46 lines
1.1 KiB
YAML
46 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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$id: http://devicetree.org/schemas/snps,arc-timer.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Synopsys ARC Local Timer
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maintainers:
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- Vineet Gupta <vgupta@synopsys.com>
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description: >
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Synopsys ARC Local Timer with Interrupt Capabilities
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- Found on all ARC CPUs (ARC700/ARCHS)
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- Can be optionally programmed to interrupt on Limit
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- Two identical copies TIMER0 and TIMER1 exist in ARC cores and historically
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TIMER0 used as clockevent provider (true for all ARC cores)
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TIMER1 used for clocksource (mandatory for ARC700, optional for ARC HS)
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properties:
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compatible:
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const: snps,arc-timer
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interrupts:
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maxItems: 1
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description: A single timer interrupt going into the parent interrupt controller.
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Use <16> for ARCHS cores, <3> for ARC700 cores.
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clocks:
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maxItems: 1
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required:
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- compatible
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- clocks
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additionalProperties: false
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examples:
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- |
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timer0 {
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compatible = "snps,arc-timer";
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interrupts = <3>;
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clocks = <&core_clk>;
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};
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