Timer Interrupt n + minItems: 1 # 1 local timer interrupts + maxItems: 12 # 12 local timer interrupts + + div: + description: If present, OSC clock freqency will be divided with this value. + And the divided value will be provided to MCT module. + +required: + - compatible + - clock-names + - clocks + - interrupts + - reg + +additionalProperties: false + +examples: + - | + // In this example, the IP contains 12 local timers, using separate interrupts, + // so 12 local timer interrupts have been specified, + #include <dt-bindings/interrupt-controller/arm-gic.h> + + timer@10050000 { + compatible = "samsung,s5e99xx-mct"; + reg = <0x10050000 0x800>; + clocks = <&clock 1>, <&clock 10>; + clock-names = "fin_pll", "mct"; + + interrupts = <GIC_SPI 55 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 56 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 57 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 58 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 59 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 60 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 61 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 62 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 63 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 64 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 65 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 66 IRQ_TYPE_LEVEL_HIGH>; + }; -- 2.33.0
