78 lines
1.9 KiB
YAML
78 lines
1.9 KiB
YAML
# SPDX-License-Identifier: GPL-2.0
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/rtc/renesas,sh-rtc.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Real Time Clock for Renesas SH and ARM SoCs
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maintainers:
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- Chris Brandt <chris.brandt@renesas.com>
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- Geert Uytterhoeven <geert+renesas@glider.be>
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properties:
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compatible:
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items:
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- const: renesas,r7s72100-rtc # RZ/A1H
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- const: renesas,sh-rtc
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reg:
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maxItems: 1
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interrupts:
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maxItems: 3
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interrupt-names:
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items:
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- const: alarm
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- const: period
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- const: carry
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clocks:
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# The functional clock source for the RTC controller must be listed
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# first (if it exists). Additionally, potential clock counting sources
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# are to be listed.
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minItems: 1
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maxItems: 4
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clock-names:
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# The functional clock must be labeled as "fck". Other clocks
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# may be named in accordance to the SoC hardware manuals.
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minItems: 1
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maxItems: 4
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items:
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enum: [ fck, rtc_x1, rtc_x3, extal ]
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power-domains:
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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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- interrupt-names
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- clocks
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- clock-names
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- power-domains
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additionalProperties: false
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examples:
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- |
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#include <dt-bindings/clock/r7s72100-clock.h>
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#include <dt-bindings/interrupt-controller/arm-gic.h>
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#include <dt-bindings/interrupt-controller/irq.h>
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rtc: rtc@fcff1000 {
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compatible = "renesas,r7s72100-rtc", "renesas,sh-rtc";
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reg = <0xfcff1000 0x2e>;
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interrupts = <GIC_SPI 276 IRQ_TYPE_EDGE_RISING>,
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<GIC_SPI 277 IRQ_TYPE_EDGE_RISING>,
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<GIC_SPI 278 IRQ_TYPE_EDGE_RISING>;
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interrupt-names = "alarm", "period", "carry";
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clocks = <&mstp6_clks R7S72100_CLK_RTC>, <&rtc_x1_clk>,
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<&rtc_x3_clk>, <&extal_clk>;
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power-domains = <&cpg_clocks>;
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clock-names = "fck", "rtc_x1", "rtc_x3", "extal";
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};
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