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The Realtek SYSTIMER (System Timer) is a 64-bit global hardware counter operating at a fixed 1MHz frequency. Thanks to its compare match interrupt capability, the timer natively supports oneshot mode for tick broadcast functionality. Signed-off-by: Hao-Wen Ting <haowen.ting@realtek.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org> Link: https://patch.msgid.link/20251126060110.198330-2-haowen.ting@realtek.com
48 lines
1.1 KiB
YAML
48 lines
1.1 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/timer/realtek,rtd1625-systimer.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Realtek System Timer
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maintainers:
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- Hao-Wen Ting <haowen.ting@realtek.com>
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description:
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The Realtek SYSTIMER (System Timer) is a 64-bit global hardware counter operating
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at a fixed 1MHz frequency. Thanks to its compare match interrupt capability,
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the timer natively supports oneshot mode for tick broadcast functionality.
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properties:
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compatible:
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oneOf:
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- const: realtek,rtd1625-systimer
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- items:
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- const: realtek,rtd1635-systimer
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- const: realtek,rtd1625-systimer
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reg:
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maxItems: 1
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interrupts:
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maxItems: 1
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required:
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- compatible
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- reg
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- interrupts
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additionalProperties: false
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examples:
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- |
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#include <dt-bindings/interrupt-controller/arm-gic.h>
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timer@89420 {
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compatible = "realtek,rtd1635-systimer",
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"realtek,rtd1625-systimer";
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reg = <0x89420 0x18>;
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interrupts = <GIC_SPI 112 IRQ_TYPE_LEVEL_HIGH>;
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};
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